7 stirrer – Metrohm 757 VA Computrace User Manual
Page 43
3.7 Stirrer
757 VA Computrace – Hardware
39
39
112
115
116
117
112
113
114
Fig. 14: Construction of the auxiliary electrode
3.7 Stirrer
The complete stirrer comprises two parts (see also Fig. 4):
• 6.1246.010 Drive shaft (24)
• 6.1204.090 Stirrer tip (42)
The startup procedure for the stirrer is as follows:
1 Assemble stirrer
• Screw stirrer tip 42 firmly to drive shaft 24.
2 Insert stirrer in 757 VA Computrace Stand and connect
• Insert complete stirrer in opening 60 of the measuring head 20 as far as it
will go (see Fig. 6).
• Stretch drive belt 28 between drive wheel 31 and drive shaft 24 of the
stirrer (see Fig. 6).
39 Auxiliary electrode
112 Electrical connection for
cable "AE"
113 Pt Auxiliary electrode
(6.0343.000)
114 Pt tip
(permanently attached)
115 Electrode holder
(6.1241.020)
116 Locking ring
117 Glassy carbon tip
(6.1247.000)