4 - 30
MAN0443.P65 Issue 13 Aug 04
5701 Control System
05701-M-5001 A02279
CHAPTER 4 - INSTALLATION INSTRUCTIONS
LK9
LK6
LK1
Single Channel Control Card 4 - 20mA 05701-A-0301
Fitted with 4 - 20mA Sensor Drive 05701-A-0283
Link Positions
Loop Powered Sensor (Measuring Resistance in Supply Positive Line)
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.
811, 911 ECC,
S2000 Toxic
Sensor
Relay/Field Interface
Card
05701-A-0326
05701-A-0327
05701-A-0328
05701-A-0329
05701-A-0330
01
NS
-
+
Arrows Indicate
Direction of Loop
Current Flow
Screened
Cable
Earth Terminal
29
Brown
Blue
Junction Box
Terminal Block
Junction
Box
Green/Yellow
Cabinet
Protective
Earth
NS
01
28
*UNCTION
"OX
2ED
2ED
'REEN
9ELLOW
3ENSOR
3CREEN
3ENSE0OINT
4OXIC3ENSOR
3IGNAL0OINT
4OXIC3ENSOR
"LUE
"LUE
.3
3CREEN
*UNCTION"OX
4ERMINAL"LOCK
.3