Model WQC-30 9.5 Replacement of each part of pH electrodes
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193
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③ Supply new internal solution …… Fill in the new internal solution of the reference
electrode gel from the inlet using the syringe with a nozzle to prevent air bubbles. Tighten the
inlet cap firmly after filling it up.
【
IMPORTANT
】
•
If any air bubbles are formed, tilt the sensor module to collect the ai
bubbles near the inlet and pour in the internal solution of the reference
electrode gel to push them out.
•
Insert only the tip of nozzle in the inlet and do not push the syringe
against the inlet.
(2) Replacement of the liquid junction section
If the liquid junction section becomes dirty or discolored, replace it. (Code No.: 6784580K)
【
IMPORTANT
】
•
The new liquid junction section is dry. After replacing the liquid
junction section, soak the electrode in the calibration beaker filled with
tap water up to the line L for 24 hours.
Protective cover
Liquid junction section
(No. 6784580K)
Sensor module
Calibration beaker
Water
(Tap water)
<Use after immersing in water for 24 hours>
pH
electrode
Fill the water
up to this level.
Replacement of the liquid junction section
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