The XAG1-BNC is a redox indicator electrode from the manufacturer Chauvin Arnoux, specifically developed for measurements in the field of oxidation-reduction potential (ORP). It serves as a measuring electrode, also referred to as an indicator electrode, and responds to changes in the electron activity of a sample. The electrode consists of a glass rod, the lower end of which is fitted with a silver rod, and is housed in a robust PVC housing that prevents mechanical damage. Connection is made via a BNC connector, enabling a secure link to compatible measuring instruments. The silver electrode is particularly recommended for argentometric dosing and titrations, where the oxidizing or reducing power of a solution must be precisely detected.

Applications
The XAG1-BNC is used in applications where a separate measuring electrode is employed alongside a reference electrode (e.g. BR44). This is especially beneficial when the service life of the measuring electrode is significantly shorter than that of the reference electrode, optimizing maintenance and replacement frequency. The electrode is suitable for laboratory and field measurements, particularly in chemical analysis, water analysis, and process control, where precise ORP measurement is required.

Functions and Equipment in Detail
The electrode features a silver rod as the active measuring surface, which responds to changes in redox potential. The PVC housing protects the electrode body and enhances robustness against mechanical stress. The BNC connector enables a standardized, secure, and weather-resistant connection to measuring devices.

Technology Explained Simply
Redox measurement is performed by determining the potential difference between the measuring electrode (XAG1-BNC) and a reference electrode. The silver electrode reacts to electron activity in the sample, with the measured potential expressed in millivolts (mV). This measurement allows conclusions to be drawn about the oxidizing or reducing power of the solution. The use of a BNC connector ensures a reliable electrical connection, which is essential for precise measurement results.

Compatibility and Accessories
The XAG1-BNC is designed for use with reference electrodes such as the BR44. The combination of measuring electrode and reference electrode forms a complete measurement system for ORP analyses. The electrode is not suitable for pH measurements, as it does not feature a glass membrane for reacting to hydrogen ions. Use with other connector types (e.g. S7, DIN) is not intended, as the BNC connector is specifically designed for this electrode.

Mounting and Installation
Installation is carried out by directly connecting the BNC connector to the corresponding socket on the measuring device. The electrode is immersed into the liquid to be measured, ensuring the silver surface is fully in contact with the sample. Correct positioning and a clean electrode surface are crucial for measurement accuracy. The electrode is not designed for use in semi-solid media or under high mechanical stress.

Operational Advantages
The XAG1-BNC offers high robustness due to its PVC housing and is specifically suited for argentometric measurements. The separation of measuring electrode and reference electrode allows for more efficient maintenance, as only the rapidly wearing measuring electrode needs to be replaced. The BNC connection ensures a reliable electrical path, which is necessary for precise measurements in industrial and laboratory chemical applications. The electrode is designed for operating temperatures from 0 to 80 °C, enabling broad application in various environments.