C h a p t e r 3 I n s ta l l a t i o n
3 - 3
3_
3.3
Wiring Instructions
3.3.1
Circuit Wiring
Precautions
：
1.
To avoid electric shock, do not change the wiring while the power is on.
2.
Since the power meter does not have a power switch, be sure to install a circuit breaker switch on the
power cord of the meter.
3.
Measuring Voltage: Do not measure voltage higher than the rated specification range that the device can
carry.
4.
Measuring current: Measuring the current requires the use of an external Hall sensor.
The recommended wiring material is as follows
：
Wiring method :
Use the following symbol in the figure
：
Symbol
Description
Hall sensor
Terminal Block
Wire gauge
Screw torque
Wire temperature
resistance
Measured Current,
RS-485
AWG 22 ~ 18
2.0 kgf-cm (0.2 N·m)
70
℃
or higher
AUX.Power,
Measured Voltage
AWG 22 ~ 18
5.2 kgf-cm (0.5 N·m)
70
℃
or higher
DPM-MA1121
DPM-PS01
