Owner's manual

2 Installation

797 VA Computrace / Hardware-Manual 8.797.8001EN

1 Fill gas wash bottle

• Unscrew gas wash bottle 6 from measuring head arm 23.

• Fill gas wash bottle half full with dist. H

O (for long-term measurements

with supporting electrolytes such as Acetic acid / Acetate buffer or Ammo-

nia / Ammonium chloride buffer, fill with supporting electrolyte; for meas-

urements in organic solvents fill with the used solvent).

• Screw gas wash bottle back on measuring head arm.

2 Connect inert gas supply

• Attach one end of 6.1801.080 PVC tubing to connection 11 of the 797 VA

Computrace Stand.

• Attach the other end of the 6.1801.080 PVC tubing to connection of the

inert gas bottle.

• Set inert gas pressure at gas bottle using the reducing valve to

p = 1 ± 0.2 bar.

• Open gas supply line at gas bottle.

3 Connect inert gas lead-off (option)

• Attach a length of suitable tubing (e.g. Metrohm 6.1805.030, length

150 cm) to connection

9 for inert gas lead-off.

• Route the other end of the lead-off tubing to a fume cupboard.