Manual Quv

Literature Number: LU-8047 Revised: 26 Apr 07

Operating Manual

Accelerated Weathering Tester Ap plic able fo r Serial Number s: XX-XXXX-73 thru 75-basic XX-XXXX-73 th ru 75-se XX-XXXX-73 thru 75-spray XX-XXXX-73 th ru 75-cw

Table of Cont ents 1. Safety Informatio n (July 2006) 1.1 Electrical Shock hazard (July 2006) 1.2 European Electromagnetic Compatibility (July 2006) 1.3 Ultraviolet Hazards (July 2006)

8. Running a Test 8.1 Selecting a Test Cycle (July 2006) 8.1.1 Standard Test Cycles (Feb 2007) 8.1.2 Custom Test Cycles (July 2006) 8.2 Mounting Test Specimens (July 2006)

2. General Descripti on (July 200 6) 3. Set up

8.3 Repositioning Test Specimens (July 2006) 9. Calibration

3.1

Uncrating (July 2006)

3.2

Location (July 2006)

3.3 3.4

Electrical (July 2006) Water (July 2006)

9.1 UV Sensors (July 2006) 9.1.1 CR10 Calibration Radiometer (July 2006) 9.1.2 AutoCal Calibration Procedure (Apr 2007) 9.2 Panel Temperature Sensor (July 2006)

3.4.1 Condensation System (July 2006) 3.4.2 Water Spray System (July 2006) 3.4.3 Water Drains (July 2006)

10. Data Logg ing (Virtual Strip Chart) (July 2006 ) 10.1 Connecting the QUV to a Computer (July 2006) 10.2 Viewing the Data on a Computer (July 2006)

4. UV Ligh t System 4.1 Lamp Types (July 2006)

11. Maintenance

4.2 Irradiance Control (July 2006)

11.1 Replace Lamps (July 2006)

4.3 Lamp Cooling (July 2006)

11.2 Clean Water Pan (July 2006)

4.4 UV Baffle (July 2006)

11.3 Inspect Spray Nozzles (July 2006)

5. Moistur e System (July 2006) 5.1 Condensation (July 2006) 5.2 Water Spray (July 2006)

12. Troubl eshooti ng & Repair (July 2006) 12.1 Error Messages (Feb 2007) 12.2 Insufficient Water Volume (July 2006) 12.3 No Power (July 2006)

6. Temperature Control System

12.4 Loose Lamp Sockets (July 2006)

6.1 Panel Temperature Sensor (July 2006) 6.2 Lab Temperature Sensor (July 2006)

13. Replacemen t Parts (Jul y 2006)

6.3 Water Temperature Sensor (July 2006) 6.4 During UV (July 2006)

14. Technical Support & Service (July 200 6)

6.5 During Condensation (July 2006) 6.6 During Water Spray (July 2006) 7. Control ler Operation

15. Warranty Informatio n (July 2006) 16. Wiring Diagrams

7.1 Summary (July 2006)

16.1 V-2056, QUV/Basic (Apr 2007)

7.2 Displays (July 2006)

16.2 V-2057, QUV/se & QUV/cw (Apr 2007)

7.3 Keypad (July 2006)

16.3 V-2058, QUV/spray (Apr 2007)

7.4 Programming (July 2006) 7.4.1 P1: Set Test Duration (July 2006) 7.4.2 P2: Select Cycle/Step to Run (July 2006) 7.4.3 P3: Modify or Create a Test Cycle (July 2006) 7.4.4 P4: Calibrate Panel Temperature (July 2006) 7.4.5 P5: Set Alarm Volume (July 2006) 7.4.6 P6: Set Ethernet Address (July 2006) 7.4.7 V-2061-L, Flowchart (March 2005) 7.5 Diagnostics (July 2006)

17. Plumbing Diagrams 17.1 V-2059, QUV/spray (Apr 2007)

Section 1: Safety Information

1.

SAFETY INFORMATION (Revi sed Ju ly 2006)

Q-Lab accepts no responsibility for the consequences if the user fails to comply with the instructions in this operating manual. Q-Lab will accept responsibility for defective parts or components only if the machinery was defective at the time that the tester was shipped. Whenever it is necessary to replace any parts on your QUV, it is important that you use only parts that have been supplied or recommended by Q-Lab. Q-Lab accepts no responsibility for the consequences if the operator uses other parts. This symbol indicates, “ Attention!” Consult the operating manual. All caution and warning no tes in this manual are prece ded by this s ymbol.

Sec 1 pg 1

Section 1: Safety Information

1.1

Electri cal Shock Hazard (Revised Jul y 2006) This symbol will be found i n certain are as or on certain parts of the QUV . It warns of ele ctrical shock hazards. Only qualified se rvice personnel should attempt to service areas or parts of the QUV where this label appears.

The QUV uses 400 volts to operate its fluorescent UV lamps. When the QUV is in the UV Cycle, the rubber lamp sockets are energized with this voltage. If a lamp is plugged into a lamp socket on one side, but the socket is not attached on the other side, the exposed lamp pins may be energized with 400 volts. This voltage can be extremely dangerous. The QUV is equipped with interlock switches that cut off the power to the UV lamps anytime you open either of the trapezoidal End Covers.

Sec 1.1 pg 1

Section 1: Safety Information

1.2

European Electrom agnetic Compati bil ity (Revised Jul y 2006)

The QUV Test Chamber meets the European Electromagnetic Directive 89/336/EEC (as amended) and complies with the requirements of EN55011 and EN50082-2. This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

Sec 1.2 pg 1

Section 1: Safety Information

1.3

Ultravi olet Hazards (Revis ed Jul y 2006)

•

The QUV’s lamps may cause severe sunburn or eye inflammation.

•

Be sure you understand these hazards before you work with the tester.

•

Do not open the machine unless it is shut off or you are a qualified technician performing required maintenance or operation procedures as detailed in this manual.

•

Shut off lamps before opening machine and removing test panels.

•

Never look at lighted UV lamps without UV absorbing goggles.

•

Don’t be fooled by the lamps’ cool blue appearance or by the lack of heat and visible light. The QUV’s lamps are efficient generators of UV light similar to that in sunlight. These lamps require safety precautions similar to the precautions for the sunlamps used for sun-tanning and medical therapy. Exposure of a few minutes to unshielded lamps may cause painful sunburn or eye inflammation. This eye inflammation is much like severe sunburn on the surface of your eyeball, and is familiar to skiers as “snow blindness.” As with sunlight, extensive or repeated exposures may lead to premature aging of the skin or permanent skin damage.

•

Sunburn and eye inflammation are delayed reactions. Symptoms (pain, redness, hot sensation) don’t appear until 4 to 12 hours after UV exposure.

•

After severe sunburn and eye inflammation, skin and eyes may be more sensitive to future UV exposures, including sunlight.

•

There is no UV hazard from the QUV in normal operation with doors closed. With doors closed, UV leakage from the QUV is less than 1/20 the intensity of the UV from sunlight transmitted through a closed window. With doors open but with test panels in place, UV leakage is still less than sunlight through a window. Note: the QUV does not produce any appreciable infrared radiation.

•

Burning effects of UV lamps depend on duration of exposure, distance from lamps, and percentage of lamp surface that is visible. Figures show time of permissible daily exposure to light from the QUV under various conditions. These times are based on Threshold Limit Values (TLV) for UV exposure published by the American Conference of Governmental Industrial Hygienists. The Threshold Limit Values represent conditions under which it is believed that nearly all workers may be repeatedly exposed without adverse effect. These TLVs should not be used for determining exposure of photosensitive individuals to UV. The TLVs should be used as guides in control of UV exposure, and should not be regarded as a fine line between safe and dangerous levels. Note that 12 successive exposures of 5 seconds during a day is the equivalent of a single exposure of 1 minute.

•

If exposure to UV lamps is necessary, wear UV absorbing goggles. Protect skin with opaque clothing or a quality sunscreen lotion (e.g. 5 percent PABA), not a “suntan” lotion.

•

Individuals with light complexion are more susceptible to UV, and some individuals are allergic to UV. Many common medications increase your sensitivity to UV (including sunlight).

Sec 1.3 pg 1

Section 1: Safety Information

•

Do not use the UV lamps for any purpose except QUV testing. When discarding the lamps, disable them to prevent unauthorized use. To disable, remove two of the end-pins with a wire cutter or pliers (do not break lamps). UV lamps are not useful for plant growth or similar purposes.

Warnin g - Risk Of Burns. Limi t Exposur e. Use Protective G ear.

One holderasremoved. 50 mm from sample lights (same sample): Hand allowable daily exposure is 1 minute.

One sample holder removed. Hand 30 cm from lights: allowable daily UV lamp exposure 6 minutes. Face 1 m from lights: allowable daily exposure 18 minutes.

All sample holders removed. Hand 30 cm from lights: allowable daily UV lamp exposure 2 minutes. Face 1.0 m from lamps: allowable daily exposure 6 minutes.

Sec 1.3 pg 2

Section 2: General Description

2.

GENERAL DESCRIPTION (Revised Ju ly 2006)

The QUV Accelerated Weathering Tester is a laboratory simulation of the damaging effects of weathering. It is used to predict the relative durability of materials exposed to the outdoor environment. Rain and dew are simulated by a revolutionary condensation system and/or a water spray system. The damaging effects of sunlight are simulated by fluorescent UV lamps. Exposure temperature is automatically controlled, as is the daily sequence of UV periods and moisture periods. In a few days or weeks, the QUV can produce damage that might occur over months or years of outdoor exposure. Deterioration observed includes fading, chalking, cracking, crazing, hazing, blistering, gloss loss, strength loss, and embrittlement.

Simplified Cross Section of QUV

Recognition.

The QUV/spray conforms to the following standards (among others). ASTM G-154 (Previously G-53), Light/Water Exposure of Nonmetallic Materials ASTM D-4587, Light/Water Exposure of Paint ASTM D-4329, Light/Water Exposure of Plastics ASTM D-4799, A. Weathering of Bituminous Roofing Materials BS2782, Part 5, Methods 540B (Exp. to Lab Light Sources) ISO 4892 Plastics D Plastics Exposure to Lab Light Sources SAE J2020, Accelerated Exposure of Automotive Exterior Materials General Motors TM-58-10

Sec 2 pg 1

Section 3: Set Up

3.

SET UP

3.1

Uncrati ng (Revised Jul y 2006)

Cut the metal straps that hold fiberboard carton to skid. Lift off the fiberboard carton. Cut metal straps connecting unit to skid. Lift the unit off the skid and move into place. Remove adhesive tape from various parts on inside and outside of unit.

Caster Installation: sockets in the legs.

To install casters, prop up one end of the QUV on a box and push the casters into the

Sec 3.1 pg 1

Section 2: General Description

3.2

Loc ation (Revised Jul y 2006)

The QUV is intended for indoor use only. The specific environmental conditions are discussed below. Room Temperature: The optimal place for a QUV is in an air-conditioned lab or office. The QUV operates best in a room where the temperature is between 70 °F (21°C) and 80°F (27°C). Room temperatures outside this range can cause poor control of test temperature. High room temperature can also prevent proper condensation from forming on the test specimens because of inadequate specimen cooling. Ventilation: Each QUV generates an average of 700 watts of heat on a continuous basis. That’s equivalent to 2400 BTU/hr. This should not strain ordinary air-conditioning because it produces only about as much heat as two people. Each QUV also evaporates about 8 liters of water per day. The QUV should be located away from strong drafts that can cause one end of the machine to be cooler than the other. Relative Humidity: The maximum relative humidity in the room should be 80% for temperatures up to 31°C decreasing linearly to 50% at 40° C. Transport and Storage Temperature: Pollution Control:

-40ºC to 80ºC

Rated as Pollution Degree II for protection against ambient pollution.

