Vanguard TRM-20_40 User Manual

TRM-20 and TRM-40TRANSFORMER RESISTANCE METERS USER’S MANUAL Vanguard Instruments Company, Inc.1520 S. Hellman Ave. Ontario, California

TRM-20 AND TRM-40 USER’S MANUAL REV 1 6 2.0 PRE-TEST SETUP 2.1 Operating Voltages The TRM’s operating voltages are 90-240 Vac, 50/60 Hz. 2.2 LCD Scr

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 7 2.5 Replacing the Thermal Printer Paper The roll of thermal paper is housed inside a dispenser underne

TRM-20 AND TRM-40 USER’S MANUAL REV 1 8 3.0 OPERATING PROCEDURES 3.1 Configuring the LTCA Software for use with the TRM The TRM can be used with a PC

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 9 f. Launch the LTCA application and then click on the “Settings” icon. The following window will be dis

TRM-20 AND TRM-40 USER’S MANUAL REV 1 10 3.2 Connecting the TRM to a PC via Bluetooth The TRM can also be connected wirelessly to a PC using Bluetoot

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 11 The TRM will be listed as “TRM S/N” where S/N is the device’s serial number. Click on the icon for the

TRM-20 AND TRM-40 USER’S MANUAL REV 1 12 f. The following confirmation screen will be displayed: Click on the “Finish” button. g. The TRM-20 will n

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 13 For Windows 7: a. Make sure the TRM is turned on. Then double click on the Bluetooth system tray icon

TRM-20 AND TRM-40 USER’S MANUAL REV 1 14 c. All nearby Bluetooth devices will be listed: The TRM will be listed as “TRM S/N” where S/N is the device

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 15 e. The following window will be displayed: Type the word “default” (without the quotes and in all lo

TRM-20 AND TRM-40 USER’S MANUAL REV 1 i SAFETY SUMMARY NOTICE This manual applies to both the TRM-20 and TRM-40 transformer resistance meters. The ope

TRM-20 AND TRM-40 USER’S MANUAL REV 1 16 g. The TRM will now be listed under “Bluetooth Devices”: Right click on the TRM-20 icon and select “Propert

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 17 3.3 Typical Connections to a Load Tap Changer (LTC) Figure 2. Typical Connections to a Load Tap Chan

TRM-20 AND TRM-40 USER’S MANUAL REV 1 18 Figure 4. Typical TRM Connections Diagram for 2 Windings

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 19 3.5 General Procedures The main steps for using the TRM are outlined below: a. Ground the TRM to the

TRM-20 AND TRM-40 USER’S MANUAL REV 1 20 3.6 Entering Test Record Header Information You can enter the test record header information before performi

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 21 d. The following screen will be displayed: Type the station name using the alpha-numeric keypad and

TRM-20 AND TRM-40 USER’S MANUAL REV 1 22 g. The following screen will be displayed: Type the model information using the alpha-numeric keypad and th

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 23 j. The following screen will be displayed: Type the operator’s name using the alpha-numeric keypad a

TRM-20 AND TRM-40 USER’S MANUAL REV 1 24 3.7 Setting the Date and Time To set the date and time: a. Start from the “START-UP” menu: Press the [2] k

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 25 3.8 Setting the Interface Language Follow the steps below to set the interface language (English, Spa

REV 1 TRM-20 AND TRM-40 USER’S MANUAL ii TABLE OF CONTENTS CONVENTIONS USED IN THIS DOCUMENT ...

TRM-20 AND TRM-40 USER’S MANUAL REV 1 26 3.9 Performing a Resistance Test a. Start from the “START-UP” menu: Press the [1] key (RUN TEST). b. The

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 27 e. The following menu will be displayed: Select the test current by pressing the corresponding numer

TRM-20 AND TRM-40 USER’S MANUAL REV 1 28 You can increase the Tk value by 0.5°C increments by pressing the [PAPER ∧ Contrast] key. You can decrease t

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 29 Press the [ENTER] key to confirm the reference temperature setting. NOTE The TRM will calculate the e

TRM-20 AND TRM-40 USER’S MANUAL REV 1 30 After the TRM finishes its internal calibration, the following screen will be displayed: This is only an inf

