YJJ MF5706-G-20-B-A 0-20L/min MEMS Micro Thermal Gas Mass Flow Meter

Product Description:

YJJ MF5706-G-20-B-A 0-20L/min MEMS Micro Thermal Gas Mass Flow Meter

Features:

I. Model Explanation

MF5706: Series specification (small diameter body)

G: General gas type

20: Range 0 - 20 L/min (SLPM)

B: LCD local digital display

A: Standard RS485-Modbus communication output

II. Core Technical Parameters

Measurement Principle: MEMS thermal mass flow, no need for temperature and pressure compensation, directly measures mass flow

Range: 0 - 20 L/min (liters/minute)

Measurement Accuracy: ±(2% reading + 0.5% FS); Repeatability ≤ 0.5% FS

Response Time: ≤ 2 seconds; Range ratio 80:1, start measurement even at very small flow

Medium: Air, oxygen, nitrogen, argon, carbon dioxide, etc. inert / common process gases

Working Pressure: ≤ 0.8 MPa; withstands 1.0 MPa pressure, pressure loss ≤ 600 Pa

Temperature: medium -20 to 70℃, environment -10 to 55℃

Interface: NPT1/4 external thread (DN6), body size 67×40mm, brass valve body

Power Supply: 4×AA batteries (battery life > 60 days) / external 5 - 12VDC DC power supply, power consumption < 10mW

Display: LCD screen, instantaneous flow (L/min) + cumulative flow (Nm³), supports total reset and over-limit alarm

Output: RS485 Modbus-RTU, industrial control PLC networking data collection (A code standard communication)

III. Product Applications

1. Medical equipment (main force)

Respiratory ventilators / anesthesia machine oxygen and air supply branch flow monitoring, precise measurement of oxygen supply instantaneous and cumulative gas consumption

Medical oxygen generators, hyperbaric oxygen chambers, portable oxygen supply devices flow control, billing measurement

2. Laboratory instruments

Gas chromatography, gas analyzers, leak detectors carrier gas (N₂/Ar/O₂) precise gas supply, small flow quantitative control

Scientific research gas ratio, aging test gas flux statistics

3. Industrial gas management

Laser welding, plasma cutting nitrogen / protective gas consumption measurement;

Food preservation nitrogen filling, packaging machine inflation quantitative monitoring;

Workshop compressed air branch gas consumption statistics, leak detection

4. Environmental protection / gas detection

Smoke sampling, exhaust gas detector bypass small flow gas sampling measurement, gas generator outlet gas monitoring.

IV. Series Distinction

MF5706-G-10: 0 - 10 L/min (smaller range)

MF5708-G-100: 0 - 100 L/min (medium-large flow range)

MF5712-G-250: 0 - 250 L/min (large flow range)

Specifications: