Hach-Lange GANIMEDE N - Manual (Page 45)

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Section 5 Maintenance
5.1 Sample changer
The sample changer is a maintenance-free device. For safe and accurate operation, it is
necessary to keep the device clean. A soft cloth that is moistened with water should be
used for (external) cleaning. It must be made sure that no fluid penetrates the device
during cleaning!
In the event of an overflow of the rinsing vessel or spillage of small amounts of liquid over
the sample changer, the sample changer must be switched off (the power plug must then
be disconnected!) and cleaned (in order to dry it). If larger quantities of liquid enter into the
device, it must be made sure that the device is dried completely before switching it back
on.
5.2 Open-loop control unit
The open-loop control unit is cleaned with a soft cloth that is moistened with water.
Further repairs can only be carried out by the manufacturer's service departments.
5.3 Analysis unit
All defects that cannot be repaired by means of a tube change or by means of cleaning the
analysis cuvette, may only be repaired by the service personnel authorized by the
manufacturer.
For the cleaning of the cuvette and for the tube change, it is necessary to remove the
cover in the middle of the device with the lateral knurled screws.
5.3.1 Mount the cover
1. Hook the cover onto the upper housing edge.
2. Guide the tubes into the recesses on the right and left.
3. Press on the cover.
4. Make sure that no tube is jammed.
5. Fasten the cover with the knurled screws.
D A N G E R
The sample changer must be disconnected from the mains during cleaning. The PTFE sealing
rings in the housing on the sample arm, on the rinsing vessel and the sealing ring on the tray
holder must not be removed!
Further repairs can only be carried out by the manufacturer's service departments.
D A N G E R
Under no circumstances may the digestion cuvette and its supply and drainage lines be opened
or manipulated.
If an over-pressure is intercepted by the dual protection system, the analysis unit must be
switched off and the service department must be informed in order to avert damage to the device.
D A N G E R
Burn hazard
Only remove the cover with the power plug pulled out and with a cooling time of a few minutes.