Differential Pressure Transmitter
0bar~0.4bar...35bar
Intrinsically safe, Ex ia IICT6 Ga
Accuracy: ±0.5%FS
New Product Change Notice (PCN) effective Jan 1, 2025. MICROSENSOR appreciate your understanding.
MDM291
Used For
Industrial Process Control, Pressure Checking Meter, Pressure Calibrator
Leave a MessageMDM291 water differential pressure sensor is a fully welded sensor. The product has undergone automatic testing and temperature compensation process in the production process, so that the product has good temperature characteristics. MDM291 selects silicon chips with high precision and high stability. The measured differential pressure is transmitted to the sensitive chip through the pressure port, the isolation diaphragm and the filled silicone oil. This achieves a linear conversion of the differential pressure and output voltage signals. The high and low voltage ends of MDM291 are protected by isolation diaphragms. Both pressure chambers can be in contact with corrosive and conductive fluid media. The electrical connection and the high and low voltage terminals adopt threaded interface, which is convenient for assembly and installation.
Features
• Isolated structure without "O" type sealing ring
• All 316L stainless steel material
• High static pressure 20MPa
• Wide temperature compensation range 0℃~70℃
• Pressure port thread optional
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MDM291 water differential pressure sensor is a fully welded sensor. The product has undergone automatic testing and temperature compensation process in the production process, so that the product has good temperature characteristics. MDM291 selects silicon chips with high precision and high stability. The measured differential pressure is transmitted to the sensitive chip through the pressure port, the isolation diaphragm and the filled silicone oil. This achieves a linear conversion of the differential pressure and output voltage signals. The high and low voltage ends of MDM291 are protected by isolation diaphragms. Both pressure chambers can be in contact with corrosive and conductive fluid media. The electrical connection and the high and low voltage terminals adopt threaded interface, which is convenient for assembly and installation.
Features
• Isolated structure without "O" type sealing ring
• All 316L stainless steel material
• High static pressure 20MPa
• Wide temperature compensation range 0℃~70℃
• Pressure port thread optional

The normal operation of fire-fighting water pipeline plays an important role in safeguarding citizens' personal and property safety. Monitoring instruments are installed at each monitoring point of the fire protection pipeline to monitor pressure and level data in real time, so that when an error occurs, faults are located in time and alarms are given to facilitate staff maintenance and processing.
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Using shear and agitation to evenly distribute the fibers, the pulp tank in the papermaking process combines pulp and water. Following mixing, shearing, and temperature control, the processed slurry is released to feed the machinery used in the papermaking process downstream. The slurry can only enter the headbox for the subsequent step if the level is measured accurately.
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During the process of oil and gas transportation, it is necessary to collect and analyze production and security data related to pipelines and production sites, and generally a supporting SCADA system needs to be built simultaneously. The SCADA system can monitor, control and manage the flow rate, pressure and temperature of the entire pipeline in real time, in order to achieve safe transportation, reduce consumption and improve economic efficiency.
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Pressure transmitters are used not only to measure the pressure inside the tank but also to measure the absolute pressure of the tank body and the pressure before and after the cryogenic pump, ensuring the safe operation of the system. Differential pressure measurement is the most common and reliable method for measuring the liquid level of cryogenic high-pressure bulk storage tanks.
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