Metrohm 900 Touch Control Manual - Manual (Page 464)

29.15 Dosing and Liquid Handling
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900 Touch Control
More parameters
Temperature
Temperature entered manually. The temperature is being continuously
measured when a temperature sensor is connected and when Temp.
measurement = automatic or continuous is defined (see sensor dialog
of the command). This value is used for temperature correction in pH
measurements.
Input range –20.0 - 150.0 °C
Default value 25.0 °C
Time interval MP
Time interval for entering a measuring point in the measuring point list.
The measuring point list is limited to 1000 measuring points.
Input range 0.1 - 999999.0 s
Default value 5.0 s
Pause
Waiting time, e.g. for the electrode to settle down after the start.
Input range 0 - 999999 s
Default value 0 s
Flow rate of a single dosing device
The cylinder volume and the filling time of the exchange unit or dosing
unit must be taken into account for the calculation of the effective flow
rate.
Table 18 Maximum flow rates for different cylinder volumes
Cylinder volume Maximum flow rate
Exchange unit Dosing unit
1 mL approx. 80 mL/h –
2 mL – approx. 180 mL/h
5 mL approx. 400 mL/h approx. 450 mL/h
10 mL approx. 800 mL/h approx. 900 mL/h
20 mL approx. 1.6 L/h approx. 1.8 L/h
50 mL approx. 4 L/h approx. 4.5 L/h
Filling times
Filling times are not included in the calculation of the dosing rate by the
Titrando. The filling times (including valve switching) can be estimated
according to the following formula: