Metrohm 746 VA Trace Analyzer User Manual
Page 55
3 Installation
746 VA Trace Analyzer / 747 VA Stand
3-28
55
55
56
56
57
57
58
58
37
37
51
51 119
119
49
49
52
52
59
59 121
121 120
120
25
25
60
60
40
40
41
41
60
60
Fig. 16: Measuring head arm with rotating disk electrode (RDE)
25
25
Stopper (6.2709.080)
to close the pipetting opening
37
37
Electrode cable ”WE”
connection for working electr. (RDE)
40
40
Measuring head arm
carrier plate with permanently attached
measuring head, raisable
41
41
Measuring head
measuring vessel upper half made of
PTFE; with openings for electrodes,
stirrer, gas and liquid supply lines
49
49
Drive belt (6.1244.020)
connection between drive wheel 52
52
and drive shaft 121
121
51
51
FEP tubing (6.1805.180)
52
52
Drive wheel of drive motor
56
56
FEP tubing (6.1805.090)
for inert gas lead-off (attached)
57
57
FEP tubing (6.1805.180)
for inert gas supply to tapping mecha-
nism (attached)
58
58
Electrode cable ”AE”
connection for auxiliary electrode 60
60
59
59
FEP tubing (6.1805.180)
60
60
Auxiliary electrode
details, see section 3.7
119
119
Stopper (6.2709.040)
for closing the MME opening and to
accommodate the two lengths of FEP
tubing 51
51 and 59
59
120
120
Electrode tip (6.1204.XXX)
together with drive shaft 121
121 forms the
RDE
121
121
Drive shaft (6.1246.000)
together with electrode tip 120
120 forms
the RDE