FST100-ZD103 Smart Water Turbidity Sensor

  • NG # 04033-HW-FST-008

  • MF # FST100-ZD103

The FST100-ZD103 Smart Water Turbidity Sensor is a high-precision water quality monitoring sensor designed for continuous online turbidity measurement. Utilizing the 90° scattered light measurement principle, it delivers accurate and reliable turbidity readings with excellent resistance to interference. Featuring an RS485 interface with Modbus RTU communication, IP68 protection, and a rugged stainless steel housing, it is ideal for industrial water treatment, environmental monitoring, wastewater management, and process control applications.

Manufactured By :
Firstrate Sensor
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Overview

The FST100-ZD103 Smart Water Turbidity Sensor is an advanced optical sensor developed for real-time monitoring of water turbidity in industrial and environmental applications. It measures turbidity using the 90° scattered light method, where suspended particles scatter a light beam and the sensor calculates turbidity based on the intensity of the scattered light. The measured data is internally calibrated and linearized to ensure stable and accurate output.

Designed for demanding environments, the sensor incorporates a built-in temperature sensor, dual high-impedance differential amplifier for superior noise immunity, and an IP68-rated stainless steel enclosure for long-term operation in submerged or flow-through installations. Supporting both 4–20 mA analog output and RS485 communication with the Modbus RTU protocol, it integrates easily into PLC, SCADA, and industrial automation systems.

The FST100-ZD103 is widely used in water treatment facilities, wastewater plants, power generation, pharmaceutical manufacturing, food processing, petroleum, metallurgy, aquaculture, and environmental monitoring where continuous and dependable water quality measurement is required.

Specification

SpecificationDetails
Product ModelFST100-ZD103
Product TypeSmart Water Turbidity Sensor
Measurement Principle90° Scattered Light Optical Measurement
Measuring Range0–100 NTU (Customizable)
Accuracy±1% FS
Resolution0.01 NTU / 0.1 NTU (depending on configuration)
Output Signal4–20 mA, RS485
Communication ProtocolModbus RTU
Power Supply9–30 VDC
Built-in Temperature SensorYes
Operating Temperature0°C to 50°C
Operating Pressure<0.4 MPa
Housing MaterialStainless Steel
Protection RatingIP68
Installation MethodFlow-through or Submersible
Signal Cable Length5 m (Customizable)
Load Resistance<750 Ω
Calibration MethodMulti-point Calibration
AmplifierDual High-Impedance Differential Amplifier
Response CharacteristicsFast Response with High Anti-Interference Capability

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