EJA110A Differential Pressure Transmitters

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Overview
Quick Details
Place of Origin:
Japan
Brand Name:
Yokogawa
Model Number:
EJA110A
EJA110:
Pressure Transmitter

Specifications

EJA110A Differential Pressure Transmitters

The EJA Series is available with BRAIN, HART, FOUNDATION™ fieldbus or PROFIBUS PA communication protocols.

The high performance draft range differential pressure transmitter model EJA120A outputs a 4 to 20 mA DC signal corresponding to the measured differential pressure.

Features

Excellent performance and stability

The EJA series uses a silicon resonant sensor formed from monocrystal silicon, a perfect material which has no hysteresis in pressure or temperature changes. The sensor minimizes overpressure, temperature change, and static pressure effects, and thus offers unmatched long-term stability.

Compact and light-weight design

Half the weight of conventional models thanks to miniaturization of the casing with the amplifier ASIC, pressure cell structure, and flange. The ASIC uses the minimum number of parts and improves the reliability of the amplifier.

Fieldbus communication capability

Fieldbus is a digital two-way communication system. It is a revolutionary technology for configuring instrumentation control systems and a promising successor to the standard 4 to 20 mA analog communication used in most field instruments today.

EJA series offers two types of fieldbus models, FOUNDATION™ fieldbus Low Voltage Mode and PROFIBUS PA devices, which ensure interoperability between Yokogawa and other manufactures. As for software, the EJA series incorporates two AI function blocks that compute differential and static pressures to allow flexible configuration of instrumentation.

 

Specifications

 

EJA120A Draft Range Differential Pressure Transmitter

E Capsule

Range

-1 to 1 kPa(-4 to 4 inH2O)

Span

0.1 to 1 kPa(0.4 to 4 inH2O)

Accuracy

±0.2%

Degrees of protection

IP67, NEMA 4X, and JIS C0920 immersion proof

Certificates

FM, CENELEC ATEX, CSA, IECEx

Output

4 to 20 mA DC or FOUNDATION™ fieldbus or PROFIBUS PA 2-wire system with digital communication

Supply voltage

BRAIN and HART:10.5 to 42 V DC (10.5 to 30 V DC for Intrinsically safe type)
Fieldbus:9 to 32 V DC (9 to 24 V DC for Entity model and 9 to 17.5 V DC for FISCO model)

Ambient temperature

-25 to 80 deg C (-13 to 176 deg F)

Process temperature

-25 to 80 deg C (-13 to 176 deg F)

Maximum working pressure

50 kPa (7.25 psi)

Mounting

2-inch pipe mounting

Wetted parts material

Capsule

SUS316L(Diaphragm material is Hastelloy C-276)

Cover flange

SUS316

Housing

Cast aluminum alloy or SUS316 equivalent stainless steel (optional)