PC5 SERIES WATT TRANSDUCER CALIBRATION MANUAL
Page 4
CAUTION
Only qualified personnel should install
the current transformer. Do not apply
line current through the window of the
current transformer with the secondary
leads open. A SEVERE SHOCK TO
THE INSTALLER OR DAMAGE TO
THE CURRENT TRANSFORMER
MAY RESULT.
If necessary to operate the current
transformer without the watt transducer, bolt
the two secondary leads together and mark
with a CAUTION tag.
4.
POWER FACTOR
All PC5 watt transducers are corrected for
power factors from 0 lead to unity to 0 lag (0°
to ±90°) and are within the specified accuracy
listed.
5.
FREQUENCY RANGE
The PC5 Watt Transducers are designed to
operate from 50 to 70 Hz. However, good
results can be obtained from 40 to 400 Hz.
See specification sheet for PC4 Models when
400 Hz is required.
6.
SIGNAL SOURCE
A
Options A & B, 0 to 1 mADC constant current output, may be used to drive a 1
milliampere analog meter directly..
Figure 3
Or, may be scaled for a digital meter using a load resistor.
1
2
3
4
5
6
7
8
9 10 11 12
1/2 horsepower
single phase motor
load
115 volts AC
PC5-001B
LRB 500 load
resistor
0276
Watts
115 volts
-
+
Figure 4
