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2 terminal connections 4-20ma and rs-485, Terminal connections 4-20ma and rs-485, Figure 8 sensor wire connections – Detcon CX-DM User Manual

Page 12

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Model CX-DM

mA

(+)

(-)

Wiring to

Sensor Assembly

R

ed

Gr

ee

n

B

la

ck

Explosion

Proof

Junction Box

(+)

mA

(-)

Wiring to

Controller

R

ed

Gr

ee

n

B

la

ck

Detcon Inc.

Rev. 1

440-005208-000

MODULE

PROTECTION

TRANSIENT

Figure 8 Sensor Wire Connections

a) Remove the junction box cover. Identify the terminal blocks for customer wire connections.

b) Observing correct polarity, terminate the 3-conductor 4-20mA field wiring (+, -, mA) to the sensor

assembly wiring in accordance with the detail shown in Figure 8.


c) Replace the junction box cover.

2.6.2 Terminal Connections 4-20mA and RS-485



1. Remove the junction box cover.

2. Connect the incoming 24V to the terminal labeled "+" and 24V return to the terminal labeled "–". Connect

the mA output to the “mA” terminal and the Modbus signals (if used) to the “A” and “B” terminals. Note:
the “Y” terminal is not used.


3. Replace the junction box cover after Initial Start Up (Section 2.7).

CX-DM Instruction Manual

Rev. 1.3

Page 8 of 40