| Sign In | Join Free | My chinacomputerparts.com | 
 | 
| Categories | Gas Flow Meter | 
|---|---|
| Brand Name: | YUNYI | 
| Model Number: | MF4000 | 
| Certification: | CE | 
| Place of Origin: | China | 
| MOQ: | 1 Piece | 
| Price: | negotiable | 
| Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram | 
| Supply Ability: | 1000-5000pcs | 
| Delivery Time: | 10 work days | 
| Packaging Details: | cardboard box | 
| Company Info. | 
| Xi'an Yunyi Instrument Co., Ltd | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
The MF4000 Series is a advanced gas mass flow meter designed for low-flow gas measurement in pipelines with diameters of 3 mm to 8 mm. It utilizes Micro-Electro-Mechanical Systems (MEMS) thermal sensor technology to provide accurate and reliable mass flow measurements without requiring temperature or pressure compensation. Suitable for a wide range of industrial and medical applications, it offers high precision, excellent repeatability, and flexible output options.
The key specifications for the MF4000 series (with models MF4003 for 3mm diameter and MF4008 for 8mm diameter) are summarized in the table below:
| Parameter / Feature | MF4003 | MF4008 | Unit(s) | 
|---|---|---|---|
| Pipe Diameter | 3 | 8 | mm | 
| Max Flow Rate (Range) | 2, 3, 4, 5 | 10, 20, 30, 40, 50 | SLPM | 
| Accuracy | ±(1.5 + 0.2FS)% | ±(1.5 + 0.2FS)% | % | 
| Repeatability | 0.25% | 0.25% | % | 
| Response Time | 10 (default, configurable) | 10 (default, configurable) | ms | 
| Power Supply | 8~24 VDC, 50mA | 8~24 VDC, 50mA | - | 
| Output Options | RS232, RS485, 0.5~4.5 VDC | RS232, RS485, 0.5~4.5 VDC | - | 
| Operating Pressure | ≤0.5 | ≤0.5 | MPa | 
| Operating Temperature | -10 to +55 | -10 to +55 | °C | 
| Mechanical Connection | BSPT 1/4", 4/6/8mm | BSPT 1/4", 4/6/8mm | - | 
| Display & Interface | 4-digit LED, buttons for config | 4-digit LED, buttons for config | - | 
The MF4000 series stands out due to several important features:
High Precision & Wide Rangeability: Offers an accuracy of ±(1.5+0.2FS)% and a impressive 100:1 turndown ratio, allowing for reliable measurement across a broad flow range.
MEMS Sensor Technology: The core MEMS thermal sensor provides fast response times (as low as 10 ms), high stability, and measures mass flow directly, eliminating the need for external temperature or pressure compensation.
Flexible Output & Communication: Provides multiple output options including analog voltage (0.5~4.5 VDC), RS232, and RS485, facilitating easy integration into various control and monitoring systems.
User-Friendly Design: Features an LED display for showing instantaneous and cumulative flow, and allows for on-site parameter configuration via buttons.
Compact & Versatile Installation: Its compact design and multiple available connection types (threaded or quick-connect) make it easy to install in diverse applications and space-constrained environments.
Low Power Consumption: With a typical requirement of 50 mA, it is suitable for applications where power efficiency is important, including potentially battery-operated systems.
The MF4000 gas mass flow meter is versatile and is commonly used in:
Medical & Healthcare Equipment: Anesthesia machines, ventilators, respiratory devices, hospital oxygen supply systems, and patient monitoring.
Industrial Process Control & Automation: Monitoring and controlling gas flow (e.g., compressed air, O₂, N₂, H₂, He) in various manufacturing and processing applications.
Environmental Monitoring & Analysis: Air samplers, gas analyzers, and other equipment used for environmental detection and emission monitoring.
Laboratory & Analytical Instruments: Particle counters, spectrometers, and other precision instruments requiring accurate gas flow measurement.
General Purpose Low-Flow Gas Measurement: Any application involving low flow rates of clean, dry gases in small diameter pipes where reliable data is critical.
|   | 
 Wholesale Air mass flowmeter MF5700 MF5706 MF5712
                                                                                        
                                                        
                        
                        
                        
                                                            Wholesale Air mass flowmeter MF5700 MF5706 MF5712
                                                    
                        
                     MF5712 Digital Mass Flow Meter With Control Valve Natural LPG Gas
                                                                                    
                        
                        
                        
                                                            MF5712 Digital Mass Flow Meter With Control Valve Natural LPG Gas
                                                    
                        
                     High-Performance Roots Flowmeter with Exceptional Accuracy
                                                                                        
                                                        
                        
                        
                        
                                                            High-Performance Roots Flowmeter with Exceptional Accuracy
                                                    
                        
                     Yunyi Intelligent Digital Gas Flow Meter Minimizing Pressure Loss for Optimal Performance in Industrial Settings
                                                                                        
                                                        
                        
                        
                        
                                                            Yunyi Intelligent Digital Gas Flow Meter Minimizing Pressure Loss for Optimal Performance in Industrial Settings
                                                    
                        
                     Environmental Sector Suitable for measuring gas flow in air pollution control systems ensuring compliance with regulations
                                                                                        
                                                        
                        
                        
                        
                                                            Environmental Sector Suitable for measuring gas flow in air pollution control systems ensuring compliance with regulations
                                                    
                        
                     Wholesale Air Mass Flowmeter MF5700 MF5706 MF5712
                                                                                        
                                                        
                        
                        
                        
                                                            Wholesale Air Mass Flowmeter MF5700 MF5706 MF5712
                                                    
                        
                     Air Mass Flowmeter MF5700 MF5706 MF5712
                                                                                        
                                                        
                        
                        
                        
                                                            Air Mass Flowmeter MF5700 MF5706 MF5712
                                                    
                        
                     Yunyi Industry Smart Gas Natural Lpg Gas Flow Meter MethaneTurbine Smart Pipeline Roots Flow Meters
                                                                                        
                                                        
                        
                        
                        
                                                            Yunyi Industry Smart Gas Natural Lpg Gas Flow Meter MethaneTurbine Smart Pipeline Roots Flow Meters
                                                    
                        
                     Yunyi Smart Intelligent Digital LPG and Natural Gas Flow Meter Roots Flowmeter OEM Customizable
                                                                                        
                                                        
                        
                        
                        
                                                            Yunyi Smart Intelligent Digital LPG and Natural Gas Flow Meter Roots Flowmeter OEM Customizable
                                                    
                        
                     Roots Flow Meter Customizable OEM Natural Flowmeter I2c Rs485 Lpg Gas Regulator
                                                                                    
                        
                        
                        
                                                            Roots Flow Meter Customizable OEM Natural Flowmeter I2c Rs485 Lpg Gas Regulator