Shenzhen Besian Intelligent Technology Co., Ltd. (abbreviated as 'Besian Intelligent Technology'), the company focuses on the R&D and application of environmental protection + IoT technology, deeply cultivating the environmental detection field for over ten years, accumulating rich industry environmental detection experience through continuous R&D investment and technological innovation. Currently, the company has formed multiple mature product lines, including gas sensors, gas detection modules, gas alarms, water quality sensors, meteorological sensors, and other environmental detection terminals. At the same time, Besian can customize detection needs for various application environments for customers; thousands of gas detection instrument products, conventional water quality detection products, and conventional meteorological detection products. Widely used in petroleum, chemical, smelting, electric power, environmental protection, fire protection, coal, metallurgy, ships, medicine, scientific research institutes, gas pipe networks, safety protection, and other fields.

Medical Oxygen Detector (Online Type)Model: BSA/QT

Product Description: Online industrial oxygen detector, continuous online detection of oxygen concentration in various medical environments and special environments, adopting imported electrochemical oxygen sensor and microcontroller technology, with fast response speed, high measurement accuracy, good stability and repeatability.

Technical ParametersDetection Gas: Oxygen (O2), imported electrochemical oxygen sensorMeasurement Range: 0~2000, 5000, 10000, 30000PPM, 0~30%, 100%VOL optional

Resolution: 1PPM, 0.01%VOL       Response Time: ≤20 seconds (T90)          Detection Accuracy: ≤±3% (depending on specific sensor)              Linearity Error: ≤±1%

Zero Drift: ≤±2% (F.S)              Recovery Time: ≤20 seconds                       Gas Expansion: Supports 1-6 sensors (optional)                   Repeatability: ≤±1%

Explosion-proof Certification: CNEx16.0547              Protection Rating: IP65                          Temperature & Humidity: Optional accessory,                                     Temperature Detection Range: -40 ~ 120℃

Humidity Detection Range: 0-100%RH           Detection Method: Diffusion type, Flow-through type, Pump suction type optional           Installation Method: Wall-mounted, Pipeline type, Flow-through type           

Signal Output: 

① 4-20mA                 Signal: Standard 16-bit precision 4-20mA output chip, transmission distance 1Km

② RS485 Signal: Adopts standard MODBUS RTU protocol, transmission distance 2Km

③ Voltage Signal: 0-5V, 0-10V output, self-settable

④ Switch Quantity Signal: Standard 2 groups of relays, optional third group of relay, passive contact, capacity 125VAC/0.3A 30VDC/1A

Transmission Method: 

① Cable Transmission: 3-core, 4-core cable, long-distance transmission (1-2 km)

② IP Transmission: Supports IP protocol, uses fiber optic, network cable, real-time long-distance transmission via intranet, internet (optional)

③ GPRS Transmission: Can be built-in GPRS module, real-time remote data transmission, no distance limit (optional)

④ Wireless Transmission: Supports 433Mhz, wireless radio transmission mode, transmission distance 2-10Km, depending on different power (optional)Receiving Device: User computer, control alarm, PLC, DCS, mobile phone, tablet, etc. optionalAlarm Method: On-site sound and light alarm, external alarm, remote controller alarm, computer data acquisition software alarm, SMS alarm optional

Alarm Settings:

 ① Standard configuration two-level alarm, optional three-level alarm

② Gas sensor can be set for conventional high/low alarm, interval control two alarm modes, can control gas concentration interval rangeShell Material: Die-cast aluminum + sandblasting oxidation/fluorocarbon paint, explosion-proof and anti-corrosion

Working Environment: Working Temperature -30 ~ 50℃ (higher temperature and humidity environment use requires customization or optional pretreatment system)Working Humidity ≤95%RH, no condensationWorking Pressure 90 ~ 110KpaWorking Power 24VDC (12~30VDC)Electrical Interface 3/4″NPT internal thread, 1/2″NPT internal thread, supports 2 electrical connection methods simultaneously

Dimensions Weight: 170*140*95) 1.5Kg (Net Weight)

Standard Accessories: Manual, Certificate of Conformity

Executive Standards: GB3836.1-2010 "Environment Part 1: Equipment General Requirements"

GB3836.2-2010 "Environment Part 2: Equipment Protected by Flameproof Enclosure 'd'"