Sabic Thickness Monitoring Training Rev 2 - 07-Sep-2011

TM Corrosion Analysis Thickness Monitoring – User 1 

CHAPTER 1 ‐ INTRODUCTION TO THICKNESS MONITORING  1.1  1.2  1.3  1.4  1.5 

2 

CHAPTER 2 ‐ THICKNESS MEASUREMENT LOCATIONS AND MEASUREMENTS  2.1  2.2  2.3  2.4  2.5  2.6  2.7  2.8  2.9  2.10  2.11  2.12 

3 

WHAT IS MERIDIUM THICKNESS MONITORING?  MERIDIUM THICKNESS MONITORING  DATALOGGERS  MINIMUM THICKNESS CALCULATOR  ACCESSING MERIDIUM 

CREATING TML GROUP (CORROSION GROUPS)  SETTING ANALYSIS PREFERENCES  THE TMLS AND MEASUREMENT FORM  USING THE TMLS AND MEASUREMENT FORM  ADDING THE INITIAL MEASUREMENTS FOR EXISTING TMLS  ADDING MEASUREMENTS FOR EXISTING TMLS  ACCESSING ONLINE HELP TOPICS TO TM TMLS/MEASUREMENTS PAGE  TM COLOR‐CODING  ACCESSING ONLINE HELP TOPICS PERTAINING TO COLOR‐CODING  THE MEASUREMENT DATA ENTRY FORM  USING THE MEASUREMENT DATA ENTRY FORM  ADDING A NEW TML AND MEASUREMENT 

CHAPTER 3 – USING DATALOGGERS  3.1  DATA COLLECTION DEVICES  3.2  TO SEND TMLS TO A DATALOGGER  3.3  TO RECEIVE MEASUREMENTS FROM A DATALOGGER 

4 

CHAPTER 4 ‐ TM CORROSION ANALYSIS  4.1  4.2  4.3  4.4  4.5  4.6 

UPDATING CORROSION ANALYSIS SETTINGS  VIEWING THE UT ANALYSIS SECTION  VIEWING THE UT ANALYSIS PLOT  TASK LISTS  USING TASK LISTS  ARCHIVING CORROSION ANALYSIS RESULTS 

©Copyright Meridium, Inc. 1993-2011. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Sept. 7, 2011

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TM Corrosion Analysis

Version

Date

Author

Description

0

8/30/2007 M. Gurley

Initial Document

1

5/12/2008 M. Gurley / Ramachandran K.

General Edits based on class observations

2

9/05/2011 Daniel Rodas / Fabio Perillo

Added TML Groups, Analysis Preferences and General Review after version upgrade from 321 to 342

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 1

TM Corrosion Analysis

1

Chapter 1 - Introduction to Thickness Monitoring 1.1 What is Meridium Thickness Monitoring?

Meridium Thickness Monitoring is used to document, manage, and analyze data that is associated with the physical plant equipment. Inspection data management is a critical component to understanding the current condition of plant equipment. An accurate understanding of current equipment condition is critical to analyzing the reliability and future availability of equipment. Meridium Thickness Monitoring allows you to define TMLs Groups and then collect measurements for those TMLs in the context of various maintenance events. It provides functionality to collect and manage equipment inspection data in a format that can be easily analyzed by the Meridium analytical tools.

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Page 2

TM Corrosion Analysis 1.2 Meridium Thickness Monitoring From a high level standpoint, TM has four main functions: • Manages TMLs Group and thickness measurement data for fixed equipment • Calculates Short and Long Term Corrosion Rates • Calculates Next Inspection and Projected T-Min Dates • Interfaces with data collection devices

1.3 Dataloggers Meridium Thickness Monitoring supports handheld data recorders manufactured by Krautkramer Branson and Panametrics. TMLs can be easily uploaded from the Meridium database to a datalogger. In turn, measurements can be easily downloaded from a datalogger to the Meridium database.

