General
Peak diameter	6,5 mm

The BRV4H-BNC is a pH single-junction probe from the manufacturer Chauvin Arnoux, specifically designed for measurement in small sample volumes. It features a glass body and a microtip with a diameter of 6.5 mm, enabling precise and spatially limited measurement. The probe head is equipped with a ceramic junction, ensuring reliable and uniform electrolyte distribution. At the end of the electrode, there is a BNC connector, allowing compatible connection to pH measuring devices with the corresponding interface. The combination of compact design and high measurement accuracy makes this electrode particularly suitable for applications where only small sample quantities are available, such as in laboratory analysis, process monitoring, or quality control in the food industry.

Applications
The BRV4H-BNC is suitable for applications requiring small sample volume capacity, for example in microreactors, small sample tubes, or when measuring in confined spaces. The microtip with a 6.5 mm diameter enables targeted measurement without affecting the entire sample. The electrode is frequently used in chemical analysis, pharmaceutical development, or environmental analysis, where high spatial resolution of the measurement is required. Use in small volumes reduces sample consumption and enables more efficient process management.

Functions and Equipment in Detail
The electrode features a glass body that protects the pH-sensitive membrane and simultaneously forms a stable chemical barrier. The ceramic junction ensures continuous and uniform diffusion of the electrolyte, contributing to constant and reproducible measurement signal quality. The microtip with a diameter of 6.5 mm allows precise positioning of the measurement point, enabling local pH conditions to be detected. The BNC connector at the end of the electrode ensures a mechanically stable and electrically reliable connection to compatible pH measuring devices.

Technology Explained Simply
The BRV4H-BNC operates on the principle of a pH single-junction probe, where the reference electrode and measuring electrode are integrated into a single housing. The glass body membrane reacts to the pH value of the sample, with the voltage difference between the measuring and reference electrodes being measured. The ceramic junction serves as an ion exchange point, enabling contact between the electrode and the sample. The microtip reduces the contact surface, allowing localized measurement. The BNC connector is a standard in measurement technology and ensures a secure and vibration-free electrical connection.

Compatibility and Accessories
The electrode is equipped with a BNC connector, compatible with pH measuring devices that have a corresponding input. It is used directly with pH measuring devices supporting a BNC connection.

Mounting and Installation
The BRV4H-BNC is directly immersed into the sample to be measured. No additional mounting or installation steps are required. The electrode is designed for direct use, with the positioning of the microtip within the sample space being critical for measurement accuracy. Connection to the measuring device is made via the BNC connector, which is inserted into the corresponding input of the device.

Operational Advantages
The BRV4H-BNC offers high spatial resolution through the microtip, which is particularly advantageous when examining heterogeneous samples or measuring in confined spaces. The combination of glass body and ceramic junction ensures stable and reproducible measurements. The compact design reduces sample consumption and enables efficient use in applications with limited sample quantities. The use of a BNC connector ensures universal compatibility with standard measuring devices.