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UVC immersion online organic matter analyzer

● Small and medium-sized sewage treatment plants continuously monitor the concentration of dissolved organic pollutants in the water , Balance of aeration and nutrients

Organic substances containing conjugated double bonds or polycyclic aromatic hydrocarbons can absorb ultraviolet light when dissolved in water. Therefore, by measuring the absorption of ultraviolet light at 254nm by these organics, we can evaluate the degree of pollution of these organics in water. The "special absorption coefficient", namely SAC254, is a physical quantity used to measure the total amount of organic pollutants in water. Infrared light is used as reference light to compensate for the effect of turbidity.

● International universal UV absorption method with high accuracy;

● Double light path design can eliminate interference caused by chromaticity and turbidity;

● Without sample pretreatment, measurement can be completed within 1 second;

● No chemical reagents, no secondary pollution, reduce costs;

● New light source with long life, low power consumption and stable light intensity;

● External cleaning device, basically maintenance-free;

● Fault detection, the sensor has a fault detection function;

● Removable cables for easy installation and maintenance on site.

Measuring performance

Range: COD: 0-500mg / L Turbidity: 0-500NTU

Resolution: COD: 0.1mg / L Turbidity: 0.5NTU

Measurement accuracy: COD: ± 2% or ± 2.5mg / L, whichever is greater

Turbidity: ± 5% or ± 2.5NTU, whichever is greater

Repeatability: COD: ± 1% Turbidity: ± 1%

Response time: less than 1 minute, adjustable

Display: LCD display date, time, measured value, historical trend line, etc.

Data storage: automatic storage function, power failure data protection, can store and query 10 years of historical data

Field setting: done by the transmitter button


Analog output: 1 isolated 4 ~ 20mA, maximum load 750Ω, optional output current in fault state

Relay output: 3 programmable relays, which can be set as alarm function and timing function

Relay capacity: 2A, 250VAC

Digital interface: MODBUS RS232 / RS485, Profibus DP optional

powered by

AC power supply: 85 ~ 265VAC, 50Hz / 60Hz

DC power supply: 24VDC ± 10%

Physical properties

Transmitter size: 270 × 205 × 100mm

Sensor size: Φ42.5 × 279mm

Material: Transmitter: ABS + PC

Sensor: 316L stainless steel

Connection method: horizontal mounting bracket (3/4 inch female thread)

Environmental performance

Protection level: Transmitter: IP65

Sensor: IP68

Working temperature: Transmitter: -20 ℃ ~ 60 ℃

Sensor: 0 ℃ ~ 40 ℃ (no freezing)

Working pressure: 5Bar