1.4 Minimum Thickness Calculator The Minimum Thickness (T-Min) Calculator is designed to automatically calculate the minimum thickness for certain type components. The T-Min value is used to determine a component’s Corrosion Rate, Remaining Life and Next Inspection Date. The T-Min Calculator is available for Piping, Pressure Vessels, and Tanks. It is compliant with industry accepted standards, ANSI B31 (Piping), API 653 (Tanks), ASME Section VIII, NBIC NB23, API 510 (Pressure Vessels). Using the T-Min Calculator, corrosion rates are determined using both standard and customizable formulas. Calculations are based on Long Term, Short Term, or Least Squares weighting methods. Calculation results reveal the Next Inspection Date and the Projected T-Min Date, indicating when TMLs should be inspected. Thickness Monitoring supports the automatic notification of work requests based on userdefined thresholds, so that measurements and readings trigger notifications of needed work to the appropriate personnel.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 3

TM Corrosion Analysis 1.5 Accessing Meridium 1)

Choose All Programs > Meridium APM Applications > APM Meridium from the Start menu.

2)

Type MIADMIN for User ID and Password.

3)

Click the Show Advanced Options link and choose a datasource, as directed by your instructor.

4)

Click the Login link.

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Page 4

TM Corrosion Analysis

2

Chapter 2 - Thickness Measurement Locations and Measurements 2.1 Creating TML Group (Corrosion Groups)

1)

Using the Search button from the menu bar search for and find D-101 pressure vessel.

2)

Select the D-101 ~ LP Glycol System, Lean Glycol Separator (RBI) in the record explorer.

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Page 5

TM Corrosion Analysis 3)

Click on TML Group from Associated Pages menu and then select Create TML Group.

4)

Enter the following values to create the TML Group Shell:

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Page 6

TM Corrosion Analysis 5)

Repeat Step 3 to Create TML Group. Enter the following values to create the TML Group Head:

2.2 Setting Analysis Preferences 1)

Click in Go To and then select Strategy Execution → Thickness Monitoring.

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Page 7

TM Corrosion Analysis 2)

Click on TMLs/Measurements link.

3)

Search for D-101 pressure vessel.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 8

TM Corrosion Analysis 4)

Select the D-101 ~ LP Glycol System, Lean Glycol Separator (RBI) in the record explorer.

5)

Click on Analysis Summary link from Navigation pane.

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Page 9

TM Corrosion Analysis 6)

Click on Ok button on No Settings Found window.

7)

Click on Analysis Settings link in the Analysis Tasks menu.

8)

Select UT and click on Ok button.

Definition of Analyses Type displayed: o UT – Display Ultrasonic Thickness Datapoints o RT – Display Radiographic Thickness Datapoints o TML - Display Thickness Measurement Location Datapoints

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Page 10

TM Corrosion Analysis 9)

On Asset Analysis Settings window take the default settings except for the Default Inspection Interval, change the value to 1825 (days).

10) Click on Create Settings button and then click Ok button.

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Page 11

TM Corrosion Analysis 11) Click the All box to spread the settings to TML Groups and then click

Finish button.

12) Click on Ok button twice.

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Page 12

TM Corrosion Analysis 2.3 The TMLs and Measurement Form There are several ways to create TML’s. In the following lesson, you will use the TMLs and Measurement method, the most efficient one for creating multiple TML’s. The TMLs and Measurement form is used to create multiple TML’s for a given Asset. When you use this form to create TML’s, you will have the option to enter Base, Near and Last (Previous) thickness measurements and dates. Keep in mind that you must input any measurement data for a new TML before saving it, or you will need to use a different form to enter this data.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 13

TM Corrosion Analysis 2.4 Using the TMLs and Measurement Form 1)

Click in Go To and then select Strategy Execution → Thickness Monitoring.

2)

Click on TMLs/Measurements link.

