Sensors that are not used need to be stored in a solution that guarantees that the sensor is ready for use. When the sensor is stored in pure water the salt will be washed out of the junction of the reference cell. This causes the sensor to fail.
Yokogawa uses the same salt concentration in the wet pocket (during shipment and storage) as is used inside the sensor. For combination sensors we add a trace of acid to keep the Glass membranes active. So, the best method is to keep the wet pocket that was shipped with the sensor and store the sensor in the wet pocket when not in use.
Buffer solutions are needed as an indispensable tool for maintaining an accurate pH measurement. Buffer solutions are used as references points for calibration and adjustment of pH measurements to compensate for aging and deterioration.
Liquid analyzers are used for monitoring process chemistry including water quality, providing process optimization and control.
pH electrodes and sensors are the sensing portions of a pH measurement. Various installation options including retractable, flow thru, immersion, and direct insertion. Proper pH electrode/sensor selection is critical for optimal measurement results.
Process analyzers are used to determine the chemical composition or physical properties of substances involved in industrial processes.