Metrohm 900 Touch Control Manual - Manual (Page 393)

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29 Parameters
900 Touch Control
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Switch off automatically
on | off (Default value: on)
If this parameter is activated, the stirrer will be switched off automatically
at the end of the titration, measurement, etc.
29.9 Measurements (MEAS)
29.9.1 Measuring parameters
Under [Measuring parameters], the parameters influencing the
sequence of the entire measurement are defined.
Signal drift
Maximum permissible drift for the measured value acceptance, i.e. maxi-
mum change of the measured value per minute. For this value, a suitable
maximum waiting time is automatically calculated except you already have
modified this waiting time.
NOTE
A constant measured value is often only reached after a certain time, as
mixing and the reaction itself require a certain time. The response time
of an electrode can also increase with time, i.e. reaching a constant
measured value takes longer and longer. Drift-controlled measured
value acceptance is particularly advisable in such cases, as the measured
values are only accepted when equilibrium has almost been reached.
Measuring mode pH, U, Ipol and Conc:
Input range
0.1 - 999.0 mV/min
Default value 10.0 mV/min
Selection off
off
Measured value acceptance will take place after the maximum waiting
time has elapsed.
Measuring mode Upol:
Input range
0.01 - 99.90 µA/min
Default value 10.00 µA/min
Selection off
off
Measured value acceptance will take place after the maximum waiting
time has elapsed.