Metrohm 797 VA Computrace - Manual (Page 24)

2 Installation
797 VA Computrace / Hardware-Manual 8.797.8001EN
16
55 Threaded opening
for dummy stopper 45 (6.1446.040)
56 Threaded opening
for dummy stopper 44 (6.1446.040)
57 Pipetting opening
for the manual addition of solutions,
closed with stopper 4 (6.2709.080)
58 Opening
in operation with MME:
for Multi-Mode Electrode 21
(6.1246.020)
in operation with RDE:
for 6.2709.040 Stopper
59 Threaded opening
for FEP tubing 22 (6.1805.180, already
permanently attached); inert gas supply
to measuring vessel 7
60 Threaded opening
for dummy stopper 25 (6.1446.040)
61 Opening
for reference electrode 26 (Ag/AgCl
reference system and 6.1245.010
Electrolyte vessel)
62 Threaded opening
for nipple 27 (6.2730.030) with dummy
stopper or 4-way microtip 30
(6.1824.000)
63 Opening
in operation with MME:
for stirrer 28 (6.1204.200)
in operation with RDE:
for rotating disk electrode, comprising
drive shaft 99 (6.1204.210) and elec-
trode tip 98 (6.1204.XXX)
64 Threaded opening
for FEP tubing 40 ((6.1805.180, already
permanently attached); inert gas supply
for tapping mechanism
65 Threaded opening
for FEP tubing 39 (6.1805.090, already
perm. attached); inert gas lead-off
66 Threaded opening
for FEP tubing 22 (6.1805.180, already
permanently attached); inert gas supply
from gas wash bottle 6 to measuring
vessel 7
67 Threaded opening
for FEP tubing 36 (6.1805.040, already
permanently attached); inert gas supply
to gas wash bottle 6
68 Opening
for feed-through of tubing connections
of 4-way microtip 30 (6.1824.000)
69 Threaded opening
for FEP tubing (6.1805.180); optional
waste solution lead-off
70 Threaded opening
for FEP tubing 38 (6.1805.090, already
permanently attached); optional waste
solution supply from gas wash bottle to
waste
5 Install reference electrode
• Insert reference electrode 26 in opening 61.
• Attach electrode cable 31 (RE) to reference electrode: push cable lug
under the screw and then tighten screw firmly.
• Turn reference electrode so that the electrode cable points to the rear and
not to the side (in the latter position it may become kinked and damaged
when cover 2 is closed).