Metrohm 900 Touch Control Manual - Manual (Page 92)

10.5 Limit values for the calibration data
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900 Touch Control
Upper limit
pH electrodes:
Input range
–999.9 - 999.9 %
Default value 101.0 %
ISE electrodes:
Input range
–999.9 - 999.9 mV
The default value depends on the charge of the ion:
–31.0 mV (–2), –61.0 mV (–1), 61.0 mV (+1), 31.0
mV (+2).
Monitoring pH(0)
on | off (Default value: off)
This parameter is only available with pH electrodes.
If this parameter is activated, then the electrode zero point pH(0) will be
monitored.
Lower limit
Input range –20.000 - 20.000
Default value 6.750
Upper limit
Input range –20.000 - 20.000
Default value 7.250
Monitoring E(0)
on | off (Default value: off)
This parameter is only available with ISE electrodes.
If this parameter is activated, then the electrode zero point E(0) will be
monitored.
Lower limit
Input range –2000.0 - 2000.0 mV
Default value –2000.0 mV
Upper limit
Input range –2000.0 - 2000.0 mV
Default value 2000.0 mV
Monitoring cell constant
on | off (Default value: off)
This parameter is only available for conductivity measuring cells.