ļ 2002 by ELTRA GmbH Germany ā January 2002 ā Service Manual OH 900 / ON 900 / ONH 2000
3.19-1
3.19
3.
19Upgrading of analysers with electronic rack for using the new
Windows software:
Late analysers equipped with the new flow sensor (pressure transducer) can easily be
upgraded as follows:
+
Remove the electronic rack.
+
Install the new hardware at the same place.
+
Connect the adapters and the new cables for PC and balance.
+
Install the front frame and the rear frame.
Upgrading of older analysers equipped with the previous flow sensor (rotameter in the IR-
cell) is theoretically possible but practically difficult. The new software is made for the
latest versions of analysers with the electronic flow sensor and with two oxygen inlets
furnaces. Therefore, older analysers can not run with the new software, unless the
analyser is first modified to correspond to the later version. This means replacement of the
wiring, new HF board, new upper furnace part with two oxygen inlets and modifications of
the tubing and new flow sensor in the IR-cell.
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