Original Yokogawa EJA430E Traditional-Mount Gauge Pressure
Transmitter
Product Introduction
The Original Yokogawa EJA430E is a traditional-mount gauge pressure
transmitter belonging to the EJA-E series, part of Yokogawa’s OpreX
Field Instruments family under the OpreX Measurement category.
Launched in 2012, this series combines the ruggedness of the EJA-A
series with the high performance of the EJX-A series, delivering
reliable and precise pressure measurement for industrial
applications. Equipped with Yokogawa’s proprietary DPharp digital
sensor—superior to conventional analog sensors in performance and
stability—it ensures consistent, accurate readings even in
demanding environments. Certified by Exida and TUV for SIL 2/3, the
EJA430E is designed to meet the stringent requirements of
industrial automation systems, offering features like fast response
times, long-term stability, and robust resistance to overpressure
and vibration, making it ideal for a wide range of gauge pressure
measurement tasks.
Features
High Accuracy: Provides a standard accuracy of ±0.055%, with an
optional 0.04% accuracy for applications requiring ultra-precise
measurements.
Exceptional Long-Term Stability: Maintains ±0.1% stability per 10
years (for M, H, and V capsules) and ±0.2% per year (for F
capsules), minimizing drift and reducing the need for frequent
recalibration.
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 2/3, ensuring
suitability for safety-critical applications where reliable
pressure monitoring is essential.
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, it provides
consistent, reliable measurements across varying conditions.
Local Parameter Setting (LPS): Allows on-site parameter
configuration, simplifying setup and calibration without relying on
external tools.
Overpressure Resistance: Withstands overpressure up to the maximum
working pressure, with minimal impact on accuracy (±0.03% of URL
for overpressure effects), ensuring durability in harsh operating
scenarios.
Vibration Immunity: Resistant to vibration (10-60 Hz, 0.21 mm
displacement; 60-2000 Hz, 3 g for amplifier housing codes 1 and 3),
maintaining stable performance in high-vibration environments.
Wide Pressure Range: Covers a pressure range of 0-100 MPa, adapting
to diverse industrial gauge pressure measurement needs.
Durable Construction: Made from SS304 stainless steel, enhancing
corrosion resistance and suitability for harsh industrial
environments.
Key Specifications
Brand: Yokogawa
Model Number: EJA430E
Output Signal: 4-20 mA
Material: SS304
Power Supply Effects: ±0.005% per Volt (from 21.6 to 32 V DC,
350Ω), ensuring minimal impact from voltage fluctuations.
Mounting Position Flexibility: Rotation in the diaphragm plane has
no effect; tilting up to 90° causes a zero shift of up to 0.4 kPa
(1.6 inH2O), which can be corrected via zero adjustment.
Vibration Resistance: Amplifier housing codes 1 and 3 resist
vibration (10-60 Hz, 0.21 mm displacement; 60-2000 Hz, 3 g) with
<0.1% of URL deviation, suitable for high-vibration fields or
pipelines.
Response Time Variability: 150 ms response time for wetted parts
material codes H, M, T, A, B, D, W or F span code (with amplifier
damping set to zero, including 45 ms nominal dead time).
Product Line: Part of Yokogawa’s OpreX Field Instruments family
(OpreX Measurement category), representing excellence in industrial
automation technology.
