4-20mA current loop output pressure transmitters with intrinsically safe (IS) certification, and low pressure scale operating range.
DMK351 Liquid and Gas Resistant Intrinsically Safe Low Range Gauge Pressure Sensor
DMP331P Hygienic Flush Pressure Transmitter
DMP331 Precision Pressure Transmitter
DMP343 Low Range Pneumatic Pressure Sensor
XMD Process Plant DP Cell Differential Pressure Transmitter
DMP457 Marine Approved Pressure Transmitter
DMK 458 Seawater Low Range Pressure Transmitter
DS210 Combined Low Pressure Switch, Indicator and Sensor
- 1 inH2O differential intrinsically safe 4-20mA out air pressure sensor for HVAC use
- 1 mbar range 4-20mA output biogas pressure transmitter for controlling blower fan connected to a covered lagoon
- Minus 25 mb vacuum intrinsically safe 4-20mA pressure sensor
- 50mbarg range 4-20mA output petrol fill level pressure sensor for automotive testing use
- Low range ATEX approved 100 Pascal range DP transmitter
- ATEX rated room ±100 Pa differential pressure transmitter
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.
Intrinsically safe approved instrumentation can be installed in hazardous area zones and connected to other appropriate intrinsically safe equipment. Intrinsic safety is achieved by limiting the amount of electrical power that can enter the protected zone by incorporating zener diode or isolation transformer barriers, ensuring a specified surface temperature is not exceeded, and preventing electrical discharges which may otherwise ignite a potentially explosive atmosphere.
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.