LMX SERIES™ OPERATION MANUAL
SECTION 11:
Entire Contents Copyright
2018 by Pacific Power Source, Inc. (PPS) • All Rights Reserved • No reproduction without written authorization from PPS.
LMX Series Power Source Operation Manual
Page 433 of 463
The procedure to calibrate voltage gain is:
1.
Select the Calibration entry from the “
System
” menu
2.
Press the “Calibrate” soft key to enter calibration mode
3.
Do not connect any load to the output
4.
Program AC voltage to full scale Vrms L-N for AC mode calibration on all phases. Use the
PROGRAM screen for this.
5.
For AC mode calibration, set the Frequency to the most commonly used value
depending on typical applications
6.
NOTE: If the user calibration is targeted for specific operating conditions, for example
Vac = 115V L-N and Freq = 400 Hz, use these settings instead of those suggested in steps
4 and 5
7.
Enable the Output with no load connected
8.
Enter the DMM VAC readings for all three phase in the respective Voltage data entry
text boxes in the Calibration screen. Move the DMM probe from phase A, to B to C
respectively to obtain each phase reading.
9.
Press "Cal V. gain" soft key
10.
Wait for the V gain coefficients for all phases to be calculated and displayed
