Thermo Scientific Orion Star LogR™ Meter User Guide
66
Advanced Orion Star LogR Meter’s Electrode Diagnostics
change the sample used during the periodic testing process to match the
sample type normally measured during testing, and reference the data from the
new sample.
Cleaning
Dirt and deposits may accumulate on your electrode over time, hindering
performance. In addition to rinsing the electrode between samples and prior to
storage, inspect the electrode periodically for dirt and deposits. Thermo Scientific
Orion pH electrode cleaning solutions can be used to remove dirt and deposits
without causing damage to the electrode. Depending on your contaminant, select
the proper electrode cleaning solution from the table below and follow the steps
below.
Contaminant
Orion Catalog
Number
Description
Protein
900021
pH Electrode Cleaning Solution A
Bacteria
900022
pH Electrode Cleaning Solution B
General
900023
pH Electrode Cleaning Solution C
Oil and Grease
900024
pH Electrode Cleaning Solution D
Unknown / Varies
900020
pH Electrode Cleaning Solution Kit – Includes 1 x
30mL each of solutions A and C, and 1 x 60mL each of
solutions B and D
1. Shake the cleaning solution. Pour enough of the cleaning solution into the
beaker to cover the electrode junction and immerse the section of the electrode
that requires cleaning.
2. Soak the electrode for a few minutes in the cleaning solution while moderately
stirring the solution.
3. Remove the electrode from the cleaning solution and rinse the electrode
thoroughly with distilled water to remove all traces of the cleaning solution.