3)

Search for D-101 pressure vessel.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 14

TM Corrosion Analysis 4)

Select the D-101 ~ LP Glycol System, Lean Glycol Separator (RBI) in the record explorer.

5)

The Thickness Monitoring (TM) module displays the TMLs and Measurements for D-101 screen. Click on Shell TML Group, since there are no TML’s currently associated with the Shell TML Group, the datasheet is blank. Click on Add a new TML with default values icon from the TMLs grid.

6)

The new TML form is displayed.

DO NOT CLICK SAVE AT THIS TIME ©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 15

TM Corrosion Analysis

7)

Enter the following TMLs ID to create three TML’s on the Shell TML Group:

DO NOT CLICK SAVE AT THIS TIME

9)

Minimum Thickness Value

Scroll right to locate the following fields and enter the Minimum Thickness Value shown. Press the Tab key to move from cell to cell.

TML #

8)

D-101-SH-001

10.1

D-101-SH-002

10.1

D-101-SH-003

10.1

Save the new TML’s.

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Page 16

TM Corrosion Analysis 10) Click on Head TML Group, since there are no TML’s currently associated

with the Head TML Group, the datasheet is blank. Click on Add a new TML with default values icon from the TMLs grid.

11) The new TML form is displayed.

12) Enter the following TML ID to create one TML on the Head TML Group.

TML #

Minimum Thickness Value

Click Ok and then scroll right to locate the following fields and enter the Minimum Thickness Value shown:

D-101-HD-001

10.1

13) Save the new TML.

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Page 17

TM Corrosion Analysis 2.5 Adding the Initial Measurements for Existing TMLs 1)

Continuing from the previous lesson, note that has four existing TMLs.

2)

Select D-101-SH-001 TML on TMLs grid and then click Initial Measurement Data Entry from the Navigation list.

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Page 18

TM Corrosion Analysis 3)

The new Initial Measurements form for D-101 is displayed.

4)

Above the grid, change the Measurement Taken Date to 05/21/1997 and set the Temperature” to “30” degrees Celsius.

5)

With D-101-SH-001 selected click on Readings row.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 19

TM Corrosion Analysis 6)

The Readings form for D-101-SH-001 is displayed. Enter 15.875 in value field and then click Ok.

7)

With D-101-SH-002 selected click on Readings row.

8)

The Readings form for D-101-SH-002 is displayed. Enter 15.875 in value field and then click Ok.

9)

Repeat Steps 7 to 8 for D-101-SH-003 and D-101-HD-001.

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Page 20

TM Corrosion Analysis 10) The Initial Measurements form for D-101 is displayed completed.

11) Click Save and Analyze from Measurement Tasks Lists, the message

show box below is displayed informing 4 Measurements saved successfully.

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Page 21

TM Corrosion Analysis 2.6 Adding Measurements for Existing TMLs 1)

Continuing from the previous lesson, click on TMLs and Measurements from Navigation list.

2)

Select D-101-SH-001 TML on TMLs grid.

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Page 22

TM Corrosion Analysis 3)

Click the Add a new Measurement with default values icon from the Measurements grid.

4)

The New Measurement dialog is displayed and the current date is autopopulated by default.

5)

Enter 15.265 on Readings field for Measurement Value.

6)

Tab to the Measurement Taken Date field and notice that the date is automatically selected.

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Page 23

TM Corrosion Analysis 7)

Enter 5 for the month and press the right arrow key. The day is automatically selected. Enter 21 for the day and press the right arrow key. The year is automatically selected. Enter 2002 and click OK.

In the following steps, you will add some new measurements for the currently selected TML based on some measurements that were documented on paper several years ago. 8)

Keep Going with D-101-SH-001 TML selected on TMLs grid.

9)

Click the Add a new Measurement with default values icon from the Measurements grid.

10) The New Measurement dialog is displayed and the current date is auto-

populated by default.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 24

TM Corrosion Analysis 11) Enter the following Readings and Measurement Taken Date Values

shown and then click OK.