Sound Pressure Level:

Sound Pressure Level does not exceed 74dBA.

Al ti tu de: 2000 meters or less. Operation: The QUV is suitable for continuous operation. Floor Space: When you get several QUV Weathering Testers in the same room, it’s very helpful to maintain proper spacing between testers, and between testers and the wall. If the QUVs are jammed together too tightly, it becomes difficult to open the doors, remove samples, and perform maintenance. The figure below shows the spacing that we recommend from our experience.

Floor Plan – Multiple QUV Installations

Sec 3.2 pg 1

Section 2: General Description

3.3 Electri cal (Revis ed Jul y 2006) The QUV comes with its own power cord. The electrical requirements are given below. Voltage : The electrical voltage is shown on the nameplate on the rear of the QUV next to the power switch. Two versions are available, 120v and 230v. The voltage supplied to the QUV must be within ±10% of the voltage shown on the nameplate. Current: The maximum current draw for the 120 volt QUV/se and QUV/spray is 16 amps and the 120 volt QUV/basic is 14 amps. The maximum current draw for the 230 volt QUV/se and QUV/spray is 8 amps and the 230 volt QUV/basic is 7 amps. Frequency: The QUV will operate on either 50 or 60 hz. Power Switch: The power switch has a built in circuit breaker, 20A for 120 volt machines and 10A for 230 volt machines. Therefore, if you connect several QUVs to a high capacity circuit, each QUV will still have adequate over-current protection. Power Receptacle: The power receptacle must be located in close proximity to the QUV and within easy reach of the Operator. Do not use an extension cord. The power cord plug is the main disconnect device on the QUV so it must be pulled from the receptacle when servicing the QUV. Plug: A 3-prong grounding plug is provided for 120V testers. No plug is supplied with 230V machines. The user must attach their own 3-prong grounding plug according to local electrical codes. The plug terminals should be connected to the wires as shown below.

Power: Neutral: Safety earth ground: Transient Overvoltage:

120V Black White Green

230V Brown Blue Green/Yellow

Installation Category II of transient overvoltages.

Sec 3.3 pg 1

Section 2: General Description

3.4

Water (Revised Ju ly 2006)

All QUV’s require water for the condensation system. QUV/spray models also require water for the water spray system. The necessary water connections and requirements are described below. Note: If the QUV is going to run UV steps only, it is not necessary to connect water to the QUV.

Sec 3.4 pg 1

Section 2: General Description

3.4.1 Condensati on Syst em (Revised July 20 06) Water for the condensation system is supplied by connecting a water line to the water feed located on the right rear of the QUV. We recommend using the 1/4 inch (6 mm) plastic tubing (supplied with the QUV) for this connection but copper tubing may also be used.

Water Feed

Purity: Ordinary tap water is sufficient. Distilled water is not required, since the water that contacts the panels is distilled when it vaporizes from the water pan. However, a distilled or de-ionized water source can reduce periodic clean-out of solids which collect in the bottom of the water pan. Do NOT pre-treat the water with a “water softener” as this merely exchanges sodium ions for the ions previously in your water supply. A water softener can increase the corrosiveness of the water. Pressure: The water pressure should be at least 2 psi (13.8 kPa) but not more than 80 psi (550 kPa). Volume: Water consumption is roughly 8 liters per day. Connections: To make is easier to connect to your water system we have included the kit shown below. With this kit you can easily connect to an existing water line. No drilling or soldering is necessary because the saddle valve is self-piercing. Install the saddle valve as shown and then connect the saddle valve to the QUV water feed valve with 1/4 inch (6 mm) tubing.

Sec 3.4.1 pg 1

Section 2: General Description Adju st men t: Once the water is turned on, water will flow into the water feed and then into the water pan in the QUV. Be sure the QUV is reasonably level so that water covers the entire bottom of the water pan. The QUV water feed is adjusted at the factory so that the water level in the water pan is 10 mm to 15 mm.

Water Level Control System

Sec 3.4.1 pg 2

Section 2: General Description

3.4.2 Water Spray System (QU V/spray only ) (Revis ed July 2006 ) Water for the spray system is supplied by connecting a water line to the shut off valve located underneath the right side of the QUV. This connection can be made by pushing a ½ inch (12 mm) hose over the hose barb fitting and securing it with a hose clamp.

Hose barb fitting

Purity: Unlike the water for the condensation system, the water for the spray system should be purified. The water should have a resistivity greater than 200 kohms-cm. This will require deionization, distillation, or reverse osmosis and possibly filters. Less pure water can lead to spotting of the specimens and clogging of the spray nozzles. To avoid contamination, all pipes, valves, and fittings between the purification equipment and the QUV/spray should be stainless steel or plastic. Do not use iron, steel, galvanized, copper, or brass. The pH of the water should be between 6.0 and 8.0. Pressure: The water pressure must be at least 25 psi (172 kPa) so that the spray spreads out and completely covers the test specimens. The maximum pressure should be less than 80 psi (550 kPa). Volume: The water flow rate is 7 liters per minute (LPM). Most test cycles, however, call for water spray only a few minutes per day. Water Temperature: The temperature of the spray water may effect the severity of the test. Colder spray water may cause more severe thermal shock. Warmer spray water might perhaps cause more severe damage in long term erosion tests. The QUV/spray does not include provisions for heating or cooling the spray water. Spray water temperature depends on the water system in your factory, your climate, and the temperature of your water storage tank if any. If you have reason to believe that the spray water temperature is significantly skewing your particular test results, it will be necessary to add heating or cooling to the water supply before it enters the QUV/spray.

Sec 3.4.2 pg 1

Section 2: General Description

3.4.3 Water Drain s (Revised Ju ly 2006) Water Pan Cleaning Drain: This drain hose is already attached and is clamped at the bottom. This hose should remain clamped during operation. It is only unclamped to empty the water pan for cleaning or other maintenance. When doing this, the tube between the water feed and the machine should be clamped shut so that water does not flow out the water feed. Water Fe ed Overflow Drain : The ½ inch (12mm) hose supplied with the QUV should be connected to the water feed overflow port and run to a floor drain. This is in case the water feed valve fails to shut off. If water is ever seen in this hose the water feed valve should be replaced. Water Pa n Overflo w Drain (QUV/ spray onl y): The 1-¼ inch (32 mm) hose supplied with the QUV must be attached to the large hose barb fitting under the QUV that extends from the bottom of the water pan. In order to attach this hose, first soak it for several minutes in hot tap water. Soaking it in hot water will make it more flexible. Next, lubricate the hose barb fitting. Use alcohol or oil for lubrication. Then, gently work the 1-¼ inch (32 mm) drain hose onto the hose barb fitting and run the other end to a floor drain.

Water Feed Overflow Drain

Water Pan Overflow Drain

clamp Water Pan Cleaning Drain

Sec 3.4.3 pg 1

Section 4: UV Light System

4.

UV LIGHT SYSTEM

4.1

Lamp Types (Revised Jul y 2006)

The QUV uses fluorescent UV lamps to reproduce the damaging effects of sunlight. There are four types to choose from: UVA-340, UVA-351, UVB-313 EL, and QFS-40. All of these lamps produce mainly ultraviolet rather than visible or infrared light. In addition to the four types of UV lamps, ordinary cool white lamps can be used in the QUV/cw. These produce mainly visible light rather than UV. All are dimensionally and electrically the same as normal 40 watt fluorescent lamps. The lamps differ in the total amount of energy emitted and in the wavelength spectrum. Differences in energy output or wavelength spectrum can cause significant differences in test results. The particular application determines which lamp should be used. UVA Lamps UVA lamps are especially useful for comparing different types of polymers. Because UVA lamps do not have any UV output below the normal solar cutoff of 295nm, they usually do not degrade material as fast as UVB lamps. However, they usually provide better correlation with actual outdoor weathering. UVA-340: The UVA-340 provides the best possible simulation of sunlight in the critical short wavelength region from 365 nm down to the solar cutoff of 295 nm. Its peak emission is at 340 nm. UVA-340 lamps are especially useful for comparison tests of different formulations. UVA-351: The UVA-351 simulates the UV portion of sunlight filtered through window glass. It is most useful for interior applications, the testing of some inks and for polymer damage that can occur to products in an environment near a window. UVB Lamps UVB lamps emit unnatural, short wavelengths of UV below the solar cutoff of 295 nm. As a result, they typically cause materials to degrade faster than UVA lamps. Consequently, they are popular for QC tests and for testing very durable materials. Since they emit unnaturally short wavelengths, however, they can produce compared to distribution actual outdoor weathering. Two amounts types of UVB lamps available.anomalous They haveresults the same spectral but the emit different of total UV. are QFS-40: Also know as FS-40 or F40 UVB, this is the srcinal QUV lamp. FS-40 lamps have been used for many years, and are still specified in some automotive test methods, particularly for coatings. QFS-40 lamps should only be used in the QUV/basic. UVB-313 EL: Compared to the QFS-40 lamp, the UVBV-313 EL produces substantially higher UV and, therefore, faster test results. Also, the UVB-313 EL can be used in place of the QFS-40 in the QUV/se and QUV/spray to decrease the output of the UVB-313 EL to mimic the irradiance of the QFS-40. This allows longer lamp life and minimizes lamp replacement costs. Cool White Lamps Cool white lamps are commonly used in commercial, retail, and office environments. The same cool white lamps can be used in the QUV/cw but at much higher intensities to test for indoor photostability of materials. Do Not Mix Differe nt Types of Lamps: Mixing different types of lamps in a QUV will produce major inconsistencies in the light falling on the samples. It also complicates calibration. Some users want to put UV-A lamps on one side of the QUV and UV-B lamps on the opposite side. Do not do this either. A small amount of UV from the lamps in each bank travels across the chamber and adds to the UV striking the samples on the other side. If you have different types of lamps on opposite sides of your QUV, you will get stripes of different types and severity of degradation (usually visible as a striped pattern).

Sec 4.1 pg 1

Section 4: UV Light System

1.2

Sunlight

UVB-313 EL (0.67 W/m2 @ 310nm) 1.0

UVA-340 (0.68 W/m2 @ 340nm) QFS-40 (0.48 W/m2 @ 310nm)

0.8

) 2 /m W ( e c 0.6 n ia d a rr I

Sunlight thru Glass

0.4

UVA-351 (0.45 W/m2 @ 340nm) 0.2

0.0 260

280

300

320

340

360

380

400

Wavele ngth (nm)

UV Lamps Compared to Sunlig ht 1.8

Sunlight thru Glass 1.6

1.4

1.2

) 2 /m1.0 (W e c n ia d 0.8 a r Ir

Cool Whites in QUV (20,000 lux)

0.6

Cool Whites in typical office (1,000 lux)

0.4

0.2

0.0 300

350

400

450

500

550

600

Wavelength (nm)

Cool White Lamps Compare d to Sunlight

Sec 4.1 pg 2

650

700

Section 4: UV Light System

4.2

Irradiance Contr ol (Revised Jul y 2006)

In addition to speed, one advantage that laboratory weathering testers have over actual outdoor exposures is reproducibility of results. To achieve this reproducibility, testers must have control of the critical parameters of light, moisture, and temperature. Control of irradiance in a laboratory tester is particularly important.

Like any lamps, the QUV lamps loose output as they age. QUV’s that do not have Solar Eye irradiance control (QUV/basic) use a lamp replacement and rotation system to compensate for lamp aging. See section 11.1 for this procedure. This system works well for many applications but it has an inherent limitation. The replacement/rotation system cannot compensate for lot-to-lot differences in lamps or for differences in ambient temperature. Also, there is always some small drop in irradiance between rotations (for a detailed discussion see Q-Lab Bulletin LU-8010, Controlled Irradiance in Laboratory Weathering).

QUV’s that do have the Solar Eye irradiance control system (QUV/se, QUV/spray, QUV/cw) control the irradiance using a feedback system. The user chooses the exact level of irradiance and the Solar Eye maintains the irradiance automatically. The controller monitors the UV intensity via four sensors at the sample plane and a four channel feedback loop system compensates for any variability by adjusting the power to the lamps.

Controller

1 t s a ll a B

2 t s a ll a B

3 t s a ll a B

4 t s a ll a B

1

3

4

2 Sample Plane

The UV sensors are built into special black panels in the center of the sample exposure area. There are two sensors in the front and two in the back of the QUV. Each sensor monitors the irradiance of two lamps. The controller adjusts the power to each pair of lamps to maintain the programmed irradiance. Each sensor must be calibrated separately. Sensor lenses should be periodically cleaned with a clean, soft cloth.

Sec 4.2 pg 1

Detector

Lamps (all same age)

Sample Plane

Section 4: UV Light System

The irradiance level can be set from very low to very high. If you wish to run a particular test method, and the irradiance is specified in the test method, then use that irradiance. If you’re not interested in running a particular test method, then set the irradiance based on the following suggestions.

UVA-340 Lamps •

0.68 W/m2 at 340nm equivalent to noon summer sunlight for quick results without sacrificing

•

1.38 W/m2 at 340nm 2x solar maximum for fast results.

•

0.35 W/m2 at 340nm so called "Average Optimum" (equivalent to March/September sunlight) for "average" or low UV exposures.

correlation.

UVB-313 Lamps •

0.67 W/m2 at 310nm typical

•

1.23 W/m2 at 310nm for extremely fast tests, quality control applications, or for testing very durable materials.

•

0.48 W/m2 at 310nm for greatly extended lamp life when using UVB-313 lamps for SAE J2020

Sec 4.2 pg 2

Section 4: UV Light System

4.3

Lamp Cooli ng (Revised Jul y 2006)

Fluorescent lamps are mercury vapor lamps. The coolest spot on the bulb wall controls the mercury vapor pressure. Because fluorescent lamps work most efficiently at about 40°C, the QUV has fans at each end of the control housing to cool the ends of the lamps. These lamp cooling fans pull room air over the ends of the lamps (air from these fans does not enter the test chamber). The lamp cooling fans operate during the entire UV cycle to help the lamps operate more efficiently. The end covers (i.e., the two trapezoid shaped metal covers that go on each end of the QUV and conceal the ends of the lamps) must be in place to properly direct the air over the ends of the lamps. To check the fans’ operation, listen for a faint hum at either end of the control housing.

Sec 4.3 pg 1

Section 4: UV Light System

4.4

UV Baff le (Revi sed Ju ly 2006)

A special system of UV baffles (patented) creates exceptionally uniform irradiance from the top to the bottom of the sample plane. In competitive testers lacking these baffles, the UV intensity is significantly lower at the extreme top and bottom of the sample mounting area than it is near the middle. One reason for this is that samples in the center of the sample plane receive UV from several lamps at once, while samples at the top and bottom are effected by only one lamp. A second reason is that some UV light from one side of the chamber travels to the other side of the chamber and adds to the UV striking that side. Most of this crossover UV hits in the center of the sample exposure area. The UV baffles selectively block and reflecs UV crossing over from side to side, thus correcting the top-to-bottom irradiance profile. The baffle consists of aluminum strips running parallel to the lamps. One of these baffles is located between the center lamps in each bank. A second baffle is near the top of the test chamber, midway between the front and back of the chamber.

Sec 4.4 pg 1

Section 5: Moisture System

5.

MOISTURE SYSTEM

(Revised Ju ly 2006)

All QUV’s produce the effects of outdoor moisture by condensation. The QUV/spray has the added ability to spray water on the test specimens.

5.1 Condensatio n (Revis ed Jul y 2006) An essential feature of the QUV’s condensation system is that panels actually form the side wall of the test chamber and provide the closure that keeps the hot water vapor inside the chamber. Room air on the back side of the panels cools them to a few degrees below the vapor temperature. This temperature difference causes liquid water to condense on the panels. The swing-up door covering the panels does not seal, but instead allows room air to reach the backs of the test panels. However, the swing-up door does regulate the way that convection currents cool the panels, and it reduces fluctuations in panel temperature due to drafts and room temperature changes. Thick specimens of insulating material, such as wood or rubber, may exhibit inadequate condensation because of poor heat transfer. To increase condensation, increase heat transfer by moving the QUV to an air-conditioned room or increasing the condensation cycle temperature. During the condensation cycle, the water is heated by a heating element located under the water pan. Water vapor fills the test chamber, which reaches 100 percent humidity at equilibrium. Vapor continually condenses on the test panels, which are kept at a lower temperature by room air on their back surface. Condensation runs off the test panels and back into the water pan. The condensation on the test panels has a high degree of chemical purity because the water becomes distilled as it vaporizes from the pan. A vent slot around the top of the water pan assures that the condensing vapor is saturated with oxygen. Some vapor will escape through this vent and some will be lost from around the panels.

Sec 5.1 pg 1

Section 5: Moisture System

5.2 Water Spray (Revised Jul y 2006)

The QUV/spray can spray water on test specimens to produce thermal shock or erosion. Any combination of spray and/or condensation can be programmed. The spray system consists of 12 spray nozzles (6 on each side) and the associated piping, controls and drain. The nozzles are mounted between the UV lamps. When the QUV is spraying water, the lamps are off.

Spray Flow Rate Adjustment: The recommended flowrate is 7 LPM. This is enough flow to cause the spray to fan out and cover the entire specimen area. At lower flow rates, the spray will not cover the entire area. The water flow is regulated by the following components on the lower part of the machine. All are located in the lower rear, except the Flow Meter, which is on the lower front of the QUV. See the Plumbing Diagram at the back of the Operating Manual for a detailed description of all the system components. •

Ball Valve allows you to manually shut off the flow of water.

•

Spray Water Filter Assembly the water for particulates.

•

Flow Meter indicates the rate of water flow in liters per minute (LPM).

•

Solenoid Valve is opened and closed by electrical signals from the controller. This is the valve that turns the sprays on and off during the test.

•

Pressure Regulator maintains a constant water pressure, which helps maintain a constant flow rate through

filters

thethe nozzles. To setand the turn pressure, on water spray the turn Pressure Adjustment Screw until the Flow Meter reads 7 LPM.

Sec 5.2 pg 1

Section 6: Temperature Control System

6.

TEMPERATURE CONTROL SYSTEM

6.1

Panel Temperatur e Senso r (Revis ed Jul y 2006)

The panel temperature sensor measures the temperature of ypical test specimens placed in the QUV. The sensor is mounted on a black panel (along with Solar Eye sensors No. 1 & 2) in the front-center of the specimen area.

Sec 6.1 pg 1

Section 6: Temperature Control System

6.2

Lab Temperatur e Senso r (Revised July 2006)

The lab temperature sensor measures the temperature of the air surrounding the QUV. The sensor is mounted under the QUV. The lab temperature sensor is used to help diagnose if high or low panel temperature faults are due to the lab temperature.

Sec 6.2 pg 1

Section 6: Temperature Control System

6.3

Water Temperatu re Senso r (Revis ed J uly 2006)

The water temperature sensor measures the temperature of the water inside the QUV. The sensor is mounted in a tube in the water pan. The water temperature sensor is used to detect if the water pan is empty and for fast heat up at the beginning of condensation steps.

Sec 6.3 pg 1

Section 6: Temperature Control System

6.4

UV Cycl e (Revi sed Ju ly 2006)

The temperature control system during UV steps consists of a blower, air heater, air distribution system, panel temperature sensor, and controller. •

Blower. The blower is located on the underside of the unit. It operates continuously throughout the UV cycle.

•

Air Heater. The air heater is located in the air tube above the blower. It heats the air from the blower when necessary.

•

Air Dist ri bu ti on . Air from the blower enters the test chamber through the air tube in the center of the water pan. An air deflector directs the air throughout the test chamber. A water pan cover insulates the air from the cooling effects of the water. The air eventually vents to the room through the air vent slot around the top of the water pan.

The minimum panel temperature is about 45ºC. This is due to the heat from the lamps. To reach higher temperatures, the controller turns on the air heater based on the set point and actual panel temperature.

Sec 6.4 pg 1

Section 6: Temperature Control System

6.5

Condensati on Cycle (Revis ed Jul y 2006)

The temperature control system during condensation steps consists of a water heater, panel temperature sensor, water temperature sensor, and controller. The water heater is located below the water pan. The blower does not operate during most of the condensation cycle. However, the blower is operated for the first few minutes of the condensation cycle to provide a rapid cooling of the test chamber. The controller sets the length of time that the blower operates. It has been preset at the factory to run until the temperature drops to the condensation temperature set-point.

Sec 6.5 pg 1

Section 6: Temperature Control System

6.6

Spray Cycle (Revis ed Jul y 2006)

There is no temperature control during spray steps. The water heater, air heater, and blower are all off. The actual panel temperature is displayed but no set point temperature is possible.

Sec 6.6 pg 1

Section 7: Controller Operation

7.

CONTROLLER OPERATION

7.1

Summary (Revised Jul y 2006)

One of the main features of the QUV Accelerated Weathering Tester is the microprocessor controller. This built in computer controls all functions of the tester. Interactive software allows easy programming using the keypad and LCD displays. Many common test cycles have been pre-programmed for the user to choose from, or custom test cycles can be easily created. A timer can be set to automatically stop a test after a given time. The controller continuously displays all test status conditions, including set points and actual values and continuously monitors for errors (such as low temperature if a heater burns out) and will automatically stop a test if an error is detected.

Sec 7.1 pg 1

Section 7: Controller Operation

7.2

Displ ays (Revised Jul y 2006)

The controller uses LCD displays to show the various test parameters and error messages. These parameters are always displayed in the same location on the control panel as shown below.

