RS-485 pH Probe AT-SB-PROBE-pH-P
Datasheet
1. Introduction
SENSBLUE pH POM AT-SB-PROBE-pH-P sensor is used in environmental water quality monitoring, acid/alkali/salt solutions, chemical reaction processes, and industrial production processes. It can meet the requirements of online pH measurement for most industrial applications.
2. Features
- Signal output: RS-485 (Modbus/RTU protocol).
- Convenient connection to third-party equipment such as PLCs, DCS, industrial control computers, general controllers, paperless recorders, or touch screens.
- Double high-impedance differential amplifier with strong anti-interference capability and fast response.
- The pH probe’s internal reference solution oozes very slowly from the microporous salt bridge under a pressure of at least 100 kPa (1 bar), and its forward bleed continues for more than 20 months. Such a reference system is very stable, and the electrode life is extended by a factor of two compared to conventional industrial electrodes.
- Easy to install: 3/4 NPT pipe thread for easy submersible installation or installation in pipes and tanks.
3. Technical Specifications
| Model | pH POM AT-SB-PROBE-pH-P |
| Measuring Range | 0～14pH |
| Accuracy | ±0.1pH |
| Resolution | 0.01pH |
| Temperature Range | 0 ~65℃ |
| Work Pressure | ＜0.2MPa |
| Temperature Compensation | automatic temperature compensation |
| Output | RS-485, MODBUS protocol |
| Power Supply | 12～24VDC ±10% |
| Wetted Part Material | POM |
| Installation | Immersion mounting, 3/4 NPT thread |
| Cable Length | 5 m, customizable |
| Calibration Method | Two-point calibration |
| Power Consumption | ＜0.3W@12V |
| Ip Grade | IP68 |