4 wiring, 1 protective grounding, Wiring -14 – Yokogawa ADMAG CA User Manual

Page 23: Protective grounding -14, Caution

4.INSTALLATION

M 1E8B0-01E

4-14

4.4 Wiring

Confirm that all connections are correct before applying power to the
instrument. Improper wiring may damage the flowmeter.

The external signal wirings are connected into the terminal inside the converter.
Please connect to each terminal (Please refer to Figure 4.4.1) by taking off a cover
backside the converter.

Power supply
Protective grounding
4 to 20 mA DC output

Pulse or alarm

Terminal Symbols

Description

N–
L+

I+

I–

P+

P–

Protective grounding

Current Output 4 to 20mA DC

Power Supply

Pulse or alarm output

Figure 4.4.1 Terminal

Please give attention to avoid the cable is bended excessively.

4.4.1 Protective Grounding

Please be sure to connect protective grounding of ADMAG CA with cable of
2mm

or larger cross section in order to avoid the electrical shock to the

operators and maintenance engineers and prevent the influence of external
noise. And further connect the grounding wire to the mark (100

Ω

less).

CAUTION