I r ra d i an c e W /m 2 @ C o ntr ol W a v el e ng th

Ste p Ti me

°C

Test Time

A ct u a l:

A ct u al:

El a pse d:

Elapsed:

Se t :

Se t :

Se t :

Set:

1

2

3

Hours: Minutes

4

Tot al Tim e

Status

Elapsed:

Hours

Hours

Messa g e

QUV/se & QUV/spray Disp lays

°C

Lamps Top Pair:

Actual:

Bottom Pair:

Set: Front

Back

Step Time

Ho urs : Min utes

Test Time

Total Time

Ho ur s

Ho ur s

Status

Message

QUV/basic Displ ays Irradiance (QUV/se & QUV/spray): This shows the irradiance for the current step running. The bottom line shows the irradiance set-point as programmed by the user. The top line shows the actual irradiance 2 for each of the four pairs of lamps. The irradiance is displayed in W/m at 310nm for UV-B lamps and 340nm for UV-A lamps. Lamps (QUV/basic): This shows if the lamps are on or off. The bottom line shows the bottom lamps and the top line shows the top lamps. Lamps (QUV/cw): shows the irradiance for The the current running. The irradiance bottom lineforshows irradiance set-point This as programmed by the user. top linestep shows the actual each the of the 4 four pairs of lamps. The irradiance is displayed in lux x10 for cool white lamps. ºC: This shows the panel temperature for the current step running. The bottom line shows the temperature set point as programmed by the user. The top line shows the actual black-panel temperature. If the temperature is followed by *, this indicates that a heater is currently on. Step Time: This shows the time for the current step in the test cycle. The bottom line shows the time required to perform the current step (hours : minutes) as programmed by the user. The top line shows the elapsed time Test Time: This shows the time for a particular test. The bottom line shows the desired duration as programmed by the user (0 to 9999 hours). The top line shows the amount of time the test has run. Total Time: This shows the total number of hours that the QUV has operated. Status Display: This tells the user if the machine is running and what test cycle it is running. A typical status message is “RUNNING CYCLE A = ASTM G154 CYCLE 1.” The status line is also used for programming. Message D isp lay: This tells the user what step in the test cycle is running. A typical message is “A/STEP 1 UV 60ºC 0.89W/M2 0:00/8:00”. The meaning of this message is described in the programming section. The message display is also used for error/warning messages. Many are intended to be informational and do not indicate there is something wrong with the QUV. A typical message is “OUTER COVER IS OFF.” When the covers are replaced, the message disappears.

Sec 7.2 pg 1

Section 7: Controller Operation

7.3

Keypad (Revised Jul y 2006)

The controller has a 12-button keypad to tell the controller what to do. The keypad is shown below.

?

Prog ram

Escape

Enter

Silence

Cl ear

Al ar m

RUN

STOP Irradia n ce Calibration

RUN: This key is used to start running a test. When pushed, the QUV will resume exactly where it was when the stop key was pushed, unless the user has selected a different test cycle or step in the program. The selected test cycle will repeat itself in an endless loop. A green LED on the key lights up when in RUN mode. STOP: This key is used to stop a test. When pushed, the QUV blower runs for one hour to cool down and dry-off the test specimens so they are not exposed to further degradation from heat or moisture. A blue LED on the key lights up when in STOP mode. SILENCE: This key silences the alarm beeper when an error occurs to prevent the beeper from annoying the user. It does not clear the error, it only silences it. If there are multiple errors, the alarm may immediately sound again. CLEAR: This key is used to cancel an error message. After pressing the “CLEAR” key you must press the “ENTER” key. If there are multiple messages, each must be cleared separately. PROGRAM: This key is used to enter the Program Mode. Pressing the “PROGRAM” key allows the user to set a test duration, select a test cycle, modify or create a test cycle, calibrate the temperature sensor, set the alarm volume, or set an Ethernet address to connect to a computer. Programming instructions are in section 7.4. UP/DOWN ARROWS: These keys are used to change a parameter in the status display when in the program mode. LEFT/RIGHT ARROWS: These keys are used to move the cursor in the status display when in the program mode. ?: This key is used to enter the Diagnostic Mode. Pressing the “?” key allows the user to obtain information such as how much the air heater is on, the software version, the number of hours since the UV sensors were last calibrated, etc. The complete list of diagnostic messages is shown in the diagnostics section. ENTER: This key is used to accept the current selection when programming, and moves forward one level in the program menu. ESCAPE: This key is used to cancel the current selection when programming, and moves back one level in the program menu.

Sec 7.3 pg 1

Section 7: Controller Operation Al arm : The alarm LED is a red indicator light that flashes when most errors or messages occur. In addition to the light, an audible alarm will usually sound. The alarm will also beep whenever a key is pushed. Irradiance Calibration: This is a port used to connect the CR10 calibration radiometer to the QUV when calibrating the UV sensors. This is described in the calibration section.

Sec 7.3 pg 2

Section 7: Controller Operation

7.4

Progr ammin g (Revised Jul y 2006)

Press the PROGRAM key to enter the Program Mode and then use the up/down arrow keys to select one of six programs. • • • • • •

Program Program Program Program Program Program

1 allows 2 allows 3 allows 4 allows 5 allows 6 allows

you to set/reset the duration of a test. you to select a test cycle. you to modify or create a test cycle. you to calibrate the temperature sensor. you to change the alarm volume. you to set an ethernet address to connect to a computer.

Press the ENTER key to move one level deeper into a program. Once inside each level, use the arrow keys to move around and to change parameters. Use the ENTER key to move to the next level and to save the changes to any program. Use the ESCAPE key to move back one level or to exit the program.

Sec 7.4 pg 1

Section 7: Controller Operation

7.4.1 P1: Set Test Durat io n (Revised Jul y 2006) Program 1 allows you to set the test time and also what should happen at the end of the test. You can also reset the elapsed test hours to zero after a test is finished.

1. Press the PROGRAM key to get into the Program Mode.

PROGRAM PROGRAM MODE MENU

2. Press the Up/Down arrows until the display says P1.

5

6

P1 SET TEST DURATION

ENTER

3. Press ENTER.

4. Press the Up and Down arrows to change the Test Time Set, which is the total number of hours you want to run the test. If you want to reset the elapsed hours, for example, to begin a new test, use the Left and Right arrow keys to move over to the elapsed hours and use the Up and Down arrows to change it.

5 6

TEST TIME SET = 1000; ELAPSED = 0000 HOURS

ENTER

5. Press the ENTER key to accept your choices.

6. Use the Up and Down arrows to choose the action the controller should take at the end of the test. Choices are: STOP, STOP+ALARM, ALARM, MESSAGE ONLY, or NONE

7. Press ENTER to accept your choice.

5

6

ACTION AT END OF TEST: STOP

ENTER

8. The controller gives you one last chance to change your mind. Press ENTER to save the changes you just made, or press ESCAPE to cancel the changes and move back one level in the program.

ENTER = SAVE CHANGES, ESCAPE = CANCEL

ENTER

Sec 7.4.1 pg 1

Section 7: Controller Operation

7.4.2 P2: Select Cycl e/Step to Run (Revis ed Ju ly 2006) Program 2 allows you to choose any of ten test cycles that have already been programmed (in program 3). Program 2 also allows you to choose which step in the test cycle to begin with and also the time into the step to begin with.

1. Press the PROGRAM key to get into the Program Mode.

PROGRAM PROGRAM MODE MENU

5

2. Press the up or down key until the display says P2.

6

P2 SELECT CYCLE/STEP TO RUN

ENTER

3. Press ENTER.

4. Press the up or down key until you find the desired test cycle.

5 6

RUN CYCLE A NAME = ASTM G154 CYCLE 1

ENTER

5. Press the ENTER.

6. Press the up or down key to find the step you want to begin with. Press the right or left key to scroll over to the time into 5 6 the step. Press the up or down key to set this to the desired time (usually this will be 0:00). A/STEP 1 UV 60ºC 0.89W/M2 0:00/8:00

7. Press ENTER.

ENTER

8. The controller gives you one last chance to change your mind. Press ENTER to save the changes you just made, or press ESCAPE to cancel the changes and move back one level in the program.

ENTER = SAVE CHANGES, ESCAPE = CANCEL

ENTER

Sec 7.4.2 pg 1

Section 7: Controller Operation

7.4.3 P3: Modif y or Create a Test Cycle ( Revised July 200 6) Program 3 allows you to modify an existing test cycle or create a new test cycle. A test cycle can contain up to 25 steps. Once a test cycle is modified or created it must be selected in Program 2 to run.

1. Press the PROGRAM key to get into the Program Mode.

PROGRAM PROGRAM MODE MENU

2. Press the up or down key until the display says P3.

5

6

P3 MODIFY OR CREATE CYCLE

ENTER

3. Press ENTER.

5 6

4. Press the up or down key until you find the desired test cycle. Press the left or right key to scroll over to the name of the test cycle. Press the up or down arrows to scroll through the alpha numeric characters to program the name.

RUN CYCLE A NAME = ASTM G154 CYCLE 1 5

6

ENTER

5. Press the ENTER. 6. Press the up or down key to find the step you want to program. Press the right or left key to scroll over to the function, temperature, irradiance, or time. Press the up or down key to set the desired value. The choices for function are: UV, condensation, spray (QUV/spray only), subcycle, and final step go to step 1. See the instructions on the following page for programming subcycles. The last step of the test cycle should be final step go to step 1. 7. Press ENTER.

5

6

A/STEP 1 UV 60ºC 0.89W/M2 8:00

ENTER

8. The controller gives you one last chance to change your mind. Press ENTER to save the changes you just made, or press ESCAPE to cancel the changes and move back one level in the program.

ENTER = SAVE CHANGES, ESCAPE = CANCEL

ENTER

Sec 7.4.3 pg 1

Section 7: Controller Operation

Subcycles: The subcycle function can be used to repeat a sequence of steps before advancing to another step. For example, let’s say you want to simulate intermittent light and rain during the day and dew at night. This could be simulated by programming alternating periods of UV and spray followed by one period of condensation. The program would look like this: J/STEP 1 J/STEP 2 J/STEP 3 J/STEP 4 J/STEP 5

SUBCYCLE STEP 2-3 REPEAT 3X UV 60ºC 0.89W/M2 3:55 SPRAY 0:05 CONDENSATION 50ºC 12:00 FINAL STEP GO TO STEP 1

The QUV will run the UV and spray steps three times before the condensation step. Multiple subcycles can be programmed in a test cycle. However, the controller will not allow one of the steps in a subcycle to be another subcycle.

Sec 7.4.3 pg 2

Section 7: Controller Operation

7.4.4 P4: Calib rate Panel Temperat ur e (Revi sed Ju ly 2006) Program 4 allows you to calibrate the black panel temperature sensor.

1. Press the PROGRAM key to get into the Program Mode.

PROGRAM PROGRAM MODE MENU

5

2. Press the up or down key until the display says P4.

6

P4 CALIBRATE PANEL TEMPERATURE

ENTER

3. Press ENTER.

IS REFERENCE THERMOMETER IN PLACE?

4. Press ENTER (refer to the calibration section for the actual calibration procedure).

ENTER

5. Press the up or down key until the displayed temperature matches the temperature of the reference thermometer.

5

6

REFERENCE TEMPERATURE = XX.Xº

6. Press ENTER.

ENTER

7. The controller gives you one last chance to change your mind. Press ENTER to save the changes you just made, or press ESCAPE to cancel the changes and move back one level in the program.

ENTER = SAVE CHANGES, ESCAPE = CANCEL

ENTER

Sec 7.4.4 pg 1

Section 7: Controller Operation

7.4.5 P5: Set Alarm Volum e (Revis ed Jul y 2006) Program 5 allows you to change the alarm volume.

1. Press the PROGRAM key to get into the Program Mode.

PROGRAM PROGRAM MODE MENU

5

2. Press the up or down key until the display says P5.

6

P5 SET ALARM VOLUME

ENTER

3. Press ENTER.

5

4. Press the up or down key to raise or lower the volume.

5. Press ENTER.

6

ALARM VOLUME = 10

ENTER

6. The controller gives you one last chance to change your mind. Press ENTER to save the changes you just made, or press ESCAPE to cancel the changes and move back one level in the program.

ENTER = SAVE CHANGES, ESCAPE = CANCEL

ENTER

Sec 7.4.5 pg 1

Section 7: Controller Operation

7.4.6 P6: Set Ethernet Address (Re vis ed July 20 06) Program 6 allows you to set an ethernet address so that the QUV can be connected to a computer. You may need to consult with your computer systems administrator for the proper ethernet address settings. See section 10 for additional instructions.

1. Press the PROGRAM key to get into the Program Mode.

PROGRAM PROGRAM MODE MENU

5

2. Press the up or down key until the display says P6.

6

P6 SET ETHERNET ADDRESS

ENTER

3. Press ENTER.

4. Press the up or down key until the display says P6.1. Press the left or right key to scroll over to the name of the test cycle. Press the up or down arrows to scroll through the alpha numeric characters to program the name.

5. Press the left or right key to scroll to P6.1. Press the up key to scroll to P6.2. Press the left or right key to scroll over to

5

6

P6.1 TESTER NAME = XXXXXXXXX

5

6

P6.2 USE DHCP = NO

NO. Press the up key to change to yes if necessary.

6. Press the left or right key to scroll to P6.2. Press the up key to scroll to P6.3. Press the left or right key to scroll over to the address. Press the up or down key to change.

7. Press the left or right key to scroll to P6.3. Press the up key to scroll to P6.4. Press the left or right key to scroll over to the subnet mask setting. Press the up or down key to change. 8. Press the left or right key to scroll to P6.4. Press the up key to scroll to P6.5. Press the left or right key to scroll over to the default gateway setting. Press the up or down key to change.

5

6

P6.3 IP ADDRESS = XXX.XXX.XXX.XXX

5

6

P6.4 SUBNET MASK = XXX.XXX.XXX.XXX

5

6

P6.5 DEFAULT GATEWAY = XXX.XXX.XXX.XXX

Sec 7.4.6 pg 1

Section 7: Controller Operation

9. Press the left or right key to scroll to P6.5. Press the up key to scroll to P6.6. Press the left or right key to scroll over to the destination port setting. Press the up or down key to change.

5. Press ENTER.

5

6

P6.6 DESTINATION PORT = XXXX

ENTER

6. The controller gives you one last chance to change your mind. Press ENTER to save the changes you just made, or press ESCAPE to cancel the changes and move back one level in the program.

ENTER = SAVE CHANGES, ESCAPE = CANCEL

ENTER

Sec 7.4.6 pg 2

Section 7: Controller Operation

QUV Programming Rev. 10 MAR 05 ENTER

ESCAPE

V-2061-L

Enter key accepts current se ction & moves one level deeper into program.

Escape key cancels current selection & moves back one level in program.

Up/Down arrows select program 1 , 2, or 3 and change test settings.

Left/Right a rrows scroll across display to select parameters shown in BOLD . Active parameter flashes.

PROGRAM

P1 SET TEST DURATION

ENT ER

DURATION SET =1000; ELAPSED = 0000 HOURS

ENTER

ACTION AT END OF TEST: STOP

ENTER

ENTER = SAVE CHANGES ESCAPE = CANCEL

ENTER

Choices are: STOP, ALARM, STOP+ALARM, MESSAGEONLY, NONE

P2 SELECT CYCL E/ STEP TO RUN

ENT ER

RUN CYCLE A NAME = ASTM G154 CYCLE 1

ENTER

A/STEP 1 UV 50°C 0.68W/M2 2:41/4:00

P3 MODIFY OR CREATE CYCLE

ENT ER

MODIFY CYCLE A NAME = ASTM G154 CYCLE 1

ENTER

A/STEP 1 UV 5 0°C 0.6 8W/M2 4:00

ENT ER

ENTER

ENTER = SAVE CHANGES ESCAPE = CANCEL

ENTER = SAVE CHANGES ESCAPE = CANCEL

ENTER

ENT ER

Choices for function re: a UV, COND, SPRAY*, SUBCYCLE, FINAL STEP - GO TO STEP 1 (*QUV/spray only)

P4 CALIBRATE PANEL TEMPERATURE

ENTER

IS REFERENCE THERMOMETER IN PLACE?

ENTER

CALIBRATE PANEL TEMPERATURE =XX.X°C

ENTER

P5 SET ALARM VOLUME

ENTER

ALARM VOLUME = 10

ENTER

ENTER =SAVE CHANGES ESCAPE = CANCEL

ENTER

P6 SET ETHERNET ADDRESS

ENTER

P6.1 TESTER NAME = XXX

P6.4 SUBNET MASK = XXX.XXX.XXX. XXX

P6.2 USE DHCP = NO

P6.5 DEFAULT GATEW AY = XXX.XXX.XXX.XXX

Sec 7.4.7 pg 1

ENTER = SAVE CHANGES ESCAPE = CANCEL

ENTER

P6.3 IP ADDRESS = XXX.XXX.XXX.XXX

P6.6 DESTINATION PORT = XXXX

ENTER

ENTER = SAVE CHANGES ESCAPE = CANCEL

ENTER

Section 7: Controller Operation

7.5

Diagnost ics (Revised Jul y 2006):

The diagnostic mode can be entered by pressing the “?” key. The diagnostic mode is used to find the following information, some of which may be useful for troubleshooting certain error messages. DIAG 1 DIAG 2 DIAG 3 DIAG 4 DIAG 5 DIAG 7 DIAG 8 DIAG 9 DIAG 10

LABORATORY TEMPERATURE = XXºC UV PROP=XX°C, INT=XX ON = XX% * COND PROP=XX°C, INT=XX, ON=XX% * WATER TEMPERATURE = XX°C CONTROLLER TEMPERATURE = XX°C VERSION X.XXX CHECKSUM=XXXX XXXX HOURS SINCE LAMP SERVICE JOULES/M2 = XXX,XXX,XXX XXXX HOURS SINCE UV SENSOR CAL

DIAG 11 UV% CH1=XXX CH2=XXX CH3=XXX CH4=XXX

Sec 7.5 pg 1

(* appears when air heater is on) (* appears when water heater is on)

(QUV/basic only) (QUV/se & QUV/spray only) (QUV/se & QUV/spray only) (QUV/se & QUV/spray only)

Section 8: Running a Test

8.

RUNNING A TEST

8.1 Selecting a Test Cycle (Revised J uly 2006) There are many standard test cycles written for the QUV by organizations such as ASTM, SAE, ISO, etc. Generally, it is best to use one of the standard cycles that’s already been developed. The standard test cycles pre-programmed in the QUV are shown in section 8.1.1. Occasionally, however, you may want to develop your own custom cycle for a particular application. Guidelines for choosing settings for custom cycles are given in Section 8.1.2. In addition to the test cycle, an important part of any test -maybe the most important - is the type of lamp to use. Refer to section 4.1 for a description of the various types of lamps and what type to use for a particular application. Make sure the correct lamp type is installed before starting a test. The lamp type is printed on the wall of the lamp near one of the ends. If you need to change lamps refer to section 11.3.

Sec 8.1 pg 1

Section 8: Running a Test

8.1.1 Standar d Test Cycl es (Revi sed Febru ary 2007) Shown below are the test cycles pre-programmed in the QUV. These can be selected by pressing the PROGRAM key and going to the P2 menu. The lamp type specified for each test method is also listed. Some cycles can only be run in certain QUV models, for example, cycle G contains a spray step so only the QUV/spray model can run this cycle. Cycle G on the other models will be blank. Cycl e A: ASTM G154 CYCLE 1 Lamp type: UVA-340 Models: basic, se, spray (irradiance is not programmed on QUV/basic model) 2 Step Function Irradiance (W/m ) Temperature (ºC) 1 UV 0.89 60 2 3

condensation Final step - Go to step 1

n/a

50

Cycl e B: ASTM G154 CYCLE 2 Lamp type: UVB-313 Models: basic, se, spray (irradiance is not programmed on QUV/basic model) 2 Step Function Irradiance (W/m ) Temperature (ºC) 1 UV 0.71 60 2 condensation n/a 50 3 Final step - Go to step 1

Time (hours:minutes) 8:00 4:00

Time (hours:minutes) 4:00 4:00

Cycl e C: SAE J2020 (also ASTM G154 CYCLE 3) Lamp type: QFS-40 (UVB-313 lamps can be used in QUV/se and QUV/spray models) Models: basic, se, spray (irradiance is not programmed on QUV/basic model) 2 Step Function Irradiance (W/m ) Temperature (ºC) Time (hours:minutes) 1 UV 0.49 70 8:00 2 condensation n/a 50 4:00 3 Final step - Go to step 1

Cycl e D: ASTM G154 CYCLE 4 Lamp type: UVA-340 Models: se, spray Step Function Irradiance (W/m 1 UV 1.55 2 condensation n/a 3 Final step - Go to step 1

2

)

Temperature (ºC) 70 50

Cycl e E: ASTM G154 CYCLE 5 Lamp type: UVB-313 Models: basic, se, spray (irradiance is not programmed on QUV/basic model) 2 Step Function Irradiance (W/m ) Temperature (ºC) 1 UV 0.62 80 2 condensation n/a 50 3 Final step - Go to step 1

Sec 8.1.1 pg 1

Time (hours:minutes) 8:00 4:00

Time (hours:minutes) 20:00 4:00

Section 8: Running a Test

Cycl e F: ASTM G154 CYCLE 6 Lamp type: UVA-340 Models: se, spray 2 Step Function Irradiance (W/m ) 1 UV 1.55 2 condensation n/a 3 Final step - Go to step 1

Cycl e G: ASTM G154 CYCLE 7 Lamp type: UVA-340 Models: spray 2 Step Function Irradiance (W/m ) 1 UV 1.55 2 spray n/a 3 condensation n/a 4 Final step - Go to step 1

Temperature (ºC) 60 50

Time (hours:minutes) 8:00 4:00

Temperature (ºC) 60 n/a 50

Time (hours:minutes) 8:00 0:15 3:45

Cycl e H: ISO 11507 Meth. A Lamp type: UVB-313, UVA-340, UVA-351 Models: basic, se, spray (irradiance is not programmed on QUV/basic model) 2 Step Function Irradiance (W/m ) Temperature (ºC) 1 UV 0.71 60 2 condensation n/a 50 3 Final step - Go to step 1

Cycl e I: EN 927-6 Lamp type: UVA-340 Models: spray 2 Step Function Irradiance (W/m ) 1 condensation n/a 2 Subcycle repeat steps 3-4 48x 3 UV 0.89 4 spray n/a 5 Final step - Go to step 1

Cycle J: Cool Whites Lamp type: Cool White Models: cw 4 Step Function Irradiance (x10 lux) 1 UV 0.60 2 Final step - Go to step 1

Temperature (ºC) 45 60 n/a

Time (hours:minutes) 4:00 4:00

Time (hours:minutes) 24:00 2:30 0:30

Temperature (ºC) 40

Time (hours:minutes) 24:00

Cycl e K: ISO 4892-3 Cycl e 1 Lamp type: UVA-340 Models: basic, se, spray (irradiance is not programmed on QUV/basic model) 2 Step Function Irradiance (W/m ) Temperature (ºC)

Time (hours:minutes)

1 2 3

UV condensation Final step - Go to step 1

0.76 n/a

Sec 8.1.1 pg 2

60 50

8:00 4:00

Section 8: Running a Test

Cycl e L: ISO 4892-3 Cycl e 2 Lamp type: UVA-340 Models: spray 2 Step Function Irradiance (W/m ) 1 UV 0.76 2 spray n/a 3 condensation n/a 4 Final step - Go to step 1

Cycl e M: Lamp type: Models:

Temperature (ºC) 60 n/a 50

Time (hours:minutes) 8:00 0:15 3:45

ISO 4892-3 Cycl e 6 UVB-313, QFS-40 basic, se, spray (QFS-40 lamps must be used in QUV/basic model and irradiance is not programmed) 2 Function Irradiance (W/m ) Temperature (ºC) Time (hours:minutes) Step 1 UV 0.48 70 8:00 2 condensation n/a 50 4:00 3 Final step - Go to step 1

Sec 8.1.1 pg 3

Section 8: Running a Test

8.1.2 Custo m Test Cycl es (Revised Jul y 2006) Custom test cycles can be programmed by pressing the PROGRAM key and then scrolling to the P3 menu. See section 7.4.3 for details on programming custom test cycles. Generally, a custom test cycle should be programmed in one of the blank test cycles (cycle J for models basic, se, and spray) rather than changing one of the pre-programmed test cycles. Following are some guidelines on setting an irradiance level and the moisture cycle. Irradiance Set Point Guidelines The irradiance can be set anywhere from very dim to very bright. As a guide, we recommend using either the normal or maximum set points shown in the table below. It may be possible to reach irradiance levels even higher than shown but these are not recommended because they may not always be possible to reach with other lamps, higher room temperatures, etc.

IRRADIANCE SET POINT Lamp Type

normal

UVA-340

0.68W/m2 @ 340 nm

maximum

UVA-351

0.87W/m2 @ 340 nm

UVB-313

0.67W/m2 @ 310 nm

QFS-40

0.48W/m2 @ 310 nm

Cool White

0.60 x10lux (6,000 lux)

1

1.55 W/m

2

@ 340 nm

2

1.55 W/m

2

@ 340 nm

3

1.23 W/m

2

@ 310 nm

4

0.86 W/m

2

@ 310 nm

4

2.00 x10

4

lux (20,000 lux)

1

0.68 W/m2 at 340 nm is the maximum irradiance of sunlight (CIE 85 table 4).

2

0.87 W/m2 at 340 nm is a typical irradiance of UVA-351 lamps in non-Solar Eye QUV’s

3

0.67 W/m2 at 310 nm is a typical irradiance of UVB-313 lamps in non-Solar Eye QUV’s

4

W/m2lamps at 310innm is the irradiance specified in SAE J2020 and is a typical irradiance of0.48 QFS-40 non-Solar Eye QUV’s

Factors To Consider When Choosing An Irradiance S et Point Acceler ation: The irradiance set point will obviously have a major effect on the rate of degradation of most materials. Maximum irradiance is recommended if you want the fastest results possible. It is especially useful for Quality Control applications and for durable materials where lower irradiance gives unacceptably long test times. Lamp Life: The irradiance set point effects lamp life. The higher the set point - the shorter the lamp life. Typically, lamps will maintain maximum irradiance for about 1,000 hours and normal irradiance for much longer. However, lamps should always be changed once a year, even if they are still maintaining the irradiance set point. This is because they get dirty due to the condensation and air flow through the chamber and, as a result, the spectral power distribution is affected. Correlation: The irradiance set point can have an effect on correlation. Theoretically, tests run at normal irradiance may correlate with natural outdoor exposures better than tests run at maximum irradiance (although we have not yet observed this in practice). This is because the maximum irradiance is much higher than natural sunlight. Tests run at normal irradiance will also correlate with tests run in non-solar eye QUV’s better than tests run at maximum irradiance. This is because the typical irradiance in non-solar eye QUV’s is about the same as the normal set points shown.

Sec 8.1.2 pg 1

Section 8: Running a Test

Black Panel Temperature Range: Although temperature is controlled by the air heater, the irradiance set point has an effect on the minimum and maximum temperature the QUV can achieve. This is because the lamps give off considerable heat, and the higher the irradiance the more heat they give off. Therefore, to achieve black panel temperatures above 75ºC, you may need to set a high irradiance. To achieve black panel temperatures below 55ºC, you may need to set a low irradiance.

Moisture Cycle Guidelines Condensation: This is a “traditional” QUV moisture cycle. All QUV models are capable of producing condensation. It typically utilizes several hours of hot (50°C) condensate to reproduce and accelerate outdoor moisture attack. Condensation temperature should be a minimum of 40°C to insure adequate heat transfer for condensation to occur. Because condensation requires the controller requires that at least a 2 hour condensation cycle be used. about an hour to fully develop, Spray and Condensation (QUV/spray models onl y): Thermal shock can be produced on test specimens by programming short periods of water spray. Usually only a few minutes of water spray is needed to rapidly cool the specimens. Because the sprays operate for only a few minutes, a relatively small amount of purified water is consumed. After the spray step, a condensation step usually follows for maximum acceleration of the damaging effects of moisture. Spray only (QUV /spray models on ly): Mechanical erosion and can be produced on test specimens by programming long periods of water spray. This has been found particularly useful for wood coatings. During spray steps, the specimen temperature is relatively cool because the specimens assume the same temperature as the spray water. This type of cycle uses large volumes of DI water.

Sec 8.1.2 pg 2

Section 8: Running a Test

8.2

Mount ing Test Specimens (Revised Jul y 2006)

The QUV can test any material in a wide variety of shapes and sizes. The most convenient shape and size is 3” x 6” (75mm x 150mm) flat panels up to ¼” (6mm) thick. Two of these panels will fit in each of the 24 (25 for QUV/basic) standard panel holders supplied with the QUV.

Flat panels up to 1/4" thick (6 mm) are fastened to the holders by snap-in rings. Simply push the ring snugly against the panel. For proper tension, keep the opening the ring in the center of the the holder, from the of edge, as shown. To remove ring,away pick up one side near the opening.

A small cylindrical stop keeps the test panels from falling down. Install the panel holders with this stop at the bottom.

To mount odd-shaped samples, first attach them to a 3 x 6" (75 x 150 mm) aluminum blank. Then mount the blank in the standard panel holder. Use water-resistant glue or fasteners made of corrosion-resistant metal (brass, aluminum or stainless steel -- not plated steel). To insure adequate cooling for condensation, odd shaped parts should be mounted to give reasonably good thermal contact with the blank panel.

Sec 8.2 pg 1

Section 8: Running a Test

For samples thicker than 1/4" (6mm), such as wood, use the optional Thick Panel Retainer springs. Part No. V133.

Extra large samples can be mounted to a large aluminum blank that is installed on the frame in place of several holders. The blank must be 12.75" high (325 mm). Make sure that the blanks are exactly as wide as the opening of the sample mounting area to avoid loss of water vapor during the condensation cycle.

Thin, flexible film samples are mounted by simply wrapping them around an aluminum blank.

Sec 8.2 pg 2

Section 8: Running a Test

Once the test specimens are mounted in the holders they can be placed in the QUV. Panel holders stack conveniently for carrying. Simply cradle them in your arm and stack, alternating flanges up and flanges down.

Panel holders are mounted by placing them in a slot on the QUV's frame. The extreme right and lefthand panel holders receive slightly less UV than the other holders because they are close to the ends of the lamps. Due to the reduced UV in these positions, ASTM G154 does not allow the use of these holders. We recommend that you do not use these holders unless absolutely necessary.

The rubber end seals are necessary to prevent the vapor from escaping from the chamber. Install the seals with the end marked “TOP” up.

Sec 8.2 pg 3

Section 8: Running a Test

The test panels actually make up the side wall of the test chamber. To properly seal the chamber, it’s important to have all the panel holders in place, and it’s important to have all holders filled with test specimens or blank panels. Missing panels will cause vapor loss, poor condensation, and loss of temperature control. The panel holders should be pushed together so that there are no gaps larger than 1/32 inch (1 mm).

Sec 8.2 pg 4

Section 8: Running a Test

8.3

Repos iti oni ng Test Specimens (Revised Jul y 2006)

In order to compensate for variability in UV and temperature uniformity, we recommend repositioning the test specimens at least once a week. This is best done by removing the two panel holders on the left end, sliding all the other holders to the left, and replacing the two that were removed on the right end. To prevent unnecessary UV exposure, make sure the UV lamps are off during specimen rotation.

Remove two panel holders on left end.

Slide all other panel holders to the left.

Replace two panel holders on right end.

Sec 8.3 pg 1

Section 9: Calibration

9.

CALIBRATION

9.1

UV Senso rs (QUV/se, QUV/spr ay, QUV/cw on ly ) (Revised Ju ly 2006)

The UV sensors require frequent calibration because they are located inside the harsh climate of the QUV. A “Time to Calibrate” message will appear every 500 hours of UV time. Calibration is done with the CR10 calibration radiometer.

Sec 9.1 pg 1

Section 9: Calibration

9.1.1 CR10 Cali brati on Radiometer (R evised Jul y 2006) The CR10 calibration radiometer was specially developed for the Solar Eye Irradiance Control system. It allows you to calibrate the system quickly and easily. Although it is a necessary accessory to the system, you can use a single radiometer to calibrate any number of QUV’s. The CR10 is designed to measure fluorescent UV lamps only. It should not be used to measure sunlight, xenon arc lamps or other visible light lamps. It has been calibrated to measure UV-A lamps at 340nm and UV-B lamps at 310nm in W/m2. The CR10/cw is designed to measure cool white fluorescent lamps in a QUV/cw only. It has been 4 4 calibrated to measure in the units of 10 lux. Therefore, if the CR10 reads 0.60 this is really 0.60 x10 lux or 6000 lux. The radiometer itself must be returned to Q-Lab periodically for re-calibration. This is to adjust for any changes that may occur over time. We recommend that it be re-calibrated be every year.

Sec 9.1.1 pg 1

Section 9: Calibration

9.1.2 Aut oCal Calib ratio n Proc edure (Patented) (Revis ed Apr il 2007) With the AutoCal feature, you can calibrate your Solar Eye system in seconds.

Warning: Make sure that all panel hold ers are in place and filled, so that the operator is not exposed to any UV light du ring calibration.

Note: On QUVs equipped with door interlocks, the lamps would normally turn off when the door is opened to calibrate the UV sensors, thus making calibration impossible. However, when the calibration cord is plugged into the controller, a special override circuit allows the lamps to remain on even if the door is open. Do not leave the CR10 plugged in when the CR10 is not in use.

1. Locate the four built-in Solar Eye sensors in the QUV’s sample mounting area. Two sensors are mounted on the front of the QUV and two are mounted on the back. You will find them on the black aluminum panels. The sensor “window” must be kept clean for accurate results. We suggest periodically cleaning it with alcohol and a clean soft cloth.

2. For the most accurate results, make sure the QUV is stable at the normal operating temperature before inserting the CR10 sensor. For example, if the QUV is normally run at a 70°C UV temperature, make sure it is at 70° before starting the calibration procedure.

