Low differential pressure transmitters for measuring very small pressure differences between two measurement points either side of a ventilation fan, both sides of an air filter or either side of clean room wall.
These low differential pressure transmitters have a 4 to 20 milliamp output scaled over a few millibar or a few inches of water, and are typically used in applications matching these requirements:
- Input: Low differential pressures of a few millibar.
- Output: 4-20mA current loop with options for a display and alarm contact switches
- Applications: Ventilation flow, filter condition, negative/positive pressure between rooms.
- Industry: HVAC, Clean Rooms, Hospitals, Laboratories, Pharmaceutical, Medical
- Media Compatibility: Mostly air and non-corrosive gases
Choose a low differential pressure transmitter from the list below to view product specification details and request a price quotation.
Products
DPS300 User Switchable Pressure Range, Volts or Current Output Low DP Sensor - The DPS 300 is a low range HVAC differential pressure sensor. The lowest possible pressure range is 0...100 pascals. 2 or 3 switchable pressure ranges, plus volts or current output are included with most standard configurations.
DPS200 HVAC Differential Pressure Transmitter - Differential air pressure sensor with a 10 volt or a 4-20mA output for building ventilation applications. Ranges from 0 to 6 mbar up to 0 to 1000 mbar.
41X High Precision Low Range Pressure Transmitter
PrimAtü 10 Low Cost Low Range Differential Air Pressure Transducer
XMD Process Plant DP Cell Differential Pressure Transmitter
DPS Low Differential Pressure Transmitter
Application Specified Products
- 100 Pa bi-directional range differential air pressure transmitter - Bi-directional low range 4 to 20 milliamp differential pressure transmitter covering an air pressure range from -100 to +100 pascals.
-3 to 3 psi dp range high accuracy 4-20mA air pressure transmitter for water treatment use - A high accuracy low bi-directional range differential pressure transmitter for water treatment use to measure pressure of air over a range of -3 to 3 psi differential from two 1/4”-18 NPT internal process connections, and sending the corresponding 4-20mA signal through the 1/2" NPT internal cable gland electrical connection.- DP transmitter for 10bar water line strainer cleaning indication - We have an application for a DP transmitter to indicate when a strainer needs to be cleaned.
- Biogas ATEX 4-20mA pressure transmitter for 0 to 20 mbar range - ATEX approved 4-20mA output pressure transmitter for measuring biogas over 0 to 20 mbar gauge. The XMD has a stainless steel 316L diaphragm and process connection, with a FKM seal for compatibility with biogas.
Minus 0.25 inWG differential pressure transmitter for negative air pressure difference - Pressure transmitter which will measure o to -0.25 inches of water differential air pressure and output a linear signal over a current scale of 4 to 20 milliamps.
Bidirectional -50 to +50 Pa diff pressure transmitter with user calibration adjustment - Bi-directional 4 to 20 milliamp output pressure transmitter for measuring a diff pressure from -50 to +50 pascals.
3inH2O differential 4-20mA nitrogen pressure sensor and display for annealing furnace flow control use - A digital display and pressure sensor for annealing furnace flow control use to measure pressure of nitrogen over a range of 0 to 3 inH2O differential from two 1/8 NPT male process connections, and sending the corresponding 4-20mA signal through the M12 connector electrical connection.- 4 inch water column range 4-20mA differential pressure sensor for liquids - Low range wet/wet dp sensor for measuring differential pressure of a liquid from 0 to 4 inches of water column.
- -200 to 200 Pa bi-directional range 4-20mA output dp pressure transmitter for venturi tube - A bidirectional low range pressure transmitter for venturi tube use to measure pressure of air in a venturi tube over a range of -200 to 200 Pa from the 6.6mm dia x 11mm barbed connections process connection, and sending the corresponding 4-20mA signal through the M12 x 1.5 cable glands with 5 internal screw terminals electrical connection.
- Low range ATEX approved 100 Pascal range DP transmitter - The DPT200 is a robust ATEX approved differential pressure transmitter which has a very low range of 100Pa.
- 0.06 inWG positive air pressure transmitter for HVAC blower fan control - Air pressure differential transmitter with 4-20 mA output used in a blower speed control loop for building positive pressure up to 0.06"WG draft pressure in an HVAC system.
- Minus 100 pascal suction pressure transmitter - Very low range suction pressure transmitter for monitoring negative pressures up to 100 pascals.