Specifications

e Electro Industries/GaugeTech Doc #: E145701 6-3
6.3: Watt-HHour Accuracy Testing
(Verification)
Q
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 Shark 100 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.
Refer to Figure 6.5 below for an example of how this process works.
Refer to Figure 6.6 below for the Wh/Pulse Constant for Accuracy Testing.
6.3.1: Infrared & KYZ Pulse Constants for Accuracy Testing
Figure 6.4: Using the Watt-Hour Test Pulse
NOTE: Minimum pulse width is 40ms.
Watt-Hour
Test Pulse
Figure 6.3: Watt-Hour Test Pulse
Voltage Level Class 10 Models
Below 150V
Infrared & KYZ Pulse Constants for Accuracy Testing
0.2505759630
Above 150V 1.0023038521
0.0501151926
Class 2 Models
0.2004607704
Figure 6.5: EPM 6000 Accuracy Test Constants