Yokogawa Gauge Pressure Transmitter EJA440A-EDS4A-27DC/FF1
OVERVIEW
Yokogawa Gauge Pressure Transmitter EJA440A-EDS4A-27DC/FF1
Yokogawa Gauge Pressure Transmitter EJA440A-EDS4A-27DC/FF1 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 EJA440A-EDS4A-27DC/FF1 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 EJA440A-EDS4A-27DC/FF1
Wetted Parts Materials
Diaphragm
Hastelloy C-276
Cover flange
SUSF316
Process connector SCS14A (C Capsule) SUS316 (D Capsule)
Capsule Gasket
Teflon-coated SUS316L
Vent and Drain Plug
SUS316 or ASTM grade 316
Process Connector O-ring
Fluorinated rubber (C Capsule with Process connec- tion code 3 and 4)
Glass reinforced Teflon (C Capsule with Process)
connection code 1 and 2 and D Capsule)
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
C capsule: 6.8 kg (15 lb) without integral indicator, mouting bracket, and process connector.
D capsule: 8.0 kg (17.6 lb) without ‚-tegral indicator,
mouting bracket, and process connector.
MODEL AND SUFFIX CODES
Yokogawa Gauge Pressure Transmitter EJA440A-EDS4A-27DC/FF1
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Model
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Suffix Codes
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Description
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EJA440A-EDS4A-27DC/FF1
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. . . . . . . . . . . . . . . .
. . . . . . .
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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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C . . . . . . . . . . . . . . . . . . . .
D . . . . . . . . . . . . .
. . . . . . .
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5 to 32 MPa {50 to 320 kgf/cm2} {720 to 4500 psi} {50 to 320 bar}
5 to 50 MPa {50 to 500 kgf/cm2} {720 to 7200 psi} {50 to 500 bar}
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Wetted parts
material *8
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S# . . . . . . . . . . . . . . . . . .
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[Body] [Capsule] [Vent
plug] SUS316 *1 SUS316L *2 SUS316 *9
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Process connection *10
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0 . . . . . . . . . . . . . . . . . .
1 . . . . . . . . . . . . .
. . . . .
2 . . . . . . . . . . . . .
. . . . .
3 . . . . . . . . . . . . .
. . . . .
4 . . . . . . . . . . . . .
. . . . .
5 . . . . . . . . . . . . .
. . . . .
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without process connector (Rc
1/4 female on the cover flanges)
with Rc 1/4 female process
connector with Rc 1/2 female process connector
with 1/4 NPT female process
connector *6
with 1/2 NPT female process
connector *6
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]
[C Capsule] [D Capsule]
SCM435 32 MPa {320 kgf/cm2} 50
MPa {500 kgf/cm2}
SUS630 32 MPa {320 kgf/cm2} 50
MPa {500 kgf/cm2}
SUH660 *5 32 MPa {320 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*3
Vertical impulse piping type,
right side high pressure, process connector downside*3
Vertical impulse piping type,
left side high pressure, process connector upside*3
Vertical impulse piping type,
left side high pressure, process connector downside*3
Horizontal impulse piping type,
right side high pressure*4
Horizontal impulse piping type,
left side high pressure*4
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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*7
(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 ‘’ marks indicate the most typical selection for each specification. Example: EJA440A-EDS4A-27DC/FF1-DCS5A-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 material of cover flange and process connector;
Capsule code C: cover flange; SUSF316, process connector; SCS14A. Capsule code D: cover flange; SUSF316, process connector; SUS316.
*2: Diaphragm material is Hastelloy C-276 or ASTM N10276. Indicated is other capsule wetted parts material.
*3: If necessary, specify Mounting bracket code C, D or K.
*4: If necessary, specify Mounting bracket code A, B or J.
*5: Not applicable for Capsule code D.
*6: Lower limit of ambient and process temperature is -15Co for Capsule code C.
*7: Not applicable for Output signal code F and G.
*8: Users must consider the characteristics of selected wetted parts material and the influence of process fluids. The use of inappropri- ate 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.
*9: SUS316 or ASTM grade 316.
*10: When not using a process connector, directly use 1/4 NPT or Rc 1/4 male piping to connect to the cover flange, except for the case of C
capsule with 1/4 NPT connection.
