Yokogawa Gauge Pressure Transmitter EJA430A-EAS4A-94DA
OVERVIEW
Yokogawa Gauge Pressure Transmitter EJA430A-EAS4A-94DA
The high performance gauge pressure transmitter model EJA430A-EAS4A-94DA can be used to measure liquid, gas, or steam pressure. It outputs a 4 to 20 mA DC signal corresponding to the measured gauge pressure. Model EJA430A-EAS4A-94DA also features remote setup and monitoring through communications with the BRAIN™ terminal and CENTUM CS™ or μXL™ or HART® 275 host.
PHYSICAL SPECIFICATIONS
Yokogawa Gauge Pressure Transmitter EJA430A-EAS4A-94DA
Wetted Parts Materials
Diaphragm, Cover flange, Process connector, and Vent/Drain Plug
Refer to ‘MODEL AND SUFFIX CODE.’
Capsule Gasket
For wetted parts material code S, Teflon-coated
SUS316L.
For wetted parts material code other than S, PTFE(Teflon).
Process Connector Gasket
PTFE Teflon
Fluorinated rubber for Optional code /N2 and /N3
Non-wetted Parts Materials
Bolting
SCM435, SUS630, or SUH660
Housing
Low copper cast-aluminum alloy with polyurethane paint (Munsell 0.6GY3.1/2.0)
Degrees of Protection
IP67, NEMA4X
Cover O-rings
Buna-N, fluoro-rubber (optional)
Name plate and tag
SUS304 or SUS316 (option)
Fill Fluid
Silicone, Fluorinated oil (option)
Weight
3.9 kg (8.6 lbs.) without integral indicator, mounting bracket, and process connector.
Connections
Refer to the model code to specify the process and electrical connection type.
Process Connection of Cover Flange:
DIN 19213 with 7/16 inch x 20 unf female thread.
MODEL AND SUFFIX CODES
Yokogawa Gauge Pressure Transmitter EJA430A-EAS4A-94DA
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Model
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Suffix Codes
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Description
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EJA430A-EAS4A-94DA
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Gauge pressure transmitter
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Output Signal
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-D . . . . . . . . . . . . . . . . . . . . . .
-E . . . . . . . . . . . . . . . . . . . . . .
-F . . . . . . . . . . . . . . . . . . . . . .
-G . . . . . . . . . . . . . . . . . . . . . .
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4 to 20 mA DC with digital communication (BRAIN protocol)
4 to 20 mA DC with digital communication (HART protocol, refer to GS 01C22T01-00E) Digital communication (FOUNDATION Fieldbus protocol, refer to GS 01C22T02-00E)
Digital communication (PROFIBUS PA protocol, refer to GS 01C22T03-00E)
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Measurement span(capsule)
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A . . . . . . . . . . . . . . . . . . . . .
B . . . . . . . . . . . . . . . . . . . . .
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0.03 to 3 MPa {0.3 to 30 kgf/cm2} {4.3 to 430 psi} {0.3 to 30 bar}
0.14 to 14 MPa {1.4 to 140 kgf/cm2} {20 to 2000 psi} {1.4 to 140 bar}
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Wetted parts material*9
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S# . . . . . . . . . . . . . . . . . . . H# . . . . . . . . . . . . . . . . . . . M# . . . . . . . . . . . . . . . . . . . T . . . . . . . . . . . . . . . . . . . . A# . . . . . . . . . . . . . . . . . . . D . . . . . . . . . . . . . . . . . . . . B# . . . . . . . . . . . . . . . . . . .
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[Body]*1 [Capsule] [Vent plug] SCS14A SUS316L *2 SUS316 *11
SCS14A Hastelloy C-276 *3*10 SUS316 *11
SCS14A Monel*3 SUS316 *11
SCS14A Tantalum *3 SUS316 *11
Hastelloy C-276 equivalent*4 Hastelloy C-276 *3*10 Hastelloy C-276*10
Hastelloy C-276 equivalent*4 Tantalum *3 Hastelloy C-276*10
Monel equivalent*5 Monel*3 Monel
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Process connection
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0 . . . . . . . . . . . . . . . . . . .
1 . . . . . . . . . . . . . . . . . . .
2 . . . . . . . . . . . . . . . . . . .
3 . . . . . . . . . . . . . . . . . . .
4 . . . . . . . . . . . . . . . . . . .
5 . . . . . . . . . . . . . . . . . . .
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without process connector (Rc1/4 female on the cover flanges)
with Rc1/4 female process connector with Rc1/2 female process connector with 1/4 NPT female process connector with 1/2 NPT female process connector
without process connector (1/4 NPT female on the cover flanges)
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Bolts and nuts material
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A . . . . . . . . . . . . . . . . . B . . . . . . . . . . . . . . . . . C . . . . . . . . . . . . . . . . .
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[Maximum working pressure]
(A capsule) (B capsule)
SCM435 3 MPa {30 kgf/cm2} 14 MPa {140 kgf/cm2} SUS630 3 MPa {30 kgf/cm2} 14 MPa {140 kgf/cm2} SUH660 3 MPa {30 kgf/cm2} 14 MPa {140 kgf/cm2}
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Installation
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-2 . . . . . . . . . . . . . . .
-3 . . . . . . . . . . . . . . .
-6 . . . . . . . . . . . . . . .
-7 . . . . . . . . . . . . . . .
-8 . . . . . . . . . . . . . . .
-9 . . . . . . . . . . . . . . .
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Vertical impulse piping type, right side high pressure, process connector upside*6
Vertical impulse piping type, right side high pressure, process connector downside*6
Vertical impulse piping type, left side high pressure, process connector upside*6
Vertical impulse piping type, left side high pressure, process connector downside*6
Horizontal impulse piping type, right side high pressure*7
Horizontal impulse piping type, left side high pressure*7
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Electrical connection
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0 . . . . . . . . . . . . . . .
2 . . . . . . . . . . . . . . .
3 . . . . . . . . . . . . . . .
4 . . . . . . . . . . . . . . .
5 . . . . . . . . . . . . . . .
7 . . . . . . . . . . . . . . .
8 . . . . . . . . . . . . . . .
9 . . . . . . . . . . . . . . . A . . . . . . . . . . . . . . . C . . . . . . . . . . . . . . . D . . . . . . . . . . . . . . .
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G1/2 female, one electrical connection
1/2 NPT female, two electrical connections without blind plug Pg 13.5 female, two electrical connections without blind plug M20 female, two electrical connections without blind plug G1/2 female, two electrical connections and a blind plug
1/2 NPT female, two electrical connections and a blind plug Pg 13.5 female, two electrical connections and a blind plug M20 female, two electrical connections and a blind plug
G1/2 female, two electrical connections and a SUS316 blind plug
1/2 NPT female, two electrical connections and a SUS316 blind plug
M20 female, two electrical connections and a SUS316 blind plug
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Integral indicator
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D . . . . . . . . . . . . .
E . . . . . . . . . . . . . N . . . . . . . . . . . . .
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Digital indicator
Digital indicator with the range setting switch*8
(None)
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Mounting bracket
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A . . . . . . . . . . . .
B . . . . . . . . . . . . J . . . . . . . . . . . . C . . . . . . . . . . . . D . . . . . . . . . . . . K . . . . . . . . . . . . N . . . . . . . . . . . .
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SECC Carbon steel 2-inch pipe mounting (flat type) SUS304 2-inch pipe mounting (flat type) SUS316 2-inch pipe mounting (flat type) SECC Carbon steel 2-inch pipe mounting (L type) SUS304 2-inch pipe mounting (L type) SUS316 2-inch pipe mounting (L type) (None)
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Optional codes
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/口 Optional specification
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The ‘女’ marks indicate the most typical selection for each specification. Example: EJA430A-EAS4A-94DA-DAS5A-92NA/口
The ‘#’marks indicate the construction materials conform to NACE material recommendations per MR01-75. For the use of
SUS316 material, there may be certain limitations for pressure and temperature. Please refer to NACE standards for details.
*1: Indicates high pressure side cover flange and process connector material. Material of low pressure side cover flange
(open to atmosphere) is SCS14A.
*2: Diaphragm material is Hastelloy C-276 or ASTM N10276. Other capsule wetted parts materials are SUSF316L, SUS316L or ASTM grade 316L.
*3: Indicates diaphragm and other capsule wetted parts material.
