Instruction Manual
ExTox Bio-Compact
Page 10 of 12
BA_Bio-Compact_e_2015-10-22.doc
5.2
Transmitter-Module
All gas sensing equipment is combined in one exchangeable transmitter-module which forms
the right-hand part of the wall mounted housing. In case of maintenance this module can easily
be taken off from the Bio-Compact and replaced by a new pre-adjusted module.
There are two types of transmitter modules available:
Transmitter module
Article
(new/replacement)
In combination with:
CH
4
, O
2
, H
2
S (H)
Measuring ranges:
0-100 % (v/v) Methane
0-25 % (v/v) Oxygen
0-1000 ppm Hydrogen Sulphide
290010/
295010
Bio-Compact
Type (H)
CH
4
, O
2
, H
2
S (L)
Measuring ranges:
0-100 % (v/v) Methane
0-25 % (v/v) Oxygen
0-100 ppm Hydrogen Sulphide
290011/
295011
Bio-Compact
Type (L)
5.2.1
Replacement of a Transmitter Module
On delivery of the Bio-Compact a new transmitter module is installed (Art. 290xxx). In case
you need a new one you will get a replacement transmitter module (Art. 295xxx), on which all
wear parts have been replaced. The module has completely been checked and adjusted. It has
the same warranty as a new module. In case you return the replaced module you will get a
credit note for it.
Replacement is done in few steps:
1.
Release access level 3 on the control unit (see instruction manual of the control unit).
2.
Press the keys "F1+F5+F6". On the display "CHANGE MODULE" is indicated.
3.
Select "Change". The latest actual measuring value is frozen and is constantly sent to the
connected periphery for the duration of the module exchange.
4.
Replace Module:
a.
Untighten glands at measured gas inlet and outlet and remove hoses.
b.
Open the housings of control unit and transmitter module.
c.
Disconnect both cable plugs placed at the control unit.
d.
Loosen the four fixing screws of the transmitter module.
e.
Remove transmitter module. Be careful not to damage the two ribbon-cables which
connect the transmitter module to the control-unit.
f.
Install new transmitter module in reverse order.
5.
Select "Ready". Measurement is started again.
6.
Select "End". The Bio-Compact returns to the standard indication.
The Transmitter Module is pre-adjusted. After exchange it is necessary to let it run for approx-
imately 1 to 3 hours till the final measuring accuracy is reached. During this time you should
not perform any adjustment.
