Product Overview
The AFM07 Series Gas Mass Flow Meter, developed by Aosong, integrates mass flow and temperature measurement based on thermal measurement principles and Aosong's proprietary MEMS mass flow chip. It offers excellent performance, stability, and reliability. This device accurately measures gas mass flow by detecting resistance changes, providing advantages such as high precision, stability, wide temperature tolerance, good linearity, fast response times, high integration, and cost-effectiveness. It features an LCD screen for displaying instantaneous and cumulative flow, with a 90 rotatable display for flexible installation angles. The compact AFM07 series is suitable for various gas flow measurement scenarios, including air, nitrogen, argon, carbon dioxide, and oxygen (excluding flammable, explosive, corrosive, or wet gases). It is widely used in research, environmental monitoring, tobacco, smart agriculture, food, and pharmaceutical industries. The product undergoes rigorous factory calibration, enabling direct output of precise flow data, reducing user costs and development complexity.
Product Attributes
- Brand: Aosong ()
- Origin: China (implied by Chinese text and company name)
- Housing Material: PBT
- Air Duct Material: PBT
- Display: LCD
- Output Interfaces: RS485, NPN open collector, 1-5V linear voltage
- Power Supply: 9-24V DC
- Cable Length: 30cm
- Cable Material: UL2464
- Connector Type: PHB2.0 snap-fit double-row terminal line (2*4)
Technical Specifications
| Parameter | Description | AFM0710 | AFM0725 | AFM0750 | AFM0711 |
|---|---|---|---|---|---|
| Range | 0~10L/min | 0~25L/min | 0~50L/min | 0~100L/min | |
| Accuracy | 3% F.S. | ||||
| Repeatability | 1% F.S. | ||||
| Response Time | 50ms | ||||
| Max Working Pressure | 0.8MPa | ||||
| Standard Calibration Gas | Air (25, 1 atm) | ||||
| Working Temperature | -10~+60 | ||||
| Power Consumption | Typical | 0.85W | |||
| Weight | 56g | ||||
| Communication Protocol | RS485 | Modbus RTU | |||
| Baud Rate Options | 4800/9600/19200/115200bps | ||||
| NPN Outputs | Number | 2 (Upper/Lower limit alarm) | |||
| Voltage Output | Range | 1~5V Linear | |||
| Voltage Output Coefficients | AFM0725/AFM0750 | 0.16 (for 25L/min range) | 0.08 (for 50L/min range) | ||
| Display Units | Cumulative Flow | L (ft10) | |||
| Display Units | Instantaneous Flow | L/min (CFM10) | |||
| Dimensions (mm) | (Refer to Figure 5 in source) | Refer to diagram | |||
2504101957_Aosong-AFM0750H00_C45351358.pdf
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