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Online fluorescence dissolved oxygen analyzer

NegotiableUpdate on 05/01
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Overview

The online dissolved oxygen analyzer uses fluorescence method to measure dissolved oxygen. The top of the sensor is covered with a layer of fluorescent substance. When the blue light emitted by the sensor shines on the fluorescent substance, it is excited to emit red light. Due to the quenching effect of oxygen molecules, the time and intensity of the excited red light are inversely proportional to the concentration of oxygen molecules. The concentration of dissolved oxygen in water can be calculated.

Product Details

Measurement principle:

The online dissolved oxygen analyzer uses fluorescence method to measure dissolved oxygen. The top of the sensor is covered with a layer of fluorescent substance. When the blue light emitted by the sensor shines on the fluorescent substance, it is excited to emit red light. Due to the quenching effect of oxygen molecules, the time and intensity of the excited red light are inversely proportional to the concentration of oxygen molecules. The concentration of dissolved oxygen in water can be calculated.

Key Features:

The sensor adopts a new type of oxygen sensitive membrane with built-in NTC temperature compensation function, and the measurement results have good repeatability and stability;

There will be no oxygen consumption during measurement, and there are no flow rate/agitation requirements;

Breakthrough fluorescence technology, without membranes or electrolytes, requiring minimal maintenance;

Built in self diagnosis function to ensure accurate data;

Factory calibration, no calibration required for one year, can be calibrated on-site;

Digital sensors with strong resistance and long transmission distance;

Standard digital signal output, which can be integrated and networked with other devices without a transmitter;

The on-site installation of sensors is convenient and fast, achieving plug and play functionality.

Typical applications:

Online monitoring of dissolved oxygen (DO) in various processes such as regulating tanks, biochemical tanks, and effluent in sewage treatment plants;

DO online monitoring for industries such as waterworks, surface water, water used in various industrial production processes, and aquaculture.

Technical Specifications:

measurement range

Dissolved oxygen: 0-20 mg/L, 0-20 ppm;

Temperature: 0-45 ℃

measurement accuracy

Dissolved oxygen: measured value ± 3%; Temperature: ± 0.5 ℃

pressure range

≤0.3Mpa

Calibration

Automatic air calibration, sample calibration

Sensor material

Body: SUS316L+PVC (regular version), titanium alloy (seawater version); O-ring: Fluororubber; Cable: PVC

Storage temperature

-15 to 65 ℃

Operating Temperature

0 to 45 ℃

Size

Diameter 55mm * Length 342mm

Weight

1.85KG

Protection level

IP68/NEMA6P

cable length

Standard 10 meter cable, extendable up to 100 meters

controllertechnologyparameter

display output

128 * 64 dot matrix LCD with LED strong backlight for direct sunlight operation

electricity source

AC power supply: AC220V, 50HZ

DC power supply: DC24V

Main materials

PA66+GF25+FR (top cover); Aluminum alloy powder coating (lower shell)

lose go out

Two 4-20mA analog outputs, program set response parameters and corresponding ranges

succeed electricity device

Set up three relays, program response parameters and response values

digital communication

Equipped with MODBUS RS485 communication function, it can transmit measurement values in real time

Storage temperature

-20 to 70 ℃

Operating temperature

-15 to 60 ℃

waterproof rating

IP65/NEMA4X

ruler inch

145mm * 125mm * 162mm (length * width * height)

heavy quantity

1.3KG