High Quality Online Ph Meter for Plants

Product Overview

- Model: PHG-2081S High Quality Online pH Meter for plants (digital pH/ORP meter).

- Purpose: Continuous online measurement of pH, ORP (mV) and temperature for process and environmental monitoring.

- Hardware: Panel/wall/pipe-mounted analyzer with digital pH/ORP sensor that communicates via RS485 Modbus.

Product Features

- Digital sensor with built-in RS485 Modbus communication and on-sensor calibration memory (calibration data stored in the sensor).

- Measurement ranges: pH -2.00 to 16.00; ORP -2000 to +2000 mV; temperature -30.0 to 130.0 °C.

- Accuracy/resolution: ±0.01 pH (0.01 pH resolution), ±1%FS for mV (1 mV resolution), ±0.5 °C (0.1 °C resolution).

- Outputs and control: two isolated 4–20 mA outputs (pH/ORP and temperature), RS485 Modbus RTU, and three relays (two high/low alarm relays + one cleaning relay).

- Data capabilities: onboard data recording/datalogger and history curve viewing; IP65 protection for harsh environments; power 90–260 VAC.

Product Value

(benefits to users)

- Reliable, high-precision continuous monitoring for better process control and regulatory compliance.

- Reduced downtime and service cost because calibration is saved in the sensor and predictive-maintenance features help plan interventions.

- Remote integration and long-distance installation via RS485 Modbus enable centralized monitoring and automation.

- Traceability and troubleshooting made easier with recorded historical data and trend curves.

- Flexible installation options (panel/wall/pipe) and robust design enable deployment across many industrial plant environments.

Product Advantages

(what differentiates it)

- Digital sensor architecture with on-sensor calibration and Modbus gives more accurate, consistent readings and simplifies sensor replacement.

- Predictive maintenance capability and saved calibration data reduce maintenance time and total cost of ownership.

- Industrial-grade protection (IP65), isolated analog outputs and multiple relays for reliable control in harsh plant conditions.

- High measurement precision and resolution suitable for demanding process-control applications.

- Compact, versatile mounting and standard industrial communications for easy integration into existing control systems.

Application Scenarios

- Wastewater treatment and sewage monitoring.

- Drinking water distribution and environmental water monitoring.

- Fermentation, food & beverage production process control.

- Industrial process water, chemical plants and utility water systems.

- Aquaculture, pools, laboratories and any continuous pH/ORP monitoring application requiring remote integration and data logging.