Transformer a to Z Testing-Ready Catalogue

Transformer A to Z Testing

PD Test

Oil

Accuracy

Gas

Winding/ Re-Winding

Insulation

C+DF

Ratio

Winding Resistance

HV Test

MULTI-TEK INTERNATIONAL 103 – 105 Freston Road (Industrial Area), London W11 4BD,England Tel.: +44-(0)20-73133190 • Fax.:+44-(0)20-73133191 E-Mail: [email protected] J 2007/2008

(2008/2009) Item

Description

1

General Purpose Electrical Test Equipment for Transformers

1A

Multimeter type AVO310 with backlit LCD display, min/max store, analogue bar graph and standard accessories

1B

Multifunction Installation Tester type MFT1552 complete with standard accessories

1C

Power Clampmeter type VA6200 complete with Software

1D

Insulation Tester up to 1KV type MIT420 with Standard Accessories

1E

Insulation Tester up to 10KV type MIT1020/2 complete with all standard accessories.

2

Winding Resistance Testing

2A

Transformer Ohmmeter / Winding Resistance and Tap Changer Test Set type MTO210 complete with test lead set

2B

Digital Low Resistance Ohmmeter type DLRO10X (10A / rechargeable) including memory / download functions, with standard accessories

2C

5kV Impulse Winding Tester with Graphic Display type R8228-5

3

Transformer Turn Ratio Testing

3A

Fully Automatic Single and 3 Phase Transformer Turns Ratio Test Set type TTR300 Series compete will all standard accessories.

3B

Single Phase Hand Held Transformer Turns Ratio test set type TTR100 with standard accessories

3C

Hand Held Transformer Turns Ratio test set type TTR25 with standard accessories

(2008/2009) Item

Description

3D

Single-phase Hand-cranked Transformer Turns Ratio Test Set type 550005 complete with standard accessories

3E

Portable Digital Ratio meter type RTD/3

4

Capacitance + Dissipation Factor (Tan Delta) Test Sets

4A

Tangent Delta / C+DF Test Set type Delta2000 complete with 12kV HV supply, all standard accessories, RS232 interface and software, hot collar straps and tap connectors, operation voltage 230V AC, 50Hz

4B

10kV Automatic Power Factor Test Set with “PowerDB software” type Delta 3000 complete with all standard accessories.

5

CT / PT & Meter Testing

5A

Current Transformer Tester type MCTT-10 complete with all standard accessories

5B

Automatic CT Saturation, ratio, polarity, demagnetizing, burden and insulation test set type MCT1600.

5C

Portable current instrument transformer tester type PTT2.1 with standard accessories

5D

Three Phase Portable Meter Reference Standard type PWS2.3 PLUS class 0.1 for Meter Testing as well as CT / VT Testing complete with Test leads, Three 100 Amp Clamps, Scanning Head & Software

6

Computerised Power & Distribution Transformer Evaluation and Test System.

6A

Automatic Power Transformer Test Set Type ETP SYSTEM complete with software.

(2008/2009) Item 7

Description Transformer Frequency Response Analyzer:

7A

Transformer Frequency Response Analyzer type FRAX101 complete with all standard accessories

7B

Insulation Diagnostic Analyzer (Capacitance and Dissipation Factor/Water content) for Power Transformers type IDEX300 with all standard accessories and software (AG-19090)

8

PD Measurement for MV and HV. (Applicable measurement on Switchgear & Transformer)

to

latest

8A

PD Level Indicator type PD Surveyor complete with accessories

8B

Online & Offline PD Test Equipment for Testing of Medium Voltage Transformer consisting of: - Partial Discharge Test Hardware type OSM Longshot – WR Xi (4-ch PD Analyser) with HFCT Sensor, TEV Probes, Mini Pulse Generator, 36kV, 850pF High Voltage Coupling Capacitor, Variable Gain Amplifier, Test Cables - Hardware Package Includes Carry Case, Mini Keyboard, Optical Mouse & Mouse mat and 80GB USB Portable Hard Disk (for storage and transfer of PD Gold data files). - Partial Discharge Test Software type PD Gold + PD Reader (Data Analysis Software) + PD Waveform Capture & Analysis Software Option - AC High Voltage Low Discharge System for Offline Testing can be provided on request.

