For environmental water quality monitoring, acid/alkali/salt solution, chemical reaction process, industrial production process, can meet the majority of industrial applications on-line pH measurement requirements.
2.Feature
Signal Output: RS-485(Modbus/RTU protocol).
Convenient to connect to PLC, DCS, Industrial Control Computer, General Controller, paperless recording instrument or touch screen and other third-party equipment.
Double high impedance Differential amplifier, strong anti-interference, fast response.
The patented pH probe, with an internal reference fluid at a pressure of at least 100 kpa (1 bar), oozes extremely slowly from the microporous salt bridge, with a forward exudation lasting more than 20 months. Such a reference system is very stable, electrode life than ordinary industrial electrode times longer.
Easy to install: submerged installation.
Ip68, protection level.
5.2 Electrical Connection
The cable is a 4-core twisted pair shielded wire defined in line sequence:
Red wire -- power cord (12V-24VDC)
Black line (GND)
Blue Line -- 485a
White line -- 485b
Before electrification, the wiring sequence should be carefully checked to avoid unnecessary losses caused by wiring errors.
Wiring instructions: Consider the cable long-term immersion in water (including seawater) or exposed to air, all wiring is required to do waterproof treatment, customer cable should have a certain anti-corrosion ability.