Our natural gas and methane Flow meters feature our proprietary MEMS thermal time-of-flight mass flow sensor installed in a laminar flow channel that forms a boundary layer ensuring laminar flow exists in the desired measurement area. Conventional thermal mass flow meters have sensitivity to the thermal properties of the gas as well as to the gas flow conditions. Our time of flight mass flow meter, utilizing the time of flight of micro pulses of thermal bursts of energy, has no sensitivity to temperature or gas properties when the system is “zeroed” in the desired gas. It is a pure “mass velocity” measuring machine that does not care about gas temperature or composition. This meter operates in the TIME DOMAIN so moisture, composition and temperature do not interfere with the measurement, unlike classical Thermal Mass Flow Meters that are completely dependant on the fluid composition and do not work well with moist gases.
Time of Flight Thermal mass flow meters for gases and air shipping from stock & configured for you. OEM customers welcome.
EASY to use Low Flow Mass Flow Meters. Check our stock & prices that beats our competition
Display
Features LARGE LCD display, shows the Flow Rate, Total Flow
The TFM-5700 Methane Flow meter outputs mass flow rate, total and outputs 4-20 mA as well as ModBUS RTU.
Methane Mass Flow Meter Flow Ranges
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1/2" NPT TMF5700 Flow Meter 0-20 SCFH, 1/2" NPT TMF5700 Flow Meter 0-650 SCFH, 1" NPT TMF5700 Flow Meter 0-240 SCFH, 1" NPT TMF5700 Flow Meter 0-2500 SCFH, 2" NPT TMF5700 Flow Meter 0-3000 SCFH, 2" NPT TMF5700 Flow Meter 0-6200 SCFH, |
Note: The maximum "safe velocity" within a pipe for natural gas and other flammable hydrocarbons is 30 m/s
Specifications
Natural Gas Flow Meter Specifications
Natural Gas Flow Meter Features
- Natural Gas Flow Meter for burners.
- Methane Gas Flow Meter for Billing
- General purpose gas mass flow meter
- Fast response time, customizable to 1 msec
- IP55 / NEMA enclosure
- Large dynamic range, over 100:1 S
- Serial, Analog and LCD interface
- Customer accessible 3 button user Interface
Dimensions
Methane and Natural Gas Flow Meter Dimensions
Methane and Natural Gas Flow Meter Dimensions link
Natural Gas Flow Meter Wiring Guide
Manual
NATURAL GAS FLOW METER PLUMBING GUIDE
TFM-5700 Series Natural Gas Flow Meter Principle of Operation:
Our TFM-5700 TOF Mass Flow meters feature our proprietary and state-of-the-art MEMS thermal time-of-flight mass flow sensor installed in a laminar flow channel that forms a boundary layer ensuring laminar flow exists in the desired measurement area.
The flow measurement, using our innovative time of flight MEMS technology, provides superior accuracy over conventional thermal mass flow meters. We utilize a a very low power micro heater that is pulsed where we measure the time the pulse takes to arrive at the measuring point located a precise distance away. The flow meter is a "mass velocity measuring machine" that measures the gas thermal properties to extract the density for true Mass Flow Rate Indication.
Why is this an improvement over conventional Thermal Mass Flow Meters?
Conventional thermal mass flow meters have sensitivity to the thermal properties of the gas as well as to the gas flow conditions. Our time of flight mass flow meter, utilizing the time of flight of micro pulses of thermal bursts of energy, has no sensitivity to temperature or gas properties when the system is "zeroed" in the desired gas.
It is a pure "mass velocity" measuring machine that does not care about gas temperature or composition. Consider conventional thermal mass flow meters you may have used in the past that have to be calibrated for the specific gas and do not do well when the temperature of the gas changes rapidly.
The TFM-5700 series of Mass Flow Meters has no such sensitivity. As well, these meters are blazing fast compared to conventional thermal mass flow meters, and they take VERY VERY VERY little power to run.
Note: Our thermal mass flow meters are an improvement to most "top brand" flow meters on the market, we invite you to investigate them.
Where to get Power Supplies, Gaskets, Nuts and Bolts Link
Videos
ModBUS RTU quick video:
Simple instructions and details regarding the use of ModBus RTU with the TFM5700 Series Methane and Natural Gas Mass Flow Meter flow meter..,
Video Below showing our Generic ModBus Program: