Yokogawa Electric has launched the OpreX Pressure Transmitter EJX S Series, the successor to its EJX A lineup of plant field instruments.
The new series builds
on over 30 years of experience with silicon resonant sensor technology,
delivering enhancements in accuracy, long-term stability, and durability to
ensure reliable plant operations and improved maintenance efficiency.
Development
Background
Differential and pressure transmitters are critical for measuring pressure,
flow, and liquid levels in industrial plants.
In 1991, Yokogawa
introduced the first differential pressure transmitter equipped with a silicon
resonant sensor, setting a global benchmark for high accuracy and long-term
stability.
Over the years,
evolving market conditions—including stricter regulations, complex supply
chains, labour shortages, and environmental requirements—have increased demand
for devices that not only deliver precise measurements but also reduce
maintenance costs and environmental impact.
The EJX S Series
addresses these needs with advanced features designed for modern plant
environments.
Key Features
The EJX S Series improves operational reliability through Yokogawa’s proven
silicon resonant sensor technology, offering:
- Accuracy: ±0.025% (optional /HAC code)
- Long-term stability: ±0.1% per 20 years
- Rangeability: up to 400:1
- Support for HART and PROFINET
communication protocols
With an IP68 dustproof
and waterproof rating, SIL2 compliance, and enhanced noise immunity, the
devices are highly robust.
A new colour backlit
graphic display improves visibility of process variables and device status.
Maintenance and
Cost Efficiency
The EJX S Series features streamlined specifications, dual power support,
explosion-proof compliance, and advanced diagnostics, reducing the need for
multiple product variants.
Its modular design
simplifies maintenance and parts replacement, lowering operating and inventory
costs.
The LCD display
supports NAMUR NE107-compliant alerts for intuitive status recognition and
faster on-site inspections.
Sustainability
Designed under Yokogawa Trusted Green principles, the EJX S Series reduces CO₂
emissions during production and supports easy disassembly and disposal.
Modular design also
optimises inventory and reduces environmental impact over the product
lifecycle.
Applications and
Markets
The transmitter is suitable for measuring liquid level, flow, and pressure in
tanks and pipes across industries such as oil & gas, LNG, chemicals, power,
renewables, food & pharma, pulp & paper, iron & steel, mining, and
water & wastewater, supporting a wide range of industrial applications. -OGN/TradeArabia News Service