Honeywell 5701 Operating Instructions Manual page 92

MAN0443.P65 Issue 13 Aug 04
05701-M-5001 A02279
CHAPTER 4 - INSTALLATION INSTRUCTIONS
Single Channel Control Card 4 - 20mA 05701-A-0301
Fitted with 4 - 20mA Sensor Drive 05701-A-0283
Junction
Box
S
+
-
Brown
Blue
811, 911 ECC, S2000
Toxic Sensor
Junction Junction Box
Box Terminal Block
S
01
+
-
Red
Blue
SensePoint
Toxic Sensor
Note: Where a sensor is earthed locally, either to the 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,
i.e., at the sensor or at the Interface/Relay Card.
Loop Powered Sensor (Measuring Resistance in Supply Return)
Junction Box
Terminal Block
01
Green/Yellow
Earth Terminal
Green/
Red
Yellow
Blue
Sensor
Screen
Relay/Field Interface
Card
05701-A-0326
05701-A-0327
05701-A-0328
05701-A-0329
05701-A-0330
Arrows Indicate
Direction of Loop
Current Flow
Screened
Cable
SignalPoint
Toxic Sensor
4 - 29
5701 Control System
Cabinet
S 27
01
Protective
Earth
Link Positions
S
01
Screen
28
LK13
LK10
LK4