W3T331759 / WT.050.585.003.UE.IM.1014
32
MICRO/2000® AND DEOX/2000® MODULE
3.2.1.4 Probe installation
The probe should be installed in the analyser after the rest of the analyser
installation (mounting, plumbing, wiring) is completed and inspected.
CAUTION:
Do not fill the probe with electrolyte until immediately before
it is installed in the analyser. Once the probe is filled with electrolyte, the
electrode end must be kept wetted, as it is when installed in the analyser. If
the probe is filled and the porous element is allowed to dry, the pores will
clog with potassium chloride crystals.
Fill the probe (through the fill hole in the side of the probe body) with
electrolyte. Fill only to a level just below the fill hole when the probe is
upright. The hole plug is not watertight.
Remove the protective cap from the electrode end of the probe. Check
that the electrodes are clean; wipe clean with a paper towel if necessary.
Do not touch the electrodes (platinum elements) or the porous element
(white element), as finger dirt or oil may impede the probe operation.
The platinum material is thin and easily punctured or sheared off. The
electrodes are not repairable.
Allow the probe to stand upright (or hang it by its cord) for about
ten minutes until electrolyte emerges from the porous element. If the
electrolyte does not emerge shortly, it can be forced through the porous
element by pressurizing the reservoir with a rubber squeeze bulb - used
to force air into the fill hole. Use a sharp blade or a pointed object to cut
a small vent hole in filling hole plug, enough to allow air through and
equalize to atmospheric pressure on both sides of the plug. Replace the
hole plug to prevent evaporation of the electrolyte.
Connect cable to input module.
3.2.2 Temperature measurement
The IC board of SFC has a temperature measurement for connecting a
PT 1000 sensor (multi-sensor). This temperature measurement is used for
temperature compensation of the "DES" module and pH measurement. The
temperature is shown on the main display and can be calibrated if necessary.
The measuring range is 0 – 50 °C. The unit may be adjusted to °F.
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