Pressure transmitters serve as essential tools for measuring the pressure or level of industrial liquids and gases, with their output signals transmitted to control systems. Precise and consistent process measurements are critical to ensuring the safe, reliable, and cost-effective operation of industrial plants.
Yokogawa's pressure instruments are designed to be compact, lightweight, user-friendly, and intelligent, streamlining every stage of their lifecycle—from handling, commissioning, and installation to operation and maintenance—all while delivering exceptional performance. Whether deployed in the harsh conditions of an offshore platform or a refinery enduring scorching desert temperatures, our DPharp series consistently provides accurate, repeatable, and high-integrity process measurements.
Also called pressure transducers, these sensors feature pressure-sensitive surfaces (steel, silicon, etc., selected by analyte type) with electronic components that convert applied force into electrical signals. Pressure, measured as force per unit area (stopping expansion of fluids/gases), uses units like pascals (Pa = 1 N/m²) or psi. Industries such as gas, petrochemicals, and pharmaceuticals require precise, real-time pressure monitoring via transmitters integrated with rapid conversion systems, often using comprehensive gauge setups for optimal pressure control.
Gauge Pressure Transmitters
Designed for absolute pressure measurements in harsh conditions, these use steel diaphragms in vessels/pipework to detect minute deformations. Internal sensors quickly convert these to electrical signals, monitorable remotely or via user-friendly on-site displays.
Applications
Widely used across industries: offshore drilling/oil exploration measures pressure differentials in sensitive equipment to maintain ethical, efficient operations—mirrored in onshore petrochemical/gas facilities. Transportation/storage systems rely on them for safe product maintenance, while laboratories use them to measure vacuum chamber pressure relative to atmosphere for research.
ABB Pressure Transmitters
A leading developer of industrial measurement tools, ABB offers pressure sensors for routine and advanced applications. Featuring all-welded technology, automatic on-board configuration, and enhanced plug-and-play interfaces, their transmitters enable safe, seamless pressure measurement.
The EJA-E series of transmitters is Yokogawa's most recent evolution of the DPharp family. Released in 2012, it combines the ruggedness and success of the work-horse EJA-E series with the performance of the thoroughbred EJX-A series to deliver the type of product you have come to expect from Yokogawa.
The EJA530E is our in-line mount gauge pressure transmitter in the series.
EJA530E's features include:
EJXC50A, EJAC50E
Direct Mounted Diaphragm Seal System consists of gauge pressure transmitter with single direct mount diaphragm seal. Suitable for various kinds of pressure measurement.
Key Features
| Measurement Span | Range | ||
|---|---|---|---|
| A | 10 to 200 kPa | -100 to 200 kPa | |
| B | 0.1 to 2 MPa | -0.1 to 2 MPa | |
| C | Flush type | 0.5 to 10 MPa | -0.1 to 10 MPa |
| Extended type | 0.5 to 7 MPa | -0.1 to 7 MPa | |
The level of automation in both mobile and stationary applications is rising significantly. As the efficient management of machines and systems grows increasingly reliant on integrated electronic controls, the demand for sensors and transmitters will continue to increase.
Danfoss brings decades of experience to this development, successfully aligning with market needs in terms of both technologies and functions.
Today, Danfoss’s product range includes a wide selection of transmitter types, all integrating cutting-edge technologies with smart material choices. This ensures we can tailor our offerings to nearly any measurement task, regardless of budget constraints.
-High EMC performance without impact on accuracy
-High level of vibration and chock stability
-Long term stability
-High level of over-pressure stability
-High IP degree
-Wide choice of pressure connections, electrical connections, pressure ranges, output signal
-Available with marine approvals
| Number of inputs and outputs | Number of analogue outputs: 1 | |||
| Measuring range | 0...10 bar | 0...145 psi | 0...1000 kPa | 0...1 MPa |
| Process connection | threaded connection G 1/4 internal thread |
| Operating voltage[V] | 9.6...32 DC |
| Min. insulation resistance[M惟] | 100; (500 V DC) |
| Protection class | III |
| Reverse polarity protection | yes |
The Coplanar transmitter incorporates a capacitance sensor featuring patented Saturn™ sensing technology, which boosts performance to provide industry-leading accuracy and overpressure protection. Its coplanar design allows for easy integration with various manifolds, primary elements, and remote seals. These configurations deliver reliable performance and functionality for differential pressure, true gauge, or absolute pressure measurements.
| Warranty | Up to 15-year limited warranty |
| Rangedown | Up to 200:1 |
| Measurement Range | Up to 2000psi (137,89 bar) Differential, Up to 2000psig (137,89 bar) Gage, Up to 4000psia (275,79 bar) Absolute |
| Process Wetted Material | 316L SST, Alloy C-276, Alloy 400, Tantalum, Gold-plated Alloy 400, Gold-plated 316L SST |
| Diagnostics | Basic Diagnostics, Loop Integrity, Process Intelligence, Plugged Impulse Line |
