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  • Understanding Capillary Tube Thermal Mass Flow Meters & Controllers:
    core technology series based on excerpts from Sierra's Founder and Chairman (Also my Father), Dr. John G. Olin's, white paper entitled, "Capillary Tube Thermal Mass Flow Meters & Controllers- A User's Guide." This "User's Guide" is designed to educate both flow beginners and experts in the most
  • Capillary Tube Thermal Mass Flow Meters & Controllers - A User's Guide
    This paper describes capillary tube mass flow meters and controllers for use in general purpose industrial and laboratory applications and in the fabrication of semiconductor devices. It provides a detailed description of the major components---flow body, flow conditioner, bypass, capillary sensor
  • Successfully Managing Industrial Chlorinated Processes with Metal Sealed Mass Flow Controllers
    Chlorine (CL2) is a member of the halogen elements group that is highly reactive and bonds easily with hydrogen to form HCL acid. HCL attacks stainless steel aggressively - literally passivating the surface of the stainless steel, and can render a thermal mass flow controller inoperative in a brief
  • Thermal Mass Flow HVAC Meters
    and guests. There are two broad categories of HVAC systems: constant volume flow systems (CAV) and variable volume flow systems (VAV). Within these two categories are a variety of methods for generating and balancing the air flow with an integrated system of fans, vents and controllers. As the size
  • What You Need to Know About SCR Power Controllers
    is to control the flow of electricity from the grid to a heater. This function precisely regulates temperature to produce specific material effects or properties within an industrial furnace, oven, or other thermal processing equipment.
  • Sensing Air Flow with the PIC16C781
    Programmable Switch Mode Controllers (PSMC) are not just for switching power supplies. This technical brief describes how to use the PIC16C781 PSMC in combination with the Integrated Operational Amplifier, Digital-to-Analog Converter (DAC), and gated timer to construct a thermally operated air flow
  • Flowmeters Benefit From Silicon Advances
    Controller Responds Rapidly Developed with the aid of micro-machining and thin-film technologies, "ultra-miniature " thermal flow sensor is capable of 2 millisecond response time at the chip level. Symmetrical design affords measurement of reverse flows. Digital MFC Preprogrammed for Common Gases
  • MFCs for Hypoxia Training
    Thermal mass flow controllers (MFCs) are often used to control the flow of a gas species based on the dissipation of thermal energy. This is achieved by integrating a sensor tube into the flow system which is equipped with up and downstream temperature sensors. The gas absorbs heat as it enters

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