Model EJA120A Differential Pressure Transmitter-hkxytech
  • Model EJA120A Differential Pressure Transmitter
  • Model EJA120A Differential Pressure Transmitter

Model EJA120A Differential Pressure Transmitter

2015-06-05 16:17:54


The high performance draft range differential pressure transmitter model EJA120A outputs a 4 to 20 mA DC signal corresponding to the measured differential pressure. Model EJA120A also features remote setup and monitoring through communications with the BRAIN™ terminal and CENTUM CS™ or XL™ or HART® 275 host.……


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Quick Details

  • Place of Origin: Japan

  • Brand Name: Yokogawa

  • Model Number: EJA120A

  • Application: For wide application testing pr

  • Accuracy: ±0.065% of span

  • communication protocols: BRAIN, HART, FOUNDATION field....

  • Span: up to 14MPa

  • Certificates: CE & ISO

  • Output range: 3.6 mA to 21.6 mA

  • Ambient Temperature Limits: 25 to 80

  • Working Pressure Limits: 50 kPa (7.25 psi)

  • Up-scale: 110%, 21.6 mA DC or more

  • Down-scale: 5%, 3.2 mA DC or less

Packaging & Delivery

Packaging Details: Standard export package. By carton box or composited board box

Delivery Detail:  3~4Weeks upon order details

Key features


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





EJA120A Draft Range Differential Pressure Transmitter
E Capsule
Range-1 to 1 kPa(-4 to 4 inH2O)
Span0.1 to 1 kPa(0.4 to 4 inH2O)
Degrees of protectionIP67, NEMA 4X, and JIS C0920 immersion proof
Output4 to 20 mA DC or FOUNDATION™ fieldbus or PROFIBUS PA 2-wire system with digital communication
Supply voltageBRAIN 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-25 to 80 deg C (-13 to 176 deg F)
Process temperature-25 to 80 deg C (-13 to 176 deg F)
Maximum working pressure50 kPa (7.25 psi)
Mounting2-inch pipe mounting
Wetted parts materialCapsuleSUS316L(Diaphragm material is Hastelloy C-276)
Cover flangeSUS316
HousingCast aluminum alloy or SUS316 equivalent stainless steel (optional)