Product Description

The Yokogawa EJX120A Differential Pressure Transmitter is a high-performance draft range DP transmitter designed for precise measurement of differential pressure in industrial processes.

Based on Yokogawa’s advanced DPharp digital sensor technology, it provides high stability, fast response, and long-term accuracy. It is widely used for liquid level measurement in pressurized tanks, flow measurement with primary elements, and density or interface detection in process industries.

The EJX120A is known for its excellent long-term stability and diagnostic capabilities, helping reduce maintenance costs and improve process reliability in demanding environments such as oil & gas, chemical plants, and power generation systems.

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Key Features

• High-precision DPharp digital sensor technology
• Accuracy up to ±0.09% of span
• Fast response time (150 ms)
• Long-term stability ±0.15% per year
• Suitable for liquid, gas, and steam applications
• SIL2 / SIL3 safety certification
• HART / Fieldbus communication options
• Advanced diagnostics for impulse line detection
• Robust industrial-grade construction

Applications

• Pressurized tank level measurement
• Flow measurement using orifice plates
• Chemical process monitoring
• Oil & gas pipeline systems
• Steam and boiler systems
• Density and interface measurement
• Power plant process control
• Industrial automation systems

Selection Notes

Before selecting EJX120A, confirm:

• Required differential pressure range (draft range selection)
• Static pressure conditions (MWP limits)
• Medium type (liquid / gas / steam)
• Installation type (flanged / manifold mounting)
• Output protocol (4–20 mA / HART / Fieldbus)
• Safety certification requirement (SIL2 / SIL3)
• Need for remote configuration or display

FAQ

Q: What is Yokogawa EJX120A used for?
A: It is used for differential pressure measurement in level, flow, and density applications.

Q: What technology does EJX120A use?
A: It uses Yokogawa’s DPharp digital resonant silicon sensor technology.

Q: What is the accuracy of EJX120A?
A: It offers up to ±0.09% accuracy of span.

Q: Can it be used for level measurement?
A: Yes, it is widely used for differential pressure level measurement in tanks.

Q: Does it support HART communication?
A: Yes, it supports HART and other industrial communication protocols.

Q: Is it suitable for safety applications?
A: Yes, it is certified for SIL2/SIL3 safety instrumented systems.