E+H Orbisint CPS11D Digital pH Electrode Overview
The E+H Orbisint CPS11D digital electrode is designed for process control and environmental monitoring, and can be stably applied in strong alkali media and various hazardous working conditions. This electrode combines long service life, low maintenance cost, and high cost-effectiveness, and is widely used in industries such as chemicals, power, waste treatment, papermaking, and water treatment.
Core Advantages
The core advantages of this electrode are reflected in the following six aspects:
- Large-area anti-fouling PTFE annular diaphragm: Sturdy and durable structure, with a long toxic diffusion path design that greatly reduces maintenance workload.
- Resistant to harsh working conditions: The process glass can withstand strong alkali corrosion and achieve stable measurement at pressures not exceeding 16 bar (232 psi).
- Reduced downtime: Extends electrode service life and lowers overall operating costs.
- Optional salt ring component: Meets the measurement needs of low-conductivity media such as boiler feedwater and water for injection.
- Non-contact inductive signal transmission: Significantly improves process measurement safety.
- Parameter storage function: Supports storage of sensor and process parameters, facilitating predictive maintenance and ensuring continuous system operation.
Measurement Principle
pH value is a core indicator for measuring the acidity and alkalinity of liquid media. When the electrode glass membrane contacts the measured medium, an electrochemical potential related to the pH value of the medium is generated. This potential originates from the selective permeation of hydrogen ions (H⁺) through the outer layer of the glass membrane, forming an electrochemical boundary layer potential on the membrane surface; the built-in Ag/AgCl reference system provides a stable reference potential. The accompanying transmitter converts the voltage signal into a pH value according to the Nernst equation (NERNST).
Product Series
E+H digital pH electrodes have a rich conventional product series, specifically including:
CPS11D, CPS11E, CPS41D, CPS71D, CPS91D, CPS171D, CPS16D, CPS11, CPS12D, CPS31D, CPS72D, CPF81D, CPS76D, CPS92D, CPS77E, CPS31E, CPS12E, CPS41E, CPS96D, CPS42D, CPS91E, CPS61E, CPS341D, CPS16E, CPS91, CPS71, CPS31, CPS12, CPS41, CPS97D, CPS77D, CPS441D, CPS491D, CPS471D, CPS47D, and other models.
CPS11D Model Selection Guide
Taking the CPS11D digital pH electrode as an example, the measurement ranges and suitable scenarios of different models are as follows:
| Model | Application Scenario | pH Measurement Range | Temperature Tolerance Range |
|---|---|---|---|
| FA type | Hydrofluoric acid process measurement | 0–10 | 0–70℃ (32–158℉) |
| BT type | Chemicals, detergents, pulp and paper (equipped with ion trap) | 0–14 | 0–135℃ (32–275℉) |
| AA type | Water/wastewater treatment | 1–12 | -15–80℃ (5–176℉) |
| AS type | Boiler feedwater | 1–12 | -15–80℃ (5–176℉) |
| BA type | General process measurement | 0–14 | 0–135℃ (32–275℉) |
E+H Product System and Market Positioning
pH electrodes are only part of the E+H product matrix; its product system also covers pressure detection, optical analysis, flow detection, system software, temperature detection, and many other fields. With comprehensive and professional automation measurement solutions, E+H has become one of the few companies in the industrial automation field that combines both specialized depth and product breadth. Its main market competitors include Siemens, ABB, Yokogawa, Emerson, etc.
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