9 9A

Transformer Oil Dielectric Test Set Fully Automatic Oil Test Set type OTS100AF/2 with all standard accessories

(2008/2009) Item 10 10A

11 11A

12

12A

Description Transformer Oil Moisture Test Set Portable Moisture in Oil Test Set type KF-UNI complete with all standard accessories Transformer Oil Treatment Plant Transformer Oil treatment plant (3000L/H capacity) type THV3000 complete with standard accessories Note: Other Versions with different Capacities can be provided on request. Gases and Transformer Oil (Portable GC for detection of 11 Gases) Dissolved Gas Analyzer for transformers according to DIN/IEC567 type Mobil GC version2, consisting of : -GC with TCD, one channel column, automatic injector valve, Software for detection of 11 fault gases in 19” portable case - 2 Detector FID (Flame Ionisation detector) for more -accurate detection of hydro carbons - Methanizer (filled with catalytic powder) - 2. column ( Molesiev column 30m x 0,53mm inner diam.) for detection of O, N, H2 -column switch for autom. Measurement. Procedure -Autom. sample loop with dosing valve, fixed dosing volume -Internal carrier gas supply for approx. 80 h of operation -Internal burning gas supply for approx. 80 h of operation H2 -Partial vacuum degassing according to DIN/IEC 567 consists of: Oil syringe incl. access. 3 port valve gas volume syringe gas injection syringe rubber caps -Software and Expert system for autom. measurement procedure -Operating manual -Transport case

(2008/2009) Item

Description

12B

Dissolved Gas Analysis with Automatic Degassing unit According to IEC567 /ASTM 3612 type Top Toga GC.

13

Transformer Fault Indicator (Online Monitoring)

13A

Transformer monitoring unit type Hydrocal1002 complete with Hydrosoft software for data transfer and data administration

13B

Transformer monitoring unit type Hydrocal1003 as Hydrocal 1002 but with additional Water in oil/ moisture measurement.

14

High Voltage Lab for AC, DC and Impulse Testing can be provided on request.

15

Transformer Electrical Workshop A complete transformer repair workshop including Winding / Rewinding Coil Winding Machines, Ovens, Essential Tools and other Accessories can be provided on request.

1.General Purpose Electrical Test Equipment for Transformers

Item 1A

AVO300 Digital Multimeter

AVO300 Digial Multimeter ■

Designed for Electricians

■

Fully auto ranging

■

Large display characters

■

Separate battery and fuse cover

■

Data hold

■

Min/Max store

■

IEC 61010 compliant

■

Suitable for applications to CATIII 600 V

DESCRIPTION The AVO300 range of Megger digital multi-meters are tough compact instruments designed for the contracting electrician, but are also suitable for a wide range of applications and users.

Large clear display

Both instruments offer a range of measurement modes for AC and DC applications, resistance and current measurement.

Data HOLD

The AVO300 series multi-meters have tough rubber armoured cases offering the maximum amount of protection from the extreme use found in modern industrial environments. They draw on extensive experience of Megger engineers in designing safe reliable instruments for the electrical industry. Neither of the instruments are burdened with functions that never get used. This keeps the instruments simple to operate without the continued need to refer to the user manual. Auto-ranging

Every measurement range is fully auto-ranging. Simply switch on the instrument and start testing, leaving hands free for holding probes, or hanging onto ladders. Separate Battery/Fuse compartment

The battery and fuse compartment are accessed by a separate cover on the back. This allows both battery and fuses to be replaced without opening the main instrument body, and if the meter is sealed with a calibration seal, will not break the seal and invalidate the calibration. A problem found on most commonly available multi-meters.

The LCD display has large high contrast 31/2 digit display which are easily read from a distance. Additionally the AVO310 has a backlit LCD for use in poor lighting and a bar graph range showing the percentage of range used. This allows a displayed result to be held on the display until needed, rather than trying to remember a measurement. The result will be held until the HOLD button is pressed again, or until the unit switches off. MODE

When making current measurements the mode function allow the selection of AC or DC measurement. MAX/MIN (AVO310 only)

The Max/Min function on the AVO310 freezes the maximum or minimum measured result on the screen. The display does not have to be continually watched to capture a momentary increase or fall in circuit voltage, resistance or current. Voltage measurement

Both AC and DC voltage measurement is possible with the instrument auto ranging to match the voltage at the test probes. Voltage measurements up to 1000V are permitted without damage to the instrument. Current measurement

Three ranges are provided for current measurement of either AC or DC current from 0.1uA to 10A. Fused inputs protect both the user and the instrument in the case of excess current.