12) Hover the cursor over the icon in the top left corner of the window, to

display the Task Menus, and then click Save and Analyze from the TM Tasks menu.

Note: If you’d like, click the Auto Hide icon to display or hide the Task Menus in the left pane. 13) The new Measurements record for D-101-SH-001 are listed chronologically

since, by default, the Measurements grid is sorted by Measurement Taken Date, ascending.

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Page 25

TM Corrosion Analysis In the following steps, you will add some new measurements for all TML which you have created.

14) Select D-101-SH-002 TML on TMLs grid. 15) Click the Add a new Measurement with default values icon from the

Measurements grid.

16) The New Measurement dialog is displayed and the current date is auto-

populated by default.

17) Enter the following Readings and Measurement Taken Date Values

shown and then click OK.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 26

TM Corrosion Analysis 18) Repeat Steps 14 to 16 and enter the following Readings and

Measurement Taken Date Values shown and then click OK.

19) Hover the cursor over the icon in the top left corner of the window, to

display the Task Menus, and then click Save and Analyze from the TM Tasks menu.

20) The 3 Measurements for D-101-SH-002 are displayed on Measurements

grid.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 27

TM Corrosion Analysis 21) Select D-101-SH-003 TML on TMLs grid. 22) Click the Add a new Measurement with default values icon from the

Measurements grid.

23) The New Measurement dialog is displayed and the current date is auto-

populated by default.

24) Enter the following Readings and Measurement Taken Date Values

shown:

25) Repeat Steps 21 to 23 and enter the following Readings and

Measurement Taken Date Values shown and then click OK.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 28

TM Corrosion Analysis 26) Hover the cursor over the icon in the top left corner of the window, to

display the Task Menus, and then click Save and Analyze from the TM Tasks menu.

27) Select D-101-HD-001 TML on TMLs grid. 28) Click the Add a new Measurement with default values icon from the

Measurements grid.

29) The New Measurement dialog is displayed and the current date is auto-

populated by default.

30) Enter the following Readings and Measurement Taken Date Values

shown:

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 29

TM Corrosion Analysis 31) Repeat Steps 27 to 29 and enter the following Readings and

Measurement Taken Date Values shown and then click OK.

32) Hover the cursor over the icon in the top left corner of the window, to

display the Task Menus, and then click Save and Analyze from the TM Tasks menu.

33) Note that all Measurements ID was auto-generated for the new

Measurement based on the Measurement Value and Measurement Taken Date.

34) Select D-101-SH-001 TML on TMLs grid.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 30

TM Corrosion Analysis 2.7 Accessing Online Help Topics to TM TMLs/Measurements Page 1)

To access definitions of field properties, click Help from the Common Tasks list.

2)

Meridium Client Online Help is displayed and an Overview of the TM TMLs/Measurements Page is displayed.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 31

TM Corrosion Analysis 3)

Read the overview and click the properties of each Thickness Measurement record hyperlink.

4)

Information regarding Properties of Thickness Measurement Records is displayed. Scroll down to review the information.

5)

After reviewing the information, close Meridium Client Online Help.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 32

TM Corrosion Analysis

2.8 TM Color-Coding Color-coding is used to flag TMLs and Measurements that may require attention. Colors are used to represent the following conditions: • Below T-Min • Overdue Inspection or Retirement Date • High Loss • Growth Default color-coding preferences may be used or the TM Administrator may customize them. Only the TM Administrator may customize these preferences, but any user may refer to Online Help topics pertaining to the default preferences. Following are the customized Color-Coding Preferences that have been set in your training database:

TMLs IDs are color-coded, as follows: • • • •

Blue = Growth Magenta = High loss Yellow = Overdue inspection or replacement Red = Below minimum thickness

The TM Administrator may also change the High Loss percentage value, which defines what percentage of loss, from one measurement to the next, will be considered High Loss.

