25
Electrical connections
Fitting the sensor
1 Remove bayonet ring from transmitter, remove dummy plate.
● Remove sensor from packaging.
● Remove the short-circuit strap from the sensor (if it is fitted).
● There is a coded connector on the back of the sensor. Place the sensor in the
opening with the connector at the back and the Dräger logo at the front.
Before plugging the connector in the socket, ensure that they are identically cod-
ed. Incorrect connection can damage the sensor!
● Secure sensor in transmitter with bayonet ring.
● If necessary, calibrate the sensor as described on page 42.
● If pre-calibrated sensors are used, the alarm chain must be tested with, for exam-
ple, the bump test.
Attention:
For use in Zone 22, tighten the locking screw (2 mm Allen screw) of the
sensor bayonet ring tight enough to ensure that the bayonet ring is
secured against unintended loosening.
01723758_1.eps
1
Polytron
OK
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