Wiring Of Ma Output Versions - Xtralis VESDA Sensepoint XCL Installation Manual

VESDA
2.5

Wiring of mA Output Versions

CAUTION:
Ensure that the wiring of the detector is correct, and the Current Source/Sink selection switch is
correctly set BEFORE applying power. Failure to do so may result in damage to the VESDA
Sensepoint XCL detector.
Power Connection
When connecting to DC power, make sure that the polarity is correct.
If an external power source is used, ensure that terminal 4 "Common" is used to connect the power and
controller grounds together.
Inhibit Level Selection
Use the inhibit switch to set the level of current which is required when inhibit is active.
1. With this switch in the upper position, a current of 4 mA is output in inhibit mode.
2. With this switch in the lower position, a current of 2 mA is output in inhibit mode.
Current Source/Sink Selection
CAUTION:
Always disconnect power before changing the position of this switch. Failure to do so may result in
damage to the VESDA Sensepoint XCL detector.
Use the current source/sink switch to choose between source mode and sink mode.
35563_02
VESDA Sensepoint XCL – Large Bore Installation Manual
9