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pH Transmitter-Intrinsically Safe Multi-Parameter Analyzer Transmitter
The intrinsically safe multi-parameter water quality analyzer transmitter is designed for continuous online monitoring of critical water quality parameters in hazardous and explosive environments.
With Ex ia intrinsic safety design, the transmitter ensures safe operation in Zone 0 / Zone 1 classified areas while delivering reliable multi-parameter analysis.
It integrates pH (acid/alkali concentration), ORP, dissolved oxygen (DO), turbidity, and residual chlorine measurement into a single intelligent platform, making it ideal for petrochemical plants, chemical processing units, and hazardous wastewater treatment facilities.
Transmitters & Sensors Description
pH Transmitter-Intrinsic Safety Design & Compliance
This analyzer is developed in strict accordance with international intrinsic safety standards. By limiting electrical energy within safe thresholds, it eliminates ignition risk even under fault conditions.
Key safety features include:
Intrinsically safe circuit design (Ex ia)
Compatible with certified intrinsic safety barriers
Suitable for hazardous gas and vapor environments
Designed for safe operation during installation, calibration, and maintenance
This ensures maximum safety for personnel and equipment in explosive atmospheres.
Analyzer Transmitter | Multi-Channel Measurement System & Performance
The transmitter adopts a multi-channel architecture, allowing simultaneous measurement of multiple water quality parameters without signal interference. Each channel operates independently, ensuring high accuracy and long-term stability.
Advanced signal processing and automatic temperature compensation provide reliable measurement performance under changing process conditions, making the analyzer suitable for continuous 24/7 operation in harsh and hazardous environments.
Explosion-proof pH Transmitter – Applications & Media Compatibility
The intrinsically safe multi-parameter analyzer is widely used in:
Petrochemical and chemical processing plants
Hazardous wastewater treatment systems
Oil & gas production facilities
Industrial effluent monitoring in explosive areas
Environmental monitoring in classified zones
Compatible media include:
Industrial wastewater and effluent
Process water containing flammable or corrosive substances
Acidic, alkaline, and chlorinated solutions
Supported sensors:
pH and ORP electrodes
Dissolved oxygen sensors
Turbidity sensors
Residual chlorine electrodes
Ph Analyzer Transmitter-Output, Communication & System Integration
The analyzer provides intrinsically safe 4–20 mA outputs for each measurement channel and supports RS485 Modbus RTU communication for digital integration.
It can be seamlessly connected to PLC, DCS, and SCADA systems through certified safety barriers, enabling centralized monitoring, alarm management, and regulatory compliance reporting.
Transmitters & Sensors Parameter
Technical Specifications – Intrinsically Safe pH / ORP Analyzer
Measurement Range & Resolution
pH: –2.00 to 14.00 pH
Resolution: 0.01 pHORP: –1999 to +1999 mV
Resolution: 1 mVTemperature: –15 to 130 °C
Resolution: 0.1 °C
Automatic Temperature Compensation
Compensation Range: 0 to 100 °C
Reference Temperature: 25 °C
Accuracy
pH: ±0.01 pH
ORP: ±1 mV
Temperature: ±0.5 °C (0 to 100 °C)
Stability
pH Drift: ±0.02 pH / 24 h
Output & Electrical Isolation
Output Signal: 4–20 mA
Isolation: Input, output, and power supply are fully isolated
Power Supply: Via intrinsic safety barrier
Power Supply
Supply Voltage: 24 V DC + 2.4 V
Protection Class
Ingress Protection: IP67
Operating Conditions
Ambient Temperature: –20 to +70 °C
Relative Humidity: < 90% RH (non-condensing)
Explosion Protection
Explosion Protection Rating: Ex ia IIC T6 Ga
Intrinsic Safety Parameters
Ui: 28 V DC
Ii: 93 mA
Pi: 0.65 W
Ci: 0.044 μF
Li: 0 mH
Instrava OEM/ODM
Reliable Instruments. Solutions That Fit Your Application.
Instrava is focused on delivering reliable industrial solutions through carefully curated products, application-driven optimization, and flexible customization. We select proven instruments from trusted manufacturers to ensure consistent quality, optimize solutions based on real working conditions to solve practical challenges, and provide tailored configurations to meet specific application needs.
By combining selection expertise with application understanding, Instrava helps customers reduce risk, improve efficiency, and achieve dependable results in complex industrial environments.
What hazardous areas is this intrinsically safe water quality analyzer suitable for?
This analyzer is certified Ex ia IIC T6 Ga, making it suitable for Zone 0, Zone 1, and Zone 2 hazardous areas. It can be safely installed in environments with flammable gases such as hydrogen, acetylene, and petrochemical vapors commonly found in oil & gas, chemical plants, and wastewater treatment facilities.
Can one transmitter measure multiple water quality parameters simultaneously?
Yes. This multi-parameter analyzer supports pH, ORP, dissolved oxygen, turbidity, residual chlorine, and temperature through a multi-channel architecture, reducing installation cost, wiring complexity, and the number of field devices required in hazardous locations.
How is signal safety ensured when connecting to control systems in hazardous areas?
The transmitter uses intrinsic safety barriers and features fully isolated 4–20 mA outputs (input, output, and power supply isolation). This design prevents energy accumulation and ensures safe signal transmission to PLC or DCS systems without risk of ignition.
Is the analyzer suitable for harsh wastewater or corrosive media?
Yes. The analyzer is designed for sewage, industrial wastewater, and corrosive chemical media. It supports corrosion-resistant electrodes and stable signal processing, ensuring reliable measurement even under high humidity, variable temperature, and fluctuating water quality conditions.
How often does the intrinsically safe analyzer require calibration or maintenance?
Calibration frequency depends on the measured parameter and application. For most wastewater and industrial processes, routine calibration every 1–3 months is recommended. The transmitter itself is maintenance-free; only sensor cleaning and calibration are required.
Can this explosion-proof analyzer be customized for specific projects?
Yes. The system supports custom sensor combinations, output configurations, communication options, enclosure materials, and mounting methods, allowing seamless integration into customized hazardous-area water monitoring projects.
Why Choose Instrava
Built on Consistency, Not Claims
Focused on Industrial Applications
We specialize in industrial analysis and detection, with a clear understanding of real-world operating environments and requirements.
Strict Product Selection Criteria
Every instrument is evaluated based on performance, stability, and application suitability—not just specifications or pricing.
Reliable Supply & Quality Consistency
We work with trusted manufacturers to ensure stable supply, consistent quality, and dependable delivery.
Practical, Experience-Based Support
Our recommendations are grounded in application understanding, helping customers avoid common issues and achieve reliable results.
Instrava is built to reduce uncertainty—so every decision you make is clearer, safer, and more reliable.
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