Our Online Flameproof pH Indicator combines industrial-grade measurement accuracy with certified explosion protection — giving you reliable performance in the most demanding and hazardous applications. Whether you need continuous pH monitoring in a refinery, scrubber tanks, chemical reactor, or solvent-rich production area, this device ensures both compliance and confidence. With high-performance instrument built for online and continuous pH monitoring in a wide range of industrial applications. It features a user-friendly interface, rugged construction, and advanced signal processing to deliver fast and reliable pH readings in real-time.

This pH meter integrates seamlessly with SCADA, DCS, or PLC systems via analog and digital outputs, allowing centralized control and monitoring. It’s ideal for industries such as water treatment, chemical processing, food and beverage, pharmaceuticals, and power generation.

Key Features

Accurate & Real-Time Monitoring
provides continuous and precise pH measurements with high resolution and stability for critical process control.

Wide pH Measurement Range
Supports full pH range (typically 0 to 14 pH) with high resolution and automatic temperature compensation (ATC).

Temperature Compensation 
Built-in temperature compensation ensures accurate pH readings even under varying process temperatures.

Dual Output (Analog & Digital)
Features 4–20 mA output and optional Modbus/RS485 digital communication for easy integration with PLC/SCADA systems.

Configurable Alarms & Relays
Programmable high/low alarms with relay outputs for process control or safety interlocks.

Backlit OLED Display
Bright, clear digital display shows real-time pH values, temperature, and device status.

Sensor Diagnostics
Alerts for probe condition, calibration status, and signal stability to ensure reliable operation and reduce downtime.

User-Friendly Interface
Intuitive menu system for easy calibration, configuration, and troubleshooting – no specialist training required.

Applications

The Online Flameproof pH Indicator is ideal for continuous pH monitoring in hazardous or explosive environments, including:

Chemical & Petrochemical Plants: Monitoring pH in reactors, scrubbers, and effluent treatment systems.

Oil & Gas Industry: Suitable for offshore platforms, refineries, and gas processing units.

Pharmaceutical Manufacturing: Ensures safe pH control in solvent-rich or flammable zones.

Paint & Coatings Industry: pH monitoring in mixing and storage areas with volatile compounds.

Fertilizer Plants: Continuous monitoring in acid/alkali dosing processes.

Explosives Manufacturing: pH control in sensitive and high-risk areas.

Water & Wastewater Treatment: Used in hazardous zones near flammable chemical storage or dosing systems.