DMK 387 Pressure Transmitter

High-precision pressure, built for harsh environments

Discover the DMK 387 Pressure Transmitter, expertly designed for high accuracy in small system pressures and filling heights. Utilising an advanced AI2O3 99.9% capacitive sensor, it offers superior overpressure resistance, temperature resilience, and media compatibility. Available in an intrinsically safe version, it’s perfect for explosive environments. Choose DMK 387 for precision in challenging applications.

DMK 387 Pressure Transmitter Product Parameters

  • Pressure Ranges: Nominal pressure gauge 0.1 to 40 bar; Level 1 to 400 mH2O.
  • Output Signal: Standard 2-wire 4-20 mA, optional 3-wire 0-10 V.
  • Accuracy: Standard ≤ ± 0.35 % FSO, optional ≤ ± 0.25 % FSO.
  • Electrical Connections: ISO 4400, Binder 723, M12x1 / metal, compact field housing.
  • Process Connections: G 1/4″ DIN 3852 flush, optional G1/2″ DIN 3852.
  • Media Compatibility: Suitable for non-aggressive gases, compatible with stainless steel and FKM.
  • Special Features: Overpressure up to 70 bar, burst pressure ≥ 80 bar, IP67 rated.

Product Highlights

The DMK387 Pressure Transmitter is a versatile and reliable device designed to accurately measure pressure across a wide range of applications. With a nominal pressure range spanning from 0 … 100 mbar up to 0 … 40 bar, it offers exceptional flexibility for various pressure measurement needs. The transmitter provides a 2-wire output signal of 4 … 20 mA, ensuring compatibility with standard industrial systems. 

Additionally, it offers the option for 3-wire output or other configurations upon request. The product features a diaphragm made of high-quality ceramics, specifically 99.9% Al2O3, ensuring excellent durability and resistance to pressure fluctuations. The DMK387 also boasts high long-term stability, guaranteeing accurate and reliable measurements over extended periods. 

Optional versions include an IS-version (Ex ia) that is intrinsically safe for both gases and dust. Moreover, the transmitter offers various options for inch threads and allows for a pressure port in PVDF or PP-HT, catering to the requirements of aggressive media. With its robust construction and optional features, the DMK387 Pressure Transmitter is a top choice for demanding pressure measurement applications.

Applications

The DMK 387 Pressure Transmitter is widely used in plant and machine engineering due to its robust design and reliable performance. In this context, it is typically integrated into automated systems and industrial machinery to monitor and control pressure levels. Its compact size and high accuracy make it ideal for ensuring the safe and efficient operation of various mechanical processes, helping to prevent equipment failure and optimize production workflows.

In the field of laboratory techniques, the DMK 387 is valued for its precision and versatility. Laboratories often require accurate pressure measurements for experiments, calibration, and quality control. The transmitter’s ability to deliver consistent and repeatable results makes it suitable for scientific research and testing environments, where even minor deviations in pressure can impact outcomes.

The transmitter is also well-suited for applications involving water. It can be used to monitor water pressure in pipelines, treatment plants, and distribution systems. Its corrosion-resistant materials ensure long-term durability even in moist or chemically treated environments, making it a reliable choice for water management and environmental monitoring.

Finally, the DMK 387 is designed to handle aggressive media, such as corrosive liquids and gases. Its specialized construction materials, like stainless steel and optional coatings, protect the sensor from damage caused by harsh chemicals. This makes it an excellent solution for industries that process or transport aggressive substances, ensuring accurate pressure measurement and system safety in challenging conditions.

To download the latest datasheet click here: DMK 351

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