Wiring; Overall Wiring Arrangement; Figure 8 Overall Wiring Arrangement - Michell Instruments Liquidew I.S. User Manual

Liquidew I.S. User's Manual
2.4

Wiring

2.4.1

Overall Wiring Arrangement

EASIDEW PRO I.S.
DEW-POINT TX
4
3
2
1
TEMPERATURE TX
-
+
HAZARDOUS AREA
Michell Instruments
These tasks are to be undertaken only by suitably qualifi ed
personnel. All the connections to the rear panel are electrical
connections. Exercise due caution, particularly when
connecting to external alarm circuits which could be at high
POWER SUPPLY
POWER SUPPLY
Figure 8 Overall Wiring Arrangement
potential.
CONTROL UNIT
mA
SCN
+V
SENSOR
mA
INPUTS
SCN
+V
NO
ALARM 2 NC
COM
ALARM 4
NO
ALARMS
NO
ALARM 1
NC
COM
ALARM 3
NO
mA
OUTPUT 1
0V
OUTPUT
OUTPUT 2
mA
GND
5
A
COMMS
RS 485 3
B
2
L
90-264 VAC
N
POWER
SOCKET
E
(BY OTHERS)
+V
10-72 VDC
24V
POWER
0V
0V
CONNECTOR
(BY OTHERS)
Gnd
SAFE AREA
INSTALLATION
or
15