New/Brand-New Yokogawa Eja438W Gauge Pressure Transmitter with Remote Diaphragm Seal

• Customization: Available
• Type: Gauge Pressure Transmitter
• Structure Type: Strain Gauge Pressure Transmitter
• Model NO.: EJA438W
• Measuring Medium: Gas
• Accuracy Grade: ±0.2% of Span
• Pressure range: -100 Kpa to 100 MPa
• IP Rating: IP68
• Certification: CE
• Customized: Non-Customized
• Process Connection Type: Flush Type
• Measurement Types: Gauge Pressure
• Reference Accuracy: ±0.2% of Span
• Rangeability: a-Capsule: 50:1 B-Capsule: 30:1 (Eja438W) 8-Capsul
• Output Signal: 4–20 Ma DC (2-Wire), Hart, Brain, O
• Long-Term Stability: ±0.1% of Url Per 10 Years
• Ambient Temperature: -40 to +85 °c
• Process Temperature: -50 to +400 °c
• Supply Voltage: 10.5–42 V DC
• Housing Protection: IP67
• Material: Stainless Steel, Hastelloy, Tantalum
• Capillary Length: up to 15 M
• Response Time: ≤ 0.5 S
• Overpressure Limit: up to 200% of Url
• Certifications: Sil 2, ATEX, Iecex, PED, CE
• Transport Package: with Carton or Wooden Package
• Specification: 40X30X20 cm
• Trademark: Yokogawa
• Origin: Japan
• HS Code: 9026201090
• Production Capacity: 2000
• Package Size: 40.00cm * 30.00cm * 20.00cm
• Package Gross Weight: 6.000kg

Product Description

Product Description

EJA438 Gauge Pressure Transmitter with Remote Diaphragm Seal Introduction

The EJA438 Gauge Pressure Transmitter with Remote Diaphragm Seal is a high - performance instrument designed to meet the challenges of various industrial applications. It combines advanced technology and robust construction to provide accurate and reliable pressure measurement.

The EJA438 Gauge Pressure Transmitter with Remote Diaphragm Seal is a reliable, accurate, and versatile instrument that can meet the diverse needs of modern industrial applications. Its advanced technology, excellent performance, and wide range of applications make it an ideal choice for pressure measurement in various industries.

Function and Performance:

The EJA438 features a rapid response time of only 200 milliseconds. This allows it to quickly detect and respond to changes in pressure, ensuring that the process control system can receive timely and accurate pressure information.
It actively compensates for the density of the capillary filling fluid. This function is crucial in maintaining measurement accuracy, especially in applications where the physical properties of the filling fluid may change due to temperature or other factors.
The transmitter supports multiple communication protocols, including HART 5/7, HART(1 - 5V DC) low - power type, FF fieldbus, PROFIBUS PA, and BRAIN. This wide range of protocol support makes it highly compatible with different industrial control systems, enabling seamless integration into existing process control networks.
The DPharp sensor has a robust design that can withstand overpressure. In addition, the mechanical design inside the diaphragm chamber further provides over - pressure protection. This protects the transmitter from damage caused by incorrect valve group operations and unexpected pressure surges, ensuring its long - term reliable operation.
Thanks to its advanced sensor technology and design, the EJA438 offers excellent long - term stability. This allows for extended calibration intervals, reducing the time and maintenance costs associated with regular calibration.

Application Scenarios:

Output and Configuration:

3.1Measuring Challenging Media
The EJA438 is particularly suitable for measuring the pressure and liquid level of high - temperature, low - temperature, high - vacuum, high - viscosity, and easily crystallized media.
3.2 Flow, Level, and Density Measurement
It can be used to measure the flow, liquid level, density, and pressure of liquids, gases, and steam. In a power plant, it can measure the steam pressure in a boiler; it can measure the liquid level and density of wastewater.
3.3 Situations with Inaccessible Media
When the measured medium cannot be directly introduced into the pressure - receiving part of the transmitter, the EJA438 with its remote diaphragm seal comes into play. The diaphragm seal prevents the process medium from directly entering the pressure sensor component of the differential pressure transmitter. The seal is connected to the transmitter through a capillary filled with fluid, enabling accurate measurement in such difficult - to - access situations.

