Operator Maintenance; General Test; Normal Operation - Deckma Hamburg OMD-2008 Series Instruction Manual

13.

Operator Maintenance

 (See Section 2.
WEEKLY INTERVALS: 13.1
MONTHLY INTERVALS:
The Operator Maintenance should be scheduled at least once a week. If needed, prepare
the Quick Check List to keep track on maintenance. For more information, see section
24.1

13.1 General Test

a) Visually inspect instrument for obvious leakages or damage.
b) Visually check condition of cables and connections.
c) Check the desiccator:
- Press "SYS" button, select Measuring Cell, confirm.
-Internal data is displayed. Identify Dew Point Temperature [°C] and relative
humidity [%rH] data.
The relative humidity [%rH] should be below 10%rH. Dew Point Temperature should
be below 0°C. If not, desiccator exchange is recommended. The desiccator also has to
be exchanged, if the humidity is higher 40%rH. For more information, see section
22.2.4

13.2 Normal Operation

d) Switch on the EV Valve or manual valve to fresh water, so that the cell is flushed with
oil free water. Check 22.2.2
i
When operated via the front panel the EV-Valve will automatically switch back to
normal operation (sample stream measurement) after approximately 120 seconds of
clean water flushing.
For operating the Electric FW Valve press the "ON" button, select "FW FLUSH",
change the Status to "ON". The EV-Valve will switch over to fresh water immediately
and remain in fresh water setting for 2 minutes before switching back to normal
operation. If a prolonged flushing is desired, it can be retriggered within the 2 minutes,
or repeated afterwards.
Anytime the EV-Valve is switched to fresh water, the OMD-2008 will be in alarm
condition, as required by IMO MEPC.107(49). If the instrument is switched to FW
remotely, it will remain so until the remote signal is changing.
e) Let the oil free water flow for few minutes.
f) Verify that the display is showing 0 to 2 ppm. If this is the case, continue with the steps
r) to t).
Important Notes).
to 13.6
13.7 MCU and Automatic Cell Cleaning Device
Functional Button "
SYS"
Data Logger Checking
Operator Maintenance Quick Checklist.
.
Functional Button "ON".
Page: 52 of 102