Error Messages - Mettler Toledo SevenCompact S210 Mode D'emploi

8.4 Error messages
Message
pH/mV/temperature exceeds max. limit
pH/mV/temperature below min. limit
Memory is full
Please calibrate electrode
Active sensor cannot be deleted
Wrong buffer
Slope out of range
Offset out of range
Standard temp. out of range
Buffer temp. out of range
Temperature differs from setting
®
ISM sensor communication error
36 Maintenance
Description and Resolution
Measurement limits are activated in the menu settings and
measured value is outside these limits.
● Check the sample.
●
Check sample temperature.
●
Make sure that the pH electrode wetting cap has been
removed and that the electrode is properly connected
and placed in the sample solution.
Max. 1000 measurement data can be stored in the memo­
ry.
● Delete all or partial data in the memory, otherwise you
will not be able to store new measurement data.
Calibration reminder has been switched on in the menu
settings and last calibration has expired.
● Calibrate the electrode.
Deleting the calibration data of the selected sensor ID is not
possible, because it is currently the active sensor ID in the
meter shown on the display.
● Enter new sensor ID in the menu settings.
● Select another sensor ID from the list in the menu set­
tings.
Meter cannot recognize the buffer or standard/buffer has
been used twice for calibration/two buffers differ less than
60 mV.
●
Make sure that you have the correct buffer and that it is
fresh.
● Make sure that the buffer has not been used more than
once during the calibration.
The calibration result is outside the following limits: Slope <
85% or > 110%, Offset < -60 mV or > + 60 mV.
●
Make sure that you have the correct buffer and that it is
fresh.
● Check mV signal of electrode, clean or replace the
electrode.
The ATC measured temperature is out of pH calibration
buffer range: 5 ... 50 °C.
●
Keep the buffer/standard temperature within the range.
● Change the temperature setting.
ATC measured temperature differs by more than 0.5°C from
the user-defined value/temperature range.
●
Keep the buffer/standard temperature within the range.
●
Change the temperature setting.
Data has not been transferred correctly between ISM
sor and meter. Reconnect the ISM
®
sen­
®
sensor and try again.