The BRAG1-BNC from Chauvin Arnoux is a combined redox electrode specifically developed for measuring redox potential (ORP) in liquids. It integrates both the measuring electrode and the reference electrode in a single housing, ensuring a compact and easy-to-handle design. The electrode is used in laboratory and field applications where direct measurement of the solution's redox potential is required. The silver rod primarily serves for titrations and argentometric measurements, and the electrode connects to measuring instruments via a BNC connector.

Applications

The BRAG1-BNC is suitable for applications where oxidation-reduction potential measurement is important, such as in water analysis, the food industry, or chemical process monitoring. The electrode is designed for use in liquids that are not aggressive towards glass and metal materials. Measurement is performed by immersing the electrode into the solution to be tested, with the potential recorded in millivolts (mV).

Functions and Features in Detail

The electrode consists of a glass tube containing a drop of mercury and a drop of mercury sulfate (Hg₂SO₄) placed on a silver rod. This system forms the mercury sulfate reference electrode, filled with a saturated potassium sulfate solution (K₂SO₄). The reference electrode provides a constant reference potential, while the measuring electrode responds to electron activity in the solution. Combining both functions in a single housing enables efficient and precise measurement.

Technology Explained Simply

The BRAG1-BNC is a refillable electrode, allowing the electrolyte to be renewed or replaced as needed if contaminated. This extends the electrode's service life and ensures consistent measurement accuracy. The BNC connector enables a secure and standardized connection to measuring instruments that support this connector type. The electrode is designed for operating temperatures from 0 to 80 °C, enabling broad application in various environments.

Compatibility and Accessories

The electrode is equipped with a BNC plug compatible with corresponding measuring instruments. Suitable accessories, such as Pepsin/HCl solution (125 ml), can be used for specific applications or electrode maintenance. Combination with other electrodes or accessories should only be done based on the compatibilities listed in the manufacturer's catalog.

Installation and Mounting

Installation is performed by immersing the electrode into the liquid to be measured. The BNC connector is attached to the measuring instrument, ensuring a secure and firm connection to avoid measurement errors. The electrode requires no additional mounting aids or tools. Maintenance may include refilling the electrolyte, following the manufacturer's instructions.

Operational Advantages

The integration of measuring and reference electrodes in a single housing reduces the number of required components and simplifies handling. The refillable design allows for longer service life and improved measurement stability. The use of a silver rod provides high chemical stability and reliability for argentometric measurements. The operating temperature range of 0 to 80 °C makes the electrode suitable for a wide range of applications.