How do I choose a mass flow controller?
How do I choose a mass flow controller?
ABSTRACT. There are four main considerations to evaluate in order to specify a Thermal Mass Flow Controller (MFC) for your application. Flow range, gas conditions, desired accuracy, and communications are all important constraints.
How do you calculate gas correction factor?
To determine corrected flowrate: find the gas for which the meter is calibrated in the left column, move to the right to the gas that is being used. Multiply the flowrate indicated on the meter by the correction factor. This will equal an approximation of the flowrate of the gas being used.
What is gas conversion factor?
PRESSURE/CONVERSION/CORRECTION FACTOR AND HEATING VALUE. To convert the volume used to gas energy consumed, the volume is multiplied by the pressure factor and the heating value. These factors are measured by AGN and averaged out over the billing period.
How do you calculate corrected flow?
We begin with the compressible mass flow equation and, using algebra, we divide both sides of the equation by the area, multiply both sides by the square root of the total temperature, and divide both sides by the total pressure. The corrected weight flow per unit area is just a function of the Mach number.
What is SCCM in flow rate?
Standard cubic centimeters per minute (SCCM) is a unit of flow measurement indicating cubic centimeters per minute (cm³/min) in standard conditions for temperature and pressure of a given fluid. These standard conditions vary according to different regulatory bodies.
How does a mass flow controller work?
A mass flow controller automatically controls the flow rate of a gas according to a set flow rate sent as an electric signal, without being affected by use conditions or changes in gas pressure. Flow rates can be roughly classified into two types: volumetric flow and mass flow.
What is pressure correction factor?
CORRECTION FACTOR The Pressure Correction Factors are used to convert the gas volumes as measured by basic meters to the standard volume which is then multiplied by the average heating value for the billing period to obtain the energy.
How do you convert bbl to BOE?
There are 42 gallons (USA) / 35 gallons (UK) of oil in a barrel. This is equal to 159 litres. Natural gas reserves are measured in per thousand cubic feet (MCF). 6000 cubic feet (6MCF) has the same energy potential as a barrel of oil, so 6 MCF is a BOE equivalent of 1 barrel.
What corrected airflow?
Corrected Flow is the mass flow that would pass through a device (e.g. compressor, bypass duct, etc.) if the inlet pressure and temperature corresponded to ambient conditions at Sea Level, on a Standard Day.
What is corrected speed?
Corrected Speed is the speed a component would rotate at if the inlet temperature corresponded to ambient conditions at Sea Level, on a Standard Day (i.e. 288.15K).
Why choose Brooks mass flow controllers?
In response to this, Brooks pioneered smarter mass flow controllers with embedded self-test routines and introduced an independent diagnostic/ service port to provide the user with a simple interface, for troubleshooting without disturbing flow controller operation. IP66 Rating
What are the different models of smart mass flow controllers?
and MF64S and Smart Mass Flow Controller models: MF50S, MF51S and MF53S. Digital communication The presence of a computer icon to the left of the text (as shown here) Denotes that the accompanying text refers to digital communication.
How does the Brooks MF-series Smart mass flow meter work?
The Brooks MF-series Smart Mass Flow Meter is a stand-alone instrument with microprocessor-based electronics on board. The MF-series Smart Mass Flow Controller has an integrally-mounted control-valve module with which table gas flows can be achieved.
What is the PED for the Brooks thermal mass flow meter?
metallici della Brooks Instrument della Thermal Mass Flow Meter / Controller Series. Questi strumenti seguono la normativa (PED) Direttiva CE 97/23/EC per gli strumenti in pressione. Consultare le autorità locali per i codici di