AVO300 Digital Multimeter Resistance, continuity and Diode testing

SPECIFICATIONS

Resistance can be measured directly on the ohms range from 0ohms up to 1.999Mohms. A continuity buzzer range is also available for checking low resistance between two points. The buzzer sounding if the resistance is less than 50ohms (35ohms on the AVO310).

Technical: Insulation: Class2, Double insulation.

Additionally a diode range exists for testing forward and reverse bias operation of transistors and diodes.

Overvoltage category: (AVO300/310) CATIII 600V / CATII1000V

Additional features

Display

A low battery indicator warns when batteries are low, and an auto-off function ensures no unnecessary battery wastage occurs if accidentally left on.

AVO300:

A built-in rear stand provides both a bench stand for comfortable use on the bench, as well as extending round 180° to act as a hanging bracket.

4000 counts LCD display, 20mm high

Product selection table

AVO300

AVO310

Technical Features

4000 counts LCD display, 25.4mm high AVO310:

Backlight AVO310 only Polarity Automatic, (-) negative polarity indication.

AC Voltage

1000 V

1000 V

DC Voltage

1000 V

1000 V

AC Current

10 A

10 A

"OL" mark indication.

DC Current

10 A

10 A

Low battery indication: A Battery symbol is displayed when the battery voltage drops below the operating level.

Resistance 0.1 Ω to 40 MΩ

Y

Y

Diode test

Y

Y

Fast continuity buzzer

Y

Y

Auto-ranging

Y

Y

Auto power off AVO300:

Data-hold

Y

Y

Meter automatically shuts down after approx. 15 minutes of inactivity.

Max/Min

-

Y

Backlight

-

Y

Tough Rubber Armoured case

Y

Y

Meter automatically shuts down after approx. 30 minutes of inactivity.

Separate fuse and battery cover

Y

Y

Operating environment

Integral Stand/Hanger

Y

Y

-10 ºC to 50 ºC (14 ºF to 122 ºF) at < 70 % relative humidity.

Probe holder

Y

Y

Storage temperature

Auto power down

Y

Y

-30 ºC to 60 ºC (-4 ºF to 140 ºF) at 200 mA @ 2 1 Test Lead null: Up to 9.99 1 (zero uses Test Button) Loop test ranges (to EN 61557-3) Line/Earth(Single phase) 25 A 0.01 1 - 9.99 1 (±5% ±0.03 1) 10.0 1 -89.9 1 (±5% ±0.5 1) 90 1 - 899 1 (±5% ±5 1 ) 900 1 - 3.00 k1 (±5% ±20 1) Supply: 55 V - 280 V 45 Hz

to 65 Hz

Phase to phase 25 A 0.01 1 -1 9.99 1 (±5% ±0.03 1) Supply: 55 V - 480 V 45Hz to 65Hz Low current Loop (NO TRIP) 15 mA 0.01 1 - 2.00 k1 (±5% ±0.03 ohms ± Noise Margin). Supply: 55 V - 270 V 45Hz to 65Hz

500 V 0.01 M1 - 299 M1

Prospective Shortcircuit Current PSC Prospective fault current = Nominal Voltage/Loop Resistance

1000 V 0.01 M1 - 499 M1

Accuracy is therefore derived from the loop test.

±2% ±2 digits up to 99 M1

1 A - 199 A

1 A resolution

250, 500 and 1 kV into 1 mA (BS7671, HD384 and IEC364)

0.02 kA - 1.99 kA

10 A resolution

Output voltage: +20% - 0% at rated load or less

2.0 kA - 19.9 kA

100 A resolution

MFT1500 Series Combined Insulation, Loop & RCD Tester RCD ranges (to EN-61557-6) Supply: 100 V - 270 V 45Hz to 65Hz Ranges: 1000 mA, 500 mA, 300 mA, 100 mA, 30 mA, 10 mA

Safety Double insulated to IEC61010-1-2001, Installation Category III, 300 V phase to earth, 500 V phase to phase. In addition Probe designed to meet IEC 61010-031-2002, Double insulated to Installation Category III, 300 V phase to earth, 500 V phase to phase.

