Online UV absorption (UV) water quality COD automatic monitoring instrument

WQA4810-COD (UV) UV absorption chemical oxygen demand analyzer

With the development of water quality analysis instruments, their miniaturization, simplicity, rapid detection, and low cost are gradually becoming popular among users. The WQA4812-COD (UV) UV absorption chemical oxygen demand analyzer is a practical analyzer developed by Beidou Star for users' needs. Portable detection consists of a host and a sensor, without the need for sampling, reagents, or instrument calibration. It is plug and play on-site, making on-site detection truly fast, simple, and convenient. The online structure design is more diverse, with pipeline insertion and input types, which can meet user needs as much as possible.

Pursuing "fast and convenient testing" has always been the innovation goal of Beidouxing Instrument. The design principle of this instrument is that over the past 30 years, after several generations of experts from the Chinese Academy of Sciences, compared with the advantages and disadvantages of existing technologies of testing principles at home and abroad, Beidouxing has researched, developed and gradually improved the mature high reliability UV absorption photometer testing technology, and applied it to the water quality detection of COD.

The design principle of this instrument is based on the dual channel photometer principle technology, using ultraviolet absorption photometer method to calculate the comprehensive pollution index of water body and determine COD according to Lambert Beer law. Referring to the technical specifications, process requirements, and testing methods of the State Environmental Protection Administration's "HJ/T 191-2005 Technical Requirements for Ultraviolet (UV) Absorption Water Quality Automatic Online Monitoring Instrument", high-tech design, manufacturing, and inspection are adopted as the basic basis for this product, making it widely applicable for rapid detection, process control, and water quality monitoring in sewage treatment.

This instrument has been used in user laboratories and outdoor sites for many years, and has been applied to the monitoring of multiple water sources in national key monitoring points such as Zhangze Reservoir in Shanxi, Gushan Reservoir in Shanxi, Houhe Reservoir in Shanxi, Chengdu in Sichuan, and Beijing. Gradually demonstrating his advantages, the miniaturization design of his sensor optical path system makes detection more convenient and flexible; The host operation is simple and fast, without the need for sampling, reagents, or instrument calibration, avoiding secondary environmental pollution caused by reagent methods, reducing the cost of instrument use, and demonstrating respect for users. It has been rated as an industry-leading instrument by users and has become a trend in the development of the analyzer market. Satisfied the user needs of the analytical instrument market.

Beidou Star Instrument not only sells products, but also provides customized comprehensive, practical, and industry expert wisdom services.

WQA4810-COD [Principle] According to the industry analysis method standard HJ/T 191-2005 "Technical Requirements for Ultraviolet (UV) Absorption Water Quality Automatic Online Monitoring Instrument". Based on the principle technology of dual channel photometer, using ultraviolet absorption photometer method.

WQA4810-CODOnline UV absorption (UV) water quality COD automatic monitoring instrumentInstrument Design

• Sensor origin: Imported high-precision laser

• Instrument design: There are two on-site detection methods: pipeline installation and immersion installation

• Pipeline detection: sensor and display integrated design, flange installation, sensor diameter 48mm, insertion depth 258mm;With calibration; Suitable for pipeline water source detection.

• Input based testing: The sensor and display are separated, with a sensor length of 236mm and a diameter of 48mm. The sensor can be used according toOn site design requirements; External monitor; The cable can be extended, and the depth of sensor input is ≤ 2 meters, especially suitable for open water source detection.

WQA4810-CODOnline UV absorption (UV) water quality COD automatic monitoring instrumentAdvantages of Instrument Technology

• No sampling or preparation of reagents is required.

• No need to calibrate the instrument, plug and test on-site.

• There is no harm to personal health from instruments and consumables.

• No additional fees for consumables.

How to use it

• This instrument has been calibrated before leaving the factory, and users can use it directly or prepare their own standard samples for recalibration.

• In the case of relatively single water pollutants, water samples can be directly tested.

• When the sample concentration is high or the color is heavy, the water sample can be diluted first and then tested.

• Range: Water phase (1-1000) mg/L

• Response time: 15 seconds

• Accuracy: ± 2.0%.

• Work pressure:<0.3 Mpa (Max<1.0 Mpa)

• Display: 1602 LCD

• Serial communication: RS485

• Analog output: (0~20) mA or (4~20) mA

• Environmental temperature: (-20~60) ℃, environmental humidity: (10~90)% RH

• Power:<10W

• Power supply: DC 12V or DC 24V

• Pipeline design: sensor and display integrated design, flange installation, sensor diameter 48mm, insertion depth 258mm; with calibration; Suitable for pipeline water source detection.

• Input based design: The sensor and display are separated, with a sensor length of 236mm and a diameter of 48mm. The sensor can be designed according to on-site requirements; External monitor; The cable can be extended, and the depth of sensor input is ≤ 2 meters, especially suitable for open water source detection.

• Maximum withstand pressure: 0.5mpa

• User calibration: two-point calibration

• Power information: DC 12V ± 5%, current<50mA (without cleaning brush)

• Power consumption:<7.5W

• Sensor material: 304 stainless steel

• Cable length: 10m (optional)

【 Application 】

• Surface water, various types of sewage, saline water, agricultural water

• Research on the laws of river water quality and water treatment processes

• Research on the regularity of pollution sources/discharge outlets

• Ultra pure water, industrial and boiler water, tap water

• Marine monitoring, fishery aquaculture, environmental monitoring

【 Instrument Series 】

• WQA4810-COD Online UV Absorption (UV) Water Quality Automatic Monitor

• HBD5-WQA4810-COD (UV) Handheld UV Absorption Chemical Oxygen Demand Analyzer

WQA4810-COD manufacturer price, please inquire with Beijing Beidouxing Industrial Chemistry Research Institute and Shaanxi Fusaisi Instrument Co., Ltd. for details