Fluorescence dissolved oxygen detector

1. Scope of application

The portable fluorescent dissolved oxygen detector is an intelligent analytical instrument that can be used for the determination of dissolved oxygen in water bodies in departments such as tap water source monitoring, aquaculture farms, environmental protection, sewage treatment plants, beverage industry and scientific research units. The instrument has a novel appearance and is easy to carry, suitable for on-site and field operations. At the same time, the battery of the instrument has a long continuous working life and can be used as a routine analytical equipment in the laboratory.

2. Instrument features

(1) The instrument can measure dissolved oxygen concentration, dissolved oxygen saturation and temperature.

(2) The instrument adopts microprocessor technology and has automatic temperature compensation function. It can perform zero oxygen calibration, full scale calibration, air pressure calibration and salinity calibration.

(3) The instrument has a data power-off protection function. After the instrument is turned off or in the case of abnormal power failure, the measurement data and set parameters stored in the instrument will not be lost.

(4) The instrument adopts a low-power design and has an undervoltage display mark. The instrument can store, delete and view the measurement results. It can store more than 100,000 test data.

(5) The instrument uses a new material Android panel with good reliability.

(6) The instrument protection level is IP54, waterproof and dustproof, suitable for field operations.

3. Main technical performance of the instrument

(1) Dissolved oxygen sensor

Principle: fluorescence measurement method

Concentration: 0-20mg/L (ppm)

Accuracy: <5ppm: ±0.2ppm (0.2mg/L); >5ppm: ±0.3ppm (0.3mg/L)

Repeatability: 0.2ppm (0.2mg/L)

Response time (dissolved oxygen): T90 <30 seconds

Dissolved oxygen regression at the same temperature <0.1mg/L condition: stable for 200S

Temperature shock regression <0.1mg/L condition: stable for 1 hour

Dissolved oxygen saturation: 0-200% saturation

Temperature: 0-40℃

Communication interface: RS485 (baud rate 9600)

Communication protocol: ModbusRTU

Power consumption: 20mA

Waterproof depth: 10 meters

Case material: ABS/PC 304 316 stainless steel

Tail material: PVC

(2) Normal working conditions of the instrument

Ambient temperature: (0.0～40.0)℃

Atmospheric pressure: 86~106 kPa

Relative humidity: <85%

Protection level: IP54

In an environment without corrosive gases and good ventilation, there is no electromagnetic interference except the geomagnetic field.

(3) External power supply: DC 5V /2A

(4) Rated power: 3W

(5) Battery capacity: 6000mAh (standby 10h)

(6) Dimensions: 85mm*38mm*176mm

Product's Website：http://en.huoerd.com/djf/1612.html