Deckma OMD Series User manual

DECKMA
HAMBURG
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S E R V I C I N G A N D C L E A N I N G
M A N U A L
O M D - S E R I E S
Cleaning Procedure of Measuring Cell MZ-09
•Cleaning Manually
•Cleaning Mechanically Assisted
•Cleaning of Iron Oxide and Calcification

DECKMA
HAMBURG
Page: 2
Appendix V.
Content
Revision............................................................................................................................ 2
Symbols ................................................................................................................................... 3
1. Measuring Cell Cleaning ............................................................................................ 4
1.1 Cleaning Manually.................................................................................................................. 4
1.2 Cleaning with Sample Tube Cleaner ...................................................................................... 6
1.3 Cleaning Mechanically Assisted ............................................................................................. 7
1.4 Cleaning of Iron Oxide and Calcification................................................................................ 9
1.5 Outward Appearance........................................................................................................... 10
1.6 Checking the O-Rings ........................................................................................................... 11
1.7 Desiccator Check.................................................................................................................. 13
Servicing Worldwide ....................................................................................................... 14
Notes:............................................................................................................................. 15
Revision
Document-Name
Revision No.
Notation
Date
Servicing and Cleaning Manual
OMD-Series
R01_20170316
16.03.2017

DECKMA
HAMBURG
Page: 3
Appendix V.
Usage of the Service Manual
This Service Manual will guide you how to clean a Measuring Cell onboard. The
instruction manual is split into sections. Every section handles a specific type of
cleaning. The first part gives you general information about the outward appearance
before cleaning and servicing the Measuring Cell.
The included information should be used only by a technician or a system operator for
keeping the units correctly set up and cater for a clean Measuring Cell.
Following this Service Manual ensures clean maintenance and allows a right handling
of the instrument
This instruction manual contains also information about the service support and our
contact details. Additionally, the symbols below will support you during the cleaning
process.
Symbols
✓
This symbol is used to show the right handling.
X
This symbol is used to show what to avoid.

This symbol is used for giving advices about servicing.

This symbol is used for giving general advices.

DECKMA
HAMBURG
Page: 4
Appendix V.
1. Measuring Cell Cleaning
1.1 Cleaning Manually
Step 1.
Stop any water flow.
Step 2.
Figure 1
Figure 2
Unscrew Cell Cap, MCU, or Autoclean.
Remove Cell Cap, MCU, or Autoclean.
Step 3.
Figure 3
1. For cleaning the Sample Glass Tube, use
the Cell Cleaning Brush with upwards
and downwards motion through the
Measuring Cell several times. Use some
water to wet the Cell Cleaning Brush.
2. Remove the Cell Cleaning Brush and
replace the Cell Cap.
3. Switch clean water valve to fresh water
and allow oil free water to flow through
the instrument for few minutes.
4. Avoid air bubbles in the stream.
5. Verify, that the display shows 0 to 2 ppm.
6. Cleaning has been sufficient if display
shows 0 to 2 ppm.

DECKMA
HAMBURG
Page: 5
Appendix V.
Step 4.
Figure 4
1. Screw in the Cell Cap.
2. Check, that the Measuring Cell Cap
is screwed down completely.

DECKMA
HAMBURG
Page: 6
Appendix V.
1.2 Cleaning with Sample Tube Cleaner
Step 1.
Figure 5
For intensive cleaning use the Sample Tube
Cleaner from the Service Kit (Order No.:
18570). Apply clean Sample Tube Cleaner to
the Cell Cleaning Brush and add water.
Step 2.
Figure 6
Clean the Sample Glass Tube whith the Cell
Cleaning Brush by applying the Sample Tube
Cleaner.
1. For cleaning the Sample Glass Tube, use
the Cell Cleaning Brush with upwards
and downwards motion through the
Measuring Cell several times. Wet the
Cell Cleaning Brush.
2. Remove the Cell Cleaning Brush and
replace the Cell Cap.
3. Switch clean water valve to fresh water
and allow oil free water to flow through
the instrument for few minutes.
4. Observe, that the display shows 0 to 2
ppm.
Check, that the Measuring Cell Cap is screwed down completely.

DECKMA
HAMBURG
Page: 7
Appendix V.
1.3 Cleaning Mechanically Assisted
Step 1.
Figure 7
If the manual cleansing was not successful,
an additional cleaning is recommended.
1. Cut the upper part of the Cell
Cleaning Brush.
2. Insert the wire stem of the Cell
Cleaning Brush into a screwdriver
and fix it.
3. Slowly rotate the Cell Cleaning Brush
for a few minutes in the Sample Glass
Tube (See Step 3.)
4. Flush with clean water and re-test.
Step 2.
Figure 8

You can also use some Sample Tube
Cleaner. It does not damage the
surface of the Sample Glass Tube.
Please do not use other abrasive
cleaners, hard particles contained
may damage the Sample Glass Tube
within seconds.

DECKMA
HAMBURG
Page: 8
Appendix V.
Step 3.
Figure 9
Use a screwdriver for an efficient cleaning.
Slowly strike the Cell Cleaning Brush in the
Measuring Cell for a few minutes and flush
with clean water.
Check, that the Measuring Cell Cap is screwed down completely!

DECKMA
HAMBURG
Page: 9
Appendix V.
1.4 Cleaning of Iron Oxide and Calcification
Step 1.
Figure 10
To clean Iron Oxide deposit, calcification,
and other stubborn deposit, it is
recommended to use the Citric Acid from
the Service Kit (Order No.: 18570).
1. Ensure that the valves remain closed.
2. Mix some Citric Acid with 15 ml water.
3. Fill the Sample Glass Tube with the Citric
Acid liquid and let it soak over night.
4. Flush with clean water without gas.

DECKMA
HAMBURG
Page: 10
Appendix V.
1.5 Outward Appearance
Step 1.
✓
Figure 11
Figure 12
Check, that Cell Cap, MCU, or Autoclean is screwed
down completely.
X
Figure 13
A not completely screwed down Cell Cap may allow
formation of air bubbles and may influence with flow
rate settings.

DECKMA
HAMBURG
Page: 11
Appendix V.
1.6 Checking the O-Rings
Step 1.
Figure 14
Figure 15
1. Check the condition of the three
O-Rings as shown in the figures. If
damaged, replace.
2. O-Rings B + C may or may not be
present, depending on flow rate
adjustment.
3. O-Ring A is always present.
A=11.5X3 mm
B= 8.5X2 mm
C= 4.5X2 mm
Figure 16
A
B
C
A
B

DECKMA
HAMBURG
Page: 12
Appendix V.
Figure 17
Figure 18
Figure 19
For Units equipped with MCU/ Automatic Cell Cleaning Device, check the two O-Rings and
the piston seal.
Wiper Piston

DECKMA
HAMBURG
Page: 13
Appendix V.
1.7 Desiccator Check
✓
Figure 20
X
Figure 21
1. Press “SYS” Button, select Measuring
Cell, confirm.
2. Internal data will be displayed.
3. The relative humidity [%rH] should be
below 10%rH.
4. The dew-point Temperature should be
below 0° C.
5. If not, exchange desiccator.
6. The desiccator also has to be exchanged,
if humidity is higher 40%rH.

Do not expose the Desiccator to ambient
air. Do not leave the Desiccator opening
uncovered.