Monitor air scrubber performance with this negative pressure transmitter. 4-20mA output, ranged to -10 inH2O. Ideal for industrial and healthcare applications.
This DMP343 pressure transmitter is specifically configured to monitor partial vacuum pressures in air scrubber systems. This specialized version of the DMP343 features a negative pressure range, enabling it to accurately measure vacuum levels down to -10 inH2O. This capability is crucial for ensuring the effective operation of air scrubbers, which are essential for maintaining clean and safe air in various industrial and commercial settings.

Air scrubbers function by generating negative air pressure, creating a low-pressure zone within a contaminated area. This pressure differential forces air to flow from the surrounding higher-pressure zones into the scrubber, effectively capturing airborne contaminants. The DMP343 pressure transmitter plays a vital role in this process by precisely monitoring the vacuum pressure, ensuring that the air scrubber operates at its optimal performance level.
Accurate measurement of vacuum pressure is essential for several reasons. Firstly, it ensures that the scrubber effectively captures contaminants. If the vacuum pressure is insufficient, contaminants may escape the scrubber’s filtration system, compromising air quality. Secondly, monitoring vacuum pressure helps prevent damage to the scrubber system. Excessive vacuum pressure can strain the scrubber’s components, leading to premature wear and tear. Finally, maintaining the correct vacuum pressure ensures energy efficiency. By operating at the optimal vacuum level, the scrubber minimizes energy consumption while maximizing contaminant removal.
The DMP343 pressure transmitter’s 4-20mA loop-powered output signal provides a reliable and industry-standard interface for seamless integration with various control systems. This allows for continuous monitoring and control of the air scrubber’s performance, ensuring consistent and efficient operation.
Applications for the DMP343 in air scrubber systems are diverse, ranging from industrial manufacturing facilities to healthcare environments. In manufacturing, air scrubbers equipped with the DMP343 pressure transmitter help remove dust, fumes, and other airborne particles generated during production processes. In healthcare settings, air scrubbers play a critical role in infection control, preventing the spread of airborne pathogens.
By accurately measuring vacuum pressure, the DMP343 pressure transmitter ensures the efficient and reliable operation of air scrubbers, contributing to a cleaner, safer, and healthier environment in various applications.

DMP343 Negative Air Pressure Transmitter
- Pressure Range: 0 to -25 mbar (-10 inH2O) gauge
- Output Signal: 4-20mA (2 wire)
- Electrical Connection: DIN43650A plug IP65
- Pressure Connection: 1/4 NPT male