Fitting The Sensor - Dräger Polytron 3000 Instructions Manual

Fitting the sensor

1 Remove bayonet ring from transmitter, remove dummy plate.
2 Open the front cover of the service port with an Allen key by turning anticlockwise
o
(approx. 60 ).
Use only a 5 mm Allen key without a ball head.
3 Only use the DrägerSensor specified on the sticker on the Polytron 3000 measu-
ring unit.
Remove sensor from packaging.

Remove short-circuit jumper from sensor if installed.

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 co-
ded. Incorrect connection can damage the sensor!
Secure sensor in transmitter with bayonet ring.

If the manufacturer's calibration setting for the sensor is to be used:

Open the front cover of the service port with an Allen key by turning anticlockwise

o
(approx. 60 ). The maintenance switches and potentiometers for calibration are
now revealed.
4 Jumper J1 must be set over the two left-hand pins or removed completely.
If the transmitter is specifically to be calibrated with calibration gas:

Open the front cover of the service port with an Allen key by turning anticlockwise

o
(approx. 60 ). The maintenance switches and potentiometers for calibration are
now revealed.
5 Jumper J1 must be set over the two right-hand pins.
CAUTION
Installing the transmitter
Polytron
2
1
Polytron
3
4
5
11