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Page 33

TM Corrosion Analysis 2.9 Accessing Online Help Topics Pertaining to Color-Coding 1)

Choose Help >Meridium APM Framework Help from the menu bar.

2)

Meridium APM Framework Help is displayed. Click the Search tab, if necessary.

3)

Enter TM Color Coding for search text and click List Topics.

4)

Sixteen related topics are listed.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 34

TM Corrosion Analysis 5)

Resize the left pane and its columns, so that you can read the topic titles.

6)

To view a topic, select it in the left pane and click Display to view the topic in the right pane.

7)

Take a few minutes to explore the information pertaining to Color-Coding Preferences.

8)

Close Meridium Client Help.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 35

TM Corrosion Analysis 2.10

The Measurement Data Entry Form

If you have collected and documented a large number of measurement readings, you can input them into the Measurement Data Entry form, using the bulk data entry method. The fields available via the Measurement Data Entry form differ from those available for measurements in the TMLs/Measurements dialog. When making bulk entries, you can quickly input data into a grid that provides a row for each of the asset’s TMLs. If the asset consists of subcomponents, then its TMLs are grouped for each TML Group. The measurement grid is auto-populated with current information for the asset, and the enabled fields can be edited. Entering Bulk Measurements View below the Inspection Information section of the Measurement Data Entry form.

The following fields are auto-populated with historical data for each datapoint in the Measurements grid. This information serves as a reference for the user who is entering new measurements: • • • • • •

TML ID Last Measurement Value (Millimeters) Last Measurement Date Base Measurement Date Base Measurement Value (Millimeters) Minimum Thickness (Millimeters)

As the user types a Measurement Value (Millimeters) for each of the TMLs, the Measurement Date Taken value is auto-populated, based on the corresponding value in the Inspection Information section.

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Page 36

TM Corrosion Analysis 2.11

Using the Measurement Data Entry Form

1)

Click the Measurement Data Entry link from the Navigation menu.

2)

The Measurement Data Entry for D-101 form is displayed.

3)

Notice two fields in the Inspection Information section have been autopopulated based on the current date and user.

4)

Scroll right in the Measurements grid and note that the following historical values have been auto-populated for each of the TMLs: •

TML ID: A unique identifier for each of the selected asset’s datapoints

•

Last Measurement Value (Millimeters): The last measurement entered for this TML.

•

Last Measurement Date: The date of the last measurement entered for this TML

•

Base Measurement Date: The date of the first measurement entered for this TML.

•

Base Measurement Value (Millimeters): The date of the first measurement entered for this TML. This value may be Actual or Nominal.

•

Minimum Thickness (Millimeters): Current minimum thickness (T-Min) calculations

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Page 37

TM Corrosion Analysis •

Measurement Value (Millimeters): The measurement that was taken at the TML and is now being entered into the system. This is a required field.

•

Measurement Taken Date: The date of the measurement that was taken at the TML and is now being entered into the system. This field is auto-populated, based on the Measurement Date value in the Inspection Information section.

5)

Above the grid set the Temperature” to “30” degrees Celsius.

6)

Scroll left and click in the Measurement Value field for TML D-101-HD-001.

7)

Type 12.9 and press the down-arrow key.

8)

Note the cursor moves down to the next row and the Measurement Taken Date field is populated with the current date.

9)

Follow the same procedure to enter the following values:

10) Click the Save and Analyse link in the Measurement Tasks menu. 11) When prompted that the measurements have been saved, click OK.

Note: You will use the Measurement Data Entry utility to enter multiple TML’s and measurements at the same time.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 38

TM Corrosion Analysis 2.12

Adding a New TML and Measurement

1)

Click the TMLs and Measurements link from the Navigation menu.

2)

The Thickness Monitoring (TM) module displays the TMLs and Measurements for D-101 screen. Click on Shell TML Group and then click on Add a new TML with default values icon from the TMLs grid.

3)

Type D-101-SH-004 for TML ID, set TML Analysis Type to UT and then click OK.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 39

TM Corrosion Analysis 4)

The new TML D-101-SH-004 is displayed in the TML grid, enter 10.10 for Minimum Thickness and then click Save and Analyse from TM Tasks menu.

5)

Click Initial Measurement Data Entry from the Navigation list.

6)

The new Initial Measurements form for D-101 is displayed.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 40

TM Corrosion Analysis 7)

Above the grid, change the Measurement Taken Date to 05/21/1997 and set the Temperature” to “30” degrees Celsius.

8)

With D-101-SH-004 selected click on Readings row.

9)

The Readings form for D-101-SH-004 is displayed. Enter 15.875 in value field and then click Ok.

9)

The Initial Measurements form for D-101 is displayed. Click Save and Analyze from Measurement Tasks Lists, the message show box below is displayed informing 1 Measurements saved successfully.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 41

TM Corrosion Analysis 11) Click on TMLs and Measurements from Navigation list.

12) Select D-101-SH-004 TML on TMLs grid.

13) Click the Add a new Measurement with default values icon from the

Measurements grid.

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Page 42

TM Corrosion Analysis 13) The New Measurement dialog is displayed and the current date is auto-

populated by default.

15) Enter 12.7 on Readings field for Measurement Value, use the currently

date and click OK.

15) The new Measurement is displayed. Click Save and Analyses from TM

Tasks menu.

©Copyright Meridium, Inc. 2004-2007. All rights reserved. Confidential and proprietary information of Meridium, Inc. Published Oct. 7, 2007

Page 43

TM Corrosion Analysis

3

Chapter 3 – Using Dataloggers 3.1 Data Collection Devices

Meridium Thickness Monitoring enables direct communication between supported data collection devices and your Meridium database. This is done by creating a device mapping, which maps the data that is to be sent to and received from the data collection device. Which data collection devices are currently supported? The following devices are currently supported: • Krautkramer DMS • Krautkramer DMS2 • Panametrics 26DL+ • Panametrics 36DL+ • Panametrics 37DL+ The Fluke DPC will be supported in an upcoming release.

How do dataloggers interface with the Meridium database? Technicians complete the following steps to collect and save thickness measurements: • Connect the datalogger to the appropriate COM port of the PC • Upload data regarding selected TML to the datalogger • Use datalogger to collect measurements for the selected TMLs • Connect the datalogger to the appropriate COM port of the PC • Download measurement data to the PC • Review measurement data for accuracy and save it to the Meridium database • Corrosion Analysis is performed and results are updated

Note: At this point, if you are going to use an actual datalogger in this lesson, then connect it to the appropriate COM port of your PC. If a datalogger is unavailable, your instructor will demonstrate the lessons that follow.

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Page 44

TM Corrosion Analysis Scenario: You are going to use a Krautkramer-Branson DMS2 datalogger to record measurements for Piping Circuit 19-001-001. Assuming you have connected your datalogger to the appropriate COM port of your PC, you are ready to upload TML information from the Meridium database to the datalogger.

3.2 To send TMLS to a datalogger 1)

Click Thickness Monitoring in the Site Map.

2)

Click Datalogger on the Thickness Monitoring Functions screen.

3)

The Select a Device and Properties dialog box is displayed.

Note: The TM Administrator must create a To query and From query to map fields for each datalogger model used by your company.

4)

Select DMS2 for Device ID. The appropriate Data Transfer Direction option is selected, based on your selection.

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Page 45

TM Corrosion Analysis 5)

Click the OK button.

6)

You are prompted to select an Asset ID. Select Piping Circuit 19-001-001 from the menu and click OK.

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Page 46

TM Corrosion Analysis 7)

A list form of the selected Asset TMLs is displayed.

