Check the stirring, Check the mme, Check therde – Metrohm 797 VA Computrace User Manual
Page 266: Perform a linearity test with the dummy cell

8 How to ...?
797 VA Computrace – Software
254
Check the stirring
1. Click on
or
MAIN WINDOW
/ Utility / Computrace control
to open the
COMPUTRACE CONTROL
window.
2. Select
HMDE
and click on
.
3. Change the rotational speed by clicking on the
buttons of
the
RDE/stirrer speed
field.
Check the MME
1. Install the MME at the 797 VA Computrace stand (see Hardwa-
re Manual).
2. Click on
or
MAIN WINDOW
/ Utility / Computrace control
to open the
COMPUTRACE CONTROL
window.
3. Select
DME
,
SMDE
or
HMDE
and click on
.
4. Choose Multi-Mode Electrode (
MME
).
5. Fill the measuring vessel with the specified solution.
6. Press
the
button.
Check theRDE
1. Install the RDE at the 797 VA Computrace stand (see Hardware
Manual).
2. Click on
or
MAIN WINDOW
/ Utility / Computrace control
to open the
COMPUTRACE CONTROL
window.
3. Select
RDE/SSE
and click on
.
4. Choose
RDE/SSE
.
5. Fill the measuring vessel with the specified solution.
6. Press
the
button.
Perform a linearity test with the dummy cell
For testing the linearity of current measurement, the dummy cell of
the 797 VA Computrace stand is used with the test method
Test797_L.mth
. Proceed as follows:
1. Click on
or
MAIN WINDOW
/ Mode / Determination
.
2. Click on
or
MAIN WINDOW
/ Window / Working method
specification
to open the
WORKING METHOD SPECIFICATIONS
window.
3. Click on
or
MAIN WINDOW
/ File / Load method
.