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B
Example: 10 / 3W, 30 / 3W, 2 Elements)
Model
Voltage
Current
Rated Output
External Sensor Required
Test Connections Drawing
Standard Wattmeter Set-Up
Accuracy
Refer to Figure 10A or 10 B on page 17
Calibration
Test
necessary
connections
calibration and Figure 8B on page 15.
Please note if the AC current source will not
supply the 100 amperes, ampere-turns may
be used. For instance 10 turns through the
window of each current sensor will produce
a 100-ampere current signal when 10
amperes are applied.
Energize the voltage and apply the neces-
C
Example: 30 / 4W, 2½ Element)
Model
Voltage
Current
Rated Output
External Sensor Required
Test Connections Drawing
Standard Wattmeter Set-Up
Accuracy
Refer to Figure 10A or 10B on page 17
Calibration Test Set-Up, make the required
PC5 SERIES WATT TRANSDUCER CALIBRATION MANUAL
Set-Ups,
make
between
2 (Factory Supplied 100:5 current transformers)
240 V, 100 A FS @ 20 kW or 240 V, 10 A FS @ 2 kW
sary current to obtain either 20 kW or the
the
2kW reading if 10 ampere turns are used in
the
the Standard Wattmeter.
Adjust the "CAL" trimpot, (located on the
PC5-062D) for a 10 V
wise, hold the current at 100 amperes and
change the voltage such that the power
reading goes from 0 to 20 kW. Next, with
the voltage potential at 240 VAC and current
adjusted for a 20 kW reading, change the
voltage linearity should be within
FS.
connections between the calibration and the
direct connections in Figure 9A on page 16.
PC5-062D
240 VAC
100 A AC
10 V @ 40 kW
Figure 8B
0.50% FS
0.50% FS. Like-
0.50%
PC5-7 .5D
120 VAC
5 A AC
10 V @ 1500 kW
None
Figure 9A
120 V, 5 A FS 500 W
0.5% FS
Page 10
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