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57
Maintenance and service
•
Remove the electronics cover on the back of the analyser
•
Disconnect the electrical connection of the solenoid valve on the main board
•
Detach the solenoid valve from the plastic plate
•
Attach a new solenoid valve to the plastic plate
(Note the direction of flow, the arrow on the component points in the direction of the
measuring chamber)
•
Guide the electrical connection of the new solenoid valve through the opening provided
in the housing
•
Connect the new solenoid valve according to the previous assignment on the main board.
See page 22
•
Reassemble the unit and put it into operation.
After replacing the solenoid valve, the reagent must be pumped from the bottle into the
measuring chamber and the measuring chamber must be rinsed.
•
Now open the hand valve
•
Switch on the LIMES
•
Press and hold the "Reagent" button until the peristaltic pump pumps bubble-free reagent
into the measuring chamber. (Takes about 10 seconds)
•
Press and hold the "Valve" button until clear water flows out of the drain hose
Observe the electrical connection according to the illustration on page 22
Exchange of the measuring chamber
Preparation:
•
Ensure a pressureless supply. (Close the hand valve)
•
Loosen the hose connection to the inlet and outlet on the LIMES
•
Switch on the unit briefly.
•
Press and hold the "Valve" button. By opening the solenoid valve, you relax the supply
line, and the measuring chamber empties.
•
Hold a small container under the inlet and outlet.
•
Switch the unit off again.
Only when replacing the measuring chamber:
•
Loosen the reagent connection on the measuring chamber
•
Remove the measuring chamber to the front from the housing
(measuring chamber is held in the housing by magnets).
•
Disconnect the inlet and outlet hoses from the measuring chamber.
•
Replace the measuring chamber and reassemble the unit
After a measuring chamber exchange, reagent must be pumped from the bottle into the
measuring chamber and the measuring chamber must be rinsed.
•
Now open the hand valve and switch on the LIMES
•
Press and hold the "Reagent" button until the peristaltic pump pumps bubble-free reagent
into the measuring chamber. (Takes about 10 seconds)
•
Press and hold the "Valve" button until clear water flows out of the drain hose
Summary of Contents for 32-074165
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