What does annual calibration involve

To fully demonstrate that all components of the pH measuring system are functioning correctly, the following steps should be performed:

• Certified, traceable electrical simulators and standards should be used to verify that the pH meter is processing input signals correctly.
• The performance of the temperature probes should be compared to a certified reference thermometer.
• The pH meter and electrode should be calibrated using certified, traceable pH buffers.
• The correct performance of the pH electrode should be verified using certified, traceable control standards.

For most pH users it is not practical to purchase and maintain a certified traceable pH simulator, as it is expensive. Reagecon’s Technical Services Department can provide a calibration service to customers that meets all their requirements, be it Instrument Calibration or Validation.