Note: The TM Administrator may design “To” and “From” queries that will support the transmission of data for multiple assets. 8)

Note that you could clear the Send? check box for any TML to prevent it from being sent to the datalogger, but in this case do not.

9)

Note that the current Port is displayed in the Device Tasks menu.

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TM Corrosion Analysis 10) Click the Port link from the Device Tasks menu and note that you could

select another port if necessary. In this case, do not.

11) If you are actually connected to a DSM2 datalogger, click the Send Data link

from the Device Tasks menu. If you are not connected to a DSM2 datalogger, click the Back button and do not save changes.

Note: You will receive an error message if you attempt to send data when not properly connected to a datalogger. Scenario: You have recorded measurements in the field using the DMS2 datalogger. You have returned to the office and connected the datalogger to the appropriate COM port. You are now ready to download the Measurements from the datalogger to the Meridium database. Note: At this point, if you are going to use an actual datalogger in this lesson, then connect it to the appropriate COM port of your PC. If a datalogger is unavailable, your instructor will demonstrate the lessons that follow.

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TM Corrosion Analysis 3.3 To receive Measurements from a datalogger 1)

Access the Thickness Monitoring screen and click Datalogger.

2)

The Select a Device and Properties dialog box is displayed. Select From DMS2 for Device ID, and click OK.

3)

Assuming you are connected to the DMS2 datalogger that you used to record measurements, click the Receive Data link from the Device Tasks menu.

Note: If you are not connected to the DSM2 datalogger, your instructor will demonstrate from this point.

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TM Corrosion Analysis

4

Chapter 4 - TM Corrosion Analysis 4.1 Updating Corrosion Analysis Settings

1)

Click in Go To and then select Strategy Execution → Thickness Monitoring.

2)

Click on Corrosion Analysis Summary link.

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TM Corrosion Analysis 3)

Search for D-101 pressure vessel.

4)

Select the D-101 ~ LP Glycol System, Lean Glycol Separator (RBI) in the record explorer.

5)

Click on Analysis Settings link from Analysis Tasks menu.

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TM Corrosion Analysis 6)

Select UT for Analysis Type, and click OK.

7)

Verify or enter the following UT Settings, and click Update Settings.

8)

On the resulting screen, click OK.

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TM Corrosion Analysis 9)

Click the All box to spread the settings to TML Groups and then click Finish button.

10) When prompted that settings have been successfully updated, click OK.

11) The Corrosion Analysis Summary for D-101 is displayed.

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TM Corrosion Analysis 4.2 Viewing the UT Analysis Section 1)

Continuing from the previous lesson, examine the values listed in the UT Analysis section.

•

•

• •

•

•

Controlling Corrosion Rate – The current Corrosion Rate for the TML, by virtue of being the greatest of the three calculated Corrosion Rates: Short Term, Long Term, and Least Squares Corrosion Rate. If Corrosion Rates cannot be calculated, then they will be set to the Minimum Corrosion Rate, as defined in the TML Analysis Settings. Scheduled Next Inspection Date – This value is set to the Interval Next Inspection Date, the Factor Remaining Life Date, the Projected T-Min Date, or nothing, depending upon the Projected T-Min Date value and how the Asset Analysis Settings have been configured. Projected T-Min Date – The date on which a TML will reach Minimum Thickness, calculated based upon the Current Corrosion Rate and the current T-Min value. Estimated Remaining Life From Today – How long the Asset will be in service beyond today, based on the current date and the Remaining Life that was calculated for the Last Measurement Date. This calculated value is provided for reference purposes and is not stored in the database. Maximum Historical Corrosion Rate – The highest Corrosion Rate that has been recorded for a TML, over its life. With respect to an Asset, the Maximum Historical Corrosion Rate is the highest Maximum Historical Corrosion Rate for all the TMLs that are linked to it. TMLs Below T-Min –A list of any TML records that have a linked Thickness Measurement record with a Measurement Value that is less than the Minimum Thickness value listed on the TML record.

