Pressure Transmitters

Pressure transmitters are used to measure the pressure or level of industrial liquids and gases. The output is transmitted to a control system. Accurate and stable process measurements ensure the safe, reliable, and profitable operation of your plant.

Compact, lightweight, intuitive and intelligent, Yokogawa pressure instruments simplify all aspects of handling, commissioning, installation, operation, and maintenance while delivering outstanding performance. Whether installed in the harsh environment of an offshore platform or a refinery in the burning desert heat, our DPharp series delivers accurate, repeatable, and high integrity process measurements.

Learn more about Pressure Transmitters.

Click 'Details' above to see the following content.

  • DPharp Pressure Transmitters Comparison Table
  • Gauge Pressure transmitters compare a pressure relative to atmospheric measure.

  • Differential Pressure (DP) is defined as the difference between two pressures. Differential Pressure Transmitters use a reference point called the low-side pressure and compare it to the high-side pressure. Ports in the instrument are marked high-side and low-side.

  • Absolute Pressure transmitters compare a pressure relative to Absolute pressure. Absolute pressure is always a positive value.

  • Yokogawa offers a complete line of ISA100 compliant pressure transmitters. The line includes transmitters that can measure differential pressure, absolute pressure, and gauge pressure with a variety of different process connections.

  • Accurate level readings are essential to the safe, reliable, profitable operation of your plant. Liquid Level transmitters measure differential pressure to infer the level in a vessel.

  • There are several technologies on the market to measure mass flow. One is the Multi-variable Pressure Transmitter.

  • A Multi-Sensing transmitter combines transmitters for Differential Pressure, Gauge Pressure, and Temperature into one field instrument.

  • Diaphragm Seal System can be used to measure liquid, gas, or steam flow as well as liquid level, density, and pressure.

  • Draft Pressure transmitters are a unique type of differential transmitter that is designed to measure small differences in very low static pressure environments.

  • Using Bernoulli's equation, Differential Pressure transmitters can be used to infer the flow of fluid through a pipe.

  • Hygienic Pressure Transmitters are designed to fulfil the requirements of hygienic and pharmaceutical application

Yokogawa have been manufacturing electronic pressure transmitters for more than four decades. We revolutionized the industry and set a new standard for pressure measurement with the introduction of the DPharp digital sensor in 1991. The superior performance of the new technology enabled exponential market expansion. Yokogawa continues, the digital evolution with the enhancement of our DPharp family to deliver best in class pressure measurement solutions to our esteemed customers.

Pressure Transmitter Historical Time Line

Timeline of Yokogawa's Pressure Sensor Advances.

DPharp Pressure Transmitters EJX Series/EJA Series Comparison Table

Refer to the general specifications on each product page for detailed specifications.

  EJX-A Series EJA-E Series
Accuracy
± 0.025%  
± 0.040%
± 0.055%  
Stability
± 0.1% of URL per 15 years  
± 0.1% of URL per 10 years  
Maximum Working Pressure
250 bar
160 bar  
Turn down
200 : 1  
100 : 1  
Multi sensing
DP, SP
Safety
FMEDA report
IEC61508 Certified
Response Time
< 90 msec
User Linearisation
10 points signal characteriser
FF Function Blocks
AI (Analog Input)
PID (PID control)
Other *
FF Link master
Standard
Advanced Diagnostics
Impulse line blockage detection  
Heat trace monitoring  
Alarm output
Contact output  
Multi-Variable
DP, SP, PT, QV and QM  
Wireless Communication
ISA100.11a  

* Other FB include SC (Signal Characteriser), IT (Integrator), AR (Arithmetic) and IS (Input Selecor).

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