Type: 1/2I - 1/2 times the selected RCD rated current. I - One times selected RCD rated current.

EMC In accordance with IEC 61326 including amendment No. 1

5I - Five times I RCD rated current. RAMP - A ramp test that displays actual trip current . DC sensitive - A DC test current at 1/2I, I and 5I. Current accuracy: No trip (1/2I) -8% to -2% Trip (I) and 5I +2% to +8% Trip time accuracy: ±1% ±1 ms Touch (Fault) voltage: 0 V to 100 V error ±5% to +15% ±0.5 V Selection: 25 V or 50 V

Environmental Operating range: -5 to +40ºC Operating humidity: 90% RH at 40ºC max Storage temperature: -25 to 65ºC Maximum altitude: 2000 m Dust and water protection: Instrument IP54, probe no rating Physical Dimensions:150 mm high x 85 mm wide x 235 mm deep (6 in. x 3.5 in. x 9.5 in.) Weight:1440 gms (3lb)

Power supply 8 x 1.5 V Alkaline cells type LR6

EN61557:

Fuses

Complies with the following parts of 61557, electrical safety in low voltage systems up to 1000 V a.c. and 1500 V d.c.Equipment for testing, measuring or monitoring of protective measures:-

Replaceable 500 mA (F) HBC 10 kA 500 V

Part 1- General requirements

Non-replaceable 7 A (SIBA 70-065-63) x 2

Part 2- Insulation resistance

Non-replaceable 1 A

Part 3- Loop resistance

Remote probe: MFT1502/2, MFT1552 and MFT1553 only

Part 4- Continuity

Torch feature: 5mm WHITE LED 1500 mcd

Part 6- Residual current devices (RCD)

Safety: CLASS 1 LED to IEC 60825:2001 Interchangeable tips

Part 10- Combined measuring equipment

Battery life: 2600 insulation tests with a duty cycle of 5 seconds on and 25 seconds off at 500 k1.

Battery: 1 x 9 V Alkaline cell type PP3 Fuse: Non-replaceable 7 A (SIBA 70-065-63)

Item (Qty) Order No. Multifunction tester standard MFT1501/2 Multifunction tester with illuminated switch probe MFT1502/2 Multifunction tester standard (European) MTF1501/2E Multifunction tester with illuminated switch probe (European) MFT1502/2E Multifunction tester with automatic RCD testing MFT1552 Multifunction tester with automatic Bluetooth downloading MFT1553 Accessories included with MFT1501 User guide on CD 6172-831 3 wire test lead Crocodile clips (red, black and green) Mains plug (BS1363) test lead

The Bluetooth word mark and logo are owned by the Bluetooth SIG. Inc. and any use of such marks by Megger is under licence.

Item (Qty) Order No. Additional accessories with MFT1502/MFT1552/MFT1553 As MFT1501/2 plus: Illuminated switched probe Instrument/document carry case Optional accessories for MFT1500 Series PowerSuite On-site (MFT1553 only) 6111-777 Replacement 3 wire test lead set 6220-796 Fused prod and clip set 6180-405 Standard switched probe 6220-836 Illuminated switched probe 6311-089 Test lead with Schuko plug 6231-593 Test lead with UK mains plug 6220-740 Test lead with USA mains plug 6220-643 Earth bond test lead set 6231-586 Instrument/document carry case 6420-143 Illuminated probe tip set 6121-562

Item 1C

Network mains analysis clamp

Total effective current – THD Harmonic current no.1 % harmonic no.1 / fundamental component

Peak current – THD - Harmonic spectrum

Oscillogram U and I Phase angle ϕ

Reactive, active apparent power cos ϕ consumption

ref. VA6200

Three-phase diagram V1 V2 V3

The screen on this clamp can be used either as a numeric display or as a graphical screen like an oscilloscope, or as a logging instrument. The clamp measures the true RMS voltage and current, apparent, reactive, active, balanced three-phase and single-phase power, cosj, peak factor, total distortion, power consumption and maximum power demand. In graphics mode, it displays and quantifies the first 50 harmonics of the signal (simultaneously as a percentage of the fundamental component and in volts, response in amperes), the form of the U and I signals, the single-phase and three-phase diagram. In logging mode, the clamp stores information in its memory. The sampling frequency and the start/stop cues can be programmed. Long acquisitions at high frequencies, with several simultaneous quantities, are possible by using an RS232 output to a PC and special software.

