pH monitoring and control in various industrial sectors:
- pH neutralization
- Wastewater discharge monitoring
- Cooling circuit (Ammonia detection NH₃)
- Electroplating / Galvanoplasty
- Decyanization / Cleansing

The accuracy of pH measurement depends on several factors: the pH meter, the electrode, the connecting cable and the buffer solutions used for calibration. Among these elements, the electrode remains the most crucial.

The glass pH electrodes presented here are combination electrodes, designed to ensure accurate measurement by incorporating a stable reference. They are compatible with all types of pH meters, making them easy to use in a wide range of measurement environments.

Reference system:
All electrodes use an Ag/AgCl system with a ceramic or PTFE diaphragm.

• Theoretical gain : The electrode produces approximately 58 mV per pH unit at a temperature of 20 °C.

pH combined electrodes:
Combination electrodes combine a measurement electrode and a reference electrode in a single unit. The measuring electrode is fully protected by the surrounding low-resistivity electrolyte of the reference electrode. The measuring part corresponds to the special pH glass bulb at the tip.

Installation:
To protect glass electrodes, they must be installed on suitable supports. The Pg 13.5 threaded connection provides a solid, watertight hold. Several mounting
options are available:
• Immersion mounting: for measurements in basins or tanks (doc 130-01, 135-01, 145-01).
• In-line installation: for measurements on piping (doc 140-01, 140-02, 141-01, 142-01).

Electrical connection :
To connect a pH electrode via a coaxial connector, a coaxial cable is required.
These cables ensure low-loss signal transmission and protection against electromagnetic interference, essential for accurate pH measurements. We recommend 9060 or 9061 cables and 9054 connectors (see datasheet 160-01).

Maintenance and care :
The pH electrode requires regular maintenance.
Calibration is crucial for reliable and accurate measurements.
For continuous measurements, the electrode must remain immersed. If not in use, proper storage is necessary to extend its lifespan.