Product Description:

YJJ AMS2000R12 MEMS Thermal Gas Mass Flow Meter | RS485 Modbus for Lab Gas Monitoring

Features:

Principle: MEMS thermal gas mass flowmeter with LCD display, RS485 Modbus RTU output, simultaneously measuring instantaneous flow, cumulative flow, and gas temperature.

General performance parameters

- Measurement accuracy: ±3%FS

- Repeatability: ±1%FS

- Response time: 50ms

- Power supply: 9~24V DC

- Power consumption: <0.85W

- Maximum pressure resistance: 0.8 MPa

- Operating temperature: -10 ~ +60 ℃

- Calibration reference: air @25℃, 101kPa

- Compatible gases: air, nitrogen N₂, argon Ar, CO₂, oxygen O₂ (dry and non-corrosive gas, prohibited flammable and explosive)

- Display: LCD screen, supports screen rotation, brightness adjustment, displays instantaneous flow, cumulative flow, temperature, and device address

- Communication interface: M8 4-pin aviation connector, RS485 Modbus RTU

- Baud rate: 4800/9600/19200/115200 bps

- 8N1, default slave station address 0x01, supports multi-machine bus

- Shell: PC casing; Flow channel: 6061 aluminum alloy

- Installation straight pipe requirement: upstream ≥ 10× inner diameter, downstream ≥ 5× inner diameter, otherwise accuracy deviation

AMS2000 original factory standard range table (R suffix)

| AMS2000R00 | 0~500 L/min | RC1/2 | 15mm |

| AMS2000R01 | 0~300 L/min | RC1/2 | 15mm |

| AMS2000R02 | 0~200 L/min | RC1/2 | 15mm |

| AMS2000R03 | 0~100 L/min | RC3/8 | 10mm |

| AMS2000R04 | 0~50 L/min | RC3/8 | 10mm |

| AMS2000R05 | 0~25 L/min | RC1/4 | 7mm |

| AMS2000R06 | 0~10 L/min | RC1/4 | 7mm |

| AMS2000R07 | 0~2 L/min | RC1/4 | 7mm |

| AMS2000R08 | 0~500 sccm | RC1/4 | 7mm |

| AMS2000R09 | 0~50 sccm | RC1/4 | 7mm |

Typical applications

Laboratory gas supply monitoring, oxygen generation / aeration, packaging gas lines, fire testing, university research, food and medicine, environmental ducts, automated gas distribution

Specifications: