Related Products
A mass flow meter is a type of flow meter and is a device that accurately measures the mass flow rate of a fluid moving through a pipe. Mass flow rate differs from volumetric flow rate – which measures volume per unit time. Mass flow rate measures mass per unit time. Mass flow measurement is the basis of most recipe formulations, material balance determinations, billing, and custody transfer operations throughout industry. With these being the most critical flow measurements in a processing plant, the reliability and accuracy of mass flow detection is very important. Coriolis mass flow meter measurement is the basis of most recipe formulations, material balance determinations, billing, and custody transfer operations throughout industry. With these being the most critical flow measurements in a processing plant, the reliability and accuracy of mass flow detection is very important.
The two flow technologies that are used to measure mass flow are inertial and thermal. Inertia meters, known as Coriolis flow meters, use the Coriolis effect to measure mass flow rate. When a fluid is flowing in a pipe and it is subjected to Coriolis acceleration through the mechanical introduction of apparent rotation into the pipe, the amount of deflecting force generated by the Coriolis inertial effect will be a function of the mass flow rate of the fluid. Thermal mass flow meters also measure the mass flow rate of liquids and gases directly and the function on the principles of heat transfer using a heating element and temperature sensors.
Gas mass flow meter working principle
An industrial thermal mass flow meter measures either the mass velocity at a point in aflowinggas, or the total mass flow rate through a channel or pipe. Learn more about thermal mass flow meter technology used to measure gas mass flow meters more efficiently.
Benefits when using our gas mass flowmeters:
High accuracy
Compact design
Excellent repeatability for a reliable process
Equipped with an on-board gas conversion model
Database with customer selectable gases
Reduction in cost of ownership
Ultra-low flow gas mass flow meter with pump for catalyst application:
Analysis of coating application for car headlamps using gas density meter
Gas flow meter for leakage test of air ducts
Gas Mass Flow Measurement
Positive displacement meters collect a fixed fluid volume, release and refill the fluid, then tally the times the chamber is filled to quantify flow.
Flow measurement devices rely on the flowing stream's strength, as it prevails over a known constriction and indirectly calculates flow.
Technical Data for Sincerity TMF- Series Mass Flow Meters
0.5sccm – 6000 slm Full Scale
Standard Specifications (Contact Beijing Sincerity for available options.)
Performance | TMF -Series Mass Flow Meter |
Accuracy at calibration conditions after tare | ± 1% of Full Scale |
High Accuracy at calibration conditions after tare | ±0.5% of Full Scale High Accuracy option not available for units ranged under 5 sccm or over 3000 slm |
Repeatability | ± 0.2% Full Scale |
Zero Shift and Span Shift | 0.2% Full Scale / ºCelsius / Atm |
Operating Range / Turndown Ratio | 1% to 100% Full Scale /100:1 (200:1 optional) |
Maximum Measurable Flow Rate | 100% Full Scale |
Typical Response Time | <500 ms |
Leakage Rate | 1×10-9 atm ·cc/s He |
Operating Conditions | TMF -Series Mass Flow Meter |
Mass Reference Conditions (STP) | 25ºC & 14.696 psia (standard — others available on request) |
Operating Temperature | 0 to +50 ºCelsius |
Humidity Range (Non–Condensing) | 0 to 90% |
Maximum Internal Pressure (Static) | 145 psi(g)/10bar(g) optional: Max.1450psi(g)/100bar(g) |
Pressure Differential (Inlet to Outlet) | 145 psi(d)/10bar(d) |
Proof Pressure | 1450psi(g)/100bar(g) |
Mounting Attitude Sensitivity | None |
Ingress Protection | IP40 |
Wetted Materials |
316L 417J1 Stainless Steel, Viton, Heat Cured Silicone Rubber, Glass Reinforced Polyphen ylene Sulfide, Heat Cured Epoxy, Aluminum, Gold, Steel, Silicon, Glass. If your application demands a different material, please contact Grylls. |
Communications / Power | TMF -Series Mass Flow Meter | |
Monochrome LCD or color TFT display Integrated multifunction button | Display Mass Flow, Cumulative Flow, conversion gas coefficient and other functions | |
Digital Communications Options1 | RS-232 Serial / RS-485 Serial / Modbus RTU / PROFIBUS / EtherNet/IP / DeviceNet / Modbus TCP/IP / EtherCAT / PROFIBUS-DP | |
Analog Signal2 Options | 0-5 Vdc / 1-5 Vdc / 0-10 Vdc / 4-20 mA | |
Optional Secondary Output Signal2 | 0-5 Vdc / 1-5 Vdc / 0-10 Vdc / 4-20 mA | |
Electrical Connection Options | 9-pin D-sub (DB9) / 15-pin D-sub (DB15) / RJ11 | |
Supply Voltage | 24 Vdc / ±15Vdc | |
Supply Current | under 500slm : 0.50 Amp ; above | 500slm：1 .0Amp |
1. The Digital Output Signal communicates Mass Flow, Cumulative Flow. 2. The Analog Output Signal and Optional Secondary Analog Output Signal communicate your choice of Mass Flow, Cumulative Flow. | ||
Features | TMF -Series Mass Flow Meter |
Gas conversion coefficient V2.0 | Gas conversion coefficient provides 60 Preloaded Gas Calibrations: See the following page for a complete list. If your application calls for a gas not on this list, please let us know. We can also calibrate to a wide variety of complex gas mixtures. |
Range Specific Specifications
Full Scale Flow Mass Meter 1 | Mechanical Dimensions 2 | Process Connections3 |
TMF-series 0.5-10 sccm | ||
TMF-series 10-100 sccm | TMF- Standard series and Digital series 4.72”H x 3.15”W x 1.22”D |
G1/4” Female Thread |
TMF-series 100-500 scmm | ||
TMF-series 500-1000 sccm | ||
TMF-series 1000-2000 sccm | GM-Intelligent series | |
TMF-series 2-5 slm | ||
4.92”H x 2.76”W x 1.14”D | G3/8” Female Thread | |
TMF-series 5-20 slm | ||
TMF-series 20-30 slm | ||
TMF-series 30-100 slm |
5.12”H x 3.74”W x 1.38”D |
G3/8” Female Thread |
TMF-series 100-200 slm | ||
TMF-series 200-300 slm | ||
TMF-series 300-500 slm |
6.30”H x 6.89”W x 2.91”D |
G1/2” Female Thread |
TMF-series 500-1000 slm | ||
TMF-series 1000-2000 slm | ||
TMF-series 2000-3000 slm | ||
TMF-series 3000-6000 slm | 6.30”H x 6.89”W x 2.91”Dx2 | Double G1/2” Female Thread |
1. Lower Pressure Drops Available mass flow meters please contact Sincerity. 2. See drawings for metric equvalents. 3. Compatible with tube, face seal, push connect and compression adapter fittings. VCR and SAE connections upon request. | ||
TMF-Standard series and Digital series
0.5sccm-30slm
TMF-Intelligent series
0.5sccm-30slm
TMF-Standard series and Digital series 30slm-300slm
TMF-Intelligent series 30slm-300slm
TMF-Digital series
300slm-3000slm
TMF-Intelligent series
300slm-3000slm
Appendix: Sincerity Gas conversion coefficient V2.0
*For more single gas coefficients or mixed gas coefficients, please provide the specific heat and density of the gas medium and contact Beijing Sincerity for calculation.
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