.

Yokogawa 438 diaphragm sealed gauge pressure transmitter

Specification:

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

Diaphragm seal is used to prevent process medium from entering directly into the pressure-sensing assembly of the pressure transmitter. It is connected to the transmitter using capillary filled with fill fluid. Models EJA438W and EJA438N Diaphragm Sealed Gauge Pressure Transmitters can be used to measure liquid, gas or steam pressure. They output a 4 to 20 mA DC signal corresponding to the measured pressure.

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

Diaphragm Sealed Gauge Pressure Transmitters

EJA438W/EJA438N A Capsule

EJA438W B Capsule

EJA438N B Capsule

Range

-0.1 to 3 MPa (-15 to 430 psi)

-0.1 to 14 MPa (-15 to 2000 psi)

-0.1 to 7 MPa (-15 to 1000 psi)

Span

0.06 to 3 MPa (8.6 to 430 psi)

0.46 to 14 MPa (66 to 2000 psi)

0.46 to 7 MPa (66 to 1000 psi)

Accuracy

±0.2%

±0.2%

±0.2%

Degrees of protection

IP67, NEMA 4X, and JIS C0920 immersion proof

Certificates

FM, CENECEC 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 60 deg C (-40 to 140 deg F) (general use type) -30 to 60 deg C (-22 to 140 deg F) (with integral indicator) It must be within the fill fluid operating temprature range

Process temperature

-50 to 300 deg C (-58 to 572 deg F) It must be within the fill fluid operating temprature range

Maximum working pressure

Max. measurement range valve The working pressure must be within the flange rating.

Mounting

Transmitter: 2-inch pipe mounting Diaphragm seal: flange mounting

Process flange size

Flush type: 3-inch (80mm), 2-inch (50mm) Extended type: 4-inch (100mm), 3-inch (80mm)

Diaphragm material

SUS316L, Hastelloy C-276, Tantalum, Titanium

Process flange material

S25C, SUS304, SUS316

Housing

Cast aluminum alloy or SUS316 equivalent stainless steel (optional)

Xi’an HangSi Machinery & Electronic Technology Co., Ltd. was found in 2009 located in Xi'an city, Shaanxi Province, China which as famous by “Culture and Industrial”. We have 100 employees, including 10 technicians. With perfect technological process and service, we specialize in all kinds of transmitters. Our main products include rosemount pressure transmitter, rosemount temperature transmitter, rosemount 3051s flow transmitter, Rosemount 3051CD Differential Pressure Transmitter,liquid level meter, flowmeter, flow meter, thermal resistance, thermocouple,level gauge,temperature controller and sensors. The brands we can supply include Rosemount, Yokogawa, Abb, Honeywell, Siemens, etc.We have attained ISO9001:2008 certification. Moreover, we had won a lot of awards. Most of our products are exported to Europe, the Middle East, Asia, and America. Thanks to more than 5 years hard work, we have enjoyed a high reputation at home and abroad.



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