Sensorex Corporation Combination Electrode S510C/CD-ORP

Remove the electrode from the soaker bottle by rotating cap counterclockwise and pulling electrode upward.

Rinse the electrode with de-ionized or tap water by carefully stirring it in a beaker containing this rinse solution.

Remove the electrode and wipe dry with a soft paper or cloth towel.

Pour REDOX Calibration Standard solution into a small beaker to about a 3/8” (1cm) depth.

Insert the electrode into the solution and gently stir taking care not to allow the end of the electrode to hit the beaker.

Allow the reading to stabilize and compare it to the standard solution’s value.

Do the readings agree within 10-15% of the solution's stated value?

Ensure all cleaning materials are available

Remove soft coatings using a squirt bottle or soft cloth

Hard Coating or Organic Chemical Removal

Use 5% HCl to remove hard coatings or organic chemicals

Is mechanical cleaning required?

Remove the electrode from its soaker bottle and save the bottle.

Vigorously stir the electrode in a rinse solution.

Shake the electrode with a snap action to remove residual drops of solution.

Vigorously stir the electrode in the buffer or sample and allow the electrode to rest against the beaker's wall.

Allow the reading to stabilize and then take the reading.

Repeat these steps for each sample or buffer determination.

Calibration Frequency and Technique