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6.3: Watt-H H our 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 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
Voltage Level
Below 150V
Above 150V
NOTE: Minimum pulse width is 40ms.
e
Electro Industries/GaugeTech
Figure 6.4: Using the Watt-Hour Test Pulse
Infrared & KYZ Pulse Constants for Accuracy Testing
Class 10 Models
0.2505759630
1.0023038521
Figure 6.5: EPM 6000 Accuracy Test Constants
Doc #: E145701
Figure 6.3: Watt-Hour Test Pulse
Class 2 Models
0.0501151926
0.2004607704
Watt-Hour
Test Pulse
6-3
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