Up to six indicators: TOC, COD, turbidity, color, UV254 and temperature
Simultaneously reports TOC, COD, turbidity, color, UV254 and water temperature.
Industrial & Professional Sensors
WQM3A-PRO
Self-Cleaning Spectral Water Quality Sensor
Self-cleaning, reagent-free spectral sensor for continuous TOC, COD, turbidity, color, UV254 and temperature monitoring.
Key Specifications
- Measurement Range
- TOC 0–300 mg/L; COD 0–800 mg/L; turbidity 0–1000 NTU; color 0–1000 degree; UV254 0–5 AU/cm; 0–80 °C
- Supply
- DC 9–36 V; 75 mA measuring, 450 mA cleaning typical
- Accuracy
- TOC/COD/color/UV254 ±10% F.S.; turbidity ±5% F.S.; temperature ±0.5 °C
Product capabilities
Evaluate the capabilities that matter in your system
A complete reagent-free online instrument built around multispectral absorption and scattering. It is intended for continuous trend monitoring, process control and early-warning points where dense data and low consumable use matter.
Non-contact spectral measurement without reagents
Isolated RS485 communication supports Modbus RTU, 9600 bps and cable runs up to 1000 m.
Automatic physical cleaning for fouling control
9–36 VDC input; typical measuring current 75 mA and automatic-cleaning peak current 450 mA.
Isolated RS485 with Modbus RTU
IP68 stainless-steel body, Ø58 × 203 mm, for immersion or controlled flow-through installation.
Overview
Product overview
A complete reagent-free online instrument built around multispectral absorption and scattering. It is intended for continuous trend monitoring, process control and early-warning points where dense data and low consumable use matter.
WQM3A-PRO combines non-contact spectral measurement, automatic physical cleaning and isolated Modbus RTU communication for continuous surface-water, wastewater, treatment-effluent and discharge monitoring.
Engineering notes
Selection and system integration
- 01Simultaneously reports TOC, COD, turbidity, color, UV254 and water temperature.
- 02Isolated RS485 communication supports Modbus RTU, 9600 bps and cable runs up to 1000 m.
- 039–36 VDC input; typical measuring current 75 mA and automatic-cleaning peak current 450 mA.
- 04IP68 stainless-steel body, Ø58 × 203 mm, for immersion or controlled flow-through installation.
Technical data
Key Specifications
Use this information for initial selection; confirm final design and purchasing against the current approved datasheet and sample.
- Measurement Range
- TOC 0–300 mg/L; COD 0–800 mg/L; turbidity 0–1000 NTU; color 0–1000 degree; UV254 0–5 AU/cm; 0–80 °C
- Supply
- DC 9–36 V; 75 mA measuring, 450 mA cleaning typical
- Accuracy
- TOC/COD/color/UV254 ±10% F.S.; turbidity ±5% F.S.; temperature ±0.5 °C
- Response time
- 1–3 s; 20 s continuous interval
- Interface
- RS485 / Modbus RTU, 9600 bps; up to 1000 m
- Dimensions
- Ø58 × 203 mm; 580 g
- Protection
- IP68; 0–1 bar working water pressure
Application readiness
Installation, calibration and validation
Validate the product with real samples, final mechanics and the intended electrical environment before production.
- 01
Select a representative point with stable immersion and minimal trapped air.
- 02
Validate the application calibration against laboratory reference samples from the actual water matrix.
- 03
Use the cleaning interface where biofilm or suspended solids can coat the optical windows.
Public documents
Datasheets and product documents
Documents are based on AtomBit public product information; confirm the current revision before design release.
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