Calibration Solution Ph 7.0

Cyco Calibration Solution pH 7.0

The most common reasons for pH meter error is dry storage of the electrode and electrode contamination. These cause loss of accuracy, reduced performance and slower response times.

Thoroughly clean the electrode after use and always store your pH meter with the cap firmly in place. Frequency of meter calibration is crucial and will optimise your pH meter’s performance.

Performing a Two Point Calibration

Step 01: Turn the pH meter on and enter the calibration mode on the pH meter.

Step 02: Select your pH buffers that bracket the expected sample pH. The first buffer should be Cyco Calibration Solution pH 7.0 (your neutral/zero point) and the second buffer should be near the expected sample, in this case Cyco Calibration Solution pH 4.0.

Step 03: Before starting calibration, be sure the sensor and the buffer solution are at the same temperature. If not, allow time for temperature equilibration. 

Step 04: Pour the necessary amount of Cyco Calibration Solution pH 7.0 and Cyco Calibration Solution pH 4.0buffer solutions into individual glass beakers.

Buffer solutions will remain stable in a glass beaker for a maximum of 2 hours. (Please note: Never carry out calibrations in the bottle of buffer solution as this will taint your solution and significantly reduce accuracy and do not pour used solutions back into the bottle, discard them and use new solution each calibration.)

Step 05: Place the electrode into the pH7 solution you have decanted. When the reading is stable, set the pH meter to the pH7 value.

Step 06: Remove your electrode and rinse it with distilled water

Step 07: Place the electrode into the pH4 solution you have decanted. When the reading is stable, set the pH meter to the pH4 value.

When the pH meter calibration is done, rinse the electrode and place into the sample and take your pH measurement.