Endress+Hauser Oxymax COS22D, Руководство по эксплуатации

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Oxymax COS22D Trouble-shooting
Hauser
31
9 Trouble-shooting
9.1 Trouble-shooting instructions
If any of the following problems occur, test the measuring device as indicated.
Make sure you comply with the instructions for troubleshooting in the Operating Instructions of
the transmitter. If necessary, carry out a test of the transmitter.
Problem Check Remedial action
No display, no
sensor reaction
Mains voltage to the transmitter? Connect mains voltage.
Sensor connected correctly? Set up correct connection.
Medium flow available? Create flow.
Coating on the membrane? Clean the sensor.
Electrolyte in the measuring chamber? Fill with electrolyte or replace electrolyte.
Displayed value too
high
Polarization complete? Wait until polarization time ends.
Sensor calibrated? Recalibrate
Temperature display clearly too low? Check sensor, if necessary send
sensor in for repair.
Membrane visibly stretched? Replace membrane cap.
Electrolyte soiled? Replace electrolyte.
Open sensor. Dry electrodes. Transmitter
display now at 0? Check electrical connection. If the problem still
occurs, send the sensor in.
Displayed value too
low
Sensor calibrated? Recalibrate
Medium flow available? Create flow.
Displayesd temperature clearly too high? Check sensor, if necessary send
sensor in for repair.
Coating on the membrane? Clean membrane or replace membrane cap.
Electrolyte soiled? Replace electrolyte.
Strong deviations in
displayed value
Membrane visibly stretched? Replace membrane cap.
Open sensor. Dry electrodes transmitter
display now at 0? Check electrical connection. If the problem still
occurs, send the sensor in.