wtw TriOxmatic 701, Operating Manual

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Contents
3
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Overall view of the D. O. probe TriOxmatic
®
701 . . . 5
1.2 Construction of the D. O. probe TriOxmatic
®
701 . . . 6
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 General safety instructions . . . . . . . . . . . . . . . . . . . . 8
3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Commissioning / Readiness for measuring . . . . . . . 11
3.3 Recommended fields of application . . . . . . . . . . . . 11
3.4 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.5 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.6 Exterior cleaning and function check . . . . . . . . . . . . 12
3.7 Cleaning with normal operation
(e.g. domestic sewage) . . . . . . . . . . . . . . . . . . . . . . 14
3.8 Storing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4 Maintenance, cleaning, disposal, spare parts 19
4.1 Replacing the electrolyte solution and membrane
head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2 Cleaning the electrodes . . . . . . . . . . . . . . . . . . . . . . 25
4.2.1
Cleaning the gold working electrode . . . . . . 27
4.2.2 Cleaning the silver counter electrode . . . . . 28
4.2.3 Cleaning the counter electrode using the RA
600 cleaning cap . . . . . . . . . . . . . . . . . . . . . 28
4.2.4 Cleaning the counter electrode in the glass
beaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.3 Refilling the membrane head . . . . . . . . . . . . . . . . . 36
4.4 Checking whether the probe is zero current free . . 39
4.5 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4.6 Maintenance and spare parts . . . . . . . . . . . . . . . . . 40
5 What to do if ... . . . . . . . . . . . . . . . . . . . . . . . . . 41
6 Recommended accessories . . . . . . . . . . . . . . 45