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EPM 5300 SERIES ADVANCED POWER METERS – INSTRUCTION MANUAL 11–83
EPM 5300 Series Meters
Chapter 11: Programming
Group 2 - Meter
Calibration
GE Consumer & Industrial
Multilin
Programming Group 2 - Meter Calibration
WARNING—READ THIS SECTION CAREFULLY BEFORE PROCEEDING:
• Any rescaling, such as a change in a transformer ratio, can be accomplished in
GROUP 1. Calibration is not necessary.
• Meter calibration cannot be performed if the meter is installed for service. The
sensing inputs must be connected to a power supply with variable voltage and
separate current outputs.
• The calibration procedure requires highly accurate and stable input signals.
Incorrect readings result from improper calibration procedures. If unsure, return
unit to the factory for calibration.
• BEFORE calibrating any channel, make a note of its Full Scale Setting (see Chapter
10). Set the Full Scale in accordance with Table 10-2 for calibration. Restore
original Full Scale Setting when calibration is completed.