Honeywell 5701 Operating Instructions Manual page 93

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
01
NS
+
-
Brown
Blue
811, 911 ECC,
S2000 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 Positive Line)
Junction Box
Terminal Block
Green/Yellow
Earth Terminal
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
4 - 30
5701 Control System
Cabinet
01
NS 29
Protective
Earth
Link Positions
28
LK9
LK6
LK1