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UPS for 480 Vac Grid, User Guide, doc. rel.4.0
8.2.2.1.
POWER MODULE AC INPUT VOLTAGE CALIBRATION
Use this function if it becomes necessary to recalibrate the voltage readings of any of the UPS's
input phases.
Keep in mind that this does not refer to the input reading of a module, but
instead to input of all modules combined together.
Auto Correction is enabled by default. This is the recommended setting for most
situations.
After performing any calibrations or adjustments the Auto Correction feature
should be re-enabled, for optimal system performance.
To perform power module ac input voltage calibration:
Calibration of the input ac voltage reading should be performed only under
conditions where the input voltages are stable and not subject to fluctuation.
1.
From the System Menu go to Setup > Modules > AC Input voltage calibration.
The AC Input voltage calibration screen appears: