Deckma Hamburg OMD-2008 Instruction Manual page 34

12.3 Additional manual cleaning
Anything that is deposited or located on the surface of the glass tube may
interfere with the measurement. For optimal performance and reliability of the
instrument it is necessary to maintain a cleaned glass tube at all times.
Under normal operating conditions a clean glass tube can be achieved by
following the procedures as described above. Using the Manual Cleaning Unit as
described above can reduce the maintenance work even further, or may allow
operation with low maintenance in more demanding applications.
However, in some cases it is necessary to perform additional cleaning. If an
instrument has been without maintenance for a longer time, if conditions on site
lead to deposition of material inside the glass tube, or generally if the overall
condition of the instrument is to be checked, intensive cleaning is recommended.
Please note that under no conditions, and for no reason whatsoever, it is
necessary or recommended to disassemble the instrument. All cleaning can be
performed through the top opening of the Measuring Cell.
12.4 Indications for need of cleaning
Note: before any attempts to clean the instrument are started, the condition of the
desiccator should be checked! A worn out or saturated desiccator is one of the
most likely causes of unexpected high readings and low instrument performance.
In some cases of high reading with clean water the measuring cell has a problem
with internal coating of the glass tube. Just cleaning with brush and clean water
will not help in this case.
12.5 Cleaning of Glass Tube at 15 ppm Bilge Alarms OMD-2008 series
NEVER DISASSEMBLE THE UNITS AS THIS MAY VOID THE
CLEANING HAS ONLY TO BE DONE TROUGH THE REMOVED CELL CAP BY
Please carry out the following instructions to make sure, that the glass tube is
really clean. Then the unit will show 0 to 2 ppm with clean water.
Clean the glass tube by using the cleaning brush under assistance from some
cleaner.
Issue: 25.09.2015 preliminaryInstruction Manual OMD-2008 (All Versions)
DECKMA HAMBURG GmbH
IMPORTANT:
CALIBRATION AND THE CERTIFICATION!
USING THE CLEANING BRUSH!
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