Yokogawa EJA115 Low Flow pressure transmitter

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seat: Beijing
Validity to: Long-term effective
Last update: 2017-12-12 05:09
Browse the number: 100
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Product details

The model EJA115 Low Flow Transmitter is a flowmeter comprised of a differential pressure transmitter with an integral orifice and excellent for very low flow measurement. It outputs a 4 to 20 mA DC signal corresponding to the measured flow. The orifice is available in six types with a bore ranging from 0.508 mm to 6.350 mm. The combination of the bore selection with the differential pressure measurement span variation of the differential pressure transmitter enables a wide range of very small flow measurement. The model EJA115 also features remote setup and monitoring through communications with the model BT200/100 BRAIN TERMINAL, CENTUM CS/XL system etc.


 

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.

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:

 

EJA115 Low Flow Transmitter

L Capsule

M Capsule

H Capsule

Water equivalent

0.016 to 7.2 l/min

0.022 to 23 l/min

0.07 to 33 l/min

Air equivalent flow

0.44 to 198 Nl/min

0.63 to 635 Nl/min

2 to 910 Nl/min

Differential pressure span

1 to 10 kPa (2 to 40 inH2O)

2 to 100 kPa (8 to 400 inH2O)

20 to 210 kPa (80 to 840 inH2O)

Accuracy

±5%

±5%

±5%

Degrees of protection

IP67, NEMA 4X, and JIS C0920 immersion proof

Certificates

FM, CENELEC ATEX, CSA, TIIS, 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

-40 to 85 deg C (-40 to 185 deg F) (general use type) -30 to 80 deg C (-22 to 176 deg F) (with integral indicator)

Process temperature

-40 to 120 deg C (-40 to 248 deg F) (general use type)

Maximum working pressure

3.5 MPa (500 psi)

14 MPa (2000 psi)

Mounting

2-inch pipe mounting

Wetted parts material

Capsule

SUS316L(Diaphragm material is Hastelloy C-276)

Manifold

SUS316

Cover flange

SUS316

Housing

Cast aluminum alloy or SUS316 equivalent stainless steel (optional)

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