Honeywell 5704 Operating Instructions Manual page 87

MAN0448_Issue 13_01-2010
005704-M-5001 A03249
CHAPTER 4 - INSTAllATION INSTRUCTIONS
Junction
Box
+
-
Brown
Blue
811, 911 ECC,
S2000 Toxic
Sensor
Notes: 1. Where a sensor is earthed locally, either to an Earth Stud or through the sensor
casing or mounting, to avoid earth loops the screen sheath of the cable should only
be connected at one end.
2. The above diagram shows the sensor connections for Channel 1. Channels 2, 3 and
4 connections are similar and their pin connection numbers are shown below:
Junction Box
Terminal Block
S
01
Green/yellow
Earth Terminal
Quad Relay
Interface Connections
loop Powered Sensor (Measuring Resistance in Supply Return)
Quad Relay Interface Card
Arrows Indicate
Direction of loop
Current Flow
Screened Cable
Channel
1
2
3
4
4-24
5704 Control System
05704-A-0121
S
15
17
01
Protective
Earth
Cabinet
Sensor Connection
S
15
16
21
22
01
17
18
23
24