PH Analyzer RS485
MTWPH5000 PH Analyzer RS485 is an industrial online intelligent instrument for continuous pH and ORP measurement and control. It adopts high-precision signal processing circuit, with clear display and stable performance.
This analyzer supports automatic temperature compensation to ensure high measurement accuracy. It is equipped with standard RS485 MODBUS-RTU communication, optional 4–20mA analog output and multi-channel relay control, which can be seamlessly connected with PLC, DCS and upper computer monitoring system.
With wall-mounted structure, IP65 protection, easy calibration and strong anti-interference, it is suitable for long-term stable operation in industrial field.
It is widely used in wastewater treatment, aquaculture, drinking water, chemical process, circulating water and environmental monitoring.
Industrial RS485 pH Analyzer is a high-precision online water quality monitoring instrument. It matches digital pH/ORP electrode to continuously measure water pH value and oxidation-reduction potential. Equipped with standard RS485 Modbus RTU communication, automatic temperature compensation, relay alarm and 4-20mA optional output, it provides stable 24/7 monitoring for water treatment, industrial process and environmental discharge.
Advantages
• Standard RS485 Modbus-RTU for remote monitoring and system integration
• Dual pH / ORP measurement, high accuracy and long-term stability
• 4–20mA analog + relay + digital communication, multiple output modes
• Easy calibration (automatic buffer recognition)
• Strong anti-interference, suitable for industrial site environment
• Compact structure, easy installation and operation
Application Fields
• Municipal water supply & wastewater treatment
• Industrial circulating water & chemical process water
• Aquaculture water quality control
• Pharmaceutical & food processing water
• Environmental online monitoring stations
• Boiler feed water & ultrapure water systems
Technical Parameters
|
Parameter |
Specification |
|
|
Measurement Parameters |
pH, ORP, Temperature |
|
|
pH Range |
-2.00 to 16.00 pH |
|
|
ORP Range |
-1999 to 1999 mV |
|
|
Temperature Range |
-30.0 to 130.0°C |
|
|
Resolution |
pH: 0.01, ORP: 1 mV, Temp: 0.1°C |
|
|
Accuracy |
pH: ±0.01 ±1 Digit, ORP: ±0.1% ±1 Digit, Temp: ±0.2°C ±1 Digit |
|
|
Temperature Compensation |
NTC22K / PT1000 / PT100 / Manual Mode |
|
|
Calibration |
Single-point, Two-point, or Three-point |
|
|
Input Impedance |
> 10¹² Ω |
|
|
Current Outputs |
2× Isolated 4–20mA (Max load: 500Ω each) |
|
|
Relay Output |
240VAC 3A (ON/OFF control) |
|
|
Display |
LCD (240×160 or 256×128 dot matrix) |
|
|
Operating Temp. |
0 to 50°C |
|
|
Storage Temp. |
-10 to 70°C |
|
|
Power Supply |
100–240VAC ±10%, 50/60Hz, 5W |
|
|
Installation |
Wall-mounted / Pipe-mounted / Panel-mounted |
|
|
Dimensions (H×W×D) |
96 × 96 × 125 mm |
|
|
Panel Cutout Size |
93 × 93 mm |
|
|
Weight |
0.8 kg |
Product Application
