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Customer wants to adjust the scale factors used for voltmeter, ammeter, or wattmeter values of a PM800 series meter.
Scale or Resolution Change
Scale factors are automatically assigned based on the CT and PT ratio input in registers 3209-3216 of the meter.
The scale factors can be adjusted through register writes to the meter using the command interface in the PM800 series meter or using a software.
To get to the register read/write command interface on a PM800 series meter, go to MAINT > DIAG > REG.
1. Write a value of 9020 to register 8000 to enter the setup mode.
2. Write the desired scale factor value to the appropriate register. Repeating this step for each subsequent scale factor change can change multiple scale factors.