Metrohm 757 VA Computrace - Manual (Page 173)

8.4 Dosimat problems
757 VA Computrace – Software
163
Irreproducible standard additions with 765 Dosimat
1. Click on or
MAIN WINDOW / Utility / Dosimat control
to
open the DOSIMAT CONTROL window (see Dosimat control
window, section 6.2).
2. Select the desired Dosimat in the Burette field.
3. Click the button to empty and refill the exchange
unit installed on the Dosimat.
4. Check if there are air bubbles left in the glass cylinder of the
exchange unit. If this is the case, repeat the flushing proce-
dure by clicking the
button.
5. Close the DOSIMAT CONTROL window.
6. Check the Dose rate parameter on the Hardware tab. The
maximum dosing rate for use of the 6.1824.000 4-way mi-
crotip is 2.5 mL/min.
Wrong volume display with Dosimat
If the exchange unit at the Dosimat is changed without resetting
the Dosimat, the volume display during dispensing may be
wrong. Proceed as follows:
1. Switch off the Dosimat.
2. Close the
757 VA Computrace program.
3. Switch off the 757 VA Computrace Stand.
4. Switch on the Dosimat.
5. Switch on the 757 VA Computrace Stand.
6. Start the
757 VA Computrace program.