Self cleaning COD sensor

Self cleaning COD sensor

The Frog Vision UV254 COD sensor uses advanced deep ultraviolet UV LED cold light source, with long lifespan and low drift. Adopting internationally recognized technology and validated high-precision UV absorption methods. No sample pretreatment required, fast reaction analysis speed, no need for any reagents, no need for sampling equipment. The sensor has a mechanical self-cleaning function and uses a 400-880nm four light path compensation light source, which can effectively eliminate the influence of turbidity and chromaticity on measurement.

advantage:

Five light paths: 254nm and blue, green, red, infrared, can effectively eliminate turbidity and chromaticity effects.

The UV absorption method is used to determine organic compounds (such as COD, TOC, etc.) without the need for reagents or sample digestion.

Fast response speed, with a maximum response time of 10 seconds (T90).

Adopting advanced cold light source UV LED, with long lifespan and small drift. Using a filter and PD receiver, with no consumables, long lifespan, and low drift.

Equipped with an automatic cleaning brush as standard, it can effectively prevent biological contamination.

• Possessing independent property rights and a stable supply chain of key components, the products have*Highcost performance.

• Can simultaneously output COD, SAC, T transmittance, TOC (1) ，BOD (1) ， Turbidity (2).

Self cleaning COD sensorTechnical Specifications

Measurement method: UV254 absorption method, in accordance with DIN 38402 C2, DIN 38404, and HJ T191 standards

Measurement range: 6mm optical path 0.15~300mg/L equiv. KHP (COD standard solution @ 25 ℃,<200NTU)

2mm optical path 0.5~1000mg/L equiv. KHP (COD standard solution @ 25 ℃,<200NTU)

2mm optical path 1.5~1500mg/L equiv. KHP (COD standard solution @ 25 ℃,<200NTU)

Resolution: 0.1mg/L or 0.01mg/L COD

Repeatability: ± 1% FS equiv. KHP

Operating temperature range: 0~45 ℃

Storage temperature range: -10~50 ℃

Automatic cleaning: Yes (default)

Warranty: 1 year (excluding brushes)

Usage depth: IP68,<10 meters

Power supply: 12V 20mA (normal), 200mA (when the brush rotates)

Output: RS485, Modbus RTU protocol

Material: Titanium alloy, 316, POM， Nylon and quartz glass

Size: 280mm in length (excluding cables), 142x157mm in shape (including protective cover, optional)

Flow velocity:<3 m/s

Response time: fastest 10 seconds T90

Service life *: Sensor 3 years or more, cleaning brush system 18 months or more

Maintenance and calibration frequency *: 1-3 months for sensors, 6-12 months for cleaning brush systems

Note: * The lifespan, maintenance, and calibration frequency are for reference only and depend on the actual usage environment.

KHP: Potassium hydrogen phthalate