Error Messages - Mettler Toledo SevenCompact S220 Mode D'emploi

8.4 E rror messages
Message
pH/mV/ion/temperature exceeds max.
lim i t
pH/mV/ion/temperature below min.
lim i t
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
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 con-
nect e d and placed in the sample solution.
Max. 1000 measurement data can be stored in the
mem o r y.
●
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
set t ings 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 t ings.
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
elec t rode.
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.
Maintenance 39