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TM Corrosion Analysis 2)

Note that the Based on links indicate which TML determined the Controlling Corrosion Rate, the Scheduled Next Inspection Date, and the Projected T-Min Date. Click the Based on link for the Controlling Corrosion Rate.

3)

The TML Corrosion Analysis Details are displayed for D-101-SH-002.

4)

Click Back to return to the Corrosion Analysis Summary for D-101

5)

The Corrosion Analysis Summary for D-101 is displayed once again.

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TM Corrosion Analysis 6)

Click the Formulas link from TM Tasks menu.

7)

The Formulas window lists the specific calculations that were used for the currently selected TML. These calculations are dynamic.

8)

Click OK to close the Formulas window.

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TM Corrosion Analysis 4.3 Viewing the UT Analysis Plot 1)

Click on Plots link from Analysis Tasks menu.

2)

The Asset Analysis Plot is displayed. The Corrosion Rates for the TMLs Groups are plotted. Double-click the bar corresponding to D-101-Head.

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TM Corrosion Analysis 3)

The Corrosion Rates for the Head TML Group is plotted. Double-click on the bar corresponding to D-101-HD-001.

4)

The TML Analysis Plot for D-101-HD-001 is displayed. Note that thickness over time is plotted for the selected TML.

5)

Return to the Corrosion Analysis Summary for D-101.

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TM Corrosion Analysis 4.4 Task Lists Task Lists provide a means to launch various tasks from categorized, collapsible lists. Task Lists are context-sensitive, so different Task Lists and tasks will be available at any given time. The most widely available Task Lists are shown below. Analysis Tasks Pick Another Asset

Pick another asset and view its corrosion analysis summary

Analysis Settings

View analysis settings for the asset

Archive Corrosion Analyses

Archive corrosion analyses for the asset

Review Archived Corrosion Analysis

Choose from list of archived corrosion analyses for the asset

Exclude TMLs

Exclude the selected thickness measurement location from the corrosion analyses of the asset

Plots

Display plots for the analysis

View Tasks

View any tasks set up in Strategy Manager

Reset MHCR

Reset the Maximum Historical Corrosion Rate

Formulas

Display formulas used by the T-Min Calculator

Common Tasks Print (Disabled)

Print the displayed corrosion analysis

Send To

Send analysis summary to a home page, email recipient or the desktop (i.e. create a shortcut)

Documents

Display, create or edit the reference documents that are associated with the selected corrosion analyses

Help

Display the help topic for corrosion analyses

Pick Another Asset

Pick another asset and view its corrosion analysis summary

Renew TMLs

Renew and Add New Measurements for the asset

Audit Information

Display the audit information for the asset

View Tasks

View tasks settings for the asset

Analysis Settings

View analysis settings for the asset

Formulas

Display formulas used by the T-Min Calculator

Move TMLs

Move TML to another asset

TM Tasks

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TM Corrosion Analysis 4.5 Using Task Lists 1)

Continuing from the previous lesson, scroll down to view all Task Lists. Click the arrow button on the title bar of the Analysis Tasks list.

2)

The Analysis Tasks list is collapsed. Click the arrow button once again, to expand the Analysis Tasks list.

3)

Note that when you hover the cursor over an item, its entire title is displayed.

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TM Corrosion Analysis When you archive a Corrosion Analysis you capture, in effect, a snapshot of current analysis results and settings. The archived information provides an historical record for inspection purposes.

4.6 Archiving Corrosion Analysis Results 1)

Click the Archive Corrosion Analysis link in the Analysis Tasks list.

2)

Click the Yes button to proceed.

3)

When prompted that the analysis has been successfully archived, click OK.

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TM Corrosion Analysis 4)

Click the Review Archived Analyses link in the Analysis Tasks list.

5)

The Archived Corrosion Analyses Summary is displayed.

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