Low pressure transmitters with 4 to 20 milliamp current output for measuring low level gauge, differential & absolute pressures below 1 bar (15 psi, 400 inWG or 1000 mbar). Low pressure transmitters are used to measure air ventilation pressures in buildings and small pressure differences between two different locations such as clean rooms and laboratories where it is important to prevent air contamination.
DMP457 Marine Approved Pressure Transmitter - Marine approved stainless steel diaphragm pressure transmitter with 4-20mA current loop output for shipbuilding in ranges from 100mb to 600 bar gauge or absolute.
DMP331 Precision Pressure Transmitter - Stainless steel pressure transmitter with ranges from 100mbar up to 40 bar gauge or absolute. Special options for ATEX , SIL2 and compound ranges.
DMP343 Low Range Pneumatic Pressure Sensor - DMP343 pneumatic pressure sensor for measuring very low range pressures on pneumatic control systems, heating, ventilation and air conditioning systems (HVAC) .
PrimAtü 10 Low Cost Low Range Differential Air Pressure Transducer - The PrimAtü 10 low cost low range differential air pressure transducer can detect and display both positive and negative differential pressure variations of very low low pressure ranges from 0.5 up to 1000 mbar/hPa, and output the pressure as a 4-20mA, 0-20mA or a 0-10Vdc analog output.
- Compound +/-200 mb g pressure transmitter with 1/2 BSPT
- Minus 0.25 inWG differential pressure transmitter for negative air pressure difference
- 20 mbarg digital display air pressure indicator and transmitter with 1/4 NPT male fitting
- Hygienic atex approved 100mbar pressure transmitter for pharmaceutical application
- Stainless steel 316L wetted parts 100 mbar ATEX pressure transmitter
- Industrial powder duct pressure transmitter with +/-15 kPa range
- -2 to 2 inHg g 4-20mA out intake and exhaust air pressure sensor for building management use
- 3 psig range 4-20mA output natural gas pressure sensor for building boiler heating use
- 1 psig low range 4-20 mA output pressure sensor
- Negative 500 mmH2O g range 4-20mA output pressure sensor
- 7mH2O g range 4-20mA out hydrostatic liquid level pressure sensor
- 500mbarg range 4-20mA signal stainless steel pressure sensor
Low pressure ranges are required to measure small pressure values, often between two locations where air is being moved from one place to another. Low range pressure measurement is required for monitoring and controlling ventilation and air extraction in office and factory buildings. In building management applications, air movement in large spaces creates very small changes in air pressure, so it is necessary to use highly sensitive measurement devices which are set to read in inches of water column, mbar, hPa or Pascals.
Pressure transmitters are measurement devices which combine amplified 4 to 20 milliamp current loop output signal conditioning electronic module with a transducer for measuring the pressure of a liquid, vapour or gas.