Deckma Hamburg OMD-2008, Instruction Manual

Page: 55 / 100

Page: 54 of 102
13.6 Data Logger Checking
t)
Check the data logger:
1. Is the data logger recording the data?
2. Check the clock for time deviation.
For more information, see section: 14. Programming Mode.
13.7 MCU and Automatic Cell Cleaning Device
a)
Stop water flow and air supply, respectively.
b)
Check the wiper seal and the O-Rings. Clean if necessary. The wiper piston can be
pulled out easily. It is magnetically coupled.
c)
To reinsert just put the wiper back. The magnetic coupling will arrest it.
i
Both MCU and Automatic Cell Cleaning Device may require additional manual
cleaning. Check the Sample Glass Tube condition and correct working of cleaning
systems at regular maintenance schedule.

Remarks:
The automatic cleaner will not work without sufficient supply of pressurized
instrumentation air.
If the wiper is not correctly installed, the wiper piston may proceed to its lower position,
thus blocking the measurement region of the Measuring Cell Glass Tube. This can cause
false alarms and error conditions.
A worn out or damaged wiper seal may fail to properly clean the Sample Glass Tube. A
damaged or missing wiper seal may lead to permanent damage due to scratching the
Sample Glass Tube surface.
With excessive air pressure while the automatic cell cleaning device is taken out of the
Measuring Cell, if the cleaning system operates, the wiper may be thrown out. Handle
with care to avoid loss of wiper and avoid risk of injury.

It is recommended to wear safety goggles and safety gloves while handling chemicals.