Metrohm tiamo 2.3 (process analysis) - Manual (Page 1176)

5.6 Commands ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
1160 ￭￭￭￭￭￭￭￭ tiamo 2.3 (for Process Analysis)
Flow rate of a single dosing device
The cylinder volume and the filling time of the exchange or dosing unit
must be taken into account for the calculation of the effective flow rate.
Cylinder volume Max. flow rate
Exchange unit Dosing unit
1 mL approx. 80 mL/h ---
2 mL --- approx. 170 mL/h
5 mL approx. 400 mL/h approx. 430 mL/h
10 mL10 mL approx. 800 mL/h approx. 860 mL/h
20 mL approx. 1.6 L/h approx. 1.7 L/h
50 mL approx. 4.0 L/h approx. 4.3 L/h
Filling times
Filling times are not included in the calculation of the dosing rate. The fill-
ing times (including valve switching) can be estimated according to the
following formula:
Filling time in s = (max. filling rate/current filling rate) • t + 4 s
t = 20 s (for exchange units) or 18 s (for dosing units)
The maximum filling rate is dependent on the cylinder volume of the
exchange/dosing unit that has been put into use. The approximate filling
times (including valve switching) are given In the table below for various
cylinder volumes (exchange and dosing unit) at different filling rates: