YOKOGAWA EJA438W, EJA438N Diaphragm Sealed Gauge Pressure Transmitters
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 YOKOGAWA EJA438W and YOKOGAWA 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 YOKOGAWA EJA Series is available with BRAIN, HART, FOUNDATION™ fieldbus or PROFIBUS PA communication protocols.
Ordering Examples:
EJA438W-DASA1AA-AA01-92DA
EJA438W-EASA1AA-AA02-92DN
EJA438W-DBSA1AA-AA03-92DB
EJA438W-EBSA1AA-AA04-92DJ
EJA438W-DASJ1AB-AA05-92EA
EJA438W-EASJ2AB-AA06-92EN
EJA438W-DBSJ1AB-AA07-92EB
EJA438W-EBSJ2AB-AA08-92EJ
EJA438N-DASA12GA-AB01-92NB
EJA438N-DBSA12GA-AB02-92DA
EJA438N-EASA12GB-AB03-97EA
EJA438N-EBSA12GA-AB04-97DB
EJA438N-DASJ12GB-AB05-92EB
EJA438N-DBSJ22GA-AB06-92NA
EJA438N-DMSA12GB-AB07-97NN
EJA438N-EMSA12GB-AB08-92DN
EJA438N-DASA12DA-AB01-92NB
EJA438N-DBSA12DA-AB02-92DA
EJA438N-EASA12DB-AB03-97EA
EJA438N-EBSA12DA-AB04-97DB
EJA438N-DASJ12FB-AB05-92EB
EJA438N-DBSJ22FA-AB06-92NA
EJA438N-DMSA12FB-AB07-97NN
EJA438N-EMSA12FB-AB08-92DN
If you do not have complete model number, never mind, just supply us detailed parameters by email, we can choose model number and give you a quotation immediately.
Specifications YOKOGAWA Diaphragm Sealed Gauge Pressure Transmitter EJA438
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Diaphragm Sealed Gauge Pressure Transmitters |
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EJA438W/EJA438N
A Capsule |
EJA438W
B Capsule |
EJA438N
B Capsule |
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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) |
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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) |
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Accuracy |
±0.2% |
±0.2% |
±0.2% |
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Degrees of protection |
IP67, NEMA 4X, and JIS C0920 immersion proof |
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Certificates |
FM, CENECEC ATEX, CSA, TIIS, IECEx |
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Output |
4 to 20 mA DC or FOUNDATION™ fieldbus or PROFIBUS PA 2-wire system with digital communication |
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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) |
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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 |
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Process temperature |
-50 to 300 deg C (-58 to 572 deg F)
It must be within the fill fluid operating temprature range |
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Maximum working pressure |
Max. measurement range valve
The working pressure must be within the flange rating. |
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Mounting |
Transmitter: 2-inch pipe mounting
Diaphragm seal: flange mounting |
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Process flange size |
Flush type: 3-inch (80mm), 2-inch (50mm)
Extended type: 4-inch (100mm), 3-inch (80mm) |
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Diaphragm material |
SUS316L, Hastelloy C-276, Tantalum, Titanium |
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Process flange material |
S25C, SUS304, SUS316 |
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Housing |
Cast aluminum alloy or SUS316 equivalent stainless steel (optional) |
