8. Maintenance and care
Maintenance of a HPLC instrument is critical to the success of analyses
and the reproducibility of results. If you require a maintenance task which
is not described here, contact your dealer or the Customer Support.
8.1 Maintenance tasks
Electric shock
High voltages inside the detector pose a life threatening risk.
Only authorized service technicians are allowed to remove the
housing and to replace the lamp.
Eye injury
Eye irritation by UV light. Bundled UV light can escape from the flow
cell or fiber optic cables.
Switch off the detector and disconnect it from the power supply.
Electronic defect
Performing maintenance tasks on a switched on device can cause da-
mage to the device.
Switch off the device
Pull the power plug.
Users may perform the following maintenance tasks themselves:
Regularly check the light intensity of the D
2
lamp (best before 2000
operating hours).
Inspect the flow cell assembly
Clean the flow cell.
Replace the flow cell.
8.2 Maintenance contract
The device may only be opened by the Technical Service of KNAUER or
any company authorized by KNAUER. These maintenance tasks are part
of a separate maintenance contract.
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AZURA® Detector UVD 2.1S Instructions, V6820
