Low Flow Integral Orifice

Bernoulli's equation states that the pressure drop across a constriction is proportional to the square of the flow rate. Using this equation, smart differential pressure transmitters can infer the flow.

In this type of application, it is not only important to have an accurate differential pressure transmitter, but also an accurate "constriction". It is the accuracy of the total system that must be considered.

Therefore, Yokogawa combines our DP transmitter with an Integral Flow Orifice (IFO) in one unit to produce a total system to measure low flow accurately.

Which Series is Right for You?

View the comparison chart.

  • Differential Pressure Transmitter attached to an IFO assembly based on the EJA-E Series.

  • Differential Pressure Transmitter attached to an IFO assembly based on the EJX-A Series.

Which Series is Right for You?

  EJX115A EJX115A
EJA115E EJX115A
Accuracy
± 0.040%  
± 0.055%  
Accuracy (Integral Orifice)
± 5%
Stability
± 0.1% of URL per 15 years  
± 0.1% of URL per 10 years  
Response Time
90 msec
Safety
FMEDA Report
IEC 61508 Certified (SIL 2)
Specification Conformance
±3σ

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