Model Comparison Table

Key Features:

1. High Sensitivity: Capable of detecting very small dynamic flow rates.
2. Multi-Sensor Integration: Achieves a range ratio of 100:1 or higher through integration on a single chip.
3. High Impact and Condensate Resistance: Robust sensor design to withstand impacts and resist condensation.
4. Thermal Mass Flow Measurement: Ensures high-precision flow measurement without needing temperature and pressure compensation.
5. Fast Response Time: Quick reaction to changes in flow conditions.
6. High Zero-Point Stability: Maintains stable zero-point measurement.
7. Low Power Consumption and Pressure Loss: Efficient operation with minimal energy usage and pressure drop.
8. Versatile Output Modes: Data can be uploaded via communication interface, queried by an upper computer, or output as a linear analog signal.
9. High Stability and Precision: Reliable measurement performance with excellent repeatability.
10. Threaded Connection: Easy installation and use with standard threaded connections.

Performance Parameters:

• Specifications: 50, 100, 200, 500, 800, 1000 SCCM; 2, 5, 8, 10, 12 SLPM
• Scale Ratio: 100:1
• Power Supply Voltage: 7~24VDC, 100mA (customizable)
• Accuracy: ±1.0 %FS
• Repetitiveness: 0.25 %
• Response Time: 67 ms (default, customizable)
• Maximum Pressure: 1.0 MPa
• Communication Mode: RS 485 (MODBUS)
• Output Method: Analog output of 0.5-4.5 VDC, LoRa (optional)
• Display Mode: Instantaneous flow (SLPM); cumulative flow (SL)
• Temperature: Medium temperature (-10~65℃), ambient temperature (-25~85℃)
• Working Humidity: <100% RH (no ice, no condensation)
• Weight: 0.295 kg
• Connection: NPT 1/8” (customizable)
• Valve Type: Normally closed
• Calibration Conditions: Air, at 20℃, 101.325kPa

Output Pin Definitions: