Vanguard ATRT-03_03B - Manual (Page 30)

REV 7 ATRT-03, ATRT-03A, AND ATRT-03B USER’S MANUAL
24
3.2 Setting the Test Voltage
The ATRT-03 offers three test voltages, 8 Vac, 40 Vac, and 100 Vac. The unit always defaults to
40 Vac at power-on. The 8 Vac test voltage is for testing transformers which require low test
voltages, such as metering Current Transformers (CT’s). For metering CT’s, higher voltages may
drive the CT’s into saturation, thus giving invalid results. The 40 Vac test voltage is
recommended for testing power transformers. The 100 Vac test voltage is recommended for
testing power transformers in noisy environments. Follow the steps below to set the test
voltage:
NOTE
Pressing the [STOP] key at any time will return you to the “START-UP” menu.
a. Turn on the unit and start from the “ START-UP” menu:
Press the [2] key (SETUP).
b. The following screen will be displayed:
Press the [4] key (NEXT PAGE).
c. The following screen will be displayed:
Press the [3] key (SET TEST VOLTAGE).
d. The following screen will be displayed:
Select the desired test voltage by pressing the corresponding key on the numeric keypad
(
[1] , [2] , or [3] ).
SELECT TEST VOLTAGE
1.8V (CT TEST)
2.40V (NORMAL TEST)
3.100V (NOISY ENV.)
1.COMPUTER CONTROL
2.SET TIME
3.SET TEST VOLTAGE
4.TEST PLANS
1.ENTER XFMR ID
2.REVIEW RECORD
3.RESTORE RECORD
4.NEXT PAGE
1.TEST XFMR 08/16/10
2.SETUP 08:14:58
3.CALCULATOR
4.DIAG 5.QUICK TST