Hot Selling RS485 Compressed Air Digital Oxygen Thermal Mass Gas Flow Meter

Highly accurate RS485 Compressed Air Digital Oxygen Thermal Mass Gas Flow Meter. Factory direct pricing and fast shipping available. Order now!
Request a Quote

PRODUCTS DETAILS

  • Overview
  • Product Description
  • Product Parameters
  • Why Choose Us
  • Products Size
  • Installation Instructions
  • Model Selection
Overview

Basic Info.

Model NO.
ATMF
Application
Industrial Production
Type
Volume Type Flow Meter
Measuring Media
Gas
Measuring Principle
Thermodynamic
Measurement Object
Closed Pipeline
Certification
CE, ISO
Power Supply
DC24V or AC220V
Working Pressure
Medium Pressure Less Than 4.0MPa
Response Speed
1s
Pipe Material
Carbon Steel, Stainless Steel, Plastic, etc
Output Signal
4-20mA, Pulse, RS-485, Hart
Ingress Protection
IP65
Transport Package
Carton Box with PP Film Wooden Box
Origin
China
HS Code
9026801000
Production Capacity
500 Piece/ Week

Product Description

 
Product Description

The thermal  mass flow meter is an instrument for measuring gas flow by using the principle of thermal diffusion. It  measure gas mass directly and  also  it  needn't  temperature and  pressure compensation.

The thermal mass flow meter sensor part is composed of two reference platinum resistance temperature sensors (RTDS),  one is the speed sensor RH, and the other is the temperature sensor RMG, which measures the temperature change of the gas. When the two RTDS are placed in the measured gas, one sensor RH is heated and the other sensor RMG is used to sense the measured gas temperature. As the gas flow rate increases, the airflow carries away more heat, and the temperature of the sensor RH drops. The temperature difference between the two RTDS is linearly related to the flow rate, and then this relationship is converted into a linear output through micro-electronic control technology, thus to realise the measurement of gas flow.

Hot Selling RS485 Compressed Air Digital Oxygen Thermal Mass Gas Flow Meter

Product Parameters
Performance Technical parameter
Structural form Insertion type In- line type
Measuring medium All gases (except Acetylene)
Pipe diameter range Caliber DN32 or higher DN10~DN2000mm
Velocity range 0.1~120Nm/s
Precision ±1~2.5%
Operating temperature Sensor:-40ºC~+220ºC        convertor:-20ºC~+45ºC
Working pressure Medium pressure≤2.5Mpa Medium pressure≤4.0Mpa
Power supply DC24V or AC220V≤18W
Response speed 1s
Output signal 4-20mA (Photoelectric isolation, large load 500Ω),pulse,RS-485 (photoelectric isolation),HART agreement
Alarm 1-2 relay normally open contact,10A/220V/AC,*/30V/DC
Type of supply Separate structure, integrated structure
Pipe material Carbon steel, stainless steel, plastic, etc
Field display Four lines of Chinese liquid crystal display
Display content Mass flow, standard volume flow, cumulative flow, standard time, cumulative running time, standard flow rate, etc
Protection grade IP65
Sensor material Stainless steel Stainless steel, carbon steel
 

 

Why Choose Us

Hot Selling RS485 Compressed Air Digital Oxygen Thermal Mass Gas Flow MeterHot Selling RS485 Compressed Air Digital Oxygen Thermal Mass Gas Flow MeterHot Selling RS485 Compressed Air Digital Oxygen Thermal Mass Gas Flow MeterHot Selling RS485 Compressed Air Digital Oxygen Thermal Mass Gas Flow Meter

Products Size

Hot Selling RS485 Compressed Air Digital Oxygen Thermal Mass Gas Flow Meter

Hot Selling RS485 Compressed Air Digital Oxygen Thermal Mass Gas Flow Meter

Installation Instructions

 

Hot Selling RS485 Compressed Air Digital Oxygen Thermal Mass Gas Flow Meter

Installation Tips

  1. When installing the instrument, it should be far away from elbows, obstacles, irregular diameters, and valves to ensure a stable flow field. it requires a long straight pipe, with the upstream straight pipe length greater than 10xD and the downstream straight pipe length greater than 5xD.
  2. When the site cannot meet the requirements of the straight pipeline, the gas rectifier can be connected in series to greatly reduce the requirements of the straight pipe section.
  3. If the flow meter is installed outdoors, the meter shade should be added to avoid the sun and rain.
  4. Do not install in strong vibration and contain a lot of corrosive gas environment.
  5. Do not share the power supply with the equipment that pollutes the power supply such as the frequency converter and welding machine, and if necessary, install the purified power supply for the instrument.
  6. Before installation, please reconfirm the connection method of the pipe segment and prepare flange connection related items such as gaskets and bolts. Production must be stopped before installation, and the relevant regulations of the factory must be strictly observed.
Model Selection

Hot Selling RS485 Compressed Air Digital Oxygen Thermal Mass Gas Flow Meter


Hot Selling RS485 Compressed Air Digital Oxygen Thermal Mass Gas Flow MeterHot Selling RS485 Compressed Air Digital Oxygen Thermal Mass Gas Flow Meter

Contact us

Please feel free to give your inquiry in the form below We will reply you in 24 hours