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The procedure to calibrate DC voltage offset is:
1. Select the Calibration entry from the "System" menu
2. Press the "Calibrate" soft key to enter calibration mode
3. Short all phases to neutral using a shorting jumper
4. You can connect the DMM to the output of phase A as shown in the figure above but it
is not required for this calibration step.
5. IMPORTANT: Program AC voltage to all zero volts to avoid any current from flowing into
the shorted outputs. Use PROGRAM screen to make sure AC settings are zero.
6. Enable the Output with the output shored.
7. Press "Cal V. offset" soft key
8. Wait for the V offset coefficients for all phases to be calculated and displayed
9. Remove the shorting jumper when done
Note: The Mode, Voltage and Current edit boxes do not affect this function.
11.4.2 Current Calibration – Offset (Direct Coupled V Range)
The procedure to calibrate current offset 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
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
LMX SERIES™ OPERATION MANUAL
Calibration
SECTION 11:
Page 431 of 463
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