I1 I2 I3 ϕ

FUNCTIONS

RANGES

ACCURACY

IAC RMS

4.0 ~ 1500.0 A auto ranging

0.5% + 5 dgt

VAC RMS

4.0 ~ 600.0 V auto ranging

0.5% + 5 dgt

W - VA - VAR

1000.0 W - 10.000 - 100.00 - 1000.0kW 1% + 20 dgt

Energy Wh kWh

0 Wh ~ 999 999 kWh (resp VAh &VARh)

Crest factor CF

1.00 - 99,99

1% + 20dgt 5% + 30 dgt

Total harmonic distortion 0.0 ~ 1000.0 %

2% - 6% - 10%

Power factor cosϕ

0.000 - 1.000

0.04

phase angle

- 180° ~ +180°

0.1°

Harmonics of AC voltage Order 1 ~ 20th : 0.0 ~ 100.0% in V and in % Order 20th ~ 50th : 0,0 ~ 100.0%

2% 4%

Harmonics of AC current Order 1 ~ 20th : 0,0 ~ 100.0% in V and in % Order 20th ~ 50th : 0.0 ~ 100.0%

2% 4%

IAC and VAC transients OTHER FUNCTIONS Measurement of the maximum demand in kW and kVA Programmable threshold for transient capture (128 events) 32 to 256 points/cycle can be saved on the internal memory Memory size: 50,000 logs can be programmed based on a period of between 1 and 6000s. Real time output of: oscillograms, power, settings and harmonics Switches off automatically if not used

(as per range)

Capture of transient events (32000)

Optoisolated RS232 INTERFACE (8 bits, ASCII format) supplied as standard System software for curve charts and numeric results on PC. OTHER FEATURES Opening of clamping jaws: 6 55mm Dimensions/Weight: 270 x 100 x 45mm Weight 800g Supplied with probes and a carry case

Products

Guarantee 2 years

Item 1D

MIT400 CAT IV Industrial Insulation Testers

MIT400 CAT IV Industrial Insulation Testers

DESCRIPTION The new Megger MIT400 series insulation and continuity testers has been designed for electrical testing by the utilities, industrial, commercial and domestic electricians. The wide range of features also makes the MIT400 series ideal for the maintenance and service/repair engineer. They replace the well-established BM400 insulation tester range, given greater functionality with simplified operation, greater application range and increased safety. The range The range consists of five instruments:

■

CAT IV 600 V applications

■

TRMS & DC Voltage measurement

■

Insulation testing up to 1000 V and 200 G1

■

Continuity testing at 200 mA or 20 mA down to 0.01 1

■

Pass/Fail limit alarms

■

Combined Analogue and dual digital display

■

PI/DAR and Timer function

■

Test result storage (MIT420)

■

Bluetooth® wireless data transfer (MIT430)

■

Analogue arc - The display also features an analogue arc to replicate the response of a moving coil display.

■

PI and DAR - Polarisation Index (PI) and Dielectric Absorption Ratio (DAR) functions

■

200 G1 - Insulation testing from 20 G1 (MIT400) to 200 G1 (MIT420 and MIT430).

■

Silicone leads - High quality flexible silicone test leads are comfortable to use and prevent measurement errors on higher G1 ranges.

■

Test inhibit - prevents testing if voltages in excess of 50 V are detected when making insulation tests.

■

Insulation buzzer - The buzzer can be set to buzz if the insulation resistance is above a preset limit, set via the Setup menu.

MIT400 250 V, 500 V and 1000 V MIT410 50 V, 100 V, 250 V, 500 V and 1000 V + PI, DAR MIT420 50 V, 100 V, 250 V, 500 V & 1000 V + PI, DAR and result storage

CONTINUITY TESTING ■

Auto-test - Auto test on circuit contact enables real two handed operation without the need to press the test button.

■

200mA or 20mA - Either 200 mA or 20 mA continuity test currents are available. 20 mA test current will considerably increase battery life.

■

Lead null - Lead resistance compensation (NULL) operates up to 9 1 of resistance.

