Yokogawa 438 diaphragm sealed gauge pressure transmitter

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)