TOC, COD, UV254 and temperature online measurement
Measures TOC, COD, UV254 and temperature with application-specific calibration.
Industrial & Professional Sensors
WQM11A
Spectral Multi-Parameter Water Quality Sensor
Compact reagent-free sensor for online TOC, COD, UV254 and temperature monitoring in drinking-water and purified-water equipment.
Key Specifications
- Measurement Range
- TOC 0–20 mg/L; COD 0–20 mg/L; UV254 0–0.5 AU/cm; temperature 0–80 °C
- Supply
- DC 4.5–5.5 V; 5 V typical
- Accuracy
- TOC/COD/UV254 ±15% F.S.; temperature ±0.5 °C
Product capabilities
Evaluate the capabilities that matter in your system
A compact, non-contact multispectral sensor for commercial water equipment and distributed monitoring. The pressure-resistant stainless-steel flow path integrates directly into pipelines and equipment without chemical reagents.
Non-contact optics with no chemical consumables
Isolated UART communication operates at 115200 bps with an 8N1 frame.
Isolated UART communication at 115200 bps
4.5–5.5 VDC input; use a stable 5 V source with ripple below 20 mV.
1.2 MPa working pressure; 1.5 MPa limit
Ø38 mm body, G1/2 connection, IP66, 1.2 MPa working pressure and 1.5 MPa limit.
Overview
Product overview
A compact, non-contact multispectral sensor for commercial water equipment and distributed monitoring. The pressure-resistant stainless-steel flow path integrates directly into pipelines and equipment without chemical reagents.
WQM11A combines non-contact spectral detection, automatic temperature correction and isolated UART communication in a compact G1/2 stainless-steel structure for purifiers, dispensers, tanks and water equipment.
Engineering notes
Selection and system integration
- 01Measures TOC, COD, UV254 and temperature with application-specific calibration.
- 02Isolated UART communication operates at 115200 bps with an 8N1 frame.
- 034.5–5.5 VDC input; use a stable 5 V source with ripple below 20 mV.
- 04Ø38 mm body, G1/2 connection, IP66, 1.2 MPa working pressure and 1.5 MPa limit.
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 0–20 mg/L; COD 0–20 mg/L; UV254 0–0.5 AU/cm; temperature 0–80 °C
- Supply
- DC 4.5–5.5 V; 5 V typical
- Accuracy
- TOC/COD/UV254 ±15% F.S.; temperature ±0.5 °C
- Response time
- 1–3 s; 3–5 s recovery and interval
- Interface
- UART, 115200 bps, 8N1; 100 cm reference distance
- Dimensions
- Ø38 mm body; 30 g; G1/2 connection
- Protection
- IP66; 0–1.2 MPa working pressure; 1.5 MPa limit
Application readiness
Installation, calibration and validation
Validate the product with real samples, final mechanics and the intended electrical environment before production.
- 01
Install with the optical path completely filled and purge trapped bubbles before validation.
- 02
Use clean, stable 5 V power and observe the digital-interface voltage limit.
- 03
Verify the installed sensor with representative low-organic water samples across the intended range.
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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