The EJA438 typically outputs a 4 - 20mA DC current signal, which is a standard and widely used signal in industrial control systems. It also supports digital communication through the above - mentioned protocols for more detailed information exchange, such as real - time parameter adjustment and diagnostic data transmission. It has an optional built - in LCD display that can show pressure percentage, scaled pressure, and measured pressure for on - site monitoring. The power supply voltage requirements vary depending on the type, with 10.5 - 42VDC for general - purpose and explosion - proof types, 10.5 - 32VDC for types with lightning arresters, and 10.5 - 30VDC for intrinsically safe, n - type, and non - flammable types. The wetted part materials (optional) include diaphragm membranes and flushing connection rings. And the filling fluid (optional) can be silicone oil, fluorine oil, or ethylene glycol, which can be selected according to different application requirements.

Specification

Model	EJA438 (Gauge Pressure Transmitter)
Type	Remote diaphragm seal type
Pressure Range	-100 kPa to 100 MPa (varies by model)
Output Signal	4–20 mA DC (2-wire), HART 5/7, BRAIN, or FOUNDATION Fieldbus
Accuracy	±0.075% of span (standard)
Long-Term Stability	±0.1% of URL per 10 years
Ambient Temperature	-40 to +85 °C (-40 to +185 °F)
Process Temperature	-50 to +400 °C (-58 to +752 °F) (depends on seal type)
Supply Voltage	10.5–42 V DC (HART/BRAIN), 9–32 V DC (Fieldbus)
Housing Protection	IP67, NEMA 4X
Material (Wetted Parts)	Stainless steel, Hastelloy, Tantalum (optional)
Diaphragm Seal Options	Flange, threaded, sanitary, or capillary type
Capillary Length	Up to 15 m (49.2 ft) (standard)
Response Time	≤ 0.5 s (without damping)
Overpressure Limit	Up to 200% of URL
Certifications	SIL 2, ATEX, IECEx, PED, CE

Company Profile

Company introduction

Main product

KeRui (weifang) Automation Equipment Co., Ltd.specializes in industrial automation instrument development, production and sales, technical services, and supportingequipment supply of specialized companies. The main products are flow meters, level meters, temperature meters,pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC)DCS distributed control systems,and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco,textile, dyeing, and other felds.

Valve Positioner: A valve positioner is a crucial control device that precisely regulates the position of control valves in industrial processes. It receives control signals from a controller and compares them with the actual valve position.

Flowmeter: A flowmeter is an instrument designed to measure the flow rate of liquids, gases, or steam within a pipeline or channel. 

Transmitter: A  transmitter is a device that senses a physical parameter, like pressure, temperature, or level, and converts it into a standardized output signal, usually 4 - 20 mA DC or digital signals. 

Certifications

Packing & Delivery

FAQ

Q1: How long will it take you to give me the reply?
A: We will reply to you as soon as we see the information
Q2: What is the delivery time?
A: Our delivery time is within 3- 7 days after we get your payment; for large qty mass orders, the time should be confirmed again for you
Q3: How about your package? 
A: Do not worry about the package. We have a lot of experience in packing, and all our packages are wooden case packages.
Q4: How about the payment terms?
A: You can choose T/T.

Q5:Why Buy From Us Instead Of Other Suppliers?

A:We Have More Professional Experience In The Field Of Instrumentation.

Covering Many Well-known Brands Such As Emerson, Fisher,Yokogawa And Honeywell.

Customers All Over The World, Including Southeast Asia, Middle East, Usa And Europe.

Q6:How To Ensure The Quality?

A:We have strict requirements on the quality of our products, and we will conduct a final inspection of our products when we ship them