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b1 Airflow Sensing Elements
b1 Pressure Sensing Elements
b1 Flow Transducers
b1 Differential Pressure Transducers
b1 Indicating Meters
b1 Calibration Tools
 
 
 
Differential Pressure Transducers
 
 
DPT-4001 Loop Powered Differential Pressure Transducer
 
 
The DPT-4001 differential pressure transducer sensor operates on the capacitance principal and is capable of sensing ultra low differential pressures. In the capacitance cell, a very lightweight, responsive diaphragm deflects a small amount when pressure is applied. This deflection results in a change in capacitance, which is then detected and processed electronically into 4-20 mA output signal linear to the differential pressure.
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DPT-4003 Differential Pressure Transducer
 
 
The DPT-4003 differential pressure transducer sensor operates on the capacitance principal and is capable of sensing ultra low differential pressures. In the capacitance cell, a very lightweight, responsive diaphragm deflects a small amount when pressure is applied. This deflection results in a change in capacitance, which is then detected and processed electronically into a 0-5 or 0-10 VDC output signal linear to the differential pressure.
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DPT & DPIT-4005 Series Differential Pressure Transducers
 
 
DPT & DPIT-4005 Series are analog four wire differential pressure transducers with a scaling multiplier and output filter complete in a single package. The 4-20 mA, 0-5 VDC, or 0-10 VDC selectable output of the transducers is linear to velocity pressure. Each transducer is factory spanned and calibrated to meet the design requirement of the application. Optional features include local indication of the measured differential pressure on an independent front panel mounted magnehelic pressure gauge (Model DPIT-4005-M).
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MicroTransEQ Airflow Signal Processor
 
 
The MicroTransEQ flow transducer utilizes a 24 bit A/D converter for signal processing and can produce accuracies of ±0.1% of reading. The ultra low 0.03"w.c. differential pressure (693 fpm at standard air density conditions) full scale operating range and the auto zeroing function provides accurate air flow measurement down to 100 fpm making this product ideal for outdoor air flow measurement applications and for use on projects seeking to obtain credit for IEQ Credit 1: Outdoor Air Delivery Monitoring under the LEED® Green Building Rating System. The MicroTransEQ also accepts a temperature input signal for air density compensation for standard or actual airflow calculations. For easy use on fan inlet applications with piezometer ring systems, the MicroTransEQ incorporates a special piezometer ring flow algorithm with easy flow coefficient entry through display menus. A 4-point flow correction and K-factor field menu are included to reduce time and save money spent on balancing. Device monitoring and configuration can also be performed by a building management system through either a LonWorks®, BACnet-MS/TP® Master or Modbus communication network.
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Airflow Measurement Accuracy