■

Buzzer - ON-OFF selected by simple push button.

■

Buzzer limit - Continuity buzzer limit alarm provides adjustment of the maximum resistance the continuity buzzer sounds. This is adjustable from 1 1 to 20 1 in 5 steps.

MIT430 50 V, 100 V, 250 V, 500 V & 1000 V + Bluetooth download MIT40X 10 V to 100 V in 1 V steps

INSULATION TESTING ■

Test voltages - 250 V to 1000 V or 50 V to 1000 V insulation test voltages available

■

Test Lock - Locks insulation test on continuously.

■

Test voltage display - The actual test voltage is displayed on the smaller digital readout, with the insulation result on the larger digital display.

MIT400 Series Industrial Insulation Testers ■

k1 range extends resistance measurement to 1 M1.

DISPLAY The display offers a combination of analogue arc and a dual digital readout: Analogue arc: ■

Full display width analogue arc.

■

Patented arc display shows essential charge and discharge characteristics not visible on a digital display.

■

Single pointer “needle” response is similar to a moving coil meter.

■

Logarithmic display for better low insulation value measurements.

■

NOTE: The receiving PC needs to have Bluetooth capability or a USB port fitted a Bluetooth receiver. Class II (10m) is acceptable.

SAFETY Designed to be exceptionally safe to use, fast detecting circuitry prevents damage to the instruments if accidentally connected to live circuits or across phases. Specifically, all instruments: ■

Meet the international requirements of IEC1010-2 and EN61557.

■

Live circuit detection inhibits insulation testing on circuits above 50 V.

■

Large main digital readout for good visibility of all main measurement results

Live circuit detection and test inhibit on continuity measurements.

■

Default display of live circuit voltage on all ranges.

Second digital display for additional data such as:

■

Detection and inhibit functions even if the protection fuse has failed.

■

Suitable for use on CAT IV applications and supply voltages to 600 V.

Dual digital display: ■

transmitter being enabled when the Download mode is selected on the instrument.

Insulation test voltage. Insulation leakage current. Supply frequency (when measuring volts). Test mode eg. PI, DAR or TI (Timed mode).

MIT40X - VARIABLE INSULATION VOLTAGE TESTER. The MIT40X provides a unique solution for awkward insulation voltage measurement applications. The MIT40X has a variable insulation test voltage from 10 V to 100 V in 1 V steps, selectable in the “Set-Up” menu. Once selected this can only be changed by re-configuring in the Setup menu. Typical applications include: ■

Commercial avionics

■

Military land, marine and air communications

■

Manufacturing/production line goods

■

Electrostatic measurement

■

Component testing

■

Battery powered traction and lifting equipment

STORAGE & DOWNLOADING RESULTS MIT420 The MIT420 is capable of saving test results for recall to the screen. A simple storage structure allows for a test number and screen results to be recalled individually. MIT430 The MIT430 supports both test result storage and downloading. Test results can be stored in the instrument and subsequently downloaded to a computer with the Megger download manager software. Data transfer is by Bluetooth, with the MIT485 Bluetooth

600 V CAT IV All MIT400 instruments are designed to meet the safety requirements for use on CAT IV 600 V.

APPLICATIONS (A) Electrical installations testing: The MIT400 includes all the features required for electricians and engineers working in a range of industries. Available features are selected to make testing easy and fast in a range of situations. Typical industries include: Electrical supply companies Large and small scale electrical installation Periodic inspection and testing Cable testing (B) Service, repair and maintenance: The MIT410 and MIT420 add additional features required for engineers working on more demanding applications. Functions such as PI and DAR, capacitance measurement and higher insulation range increase the suitability for applications such as: Manufacturing/production testing Panel building Railway and other transportation Motor testing Cable inspection/quality control Street lighting maintenance Avionics ground testing and maintenance Military applications

MIT400 Series Industrial Insulation Testers

All quoted accuracies are at +20°C.