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 31 Once the data is saved, the following screen will be displayed: Press the [STOP] key to stop running

TRM-20 AND TRM-40 USER’S MANUAL REV 1 32 n. The following screen will be displayed: 1. YES Press the [1] key (YES) to save the reading. One of the

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 33 2. NO If you do not wish to save the reading, press the [2] key (NO) and continue to step o. o. The

TRM-20 AND TRM-40 USER’S MANUAL REV 1 34 q. The following screen will be displayed: NOTE The record number is automatically assigned and incremente

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 35 3.10 Performing a Load Tap Changer / Voltage Regulator Resistance Test The Load Tap Changer/Voltage R

TRM-20 AND TRM-40 USER’S MANUAL REV 1 iii LIST OF FIGURES Figure 1. TRM-20/40 Controls and Indicators ...

TRM-20 AND TRM-40 USER’S MANUAL REV 1 36 d. The following screen will be displayed Type the number of taps the LTC or Voltage Regulator has using th

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 37 g. The following screen will be displayed: Select the test current by pressing the corresponding num

TRM-20 AND TRM-40 USER’S MANUAL REV 1 38 You can increase the Tk value by 0.5°C increments by pressing the [PAPER ∧ Contrast] key. You can decrease t

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 39 Press the [ENTER] key to confirm the reference temperature setting. NOTE The TRM will calculate the e

TRM-20 AND TRM-40 USER’S MANUAL REV 1 40 After the TRM finishes its internal calibration, the following screen will be displayed: n. The TRM determi

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 41 p. After saving the readings, the following screen will be displayed: Set the LTC or Voltage Regulat

TRM-20 AND TRM-40 USER’S MANUAL REV 1 42 Press any key to return to the “START-UP” menu. 2. NO If you do not wish to save the test record, press the

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 43 Figure 6. Typical LTC/Voltage Regulator Test Report Printout

TRM-20 AND TRM-40 USER’S MANUAL REV 1 44 3.11 Performing a Special Resistance Test The Special Resistance Test is used to conduct a resistance test f

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 45 d. The following screen will be displayed: Enter the test time (between 1 to 45 minutes) using the a

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 1 CONVENTIONS USED IN THIS DOCUMENT This document uses the following conventions: • Both the TRM-20 and

TRM-20 AND TRM-40 USER’S MANUAL REV 1 46 Press the [1] key (COPPER, Tk=234.5) to select copper as the winding material. Continue to step g. Press the

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 47 h. The following screen will be displayed: Use the [PAPER ∧ Contrast] and [PAPER ∨ Contrast] keys to

TRM-20 AND TRM-40 USER’S MANUAL REV 1 48 k. The following screen will be displayed momentarily: After the TRM finishes its internal calibration, the

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 49 m. The following screen will be displayed: 1. YES Press the [1] key (YES) to save the test record.

TRM-20 AND TRM-40 USER’S MANUAL REV 1 50 Figure 7. Typical Special Test Report Printout

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 51 3.12 Performing a Dynamic LTC Test The Dynamic LTC Test is used to conduct a resistance test while th

TRM-20 AND TRM-40 USER’S MANUAL REV 1 52 d. The following screen will be displayed: Set the LTC or Voltage Regulator to the lowest position either m

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 53 Press the [ENTER] key or the LTC [RAISE] or [LOWER] key to continue. g. The TRM will start capturing

TRM-20 AND TRM-40 USER’S MANUAL REV 1 54 1. YES Press the [1] key (YES) to save the test results to the connected USB Flash drive. The following scre

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 55 Figure 8. Typical Dynamic LTC Test Results Printout Showing an Opened Circuit

TRM-20 AND TRM-40 USER’S MANUAL REV 1 2 1.0 INTRODUCTION 1.1 General Description and Features The TRM-20 and TRM-40 are Vanguard Instruments’ third g

TRM-20 AND TRM-40 USER’S MANUAL REV 1 56 3.13 Performing a Diagnostic Test In diagnostic mode, the TRM can run a resistance test, display the sense v

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 57 d. The following screen will be displayed: Press the [START] key. e. The V1, V2, and test current (

TRM-20 AND TRM-40 USER’S MANUAL REV 1 58 3.14 Demagnetizing the Transformer Core You can demagnetize the transformer core using the steps below: a.

