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Insertion Type Thermal Mass Flow Meter for Air, Nitrogen

China Insertion Type Thermal Mass Flow Meter for Air, Nitrogen, Find details about China Thermal Gas Mass Flow Meter, Thermal Mass Flow Meter from Insertion Type Thermal Mass Flow Meter for Air, Nitrogen

Model NO.
TMF
Measuring Media
Gas
Measuring Principle
Thermodynamic
Measurement Object
Closed Pipeline
Certification
JIS, DIN, ANS, CE, ISO
Output Signal
4~20mA, RS485, Pulse, Hart
Power Supply
24VDC,220VAC
Process Temperature
-40-450 Degree C
Sensor Type
Flange, Insertion, Clamp,
Construction
Compact and Remote
Pipe Material
Carbon Steel, Stainless Steel, Plastic, etc
Display
4 Lines LCD Display Mass Flow, Volume Flow in Stan
Trademark
Tianjin U-ideal
Transport Package
Export Standard Packing
Specification
Ex-proof: ExdIICT4
Origin
Tianjin, China
HS Code
90261000
Model NO.
TMF
Measuring Media
Gas
Measuring Principle
Thermodynamic
Measurement Object
Closed Pipeline
Certification
JIS, DIN, ANS, CE, ISO
Output Signal
4~20mA, RS485, Pulse, Hart
Power Supply
24VDC,220VAC
Process Temperature
-40-450 Degree C
Sensor Type
Flange, Insertion, Clamp,
Construction
Compact and Remote
Pipe Material
Carbon Steel, Stainless Steel, Plastic, etc
Display
4 Lines LCD Display Mass Flow, Volume Flow in Stan
Trademark
Tianjin U-ideal
Transport Package
Export Standard Packing
Specification
Ex-proof: ExdIICT4
Origin
Tianjin, China
HS Code
90261000
Thermal mass gas flow meter
Introduction
  1. Thermal gas mass flow meter is designed on the basis of thermal dispersion, and adopts method of constant differential temperature to measuring gas flow. It has advantages of small size, easy installation, high reliability and high accuracy, etc.
  2. The meter contains two platinum resistance temperature sensors. The thermal principle operates by monitoring the cooling effect of a gas stream as it passes over a heated sensor.
  3. Gas flowing through the sensing section passes over two sensors one of which is used conventionally as a temperature sensor, whilst the other is used as a heater.
  4. The temperature sensor monitors the actual process values whilst the heater is maintained at a constant differential temperature above this by varying the power consumed by the sensor.
  5. The greater the gas velocity, the greater the cooling effect and power required to maintain the differential temperature.
  6. The measured heater power is therefore a measure of the gas mass flow rate.
Features
  1. Measuring the mass flow or volume flow of gas
  2. Do not need to do temperature and pressure compensation in principle with accurate measurement and easy operation.
  3. Wide range: 0.5Nm/s~100Nm/s for gas. The meter also can be used for gas leak detection
  4. Good vibration resistance and long service life. No moving parts and pressure sensor in transducer, no vibration influence on the measurement accuracy.
  5. Easy installation and maintenance. If the conditions on site are permissible, the meter can achieve a hot-tapped installation and maintenance. (Special order of custom-made)
  6. Digital design, high accuracy and stability
  7. Configuring with RS485 or HART interface to realize factory automation and integration
 
DescriptionSpecification
MediumGas(Except acetylene)
Pipe sizeDN10-4000mm
Sensor typeStandard Insertion, Hot-tapped Insertion and Flanged
ConstructionCompact and Remote
Sensor Housing MaterialSS304 or SS 316
Pipe MaterialCarbon steel, stainless steel, plastic, etc
Velocity0.1-100N/ms
 
Medium temperature		Sensor: -30~+200ºC ;Max.350ºC Transmitter:-20-+45ºC
Working pressureMedium pressure≤1.6MPa
Accuracy±1.0~2.5%
 
Power supply		Compact type: 24VDC or 220VAC, Power consumption ≤18W Remote type: 220VAC, Power consumption ≤19W
Response time1S
 
Output		4-20mA (optoelectronic isolation, maximum load 500Ω), Pulse,RS485 (optoelectronic isolation) and HART
Alarm output1-2 line Relay, Normally Open state, 10A/220V/AC or 5A/30V/DC
 
Display		4 lines LCD display Mass flow, Volume flow in standard condition, Flow totalizer, Date and Time, Working time, and Velocity, etc.
Protection classIP65

Insertion Type Thermal Mass Flow Meter for Air, Nitrogen
Insertion Type Thermal Mass Flow Meter for Air, Nitrogen

Upper Range Value of Common Gas
(Unit: Nm3/h. The follow table can be extended) 
 
Nominal Dia.(mm)AirNitrogen(N2)Oxygen(O2)Hydrogen(H2)
1565653210
251751758928
3229029014445
4045045022670
50700700352110
6512001200600185
8018001800900280
100280028001420470
125440044002210700
1506300630003200940
200100001000056501880
250170001700088302820
3002500025000127204060
4004500045000226087200
50070000700003532511280
6001000001000005063816300
7001350001350006924022100
8001800001800009043229000
90022000022000011450077807
100028000028000014130081120
120040000040000020348091972
15006000006000003180010152
200070000070000056520018048

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