The EJA-A series is Yokogawa's most successful pressure transmitter line. First released in 1991, it continues to offer high performance and high reliability for any application. With an installed base of over 4-1/2 million EJA-A transmitters worldwide, it has a proven track record that makes it a true industry workhorse.
The EJA438 is a Gauge Pressure Transmitter with a Remote Diaphragm seal attached.
It is available with a Flush Type Remote Seal (EJA438W) or an Extended Type Remote Seal (EJA438N).
EJA438 features include:
- 0.2% Accuracy
- 700 ms Response Time
- External Zero Adjust
Explore how the EJA438 can help you Boost your bottom line.
Details
At it's heart, Yokogawa's Gauge Pressure Transmitter with DPharp digital sensor offers the performance and device intelligence needed to get greater insight into your process.
Digital Performance
Self-Diagnostics
Yokogawa's DPharp active sensor and rugged construction allow users to run their plants safer and with less downtime.
Rugged Construction
Proven Technology
Inherently Safe Design
Yokogawa's DPharp gauge pressure transmitters offer long-term stability and diagnostics to make your maintenance routine easy.
Quicker Maintenance
No Learning Curve
EJA438 Overview
| Measurement Types | |
|---|---|
| Primary Variable | Gauge Pressure |
| Reference Accuracy | |
| Primary Variable | ±0.2% of Span |
| Rangeability | |
| Primary Variable | A-Capsule: 50:1 B-Capsule: 30:1 (EJA438W) 8-Capsule: 15:1 (EJA438N) |
WPC122.a
EJA438 Process Connections
| Process connection Type | Size | Extension | Flange | ||
|---|---|---|---|---|---|
| High-Pressure Side | Low-Pressure Side | ||||
EJA438W |
Flush Type | Flush Type | 3-inch 2-inch 1-½-inch |
N/A | JIS 10K, 20K, 40K |
| ANSI 150#, 300#, 600# | |||||
| JPI Class 150, 300, 600 | |||||
| DIN PN10/16, 25/40, 64 | |||||
EJA438N |
Extended Type | Extended Type | 4-inch 3-inch |
2-inch 4-inch 6-inch |
JIS 10K, 20K |
| ANSI 150#, 300# | |||||
| JPI Class 150, 300 | |||||
| DIN PN10/16, 25/40 | |||||
EJA438 PC.a
EJA438 Capsules
Graphics not to scale
3rd Party Calibration / Flushing Ring
Various Calibration / Flushing Rings are available through 3rd Party Vendors. Contact you local Yokogawa Representative for availability and pricing.
Resources
Hydrogen is the simplest and smallest atomic element. Water, acids, bases, and the immense family of organic compounds all contain hydrogen. Even though hydrogen is not corrosive, it can cause problems for pressure transmitters through Hydrogen Permeation.
Differential pressure transmitters, which serve as the core of field instrumentation, are widely used to measure the flow rate, pressure and density of liquids, gases and steam, as well as the level of liquid in a tank.
August 2007
Yokogawa's new facility in Singapore will play vital role in its regional and international growth. Yokogawa Electric Corporation, a leading company in industrial automation (IA) and technology solutions, recently announced the completion of its 12-storey building in Singapore. The new facility will play a crucial role in Yokogawa's vision to be the top global IA player by 2010.
Downloads
Instruction Manuals
- EJA Series Differential Pressure and Pressure Transmitters Installation Manual *See Manual Change 15-009_16-004_16-018 (4.8 MB)
- EJA438W and EJA438N Diaphragm Sealed Gauge Pressure Transmitters [Style: S2] *See Manual Change 16-004_16-018 (8.4 MB)
- Manual Change 16-004_16-018 (232 KB)
- EJA Series Fieldbus Communication Type *See Manual Change 10-007_12-004_16-004 (1.4 MB)
- EJA Series PROFIBUS PA Communication Type *See Manual Change 10-007_12-004_16-004 (5.2 MB)
- Manual Change 10-007_12-004_16-004 (293 KB)
- EJA Series HART Protocol (363 KB)
General Specifications
Software
- Fieldbus Device Description (DD) and Capabilities File (CF) (109 KB)
- PROFIBUS GSD/EDD file - EJA-A Series EDD file
- Fieldbus Device Description (DD) and Capabilities File (CF) (73 KB)
- Fieldbus Device Description (DD) and Capabilities File (CF) (354 KB)
- PROFIBUS EDD file (391 KB)
- PROFIBUS GSD/EDD file - EJA-A Series GSD file
- PROFIBUS EDD file (148 KB)
- PROFIBUS GSD file (8 KB)
- Fieldbus DD/CF file - EJA-A series Pressure Transmitter
- PROFIBUS GSD file (19 KB)
- Fieldbus DD/CF file - EJA-A Series Pressure Transmitter with software download function
- Yokogawa DTM FOUNDATION Fieldbus
- Yokogawa DTM HART
- Yokogawa DTM PROFIBUS
Technical Information
Engineering Tools
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