Metrohm 757 VA Computrace Manual de usuario descargar pdf (Pagina 166)

7 How to ...?

757 VA Computrace – Software

156

7.9 Diagnostic procedures

Check the purging

1. Connect the inert gas to the 757 VA Computrace Stand (see

Hardware Manual).

2. Make sure that the inert gas pressure is 1 ± 0.2 bar.

3. Add 20 mL ultrapure water to the empty measuring vessel at

the 757 VA Computrace Stand.

4. Click on or

MAIN WINDOW

/ Utility / Computrace control

open the

COMPUTRACE CONTROL

window.

5. Select

HMDE

and click on .

6. Make sure that inert gas bubbles are purging through the so-

lution.

Check the stirring

1. Click on or

MAIN WINDOW

/ Utility / Computrace control

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 757 VA Computrace Stand (see Hard-

ware Manual).

2. Make sure that the inert gas pressure is 1 ± 0.2 bar.

3. Add 10 mL ultrapure water to the empty measuring vessel at

the 757 VA Computrace Stand.

4. Add 0.25 mL potassium chloride c(KCl) = 1 g/L (Metrohm

No. 6.2308.020) to the measuring vessel.

5. Click on or

MAIN WINDOW

/ Utility / Computrace control

open the

COMPUTRACE CONTROL

window.

6. Select

DME

and click on .

7. Mercury flows out of the capillary. The typical natural drop

time is in the range of 1 - 5 sec. If the natural drop time is

smaller than 0.5 sec, change the capillary and/or needle at

the MME (see Hardware Manual).

1 2 ... 161 162 163 164 165 166 167 168 169 170 171 ... 197 198

Comentarios a estos manuales

Sin comentarios

Metrohm 757 VA Computrace Manual de usuario Pagina 166

Comentarios a estos manuales

Relacionado con productos y manuales para Software Metrohm 757 VA Computrace