INFICON T-Guard Leak Detection Sensor - Manual (Page 33)

Installation
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4.4 Installing Electrically
The T-Guard requires a 24 V DC power supply (tolerance ± 10 %).
A wrong polarity triggers the fuse.
The power supply should be able to supply a current of maximum 6 A. Typically, the
T-Guard needs 70W.
The following maximum cable lengths have to be met:
Notice Do not power up the power supply before having attached all other cables
you need!
Power Connector
Only two of the four pins are used for the power supply. The plus pole is marked with
„1+“, the minus pole is marked with „2-“.
4.5 Connecting the control unit
Attach one end of the control unit cable to the connector CONTROL UNIT of the T-
Guard™ Leak Detection Sensor and the other end to the control unit itself. Now T-
Guard™ Leak Detection Sensor can be operated via the control unit.
0.75 mm² 8.5 m
AWG 18 10 m
1 mm² 10 m
AWG 16 15 m
1.5 mm² 17.5 m
AWG 14 25 m
Caution
The CONTROL UNIT output of the T-Guard™ can be damaged when the cable is
disconnected or connected during operation.
Only plug or pull the cables when the T-Guard™ is switched off.