Product Description:

YJJ DM-OFC-B0 Ultrasonic Oxygen Concentration & Flow Sensor O2 Purity Module for PSA Oxygen Concentrator

Features:

Basic Information

- Model: DM-OFC-B0

- Detection principle: Ultrasonic flight time TOF, using the time difference of the forward and reverse flow of ultrasonic waves to simultaneously measure oxygen concentration and flow rate

- Measuring medium: Binary mixture of oxygen and nitrogen (output gas from a molecular sieve oxygen generator)

- Application: Integrated into **medical oxygen generators and industrial oxygen equipment**, for real-time online monitoring of oxygen purity and output flow rate; equipment comes with a replacement sensing module

- Core advantages: No consumable components, no issue of electrolyte depletion in electrochemical oxygen sensors, long-term stability, no need for frequent calibration

Core measurement parameters

- O₂ concentration range: **20.5% ~ 95.6% VOL**

- Concentration resolution: 0.1% VOL

- Concentration accuracy: ±1.5% FS (5~45℃)

- Flow rate range: **0 ~ 10 L/min**

- Flow rate resolution: 0.1 L/min

- Flow rate accuracy: ±0.2 L/min

- Response time T90: ≤ 1s

- Preheating: Ready to work upon power-on, reaches full precision indicators within 3-5 minutes

Electrical parameters

- Supply voltage: DC 5V ~ 12V (typical DC 12V)

- Average working current: ≤ 40mA

- Communication output: UART TTL 3.3V (9600 baud rate), can be selected with analog voltage output as needed

- Built-in: **Temperature compensation algorithm**, reduces environmental temperature drift

Environmental conditions

- Working temperature: 5℃ ~ 50℃

- Working humidity: 5~85% RH, **no condensation**

- Maximum tolerance pressure: 150kPa

- Sample gas requirements: Gas needs pre-filtering, no condensate water, no large amount of dust

- Service life: ≥ 10 years

Physical specifications

- Dimensions: 120.5 × 22 × 22 mm

- Weight: 25g

- Gas path: No direction restrictions for inlet and outlet gas, direct-through gas path, minimal pressure loss

Product selling points (for self-built stations)

1. Ultrasonic TOF technology, simultaneously collecting two parameters of oxygen concentration and flow rate, single module replaces 2 sensors

2. No consumable materials, long lifespan, no drift over long-term use, reduces maintenance and calibration costs

3. Built-in temperature compensation, stable and reliable measurement under oxygen generator conditions

4. UART digital serial port output, convenient for integration into embedded motherboards, compatible with medical / industrial PSA oxygen generation equipment

5. Direct-through gas path, low pressure loss, easy installation, suitable for ODM of complete machines and maintenance replacement

Specifications: