EJA130A High Static Differential Pressure Transmitters

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Pressure Transmitter


EJA130A High Static Differential Pressure Transmitters

The EJA Series is available with BRAIN, HART, FOUNDATION™ fieldbus or PROFIBUS PA communication protocols.

The high performance differential pressure transmitter model EJA130A can be used to measure liquid, gas, or steam flow as well as liquid level, density and pressure. It outputs a 4 to 20 mA DC signal corresponding to the measured differential pressure.


Excellent performance and stability

The EJA series uses a silicon resonant sensor formed from monocrystal silicon, a perfect material which has no hysteresis in pressure or temperature changes. The sensor minimizes overpressure, temperature change, and static pressure effects, and thus offers unmatched long-term stability.

Compact and light-weight design

Half the weight of conventional models thanks to miniaturization of the casing with the amplifier ASIC, pressure cell structure, and flange. The ASIC uses the minimum number of parts and improves the reliability of the amplifier.

Fieldbus communication capability

Fieldbus is a digital two-way communication system. It is a revolutionary technology for configuring instrumentation control systems and a promising successor to the standard 4 to 20 mA analog communication used in most field instruments today.

EJA series offers two types of fieldbus models, FOUNDATION™ fieldbus Low Voltage Mode and PROFIBUS PA devices, which ensure interoperability between Yokogawa and other manufactures. As for software, the EJA series incorporates two AI function blocks that compute differential and static pressures to allow flexible configuration of instrumentation.




EJA130A High Static Differential Pressure Transmitter

M Capsule

H Capsule


-100 to 100 kPa
(-400 to 400 inH2O)

-500 to 500 kPa
(-2000 to 2000 inH2O)


1 to 100 kPa
(4 to 400 inH2O)

5 to 500 kPa
(20 to 2000 inH2O)




Degrees of protection

IP67, NEMA 4X, and JIS C0920 immersion proof




4 to 20 mA DC or FOUNDATION™ fieldbus or PROFIBUS PA 2-wire system with digital communication

Supply voltage

BRAIN and HART:10.5 to 42 V DC (10.5 to 30 V DC for Intrinsically safe type)
Fieldbus:9 to 32 V DC (9 to 24 V DC for Entity model and 9 to 17.5 V DC for FISCO model)

Ambient temperature

-40 to 85 deg C (-40 to 185 deg F) (general use type)
-30 to 80 deg C (-22 to 176 deg F) (with integral indicator)

Process temperature

-40 to 120 deg C (-40 to 248 deg F) (general use type)

Maximum working pressure

32 MPa (4500 psi)


2-inch pipe mounting

Wetted parts material


SUS316L (Diaphragm material is Hastelloy C-276)

Cover flange



Cast aluminum alloy or SUS316 equivalent stainless steel (optional)