Metrohm 914 pH / Conductometer - Manual (Page 52)

4.7 Menu dialogs
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pH Meter/Conductometer
￭ drift-dependent
The measured value will be applied when the value is stable according to the
drift criterion.
The drift thresholds are preset and cannot be changed:
– pH measurement: 0.028 pH/min
– Potential measurement U/mV: 1.875 mV/min
– Temperature measurement T/°C: 0.974 °C/min
For the conductivity, various drift thresholds are stored (depending on the
measuring range):
– 0.005 mS/cm/min up to 16 µS/cm
– 0.5 mS/cm/min between 16 µS/cm and 1 mS/cm
– 10 mS/cm/min for 1 mS/cm and higher
For instruments with two measuring channels, the primary measuring chan-
nel for the fulfillment of the drift criterion has to be selected.
– Primary channel
Selection dialog for selecting the measuring channel that has to fulfill
the drift criterion.
pH/mV or Cond.
Output date/time Selection dialog for selecting whether a time stamp is to be assigned to a mea-
sured value.
￭ on: Measured values contain a time stamp on the report.
￭ off: Measured values do not contain a time stamp on the report.
Default value: off
Output headers Selection dialog for selecting how the headers are output.
￭ once
￭ always: is the default setting
￭ off
Calibration data Selection dialog for selecting whether the main Calibration data is assigned for
the output of the measured values.
￭ on
￭ off: is the default setting
4.7.4 Sensors
The Sensors menu dialog is shown below with the structure and the
description.