Combination electrode HANNA HI 1413B (glass)
Combination electrode HANNA HI 1413B (glass) HI 1413B is a combination pH electrode for surface measurements. HI 1413B is a glass pH electrode with one salt bridge, low temperature glass membrane and BNC connector. This electrode has an open diaphragm and a gel-like electrolyte “viskolen”, which does not contain silver chloride, which ensures interaction between the reference electrode and the measured sample. The open diaphragm is resistant to clogging and the flat membrane makes it ideal for measuring the pH of surfaces such as skin, paper. Low temperature glass Measuring pH at very high temperatures damages the sensitive glass membrane and shortens its life. A general purpose glass pH electrode has a resistance of 100 MΩ at 25 °C, while a LT glass has a resistance of approximately 50 MΩ at 25 °C. As the temperature of the glass in the sample decreases, the resistance of LT glass will approach that of general purpose glass. If general purpose glass was used, the resistance would decrease more slowly than optimal, resulting in lower impedance values and subsequently affecting measurements. The HI 1413B electrode is suitable for measuring samples in the range from 0 to 50 °C. Flat membrane The flat membrane is recommended for use when measuring the pH of flat surfaces such as skin, paper or samples into which the probe cannot be inserted Glass body The glass body is ideal for laboratory use. Glass is resistant to various aggressive environments and is easy to clean. The glass housing also facilitates rapid heat transfer to the internal reference electrode. The voltage generated by the reference electrode depends on temperature. The faster the electrode reaches equilibrium, the more stable the potential of the reference electrode. Open aperture Suspended solids and proteins found in food clog the ceramic diaphragm. Clogging interferes with the measurement circuit between the indicator and reference electrodes, resulting in slow response, data drift, and frequent electrode replacement. The open aperture design involves contact of the Ag/AgCl reference electrode with the sample through a solid gel (viskolen). This interaction prevents silver ions from entering the sample and does not cause clogging, resulting in fast response and data stability. BNC connector The HI 1413B uses a BNC connection. This is a universal connection that allows the electrode to be used on any pH meter with the same type of connection. Other types of connections are DIN, threaded, T-shaped and 3.5 mm. These types of connections are typically specific to a specific type of device and are not interchangeable. Manba: https://www.nv-lab.ru/catalog_info.php?ID=5851
- Parameter: Value
- Diameter, mm: Ø12
- pH range: 0 to 12
- Aperture/flow rate: open
- Case length / Total length, mm: 110 / 153.5
- Cable: coaxial; 1m (3.3’)
- Maximum pressure, bar: 0.1
- Case material: glass
- Application: emulsions, leather, paper, surfaces
- Connector: BNC
- Recommended temperature range, °C: 0 to +50 (32 to 122 °F)
- Matching contact: no
- Temperature sensor: no
- Amplifier: no
- Membrane shape: flat
- Digital: no
- Reference electrode: single, Ag/AgCl
- Electrolyte: viskolen