PC5 SERIES WATT TRANSDUCER CALIBRATION MANUAL
Page 10
B
Example: 10/ 3W, 30/ 3W, 2 Elements)
Model
PC5-062D
Voltage
240 VAC
Current
100 A AC
Rated Output
10 V @ 40 kW
External Sensor Required
2 (Factory Supplied 100:5 current transformers)
Test Connections Drawing
Figure 8B
Standard Wattmeter Set-Up
240 V, 100 A FS @ 20 kW or 240 V, 10 A FS @ 2 kW
Accuracy
± 0.50% FS
Refer to Figure 10A or 10 B on page 17
Calibration Test Set-Ups, make the
necessary
connections
between
the
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-
sary current to obtain either 20 kW or the
2kW reading if 10 ampere turns are used in
the Standard Wattmeter.
Adjust the "CAL" trimpot, (located on the
PC5-062D) for a 10 V ± 0.50% FS. Like-
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 ± 0.50%
FS.
C
Example: 30/ 4W, 2½ Element)
Model
PC5-7 .5D
Voltage
120 VAC
Current
5 A AC
Rated Output
10 V @ 1500 kW
External Sensor Required
None
Test Connections Drawing
Figure 9A
Standard Wattmeter Set-Up
120 V, 5 A FS 500 W
Accuracy
± 0.5% FS
Refer to Figure 10A or 10B on page 17
Calibration Test Set-Up, make the required
connections between the calibration and the
direct connections in Figure 9A on page 16.
