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Transmitter
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
Customization & Services
Customized parameter combinations, channel configurations, and output options are available to meet specific project requirements. OEM and ODM services are supported for large-scale or specialized hazardous-area applications.
Instrava is a trusted partner providing reliable analytical instruments and intrinsically safe solutions for industrial measurement and control in safety-critical environments. We work closely with customers and OEM partners to deliver long-term, compliant, and efficient solutions.
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.
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.
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.
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.
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.
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
By choosing Instrava, you gain a partner with a deep understanding of industrial applications and the expertise to meet today’s operational challenges.
Our role extends beyond products—we support your success through dependable solutions and long-term commitment.
Engineering-Driven Innovation
Innovation at Instrava is guided by real industrial requirements. We continuously refine our technologies to address evolving operational challenges, ensuring practical and reliable performance in demanding environments.
Application-Specific Customization
We provide engineering-level customization to match specific process conditions. From measurement range and materials to output signals and installation options, our solutions are configured to fit real applications.
Proven Quality and Reliability
Quality and reliability are fundamental to every Instrava product. Manufactured under strict quality control and thoroughly tested, our instruments deliver accurate, stable, and long-term performance.
Global Capability with Local Support
Instrava combines global engineering expertise with responsive local support, ensuring our partners benefit from internationally aligned technology and timely regional service.
Comprehensive Product Portfolio
Our broad portfolio of measurement and control instruments enables us to address a wide range of industrial needs, providing integrated solutions from a single, reliable source.
Partner-Oriented Engineering Support
We work closely with our partners from technical consultation to after-sales support. Our focus is on delivering solutions that create lasting value and support long-term operational success.
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