I. Overview
1. The S400 series is specifically designed by BJC Company for online pH detection in harsh industrial processes. It features a robust structure, a dual-stage reference electrode design, and strong resistance to contamination. The electrode comes with a threaded connection for flexible installation; the body material is corrosion-resistant Ryton (PPS); and the reference diaphragm is made of porous Teflon or ceramic. Users can choose pH electrodes with a temperature probe or with a glass head protector to prevent breaking the glass film. ORP electrodes are also available.
II. Technical Specifications
1. pH Range: 0 ~ 14 pH
2. ORP Range: ±5000 mV
3. Temperature Range: 0 ~ 105℃
4. Pressure Resistance: 150 psig at 100°C
5. Reference Electrode: Ag/AgCl
6. Liquid Connect Material: BJC's Ryton, Teflon, Glass
7. Standard Cable Length: 10 feet Low Noise Cable
8. Application: Online Water and Wastewater Testing
9. Installation Methods: Immersion and Pipeline Mounting
10. Output Impedance < 250 MΩ at 25°C
11. Liquid Connector Material - BJC's Ryton, Teflon, Glass
12. Reference Diaphragm - Coaxial circular Teflon diaphragm, resistant to contamination, large surface area, double-stage design, less prone to poisoning
Non-mixed insertion electrode

In-line installation PH electrode with a mixing station:
Two-wire transformer





































