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OWS-DW Dual Wavelength Water Quality Sensor

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  • Based on the UV-Visible absorption method, OWS-DW uses 2 wavelengths to probe pollution with innovative measurement algorithms for actual water applications.
  • The sensor measures the organic matter in water with a turbidity compensation function, which effectively improves the accuracy of actual water sample measurement.
  • The influence of temperature change is compensated by a reference light.
  • The sensor is equipped with an automatic brush, which keeps the cleanness of window for a long period (~ 6 months) even in very dirty conditions.
  • Scope of application: monitoring of domestic sewage, industrial wastewater， sewage treatment, water sources, watersheds, etc.
  • The sensor can be equipped with our TRM-TP transmitter and Ulik-Server Cloud Service to realize remote real-time monitoring of data and remote operation and maintenance of equipment.
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★  Key Performance Parameters：

 

Monitoring parameter Gap Range Accuracy Resolution
COD 10 mm 0-500 mg/L ±2.5%  or ±2.5 mg/L 0.01 mg/L
5 mm 0-1000 mg/L ±2.5% or ±2.5 mg/L 0.01 mg/L
BOD 10 mm 0-100 mg/L ±5% or ±5 mg/L 0.01 mg/L
5 mm 0-200 mg/L ±5% or ±5 mg/L 0.01 mg/L
TUR 10 mm 0-500 NTU ±2.5% or ±5  NTU 0.01 NTU
5 mm 0-1000 mg/L ±2.5% or ±10 NTU 0.01 NTU
TOC 10 mm 0-200 mg/L ±2.5% or ±2.5 mg/L 0.01 mg/L
5 mm 0-400 mg/L ±2.5% or ±2.5 mg/L 0.01 mg/L
Temperature 0～60 ℃ 0.0625 ℃ ±1 ℃

 

OWS-DW vs s::can

 

 

OWS-DW vs Hach DR100

Basic Parameters:

Additional information

Principle

UV-Visible absorption method
Light Source

LED
Wavelength

254 nm，550 nm
Gap

10 mm, 5 mm
Measurement Interval

Minimum 1 S
Interface

RS485
Protocol

Modbus RTU
IP Rating

IP68
Material

AISI 316L
Weight

1.6 kg
Dimension

Φ45×325 mm
Mouting

Immersion, flow-through installation
Cleaning Methed

Automatic, brush
Working Voltage

DC 12~24 V
Power

＜6 W
Working Temp

0~50 ℃
Pressure

≤0.5 MPa
Humidity

5%~95%
Cable Length

Custom
Certification

CE/RoHS
Warranty

One year

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