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 59 e. The degaussing process will start and updates will be displayed on the screen as shown below: W

TRM-20 AND TRM-40 USER’S MANUAL REV 1 60 3.15 Working with Test Records 3.15.1. Viewing the Contents of the Working Memory Whenever a test is perform

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 61 2. PRINT TO PRINTER Press the [2] key (PRINT TO PRINTER) to print the test record on the unit’s therm

TRM-20 AND TRM-40 USER’S MANUAL REV 1 62 3.15.2. Saving Test Results to a Test Record After performing a test, the user is presented the option to sav

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 63 If a USB Flash drive is connected to the unit, continue to step d. If a USB Flash drive is NOT connect

TRM-20 AND TRM-40 USER’S MANUAL REV 1 64 3.15.3. Restoring a Test Record From Flash EEPROM Use the steps below to restore a test record from the TRM’s

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 65 d. The following screen will be displayed: NOTE If you have a USB Flash drive inserted in the unit’

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 3 User Interface The TRM features a back-lit graphic LCD screen (124x64) that is clearly viewable in both

TRM-20 AND TRM-40 USER’S MANUAL REV 1 66 Press the [1] key (YES) if you would like to print the restored test record on the unit’s built-in thermal p

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 67 Press the [1] key (YES) if you would like to print the restored test record on the unit’s built-in th

TRM-20 AND TRM-40 USER’S MANUAL REV 1 68 3.15.4. Restoring a Test Record From a USB Flash Drive Use the steps below to restore a test record from a US

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 69 d. The following screen will be displayed: Press the [2] key (THUMB DRIVE). e. The following screen

TRM-20 AND TRM-40 USER’S MANUAL REV 1 70 3.15.5. Copying Test Records to a USB Flash Drive Use the steps below to copy one or all test records from th

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 71 d. The following screen will be displayed: 1. COPY SINGLE RECORD Press the [1] key (COPY SINGLE REC

TRM-20 AND TRM-40 USER’S MANUAL REV 1 72 2. COPY ALL RECORDS Press the [2] key (COPY ALL RECORDS) to copy all test records from the TRM’s Flash EEPRO

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 73 3.15.6. Printing a Test Record Directory Use the steps below to print a directory of the test records

TRM-20 AND TRM-40 USER’S MANUAL REV 1 74 d. The following screen will be displayed: Press the [1] key (FULL DIRECTORY) to print the entire directory

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 75 3.15.7. Erasing Test Records from the Flash EEPROM Follow the steps below to erase test records from t

TRM-20 AND TRM-40 USER’S MANUAL REV 1 4 1.2 Technical Specifications Table 1. TRM-20/40 Technical Specifications TYPE Portable transformer winding re

TRM-20 AND TRM-40 USER’S MANUAL REV 1 76 d. The following screen will be displayed: NOTE If you have a USB Flash drive inserted in the unit’s “USB

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 77 Press any key to return to the “START-UP” menu. 2. ERASE ALL RECORDS Press the [2] key (ERASE ALL RE

TRM-20 AND TRM-40 USER’S MANUAL REV 1 78 3.16 Erasing Test Records from a USB Flash Drive Follow the steps below to erase test records from a USB Fla

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 79 e. The following screen will be displayed: 1. ERASE SINGLE REC. Press the [1] key (ERASE SINGLE REC

TRM-20 AND TRM-40 USER’S MANUAL REV 1 80 Press the [STOP] key if you do not want to erase all the test records. You will be returned to the “START-UP”

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 81 3.17 Converting Resistance Measurements The TRM can convert the resistance reading of the device unde

1520 S. Hellman Ave • Ontario, CA 91761 • USA Phone: 909-923-9390 • Fax: 909-923-9391 www.vanguard-instruments.com Copyrig

REV 1 TRM-20 AND TRM-40 USER’S MANUAL 5 1.3 TRM Controls and Indicators The TRM-20/40’s controls and indicators are shown in Figure 1. The pur