Installing The Transmitters In Non-Explosion-Hazard Areas; Installing The Measuring Unit Dräger Polytron 3000 - Dräger Polytron 3000 Instructions Manual

Installing the transmitter

Installing the transmitters in non-explosion-hazard areas

The explosion-protection markings has to be removed from the transmitter. Once
the transmitter has been used after installation in this manner, it may never be
installed in explosion-hazard areas.
Ex-hazard area, zone 2 or non explosion-hazard area
+24 V
4 to 20 mA
Installing the measuring unit Dräger Polytron 3000
Remove the rain cover from the previously installed docking station.

Examine seal for signs of dirt and clean if necessary.

1 Check position of eccentric catches and correct if necessary.
The eccentric opening must point upwards, engaged position.
Use only a 5 mm Allen key without a ball head.
Check the polarity (marking in the docking station) and cable routing and check

that the connector is securely seated; rectify as necessary (see the installation
notes for the Polytron docking station).
Unpack the measuring unit Dräger Polytron 3000.

2 Insert the measuring unit about halfway up the docking station and slide it in as
far as it will go.
3 Lower the unit along the front edge of the docking station. About 5 mm before its
hits the stop, the resistance will increase as the connector engages with the sok-
ket on the printed circuit board.
1 Turn the eccentric catches clockwise with an Allen key to lock the measuring unit

( = approx. 180
10
CAUTION
CAUTION
o
).
Non-explosion-hazard area
2
+
4 ... 20 mA
+
–
0 V
Control unit
1
3