Knauer Azura ECD 2.1, Instructions Manual

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AZURA® Detector ECD 2.1 Instructions, V6685
4. Maintenance & shutdown
4.1 Maintenance
In this paragraph all maintenance is described which can be performed
by the end-user, all other maintenance & service procedures may be per-
formed by authorized service engineers only.
Periodic check for leakage
Perform leak checks on LC tubing, flow cells and connections on a dai-
ly basis and check if the drain on the bottom of the oven compartment
is not blocked or closed. Do not allow flammable and/or toxic solvents
to accumulate. Follow a regulated, approved waste disposal program.
Empty and clean waste container regularly. Never dispose of such pro-
ducts through the municipal sewage system. Check daily that the mobile
phase bottles contain enough mobile phase for the number of analyses
planned to be executed.
Periodic check of the oven temperature
The operator should perform regular checks to verify if the actual oven
temperature is in accordance with the set temperature of the ECD 2.1.
In case the actual temperature exceeds 70 °C switch off the detector
and contact the manufacturer or its representatives for service.
Flow cell
Check the performance of the detector & flow cell on a daily basis by eva-
luating background current, noise and signal. An increase in background
current, noise and/or loss of sensitivity may be a sign of contamination of
the working electrode (WE) and/or a sign that maintenance is required on
the reference electrode (REF) of the flow cell. If necessary perform main-
tenance on the flow cell. Detailed information about flow cell maintenan-
ce instructions are described in the instructions supplied with the specific
flow cell (SenCell, VT-03 or FlexCell) purchased in combination with your
detector.
Cleaning
In general, the ECD 2.1 needs very little maintenance. The outside of the
detector may be cleaned with a non-aggressive cleaning liquid.
Do not use any organic solvents to clean the exterior of the detector,
because this may lead to damage of the paint layer.
In case of leakage in the cell cabinet (tubing, connectors, cell, column
etc.) remove the spilled mobile phase or other solutions as soon as pos-
sible because this may damage the paint layer, or result in the deposition