Xylem wtw CN 800 DIN, Operating Manual

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ba15356d04 12/2021
Conditioning, calibration, measurement CN 800
Combination
electrode CN 800
Conditioning, calibration, measurement
General
information
When operating the electrode ensure that

the filling opening (1) for the bridge electrolyte is open

the inner junctions (3) are covered with bridge electrolyte

no air bubbles are in the bridge electrolyte

the depth of immersion is within the optimum range:
Before measuring
1 Remove the storage vessel.
2 Fill the bridge electrolyte ELY/BR/503 into the filling opening.
3 Shortly press the shaft of the combination electrode against the con-
nection head to wet the ground junction with bridge electrolyte.
4 When doing so refill any spilled bridge electrolyte so that the inner
junctions are covered with bridge electrolyte.
5 Rinse the combination electrode with deionized water.
6 Wipe the shaft using a clean paper towel.
Minimum depth of im-
mersion The ground junction (4) must be covered
Maximum depth of im-
mersion Approx. 1 cm below the fluid level (2) of the
bridge electrolyte
1
2
3
4
1 Condition every ion sensitive electrode in standard solution before
using it.