ShenzhenYijiajie Electronic Co., Ltd.
| Preheating | 3 minutes |
| Packaging Details | Box pack |
| Response time T90 | ≤ 1s |
| Payment Terms | L/C, D/A, D/P, T/T, Western Union |
| Flow range | 0 ~ 20 L/min |
| Supply Ability | 1500 |
| Concentration accuracy | ±1.5% FS |
| Flow accuracy | ±0.2 L/min |
| Flow resolution | 0.1 L/min |
| Delivery Time | 5-8 days |
| Concentration resolution | 0.1% VOL |
| Range | 20.5% ~ 95.6% VOL |
| Model Number | DM-OFC-B2 |
| Place of Origin | CHINA |
| Brand Name | YJJ |
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Product Specification
| Preheating | 3 minutes | Packaging Details | Box pack |
| Response time T90 | ≤ 1s | Payment Terms | L/C, D/A, D/P, T/T, Western Union |
| Flow range | 0 ~ 20 L/min | Supply Ability | 1500 |
| Concentration accuracy | ±1.5% FS | Flow accuracy | ±0.2 L/min |
| Flow resolution | 0.1 L/min | Delivery Time | 5-8 days |
| Concentration resolution | 0.1% VOL | Range | 20.5% ~ 95.6% VOL |
| Model Number | DM-OFC-B2 | Place of Origin | CHINA |
| Brand Name | YJJ | ||
| High Light | Ultrasonic oxygen concentration sensor ，TOF O2 flow module ，Medical air flow sensor with pressure compensation | ||
Product Description:
YJJ DM-OFC-B2 Ultrasonic Oxygen Concentration Flow Sensor TOF O2 Module Pressure Compensation
Features:
Electrical parameters- Supply voltage: DC 5V ~ 12V (typical DC12V)
- Average working current: ≤45mA
- Communication output: UART TTL 3.3V (9600 baud rate), customizable RS485
- Built-in: **Dual temperature + pressure compensation algorithm**, eliminating measurement deviation caused by intake pressure fluctuations
Environmental conditions
- Working temperature: 5℃ ~ 50℃
- Working humidity: 5~85% RH, **no condensation**
- Maximum tolerance pressure: 150kPa
- Sample gas requirements: Pre-filtering and desalination, no liquid water, large amounts of dust, other impurity gases are prohibited
- Service life: ≥10 years, no electrochemical consumable components, long-term free from frequent calibration
Physical specifications
- Dimensions: 120.5 × 22 × 22 mm
- Weight: 25g
- Gas path: Direct-through gas path, extremely low pressure loss, flexible installation for inlet and outlet gases
Product selling points (self-built website)
1. TOF ultrasonic technology, **collecting both oxygen purity + flow rate parameters simultaneously**, single module replaces two sensors
2. New addition of **pressure compensation**, still stable in pressure fluctuation conditions, suitable for HFNC high-flow equipment
3. Flow upper limit increased to 20L/min, covering the demand of large-flow oxygen generators
4. No consumable materials, long service life, significantly reducing maintenance and calibration costs
5. UART digital serial output, convenient for integration into embedded motherboards, ODM development / maintenance replacement are possible
Specifications:
| Average operating current | ≤ 40mA |
| Communication output | UART TTL 3.3V |
| UART TTL 3.3V | 5℃ ~ 50℃ |
| Working humidity | 5~85% RH |
| Maximum tolerance pressure | 150kPa |
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2006
Total Annual:
900000-1000000
Employee Number:
50~80
Ecer Certification：
Verified Supplier
Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph... Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph...
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