User manual

H70.0.21.6C-01 Operating Manual GMH 3511 page 12 of 14
10 Error and System Messages
Display Description What to do?
No display or
confused
characters,
device does not
react on keypress
Battery empty Replace battery
Mains operation: wrong voltage or polarity Check power supply, replace it when necessary
System error
Disconnect battery and power supplies, wait
shortly, then reconnect
Device defective Return to manufacturer for repair
Err.1
Measured value above allowable range Check: Measuring value not within sensor range?
-> measuring value to high!
Sensor defective Return to manufacturer for repair
Err.2
Measured value below allowable range Check: Measuring value not within sensor range?
-> measuring value to low!
Sensor defective Return to manufacturer for repair
Err.7
System error Return to manufacturer for repair
Value extremely out of measuring range Check: Value not within sensor range?
>CAL<
CAL flashing in
display
Either preset calibration interval has
expired or last calibration is not valid
Device has to be calibrated!
Neutral buffer not permissible
Wrong buffer solution Always use neutral buffer as first solution
Buffer solution defective Use new buffer solution
Electrode defective Clean electrode and calibrate again, if error occurs
again -> replace electrode
Slope is too low
Buffer solution defective Use new buffer solution
Electrode defective Replace electrode
Slope is too high
Buffer solution defective Use new buffer solution
Electrode defective Replace electrode
Incorrect calibration temperature Calibration can only be done at 0…60 °C
If “bAt” is flashing, the battery will be exhausted soon. Further measurements are possible for short time. If
“bAt” is displayed continuously the battery is ultimately exhausted and has to be replaced. Further
measurements aren’t possible any more.
11 Reshipment and Disposal
11.1 Reshipment
DANGER
All devices returned to the manufacturer have to be free of any residual of measuring media
and/or other hazardous substances. Measuring residuals at housing or sensor may be a risk for
persons or environment
Use an adequate transport package for reshipment, especially for fully functional devices.
Please make sure that the device is protected in the package by enough packing materials.
11.2 Disposal instructions
Batteries must not be disposed in the regular domestic waste but at the designated collecting
points.
The device must not be disposed in the unsorted municipal waste! Send the device directly to us
(sufficiently stamped), if it should be disposed. We will dispose the device appropriate and
environmentally sound.