Metrohm 840 PC Control 5.0 / Touch Control - Manual (Page 237)

4 Parameters
PC Control / Touch Control
225
Cylinder volume Max. dosing rate Max. flow rate
Exchange unit Dosing unit Exchange unit Dosing unit
1 mL 2.25 mL/min --- approx. 130 mL/h ---
2 mL --- 5.00 mL/min --- approx. 300 mL/h
5 mL 11.25 mL/min 12.50 mL/min approx. 670 mL/h approx. 750 mL/h
10 mL 22.50 mL/min 25.00 mL/min approx. 1.3 L/h approx. 1.5 L/h
20 mL 45.00 mL/min 50.00 mL/min approx. 2.7 L/h approx. 3.0 L/h
50 mL 112.50 mL/min 124.50 mL/min approx. 6.7 L/h approx. 7.5 L/h
The dosing rate corresponds to the flow rate for continuous dosing.
The parameters for the stirrer are edited under Stirrer:
• Stirrer (d): Selects the stirrer to be used in the titration (or meas-
urement, calibration, dosing). All the stirrer connections (MSB) will
always be shown.
• Stirring rate (d): You can check the optimal stirring rate manu-
ally (see Section 3.24.3). The stirring direction changes as the sign
changes. The default setting 8 corresponds to 1000 rpm (see Fig.
4.14 ).
• Switch off automatically (d): This function is used to switch off
the stirrer automatically at the end of the titration (or measurement,
calibration, dosing).
Speed/min
Stirring rate
2000
1500
1000
500
0
-15 -10 -5
-500
-1000
-1500
-2000
0 5 10 15
Fig. 4.14: Setting the stirring rate and speed