3. Plug the CR10 connection cable into the radiometer and into the control panel. The radiometer gets its power from the controller.

4. Select the lamp type (i.e., UV-A or UV-B) by pushing the “Lamp Type” button on the radiometer. Be sure that the lamp type you have chosen is the same as the type of lamps used in the QUV. The radiometer will read “0.00” until a lamp type is chosen.

Sec 9.1.2 pg 1

Section 9: Calibration

5. Place the CR10 sensor into calibration port number 1. The display on the radiometer will show the actual irradiance at the sample plane.

6. Push and hold down the “Cal 1” button until the two lights next to the cal button flash and you hear an audible beep. This sends a signal to the controller telling it the actual irradiance. The controller automatically updates the calibration for that sensor. In a few seconds, the irradiance shown on the QUV and the irradiance shown on the CR10 should match the set point. If not, push the cal button again.

7. Repeat this process for each of the other three sensors. Make sure you push the cal button that corresponds to the port that the CR10 sensor is in.

Note: Make sure you push the cal button even if the irradiance shown on the CR10 is the same as that shown on the QUV. If you don’t push all four cal buttons, the time to calibrate message will not disappear and the time to calibrate timer will not be reset.

Sec 9.1.2 pg 2

Section 9: Calibration

9.2

Panel Temperatur e Senso r (Revis ed Jul y 2006)

All thermometers require occasional calibration to insure accuracy. To assure accurate temperature readings, calibrate the thermometer every six months in accordance with ASTM E-220. To calibrate: 1. Press the STOP button to suspend the test.

2. Locate the black sensor panel mounted in the front sample area of the QUV. 1

2

3. Unfasten the black sensor panel by loosening the thumbscrew at the top center.

1

4. Turn the sensor panel around to locate the temperature sensor housing. The housing is attached by two thumbscrews found on the reverse side of the panel. Loosen these screws, remove the housing and set it aside.

1

2

Housing

Sec 9.2 pg 1

Section 9: Calibration

5. Next, remove the clip located above the top thumbscrew. Pull the temperature sensor through the panel.

1

6. Place the QUV temperature sensor in an insulated cup (or thermos) of hot water along with a calibrated reference thermometer. The temperature of the water should be approximately the same as the highest temperature set point in the test cycle being run. Allow 10 minutes for the sensors to stabilize. Compare the readings. The water will be cooling during this process so be sure to read the two sensors at the same time. A large insulated cup will minimize this problem. If the QUV temperature sensor does not agree with the reference thermometer then the QUV temperature sensor should recalibrated.

7. To recalibrate, see section 7.4.4.

Sec 9.2 pg 2

Section 10: Data Logging

10.

DATA LOGGING (VIRTUAL STRIP CHART) (Revised Ju ly 2006)

The QUV can be connected to a computer to continuously record and store all test parameters during an exposure test. This is useful for documenting that all parameters were in tolerance throughout a test. The software to record and store the data and the installation instructions are available from Q-Lab. Contact the Q-Lab service/repair or sales department to obtain the software and instructions. Note: The computer must use the M icrosoft Window s XP operating system.

Sec 10 pg 1

Section 10: Data Logging

10.1

Connecti ng the QUV to a Compu ter (Revis ed Jul y 2006)

The QUV can be connected to a computer by plugging an Ethernet cable into the QUV. The other end of the cable can be connected to a computer in a number of ways. a) Directly to a computer.

b) To a hub to monitor multiple QUV’s.

Hub

c) To a local area network (LAN) to monitor one or more QUV’s on one or more computers.

Router

Sec 10.1 pg 1

Section 10: Data Logging

10.2

Viewing the Data on the Comput er (Revis ed Jul y 2006)

After the QUV is connected to a computer and the data logging software is installed, the computer can store all QUV operating parameters as long as the computer and QUV are both on. The data can be viewed at any time in either strip chart form or tabular form. This is an example of the data in strip chart form.

This is an example of the data in tabular form. The data can also be exported to a spreadsheet such as Microsoft Excel and manipulated or graphed as desired.

Contact Q-Lab for the software and detailed installation instructions if you would like to continuous record all QUV operating parameters.

Sec 10.2 pg 1

Section 11: Maintenance

11.

MAINTENANCE

11.1

Replace Lamp s (Revised Ju ly 2006)

QUV/se, QUV/spray, and QUV/cw: The Solar Eye Irradiance control in the QUV/se, QUV/spray, and QUV/cw automatically maintains the programmed irradiance. As a result, the lamps generally need to be changed only once a year. After one year the lamps should be replaced because they tend to get dirty from the condensation and air flow through the chamber. This dirt can change the spectral power distribution emitted from the lamps. With the Solar Eye Irradiance control, the only time the lamps need to be changed before one year is if they no longer reach set point. This should only happen if you are running a higher than normal irradiance set point. Lamps may only last about 1,000 hours if run at maximum set point but should last the full year if run at normal set point. An error message will appear when the irradiance falls 0.10 W/m2 below the set-point. If this happens, replace the pair of lamps that is low. It is not necessary to replace all the lamps. Always re-calibrate after changing lamps. QUV/basic: Like any lamps, the light output of fluorescent lamps decreases with use. During the first 100 hours of lamp's operation, there is a rapid decline in lamp output, followed by a more gradual decline over the remaining life. To compensate for this decline, the QUV/basic requires a simple rotation/replacement system. This system involves replacing the oldest lamp in each bank after every 400 hours of lamp operation. At that time the remaining six lamps are rotated as shown below. Thus, each bank will have lamps near the following ages: 0 hours, 400 hours, 800 hours, and 1200 hours. The irradiance that the test specimen receives is therefore an average of lamps at four different points on the age/output curve. The total output from the bank is an average of several lamps and is relatively stable. An interval of 400 hours of light operation works out to about 4 to 6 weeks, depending on the UV/Condensation cycle chosen. An error message will remind you every 400 hours to rotate lamps.

Sec 11.1 pg 1

Section 11: Maintenance

Replacing the UV lamps is as simple as changing ordinary fluorescent tubes. Begin by lifting up the doors, unscrew the sensor panel and hang it on the door ledge. Lift up the panel holders and place them on the door ledge.

Now remove the trapezoid-shaped outer cover and unplug the black lamp sockets on both end of the lamps. Hold the lamp and slide it to one side until it pulls out of the lamp gasket and repeat for the other end.

Occasionally very new lamps will flicker or spiral for the first few days of operation. Do not be alarmed, this does not effect their spectral power distribution or the overall light intensity.

Sec 11.1 pg 2

Section 11: Maintenance

11.2

Clean Water Pan -every 6 mon ths (Revis ed Jul y 2006)

Dirty water in the pan does not affect the test, because only pure vapor condenses on the test samples. However, the water should be cleaned whenever enough scum forms on the water’s surface to prevent evaporation, or when solids accumulate 1/8 inch (3mm) in the bottom. To clean the pan, first slide out the water pan cover. Most labs drain the pan, although some simply remove the scum with a wet/dry vacuum cleaner. It’s not necessary to remove all the scale from the bottom of the pan, since a thin layer doesn’t hurt and may even act as an extra protective coating. You will notice a magnesium anode in the water pan when you are cleaning out the pan. This provides cathodic protection to the pan’s iron substrate in case the glass lining on the pan chips. The anode is immersed in the water and electrically connected to the pan by a wire. If the glass lining chips, exposing the iron substrate, a galvanic cell will form with magnesium as the anode, iron as the cathode, and water the electrolyte. This cell iscorrosion in effect of anthe iron/magnesium battery generating an E.M.F. of about 1 volt. The voltage causes sacrificial magnesium and cathodic protection of the iron. Under these conditions, the iron cannot rust. The magnesium anode should be replaced whenever it corrodes completely away.

Sec 11.2 pg 1

Section 11: Maintenance

11.3

Check Spray Nozz les - every 3 mon ths (QUV/spr ay onl y) (Revised July 2006)

Over time, spray nozzles may become clogged and not spray properly. The spray nozzles can be inspected using the two glass panels supplied with every QUV/spray. Simply remove the panel holders from one side of the QUV and insert the glass panels in their place. Run a spray step and check to see that the entire surface of the glass panels are wet. If a portion of the glass panel is not wet, the spray nozzle in that area should be removed and cleaned.

A spray nozzle can be removed from the spray bar using a wrench. Once the nozzle is removed, it can be taken apart for cleaning with an air hose or small brush.

Sec 11.3 pg 1

Section 12: Troubleshooting and Repair

12.

TROUBLESHOOTING & REPAIR (Revi sed Ju ly 2006)

The QUV is designed so that virtually all repairs can be made by the user. Whenever it is necessary to replace any parts on your QUV, it is important that you use only parts that have been supplied or recommended by Q-Lab. Q-Lab accepts no responsibility for the consequences if the operator uses other parts.

Sec 12 pg 1

Section 12: Troubleshooting and Repair

12.1

Erro r Messages (Revised Februar y 2007)

Most problems will be accompanied by an error message that describes the problem. Many are intended to be informational only and do not indicate that there is something wrong with your tester. For example, the message “OUTER COVER IS OFF” appears every time that that an outer cover is removed. As soon as the cover is replaced, the message will disappear. Some messages indicate a true failure. For example, “M33 WATER PAN TOO HOT XX°C” will appear if the water pan runs out of water. The “XX°C” at the end of the message will show the temperature that the pan reached before the controller shut the test off. Contact the Q-Lab Technical Services Department for guidance in solving any problems at 440/835-8700 or fax your inquiries to 440/835-8738 .

Code

Message

Reason

M1

DOOR IS OPEN

Door is open

M2

OUTER COVER IS OFF

Outer Cover is off

M10

END OF TEST

M11

END OF TEST

M12

END OF TEST SHUTDOWN

M13

END OF TEST SHUTDOWN

M20

PANEL TEMPERATURE TOO HOT XX°C

M21

PANEL TEMPERATURE TOO COLD XX°C

Test completed (QUV continues to run with message only) Test completed (QUV continues to run with message and alarm) Test completed (QUV stops running without alarm) Test completed (QUV stops running with alarm) UV CYCLE: 1. Air Heater is not shutting off because the air heater relay is stuck closed. 2. Lab temperature is too hot. CONDENSATION CYCLE: 3. Water heater is not shutting off because the water heater relay is stuck closed. 4. Lab temperature is too hot. UV CYCLE: 1. Air Heater is not on because the air heater relay is stuck open. 2. Air heater is broken. 3. Lower blower is not on because the blower relay is stuck open. 4. Lower blower is not on because it is broken. 5. Lab temperature is too cold. CONDENSATION CYCLE: 6. Panel holders are missing which allows heat to escape. 7. Lower blower stays on because the blower/fan relay is stuck closed. 8. Water heater is not on because the

M22

UV TEMPERATURE FAULT XX°C

Sec 12.1 pg 1

water heater relay is stuck open. 9. Water heater is broken. 10. Lab temperature is too cold. Step time is too short.

Section 12: Troubleshooting and Repair

Code

Message

Reason

M23

Step time is too short.

M24

CONDENSATION TEMPERATURE FAULT XX°C PANEL TEMP RUNAWAY XX°C

M25

LAB TEMPERATURE AT ALARM XX °C

M30

REPLACE BATTERY

M33

Water supply is shut off.

M34

WATER PAN TOO HOT XX°C - MAY BE EMPTY CONTROLLER TOO HOT XX°C

M43

WATER SPRAY OFF: SHOULD BE ON

M44

WATER SPRAY ON: SHOULD BE OFF

M50

UV IRRADIANCE TOO HIGH

M51

UV IRRADIANCE TOO LOW

M52

BALLAST OR BALLAST RELAY FAULT

M53

BALLAST RELAY STUCK ON

1. Water supply is shut off. 2. Water filter is clogged. 3. Solenoid valve is stuck in the closed position. Check by restarting the spray cycle. If the solenoid is working, it will make a noise when it opens. Replace if necessary. 4. Spray relay is stuck in the open position. 5. Flow switch is stuck in the open position. 1. Solenoid valve is stuck open. 2. Spray relay is stuck closed. 3. Flow switch is stuck in the closed position. 1. Ballast is broken. 2. UV sensor is broken. 3. Irradiance set point is too low. 1. Rubber lamp socket is off or loose (see the figure below for tightening procedure). 2. Lamp is burned out. 3. Lamps are old. 4. UV sensor is broken. 5. Irradiance set point is too high. 1. Ballast is broken. 2. Ballast relay is stuck open. Ballast relay is stuck closed.

M54

RUN RELAY STUCK ON

Run relay is stuck closed.

M55

RELAY CHECK IN PROGRESS

M60

LAMP FAULT BALLAST 1

This message occurs when the controller is checking for bad relays. 1. Rubber lamp socket is off or loose (see the figure below for tightening

UV CYCLE: Air Heater is not shutting off because the air heater relay is stuck closed. CONDENSATION CYCLE: Water heater is not shutting off because the water heater relay is stuck closed. Lab temperature may be the cause of a chamber temperature fault. Battery voltage is low

Lab is too hot.

procedure). 2. Lamp is burned out. 3. Ballast is broken.

Sec 12.1 pg 2

Section 12: Troubleshooting and Repair

Code

Message

Reason

M61

LAMP FAULT BALLAST 2

M62

LAMP FAULT BALLAST 3

1. Rubber lamp socket is off or loose (see the figure below for tightening procedure). 2. Lamp is burned out. 3. Ballast is broken. 1. Rubber lamp socket is off or loose (see the figure below for tightening procedure). 2. Lamp is burned out. 3. Ballast is broken.

M63

LAMP FAULT BALLAST 4

M65

SERVICE LAMPS

M66

CALIBRATE UV SENSORS

M69

LAMPS ON - SHOULD BE OFF

1. Rubber lamp socket is off or loose (see the figure below for tightening procedure). 2. Lamp is burned out. 3. Ballast is broken. Time to change lamps (QUV/basic only). Occurs every 400 hours. Time to calibrate UV sensors (QUV/se & QUV/spray only). Occurs every 500 hours Ballast relay is stuck closed.

M70

HEATER ON - SHOULD BE OFF

Run relay and heater relay are stuck closed.

M80

FLASH MEMORY ERROR

M81

FLASH DATA CORRUPT

M82

RAM CORRUPTED, RAM RELOADED

Indicates a problem with the controller. Turn the QUV off and back on. If the problem persists, contact Q-Lab. Indicates a problem with the controller. Turn the QUV off and back on. If the problem persists, contact Q-Lab. Indicates a problem with the controller.

M92

PANEL TEMPERATURE SENSOR FAIL

Press the clear and enter buttons, if the problem persists, contact Q-Lab. Panel temperature sensor is broken

M93

WATER TEMPERATURE SENSOR FAIL

Water temperature sensor is broken

M94

LAB TEMPERATURE SENSOR FAIL

Lab temperature sensor is broken

To clear an error message, key in “CLEAR,” then “ENTER.” Repeat for each message you want to clear. Alarm and message will reoccur if fault persists.

Sec 12.1 pg 3

Section 12: Troubleshooting and Repair

12.2

Insuf fic ient Water Volum e (Revised Jul y 2006)

If the spray water is on but the volume is less than 7 litres per minute adjust the pressure regulator to maximum. If the volume is still less than 7 lpm check each of the following. • check the input water pressure and make sure that it is at least 25 psi. • check the nozzles to make sure they are not clogged (see section 11.3). • check the water filter to make sure it is clean. This can be done by first turning off the ball valve and pushing the red pressure release button on the top of the housing. Unscrew the bottom of the housing and remove the filter element. • replace the pressure regulator.

Sec 12.2 pg 1

Section 12: Troubleshooting and Repair

12.3

No Power (Revised Ju ly 2006)

No power at all. 1. Power switch is broken 2. Transformer is broken. Power Switch/Circuit Breaker Trips. 1. Power Switch is broken. 2. Air and water heater are on at the same time because the air or water heater relay is stuck closed. 3. Short circuit.

Sec 12.3 pg 1

Section 12: Troubleshooting and Repair

12.4

Loo se Lamp Sockets ( Revis ed Jul y 2006)

If the rubber socket is loose and falls off the lamp pins, squeeze the socket with a pair of pliers. This will tighten up the brass bushings inside the socket. Be sure the power is turned off before performing this procedure.

Sec 12.4 pg 1

Section 13: Replacement Parts

13.

REPLA CEMENT PARTS (Revi sed Ju ly 2006)

Whenever it is necessary to replace any parts on your QUV, it is important that you use only parts that have been supplied or recommended by Q-Lab. When ordering parts specify QUV model, serial number, Volts, Hz and Part Number.

Part Number 100V-120V V-131.0-X

200V-240V V-131.0-X

Descripti on

basic

se

3” Tensile Bar Adapter

•

•

spray •

cw •

•

•

•

V-130.12-X

V-130.12-X

3” end seal assy - right side

•

V-130.11-X V-131.3-X

V-130.11-X V-131.3-X

3” end seal assy – left side 3” Panel Holder w/rings

•

•

•

•

•

•

•

•

V-130.13-X

V-130.13-X

4” end seal assy - left side

•

•

•

•

V-130.14-X

V-130.14-X

4” end seal assy - right side

•

•

•

•

V-131.4-X

V-131.4-X

4” Panel Holder w/rings

•

•

•

•

V-130.16-X

V-130.16-X

6” end seal assy - right side

•

•

•

•

V-130.15-X

V-130.15-X

6” end seal assy- left side

•

•

•

•

V-131.6-X

V-131.6-X

6” Panel Holder w/rings

•

•

•

•

CV-256

CV-257

Air Heater

•

•

•

•

IC-1308-K

IC-1308-K

Ballast

•

•

•

V-2048

V-2048

Ballast

•

CV-153

CV-154

Blower

•

•

•

•

•

•

CR10

CR10

CR10/cw

CR10/cw

Calibration Radiometer Calibration Radiometer for QUV/cw

V-4049-K

V-4049-K

Control Board

•

•

•

•

V-4086

V-4086

Controller Battery

•

•

•

•

V-2077-X

V-2078-X

Controller Transformer

•

•

•

•

IC-1065

IC-1065

CR10 to Controller Cable

•

•

•

IC-1440

n/a

CR10 Wall Plug Adapter (9V)

•

•

•

V-4040-K

V-4040-K

Current Sensor Board

•

• •

V-2292-X

V-2292-X

Flow Switch

V-2285

V-2285

Flowmeter

V-2342

V-2342

Fuse, 0.5A

•

•

•

•

Interlock Switch

•

•

•

•

Keypad/Radiometer Interface Board

•

•

•

•

•

•

• •

IC-8999 V-4041-K

IC-8999 V-4041-K

•

IC-1500

IC-1505

Lamp Cooling Fan

•

V-106

V-106

Lamp Gasket

•

•

•

UVB-313 EL

UVB-313 EL

Lamp – UVB-313

•

•

•

QFS-40

QFS-40

•

•

•

UVA-340

UVA-340

Lamp – QFS-40 Lamp – UVA-340

•

•

•

Sec 13 pg 1

Section 13: Replacement Parts

Part Number 100V-120V

200V-240V

Descriptio n

basic

se

UVA-351

UVA-351

Lamp – UVA-351

•

•

spray •

cw

V-2089

V-2089

Lamp – cool white

•

V-4051-X

V-4051-X

LCD Display

•

•

•

•

V-131.3T-X

V-131.3T-X

Long Tensile Bar Holders

•

•

•

•

CV-207

CV-207

Magnesium Anode

•

•

•

•

V-2202

V-2200

Main Power Switch/Circuit Breaker

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

CV-234 IC-1520

n/a n/a

Power Cord Power Cord

n/a

CV-234.1

Power Cord

IC-1525

n/a

Power Cord Plug

HS-4650 F-8385

HS-4650

Pressure Regulator

F-8385

Relay

•

•

•

•

V-132-3

V-132-3

Retaining Ring for 3" Holders

•

•

•

•

V-132-4

V-132-4

Retaining Ring for 4" Holders

•

•

•

•

V-132-6

V-132-6

Retaining Ring for 6" Holders

•

•

•

•

V-155

V-155

Rubber Lamp Socket

•

•

•

•

V-141

V-141

Safety Goggles

•

•

•

•

HS-4680

HS-4680

Shut Off Valve

V-4059-K

V-4059-K

Software/Processor Board

•

•

• •

•

•

•

•

HS-4660

HS-4661

V-440-K

V-440-K

Space Saver Frame

V-4116

V-4116

Spray Nozzle

V-2156-X

V-2156-X

Temperature Sensor

•

•

•

•

V-133-K

V-133-K

Thick Panel Retainers, Set of 50

•

•

•

•

IC-1124-X

IC-1124-X

UV Sensor

•

•

•

CV-218

CV-218

Water Feed Assembly

•

•

•

•

F-8887-X

F-8887-X

Water Feed Filter Assembly

•

•

•

•

CV-218V

CV-218V

Water Feed Valve Only

•

•

•

•

V-2287-X

V-2287-X

Water Filter Assembly

V-2288

V-2288

Water Filter Element

CV-230 CV-210-K HS-4550-K

CV-231 CV-210-K HS-4550-K

Solenoid Valve •

•

• •

Water Heater

•

Water Pan

•

•

Sec 13 pg 2

•

•

•

Water Pan

•

•

• •

•

Section 14: Technical Support and Service

14.

TECHNICAL SUPPORT AND SERVICE (Revised Ju ly 2006)

Technical support and service is available over the telephone Monday through Friday from 8:30 AM to 5:00 PM, E.S.T. Call 440/835-8700 or Fax 440/835-8738.

Sec 14 pg 1

Section 15: Warranty Information

15.

WARRANTY INFORMATION (Revis ed Ju ly 2006)

One Year Limit ed Warranty. The QUV is guaranteed against defects in workmanship or materials for one year. Liability is limited to replacing or repairing any part or parts that are defective in materials or workmanship and are returned to our factory, shipping costs prepaid. Liability in all events is limited to the purchase price paid. Damage due to accident or abuse is not covered. Labor cost is not covered. Q-Lab makes no other warranties, including implied warranties of merchantability or fitness for a particular purpose, except as may be expressly provided by Q-Lab in writing. Q-Lab shall not be liable for any incidental, consequential, special, or contingent damages arising out of the sale or use of any product.

Copyright 1997 The QUV is made in the USA QUV, Solar Eye, UVA-340 and UVB-313 are trademarks of Q-Lab Corporation.

Sec 15 pg 1