Metrohm 877 Titrino plus - Manual (Page 104)

7.3 pH calibration (CAL)
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877 Titrino plus
7.3 pH calibration (CAL)
7.3.1 Calibration parameters
Menu ▶ Parameters ▶ Calibration parameters
The parameters that influence the sequence of the entire calibration are
defined under Calibration parameters.
Signal drift
Maximum permissible drift for the measured value acceptance, i.e. maxi-
mum change of the measured value per minute.
Input range 0.1 - 999.0 mV/min
Default value 2.0 mV/min
Selection off
off
Measured value acceptance will take place after the maximum waiting
time has elapsed. This can be useful when the electrode is slow to
respond.
Min. waiting time
The measured value is not accepted until the minimum waiting time has
elapsed, even if the signal drift has already been reached. The minimum
waiting time is only important for drift-controlled measurements.
Input range 0 - 999999 s
Default value 10 s
Max. waiting time
If signal drift has been switched off or has not yet been reached, then the
measured value will be accepted when the maximum waiting time has
elapsed.
Input range 0 - 999999 s
Default value 110 s
Temperature
Manually entered calibration temperature. If a temperature sensor is con-
nected then the temperature will be measured continuously.
The temperature can also be entered during the run.
Input range –20.0 - 150.0 °C
Default value 25.0 °C