*4: Indicated material is equivalent to ASTM CW-12MW.
*5: Indicated material is equivalent to ASTM M35-2.
*6: If necessary, specify Mounting bracket code C, D or K.
*7: If necessary, specify Mounting bracket code A, B or J.
*8: Not applicable for Output signal code F and G.
*9: Users must consider the characteristics of selected wetted parts material and the influence of process fluids. The use of inappropriate materials can result in the leakage of corrosive process fluids and cause injury to personnel and/or damage to plant facilities. It is also possible that the diaphragm itself can be damaged and that material from the broken diaphragm and the fill fluid can contaminate the user's process fluids.
Be very careful with highly corrosive process fluids such as hydrochloric acid, sulfuric acid, hydrogen sulfide, sodium hypochlorite, and high-temperature steam (150°C [302°F] or above). Contact Yokogawa for detailed information of the wetted parts material.
*10: Hastelloy C-276 or ASTM N10276.
*11: SUS316 or ASTM grade 316.
OPTIONAL SPECIFICATIONS (For Explosion Protected types “0”)
For FOUNDATION Fieldbus explosion protected type, see GS 01C22T02-00E. For PROFIBUS PA explosion protected type, see GS 01C22T03-00E.
Yokogawa Gauge Pressure Transmitter EJA430A-EAS4A-94DA
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Item
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Description
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Code
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Factory Mutual (FM)
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FM Explosionproof Approval *1 *3 *4
Applicable standard: FM3600, FM3615, FM3810, ANSI/NEMA250
Explosionproof for Class I, Division 1, Groups B, C and D
Dust-ignitionproof for Class II/III, Division 1, Groups E, F and G Hazardous (classified) locations, indoors and outdoors (NEMA 4X) Temperature class: T6
Amb. Temp.: –40 to 60oC (–40 to 140oF)
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FF1
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FM Intrinsically safe Approval *1 *3 *4
Applicable standard: FM3600, FM3610, FM3611, FM3810, ANSI/NEMA250
Intrinsically Safe for Class I, Division 1, Groups A, B, C & D, Class II, Division 1, Groups E, F & G and Class III, Division 1 Hazardous Locations.
Nonincendive for Class I, Division 2, Groups A, B, C & D, Class II, Division. 2, Groups E, F & G, and Class III, Division 1 Hazardous Locations.
Enclosure: “NEMA 4X”, Temp. Class: T4, Amb. Temp.: –40 to 60oC (–40 to 140oF) Intrinsically Safe Apparatus Parameters
[Groups A, B, C, D, E, F and G]
Vmax=30 V, Imax=165 mA, Pmax=0.9 W, Ci=22.5 nF, Li=730 μH [Groups C, D, E, F and G]
Vmax=30 V, Imax=225 mA, Pmax=0.9 W, Ci=22.5 nF, Li=730 μH
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FS1
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Combined FF1 and FS1 *1 *3 *4
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FU1
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ATEX
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ATEX FlameproofApproval *2 *4
Applicable standard: EN60079-0, EN60079-1
Certificate: KEMA 02ATEX2148
II 2G Ex d IIC T4, T5, T6
Amb. Temp.: T5; –40 to 80oC ( –40 to 176oF), T4 and T6; –40 to 75oC ( –40 to 167oF) Max. process Temp.: T4; 120oC (248oF), T5; 100oC (212oF), T6; 85oC (185oF)
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KF21
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ATEX Intrinsically safe Approval *2 *3 *4
Applicable standard: EN50014, EN50020, EN50284
Certificate: KEMA 02ATEX1030X
II 1G EEx ia IIC T4, Amb. Temp.: –40 to 60oC (–40 to 140oF) Ui=30 V, Ii=165 mA, Pi=0.9 W, Ci=22.5 nF, Li=730 μH
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KS2
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*1: Applicable for Electrical connection code 2, 7 and C (1/2 NPT female).
*2: Applicable for Electrical connection code 2, 4, 7, 9, C and D (1/2 NPT and M20 female).
*3: Applicable for Output signal code D and E. T05-1E.EPS
For intrinsically safe approval, use the safety barrier certified by the testing laboratories (BARD-400 is not applicable).
*4: Lower limit of ambient temperature is –15˚C (5˚F) when /HE is specified.
