YOKOGAWA EJA110E Differential Pressure Transmitter
Product Introduction
The YOKOGAWA EJA110E Differential Pressure Transmitter is part of
Yokogawa’s OpreX Field Instruments family under the OpreX
Measurement category, representing the latest evolution of the
DPharp (Digital Pressure Harp) family of pressure transmitters.
Launched in 2012, it combines the ruggedness of the EJA-A series
with the high performance of the EJX-A series, delivering
exceptional accuracy and reliability for industrial measurement
applications. Equipped with Yokogawa’s proprietary DPharp digital
sensor—superior to traditional analog sensors in performance and
stability—it ensures consistent, precise measurements even in
demanding environments. Certified by Exida and TUV for SIL 2 / SIL
3, this transmitter is designed to meet the stringent requirements
of industrial automation systems, offering advanced features such
as fast response times, long-term stability, and robust resistance
to overpressure and vibration.
Features
High Accuracy: Boasts a standard accuracy of 0.055%, with an
optional 0.04% accuracy for applications requiring ultra-precise
measurements.
Exceptional Stability: Maintains 0.1% stability per 10 years (for
M, H, and V capsules) and 0.2% per year (for F capsules), ensuring
long-term reliability with minimal drift.
Fast Response Time: Delivers a 90 ms response time (for wetted
parts material code S and L, excluding F span code), enabling quick
detection of pressure changes in dynamic processes.
SIL Certification: Exida and TUV certified for SIL 2 / SIL 3,
making it suitable for safety-critical applications.
DPharp Digital Sensor: Utilizes Yokogawa’s advanced DPharp digital
sensor, which outperforms analog sensors with twice the performance
and stability, leveraging cutting-edge IC chip design for
consistent, reliable measurements.
Overpressure Resistance: Withstands overpressure up to maximum
working pressure (MWP) of 2,300 psi (3,600 psi optional), with
minimal impact on accuracy (±0.03% of URL for overpressure
effects).
Local Parameter Setting (LPS): Allows on-site configuration of
parameters, simplifying setup and calibration without the need for
external tools.
Vibration Immunity: Resistant to vibration (10-60 Hz, 0.21 mm
displacement; 60-2000 Hz, 3 g for amplifier housing codes 1 and 3),
ensuring stable performance in high-vibration environments.
Wide Pressure Range: Covers a pressure range of 0-100 MPa, adapting
to diverse industrial measurement needs.
Durable Construction: Made from SS304 stainless steel, enhancing
corrosion resistance and suitability for harsh industrial
conditions.
Key Specifications
Brand: Yokogawa
Model Number: EJA110E
Output Signal: 4-20 mA
Material: SS304
Power Supply Effects: ±0.005% per Volt (21.6-32 V DC, 350Ω)
Mounting Position Effects: Rotation in diaphragm plane has no
effect; tilting up to 90° causes minimal zero shift (correctable
via zero adjustment)
Maximum Working Pressure (MWP): 2,300 psi (3,600 psi optional)
Certifications: Exida, TUV (SIL 2 / SIL 3)
Product Line: Part of Yokogawa’s OpreX Field Instruments family
(OpreX Measurement category)
