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  • Position Monitoring on Flue Dampers
    Arc furnaces used to produce steel have large ducts in place to provide a flow of oxygen essential for the melting process and to capture and exhaust the fumes from that same process. These ducts contain dampers that, based upon their position, control the power to the main air fans supplying
  • Application of Oscilloscope in Measuring Automotive Sensors
    Use tablet oscilloscope to measure air damper sensor. The air damper sensor transmits the signal of the air damper's opening position and level to ECU, with which, ECU gives demand to allocate the fuel-injection.
  • TZIDC Intelligent Positioner with remote mounted position sensor
    ABB TZIDC Intelligent Positioner with Remote Sensor. helps achieve precise control of the boiler combustion air dampers for reduction of emissions, while reducing. maintenance and operating costs.
  • Damper Applications Guide: Constant Volume Damper and Actuator Characteristics (.pdf)
    The economizer portion of an air-handling system is not only responsible for reducing the operating cost of the system, but more importantly, it has to provide a sufficient volume of outside air at all times to ensure good indoor air quality. The function of the economizer also affects
  • Eddy Current - Skin, and Proximity Effects
    by means of a draft inducer blower and modulation of primary and secondary air dampers.
  • MAQ (R)20 PID Control in a Home Heating Application
    Conditioning Modules, standard sensors, and actuators control the combustion process of a batch fed cordwood boiler to optimum efficiency throughout a burn cycle by means of a draft inducer blower and modulation of primary and secondary air dampers.
  • Butterfly Valves in Compressed Air & Vacuum Services
    Because a butterfly valve uses a disc to control flow, much like a damper in a duct system, some people occasionally want to use it to control the flow of compressed air and other gases, or for vacuum service. Will it work in these no-liquid applications? For the most part the answer will be yes
  • Selecting and Controlling Economizer Dampers for VAV Systems with Return Fans (.pdf)
    For over 20 years the generic method of maintaining the prescribed amount of outdoor ventilation air has been through the use of a supply-return fan tracking system. The latest draft of ASHRAE Standard 62-1989R requires "controls and devices to maintain outdoor air flow within 10% of required
  • ACE Hydraulic Dampers Give Microbiological Sampler Users a Lift
    It's important to avoid the dispersion of microbial particles in hospital environments and cleanrooms that produce pharmaceuticals and cosmetics. Compromised air quality can contaminate products or cause an infection in vulnerable patients. These high-grade areas require in-process sampling
  • Did You Know? Carbon Monoxide Sensors Do Not Detect Diesel Exhaust?
    then controls the ventilation by opening dampers and controlling fans to maintain acceptable carbon monoxide levels. Sensors are also utilized to prevent introducing carbon monoxide into the building when the outside air intake is located in an area where exhaust fumes may be present, such as near
  • Air-Handling With Care Table III. Concentration of Gas Release After One Hour
    In the dynamic method, the pressure difference between the process room and the adjacent area is measured, and a damper automatically changes the supply or exhaust air flows to maintain a pressure setpoint (relative to a datum point). Using either method, when the process room door is open
  • Proper Selection of Pressure Blowers
    pressure. throughout the system's operating range. A fan outlet damper or system damper is usually used to control air volume. Consequently, a requirement of pressure blowers is that they. provide stable performance from full-closed to full-open.
  • How a Marlo Stratomizer Works
    The Marlo Stratomizer (R) Dampered Face and Bypass Coil - also known as an Integral Face and Bypass Coil (IFB) - provides the most reliable method of preheating and tempering fresh outside air. The coil sections maintain full steam pressure or constant hot water flow to the coil at all times

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