GE instruction manual Watt-Hour Accuracy Testing Verification, EPM 6000 Accuracy Test Constants

CHAPTER 4: USING THE METER

4.1.5Watt-Hour Accuracy Testing (Verification)

To be certified for revenue metering, power providers and utility companies have to verify that the billing energy meter will perform to the stated accuracy. To confirm the meter's performance and calibration, power providers use field test standards to ensure that the unit's energy measurements are correct. Since the EPM 6000 is a traceable revenue meter, it contains a utility grade test pulse that can be used to gate an accuracy standard. This is an essential feature required of all billing grade meters.

FIGURE 4–3: Using the Watt-Hour Test Probe

The following table lists the watt-hour pulse constants for accuracy testing.

Table 4–2: EPM 6000 Accuracy Test Constants

Voltage Level	Class 10 Models	Class 2 Models
Below 150 V	0.2505759630	0.0501151926
Above 150 V	1.0023038521	0.2004607704

4–4 EPM 6000 MULTI-FUNCTION POWER METERING SYSTEM – USER GUIDE