Accuracy: Open circuit voltage: Short circuit current:

Insulation Nominal test voltages MIT400 250 V, 500 V, 1000 V MIT410, 420,430 50 V, 100 V, 250 V, 500 V, 1000 V MIT40X 10 V to 100 V variable (1 V increments)

Voltage range 0 to 600 V d.c. ±2% ±2 digits 10 mV to 600 V TRMS sinusoidal (40 to 400 Hz) ±2% ±2 digits 0 to 1000 V on Analogue scale Unspecified input level 0 - 10 mV (40 to 400 Hz)

Insulation resistance range MIT400 20 G1 MIT410 100 G1 MIT420, 430 200 G1 MIT40X 200 G1

For non-sinusoidal waveforms additional specification apply: ±3% ±2 digits 101 mV to 600 V TRMS and ±8% ±2 digits 10 mV to 100 mV TRMS

SPECIFICATION

Range Full Scale Accuracy 1000 volts ±3% ±2 digits ±0.2% per G1 500 volts. ±3% ±2 digits ±0.4% per G1 250 volts. ±3% ±2 digits ±0.8% per G1 100 volts. ±3% ±2 digits ±2.0% per G1 50 volts. ±3% ±2 digits ±4.0% per G1 10 volts ±3% ±2 digits ±2.0% per 100 M1 Analogue range:

Default Voltmeter:

Operates at >25 V a.c. or d.c. on any range except OFF

Frequency:

40-450 Hz (40 Hz - 99,9 Hz) ±0.5% ±1 digit (100 Hz to 450 Hz)

Capacitance measurement MIT420, MIT430

1 G1 full scale

Short Circuit Current: Terminal voltage:

2 mA +0% -50% -0% +20% ±1 V

Test Current on load: 1 mA at min. pass value of insulation specified in BS7671, HD384 and IEC364, 2 mA max. EN61557 Operating range:

0,10 M1 to 1,00 G1

Leakage Current:

10% ±3 digits

Voltage display:

3% ±3 digits ±0.5% of rated voltage

Polarisation Index (PI):

10 min / 1minute ratio

Dielectric Absorption Ratio (DAR): 60 sec / 30 sec ratio Notes: (1) All ranges measure from 0,00 M1 upwards. (2) Above specifications only apply when high quality silicone leads are being used. Continuity Measurement: Accuracy: Open circuit voltage: Test current:

Zero offset at probe tips: Lead resistance zeroing: Buzzer:

Resistance Measurement:

±3% ±2 digits 5 V ±1 V 20 µA ± 5 µA

Measurement range: Accuracy:

Distance by capacitance: MIT420, MIT430 Arithmetic conversion from capacitance measurement on Default capacitance measurement: 50nF/m Capacitance range:

40 nF/m to 60 nF/m

Result storage Capacity: Download: Bluetooth Class: Range:

>1000 test results Bluetooth wireless Class II up to 10 m

Power Supply: 5 x 1,5 V cells type IEC LR6 (AA, MN1500, HP7, AM3 R6HP) Alkaline NiMH rechargeable cells may be used. Battery life: 2200 insulation tests with duty cycle of 5 sec ON /55 sec OFF @ 1000 V into 1 M1 Dimensions Instrument:

0,01 1 to 99,9 1 (0 to 100 1 on analogue scale) ±3% ±2 digits (0 to 100 1) 5 V ±1 V 200 mA (–0 mA +20 mA) (0.01 1 to 9.99 1) 20mA (±1 mA ) (10.0 1 to 99.9 1) 0,10 1 typical Up to 9,00 1 Variable limit 1 1, 2 1, 5 1, 10 1, 20 1

0,01 k1 to 1000 k1 (0 to 1 M1 on analogue scale)

100 pF to 10 µF ± 5.0% ±2 digits

220 x 92 x 50 mm (8.66 in. x 3.63 in. x 1.97 in.)

Instrument + case: 456 x 178 x 89 mm (18 in. x 7 in. x 3.5 in.) Weight Instrument only: 590 gms, 775 gms with boot (20.73 oz. (27.22 oz.) Instrument plus case: 1.75kg (3.86 lb) Fuse Use only a 500 mA (FF) 1000 V 32 x 6 mm ceramic fuse of high breaking capacity HBC 50 kA minimum. Glass fuses MUST NOT be fitted. Safety Protection The instruments meet EN 61010-1 (1995) to 600 V phase to earth, Category IV. Refer to safety warnings supplied.

MIT400 CATIV Industrial Insulation Testers E.M.C. In accordance with IEC 61326 including amendment No.1 Temperature effects Temperature coefficient: