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Transmitter
Multi-Parameter Water Quality Sensor
The multi-parameter water quality sensor is designed to work seamlessly with Instrava multifunction water quality analyzers.
A single integrated probe enables simultaneous measurement of up to seven key water quality parameters, significantly reducing installation space, wiring complexity, and maintenance workload.
With digital RS-485 (Modbus RTU) output, automatic cleaning capability, and wide power supply compatibility, the sensor is ideal for continuous online monitoring in water treatment, chemical processes, environmental monitoring, and industrial wastewater applications.
Transmitter Description
7-in-1 Digital Sensor-Measured Parameters
This integrated sensor supports the following parameters within one compact structure:
pH
Dissolved Oxygen (DO)
Turbidity
Conductivity / Salinity
ORP (Oxidation Reduction Potential)
Temperature
All parameters are measured simultaneously and transmitted digitally to the analyzer.
Working with Water Quality Analyzer
The sensor is specifically designed for integration with Instrava multifunction water quality analyzers.
All measured parameters are digitally transmitted via RS-485, ensuring:
Stable signal transmission over long distances
No signal drift compared with analog sensors
Simplified wiring and commissioning
One analyzer can display, transmit, alarm, and log all parameters simultaneously.
Multi-Parameter Water Quality Sensor Key Advantages
7 parameters in one sensor – compact and space-saving
Digital RS-485 output – strong anti-interference performance
Automatic cleaning function – reduced maintenance frequency
Unified power supply – easy system integration
Factory-matched analyzer compatibility – plug-and-play deployment
Multi-Parameter Water Quality Sensor Typical Applications
Municipal water treatment plants
Industrial wastewater treatment
Chemical process water monitoring
Environmental monitoring stations
Power plants and energy facilities
Food & pharmaceutical water systems
Transmitter Parameter
Multi-Parameter Sensor – 7 Parameters
| Parameter | pH Sensor | Dissolved Oxygen | Turbidity | Conductivity / Salinity | ORP | Temperature |
|---|---|---|---|---|---|---|
| Measuring Range | 0 ~ 14 pH | 0 ~ 20 mg/L | 0 ~ 1000 NTU | 0 ~ 5000 µS/cm | -1500 mV ~ +1500 mV | 0 ~ 50 ℃ |
| Accuracy | ±0.1 pH | ±0.3 mg/L | ±5% or ±3 NTU | ±1.5% F.S. | ±6 mV | ±0.3 ℃ |
| Resolution | 0.01 pH | 0.01 mg/L | 0.1 NTU | 1 µS/cm | 1 mV | 0.1 ℃ |
General Specifications
| Item | Specification |
|---|---|
| Output Signal | RS-485 (Modbus RTU) |
| Cleaning Method | Automatic cleaning |
| Power Supply | 12–24 VDC ±5% |
| Cable Length | Standard 10 m (customizable) |
Transmitter OEM/ODM
Instrava Customization & Engineering Services
At Instrava, we understand that water quality monitoring conditions vary significantly across industries and sites. Beyond standard products, we provide end-to-end customization and engineering support to ensure reliable performance in real-world applications.
🔧 Customization Services
Parameter Combination Customization
Customize measured parameters based on application needs (e.g., pH + DO + Turbidity + Conductivity).Cable Length & Connector Options
Standard 10 m cable, extended or customized lengths available for deep wells, channels, or outdoor installations.Cleaning System Optimization
Adjustable automatic cleaning cycles and cleaning methods for high-fouling or sludge environments.Protocol & Integration Support
Modbus RTU register mapping optimization for PLC, DCS, and SCADA systems.Mechanical & Mounting Adaptation
Custom brackets, immersion pipes, flow-through cells, or installation accessories upon request.
🛠 Engineering Support
Pre-sales application evaluation
On-site or remote commissioning guidance
Calibration and maintenance recommendations
Long-term technical documentation and lifecycle support
Instrava sensors are designed not just to measure, but to operate stably over years of continuous service.
Yes. Each parameter uses an independent sensing element and digital signal processing.
All data are transmitted via RS-485, eliminating cross-interference common in analog multi-sensor systems.
RS-485 allows:
Multi-parameter transmission over one cable
Long-distance communication with strong anti-interference
Easy integration with PLC, SCADA, and DCS systems
No signal drift over time
This makes it ideal for complex water treatment and industrial environments.
Maintenance frequency depends on water quality.
With automatic cleaning enabled, typical inspection cycles are:
Clean water: 3–6 months
Wastewater or sludge: 1–3 months
Automatic cleaning significantly reduces manual intervention.
Yes. Calibration is performed through the connected Instrava water quality analyzer.
Step-by-step calibration guidance and output verification are supported to minimize operational errors.
Yes. The sensor is designed for continuous operation in industrial environments such as:
Chemical processing
Power plants
Municipal and industrial wastewater
Material selection and cleaning functions help maintain long-term stability.
Yes. Instrava multifunction analyzers can be configured to support:
Multiple sensors
Multiple monitoring points
Centralized data acquisition and alarm management
This is ideal for large-scale plants and distributed monitoring systems.
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.
