Metrohm tiamo 2.4 Manual - Manual (Page 880)

5.6 Commands
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864 ￭￭￭￭￭￭￭￭
tiamo 2.4
However, in order to ensure uninterrupted dosing, the following points
must be taken into account:
￭ Keeping filling times short
Use the highest possible filling rate in order to keep the filling times as
short as possible. Take the viscosity and density of the liquid into
account.
￭ Filling rate with different cylinders
When you use two dosing devices with different cylinder volumes (dos-
ing cylinder 2 > dosing cylinder 1), then the minimum filling rate of the
larger cylinder 2 must be:
Filling rate 2
≧ dosing rate 1 • (V
dosing cylinder 2
/ V
dosing cylinder 1
)
￭ Rule for dosing rate
The dosing rate must not exceed 75% of the filling rate of the smaller
cylinder. This corresponds to the following values (at maximum filling
rate):
Cylin-
der vol-
ume
maximum 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
5.6.3.8.6 STAT pH
5.6.3.8.6.1 STAT pH - Overview
Dialog window: Method ▶ STAT pH ▶ Properties... ▶ STAT pH - 'Command name'
Command for STAT titrations with measured value pH.
Devices
This command can be executed with the following instruments: