The XRPT1-BNC from Chauvin Arnoux is a redox combination electrode with a platinum wire as the measuring electrode and an silver/silver chloride reference system (Ag/AgCl), integrated into a single housing. It is designed for measuring redox potential (ORP) in liquids and is suitable for use in laboratories and in the field. The PVC housing provides mechanical protection and reduces the risk of breakage, making the electrode robust and durable. Connection is via a BNC connector, enabling a secure link to compatible measuring instruments.

Applications

The electrode is suitable for measuring oxidation-reduction potentials in various applications, particularly in process monitoring, the food industry, and laboratories. It is designed for liquid media and can be used in systems requiring continuous or discrete potential measurement. The refillable design with liquid electrolyte (KCl 1 mol/l) allows for maintenance and extended service life, as the electrolyte can be replaced when contaminated or depleted. The low concentration of KCl 1 mol/l reduces the risk of crystallization at the membrane and minimizes the risk of diaphragm contamination.

Functions and Features in Detail

The XRPT1-BNC is a single-stem measuring system, combining the measuring electrode and reference electrode in one housing. The measuring electrode consists of a platinum wire, an inert material suitable for redox measurements, as it does not participate in the reaction but only measures the potential. The reference electrode is based on the Ag/AgCl system, providing a stable reference potential. The diaphragm is made of ceramic, enabling controlled diffusion of the electrolyte while minimizing contamination. The electrode is designed for an operating temperature range of 0 to 80 °C, ensuring broad applicability in various environments.

Technology Explained Simply

Redox potential (ORP) measures a solution’s ability to accept or donate electrons. The XRPT1-BNC detects the electrical voltage difference between the platinum wire measuring electrode and the Ag/AgCl reference electrode. The result is displayed in millivolts (mV) and can be used to assess the oxidizing or reducing tendency of a solution. The refillable electrolyte chamber with KCl 1 mol/l ensures electrical conductivity is maintained, allowing the electrode to operate stably over a long period. The PVC casing protects the sensitive internal components from mechanical stress and chemical influences.

Compatibility and Accessories

The electrode is equipped with a BNC connector, compatible with many standard measuring instruments. Available accessories include KCl 1 mol/L solution 30 mL and Pepsin/HCl solution (125 mL), which can be used for maintenance and calibration of the electrode. These solutions support electrode care and help maintain measurement accuracy.

Mounting and Installation

The electrode is immersed directly into the liquid to be measured. The BNC connector is attached to the corresponding measuring device. The cable length is 1 meter, providing sufficient reach for laboratory or field use. No additional mounting aids are required; connection is made via the BNC connector.

Operational Advantages

The combination of refillable electrolyte, robust PVC housing, and integrated reference system ensures long service life and high reliability. The single-stem design simplifies handling and reduces the number of required components. The temperature resistance up to 80 °C expands the range of applications, and the use of KCl 1 mol/l minimizes maintenance effort and crystallization risks. The electrode is therefore suitable for continuous measurements in industrial and scientific applications.