
The DMP331 pressure transmitter offers a practical solution for applications where a general indication of atmospheric pressure is needed. Its 4-20mA output and 800 to 1200 mbar absolute pressure range suit it for integration with various industrial systems. This sensor provides reliable performance and cost-effective operation in applications where precise barometric readings are not critical.
The DMP331 is a versatile and economical pressure transmitter that finds application in a range of scenarios where a general indication of atmospheric pressure is sufficient. Its 800 to 1200 mbar absolute pressure range and 4-20mA output signal make it compatible with many industrial control and monitoring systems.
In environmental monitoring, the DMP331 can be integrated into gas analyzers to compensate for atmospheric pressure changes that affect readings. For instance, in a continuous emissions monitoring system (CEMS) analyzing flue gases, the DMP331 can provide the atmospheric pressure data needed to accurately determine the concentration of pollutants. Similarly, in scientific instrumentation like mass spectrometers, where precise gas flow control is critical, the DMP331 helps maintain consistent operating conditions by accounting for atmospheric pressure variations.
Process monitoring applications also benefit from the DMP331’s capabilities. In oxygen analysis systems used in combustion control or fermentation processes, accurate pressure measurement is essential for determining oxygen partial pressure. The DMP331 provides this pressure data, enabling precise control of oxygen levels. In hydrostatic level measurement, where pressure is used to infer liquid level in a tank or vessel, the DMP331 can provide the atmospheric pressure compensation needed for accurate level readings, particularly in open tanks subject to atmospheric pressure fluctuations.
The DMP331‘s affordability and ease of integration make it a practical choice for original equipment manufacturers (OEMs) looking to incorporate atmospheric pressure compensation into their instruments. Its robust design and wide operating temperature range ensure reliable performance in various industrial environments.

DMP 331 Atmospheric Pressure Transmitter
- Pressure Range: 800 to 1200 mb abs
- Output Signal: 4-20mA (2 wire)
- Accuracy: 0.5% FS (std, 11-12bit res)
- Electrical Connection: DIN43650A plug IP65
- Pressure Connection: 1/4 NPT male
- Media Exposed Seals: FKM (standard)