Repair and adjustment
37
Service instructions
5015108-00Edition 0403
V1453
Electrical
cabinet
Measuring cell
Conductivity instrument
V1312
Conductivity measurement (extra equipment)
Conductivity is measured with equipment from Endress+Hauser.
This must only be done by authorised personnel.
Function in washing process
The conductivity meter monitors the quality of the water in the final rinse, independently of the
process control.
If the conductivity at the end of the final rinse is higher than the preset value, the machine is
drained with the Emptying 2 phase, ie the machine is drained while at the same time being
supplied with DW/WFI water and the final rinse is repeated automatically.
If, after three repetitions, the conductivity is still above the preset value, the process is stopped
and fault code 11 appears on the display.
Measuring range
The normal measuring range is 0-20 µ S/ cm
Calibration
See under Calibration
Removing a measuring cell
For easy access to the measuring cell, slacken the two screws that keep the electrical cabinet in
place. Remove the right-hand screw. Move the electrical cabinet to the left and rotate it forward.
Unscrew the measuring cell. The cables are long enough to allow the measuring cell to be
immersed in a vessel of calibration liquid.
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