PHG-406 Online PH sensor

Used for environmental water quality monitoring, acid/alkali/salt solution, chemical reaction process and industrial production process, it can meet the requirements of online pH measurement for most industrial applications. Signal output: RS-485 (Modbus/RTU protocol). Convenient connection to third-party devices such as PLCs, DCS, industrial control computers, general-purpose controllers, paperless recording instruments or touch screens. Dual high-impedance differential amplifier with strong anti-interference and fast response. The patented pH probe, the internal reference solution oozes extremely slowly from the microporous salt bridge at 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. IP68 protection grade.

Product Parameters

Model PHG-206A
Measuring range 0~14pH
Resolution 0.01pH
Accuracy ±0.1pH,±0.3℃
Working temperature 0~65℃
Working pressure <0.2MPa
Temperature compensation Auto temperature compensation (NTC)
Power supply 12~24VDC
Signal output RS-485(Modbus/RTU)
Wetted material POM
Mounting method Immersion mounting, 3/4 NPT thread
Cable length 5 meters, other lengths can be customized
Calibration Two-point calibration
Power consumption 0.2W@12V
Protection grade IP68

Media Material