Xylem wtw NO 800 DIN, Operating Manual

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ba15362d04 12/2021
Commissioning NO 800
Commissioning
Combination elec-
trode NO 800
Conditioning, calibration, measurement
General informa-
tion
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 ELY/BR/503/N bridge electrolyte into the filling opening so that
the inner junctions are covered with bridge electrolyte.
3 Rinse the combination electrode with deionized water.
4 Wipe the shaft using a clean paper towel.
Minimum depth of
immersion The outer junction (4) must be covered
Maximum depth of
immersion 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.