Installing accessories
32
Relay module
Intended use
Relay module – to order:
— For switching of actuators, alarm generators, etc. on the basis of the meas-
ured gas concentration.
— The unit must be disconnected from the mains!
Preparing the docking station
Remove any existing explosion-protection label from the docking station.
1 Release the measuring unit with an Allen key by turning the eccentric catch-
es counter-clockwise ( = approx. 180
o
).
2 Slide the measuring unit halfway upwards and then pull it forward out of the
docking station.
Converting the measuring unit
3 Bend the snap-hooks on the cover of the measuring unit slightly outwards
to release them.
Remove the cover.
CAUTION
If a Polytron 7000 is subsequently equipped with the relay module and/or
the pump module, the complete unit loses its explosion-protection approval.
The user must ensure that no related approval markings are left on the Poly-
tron 7000. The explosion-protection markings has to be removed from the
transmitter.
The use of the Polytron 7000 with a pump module and/or relay module
installed is not permitted in explosion-hazard areas! Explosion hazard!
NOTE
For operation with the relay module, the transmitter must have a 3-wire con-
nection to the control unit.
CAUTION
Use only a 5 mm Allen key without a ball head.
03023758_1.eps
Polytron
OK
33
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