Electrode Preparation - Thermo Scientific 9101BN User Manual

Electrode Preparation

Electrode Preparation for Non-Sure-Flow
1. Remove the protective shipping cap from the sensing
element and save the cap for storage.
2. Clean any salt deposits from the exterior of the electrode by
rinsing with distilled water.
3. Uncover the filling hole by removing the tape and then add
electrode filling solution, Cat. No. 900011, to the electrode.
To maintain an adequate flow rate, the level of filling
solution must always be above the reference junction and
at least one inch above the sample level. The filling hole
should be open whenever the electrode is in use.
4. Place the electrode in an electrode holder and suspend
the electrode in air for 5 minutes to thoroughly wet the
reference junction.
5. Shake the electrode downward (similar to a clinical
thermometer) to remove air bubbles.
6. Soak electrode in pH electrode storage solution, Cat. No.
910001, for 30 to 60 minutes.
7 . Connect the electrode to the meter.
filling hole
Ag/AgCl
internal
reference
pH
sensing
bulb
Refillable Ag/AgCl Combination pH Electrode
6
fill hole
filling
solution
chamber
ceramic
reference
junction
Refillable Ag/AgCl pH Electrode User Guide
Models
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