
Low range pressure transmitter with a bidirectional compound range from minus 1 to plus 1 psi gauge and low operating temperature of -40 degC.
The DMK 351 has a large diameter variable capacitive dry cell sensing module which is ideal for low range pressure measurements, and since it has no liquid filled components which would stiffen at lower temperatures, it can operate without any significant effect on performance.
The DMK 351 pressure transmitter is specifically designed for applications requiring accurate low-range pressure measurements in challenging low-temperature environments. Its bidirectional compound range of -1 to +1 psi gauge makes it suitable for systems with fluctuating pressures around atmospheric pressure, such as those found in cleanrooms, HVAC systems, and filter monitoring. The large diameter variable capacitive dry cell sensing module offers high sensitivity and accuracy in these low-pressure applications.
A key advantage of the DMK 351 is its ability to operate reliably at temperatures as low as -40°C. This is achieved through the use of a dry cell sensing element, eliminating any liquid-filled components that could solidify or become viscous at low temperatures and affect the accuracy of the pressure readings. This makes the DMK 351 ideal for outdoor installations, cryogenic applications, or unheated environments where maintaining consistent performance in freezing conditions is critical.
The dry cell technology also contributes to the long-term stability and reliability of the DMK 351. Unlike traditional liquid-filled sensors, it is less prone to issues like leaks, contamination, and temperature-induced drift, ensuring consistent and accurate measurements over an extended period. This reduces maintenance requirements and increases the operational lifespan of the transmitter.
Furthermore, the DMK 351‘s robust construction and design make it suitable for use in a variety of demanding industrial and research applications. Its compatibility with various process connections and electrical configurations ensures easy integration into existing systems. The transmitter’s high accuracy and stability make it suitable for critical applications where precise pressure monitoring is essential, such as in leak detection systems, flow control systems, and pneumatic control systems.

DMK351 Low Range Gauge Pressure Transmitter
- SKU ID: s1-dmk351-6-15837
- Pressure Range: -1 to +1
- Units: psi
- Reference Type: Bi-directional Gauge (-P to +P)
- Output Signal: 4-20mA (2 wire)
- Accuracy: 0.35% FS
- Electrical Connection: DIN43650A plug IP65
- Process Connection: 1/2 NPT male
- Process Connector Material: Stainless steel 316L
- Diaphragm Material: Ceramic Alumina Al2O3 96%
- Media Exposed Seals: FKM
- Media Operating Temperature Range: -40 to +125 degC