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Products » Pressure Transmitter » EJA EJX Pressure transmitter
EJA310A Absolute Pressure Transmitter
　　Yokogawa EJA310A absolute pressure transducer is used to measure the pressure of gas, liquid and steam, then transform it into a 4-20 madc current signal output.
Description

1.Features

　　Yokogawa EJA310A absolute pressure transducer is used to measure the pressure of gas, liquid and steam, then transform it into a 4-20 madc current signal output. Yokogawa EJA310A pressure transmitter can also through the BRAIN hand operator or CENTUM CS/mu XL or rosemount HART475 hand operator communicate with each other, through their s setting and monitoring, etc.

Application type Model diaphragm capsule Measurement(KPa) The maximum
Absolute pressure (vacuum) Normal installation EJA310A L 0.67-10 10
M 0.1.3-130 130
H 0.03-3MPa abs 3000 

2.Technical data
  EJA310A absolute pressure transmitter
L capsule M capsule A capsule
Measurement span 0~10kPa abs
(0~2.95inHg abs)		 0~130kPa abs
(0~38inHg abs)		 0~3MPa
(0~430psia)
Measurement range 0.67~10kPa
(0.2~2.95inHg)		 1.3~130kPa
(0.38~38inHg)		 0.03~3MPa
(4.3~430psi)
Accuracy ±0.2% ±0.15% ±0.15%
Level of Protection IP67，NEMA 4X，JIS C0920 The immersion type
explosion-proof FM，CENELEC ATEX，CSA，IECEx
Output Signal 4~20mA DC or FOUNDATION™ fieldbus PROFIBUS PA two wire system of digital communication
Power BRAI and HART:10.5~42V DC (intrinsic safety type: 10.5~30V DC)
Fieldbus:9~32V DC (intrinsic safety typeEntitym model9~24V DC，intrinsic safety typeFISCO model9~17.5V DC)
Environment Temperature -40~85℃(-40~185℉) (normal)
-30~80℃(-22~176℉) (Integral indicator)
Process Temperature M & A capsule: -40~120℃(-40~248℉) (Normal)
L capsule: -40~100℃(-40~212℉) (Normal)
The maximum pressure 500kPa abs
(72psia)		 500kPa abs
(72psia)		 4.5MPa abs
(645psia)
Installation 2-inch Pipe installation
Wetted parts materials diaphragm capsule SUS316L (HastelloyC-276)
Cover flange SUS316
Shell Aluminum alloy or SUS316 stainless steel (optional)
3.Production selection list
Basic specification code：EJA310A-DMS5A-92NN
EJA310A-------Absolute pressure transmitter
Output Signal
-D 4 to 20 mA DC with digital communication (BRAIN protocol)
-E 4 to 20 mA DC with digital communication (HART protocol, refer to GS 01C22T01-00E)
-F Digital communication (FOUNDATION Fieldbus protocol, refer to GS 01C22T02-00E)
-G Digital communication (PROFIBUS PA protocol, refer to GS 01C22T03-00E)
Measurement span
(capsule)
L 0.67 to 10 kPa {5 to 75 mmHg} {0.2 to 2.95 inHg abs} {6.7 to 100 mbar}
M 1.3 to 130 kPa {9.6 to 960 mmHg} {0.38 to 38 inHg abs} {13 to 1300 mbar}
A 0.03 to 3 MPa {0.3 to 30 kgf/cm2} {4.3 to 430 psia} {0.3 to 30 bar}
Wetted parts material
*6
S [Body]   [Capsule]  [Vent plug]
SCS14A*1   SUS316L*2  SUS316*7
Process connections
0 without process connector (Rc1/4 female on the cover flanges)
1 with Rc1/4 female process connector
2 with Rc1/2 female process connector
3 with 1/4 NPT female process connector
4 with 1/2 NPT female process connector
☆5 without process connector (1/4 NPT female on the cover flanges)
Bolts and nuts material
☆A   (L capsule)  (M capsule)  (A capsule)
SCM435  10 kPa abs  130 kPa abs  3 MPa abs {75 mmHg abs}  {960 mmHg abs}  {30 kgf/cm2 abs}
B SUS630  10 kPa abs  130 kPa abs  3 MPa abs
C SUH660  10 kPa abs  130 kPa abs  3 MPa abs）
Installation
-2 Vertical impulse piping type, right side high pressure, process connector upside*3
-3 Vertical impulse piping type, right side high pressure, process connector downside*3
-6 Vertical impulse piping type, left side high pressure, process connector upside*3
-7 Vertical impulse piping type, left side high pressure, process connector downside*3
-8 Horizontal impulse piping type, right side high pressure*4
☆-9 Horizontal impulse piping type, left side high pressure*4
Electrical connection
0 G1/2 female, one electrical connection
☆2 1/2 NPT female, two electrical connections without blind plug
3 PG 13.5 female, two electrical connections without blind plug
4 M20 female, two electrical connections without blind plug
5 G1/2 female, two electrical connections and a blind plug
7 1/2 NPT female, two electrical connections and a blind plug
8 PG 13.5 female, two electrical connections and a blind plug
9 M20 female, two electrical connections and a blind plug
A G1/2 female, two electrical connections and a SUS316 blind plug
C 1/2 NPT female, two electrical connections and a SUS316 blind plug
D M20 female, two electrical connections and a SUS316 blind plug
Integral indicator
D Digital indicator
E Digital indicator with the range setting switch*5
☆N (None)
Mounting bracket
☆A SECC Carbon steel   2-inch pipe mounting (flat type)
B SUS304      2-inch pipe mounting (flat type)
J SUS316      2-inch pipe mounting (flat type)
C SECC Carbon steel   2-inch pipe mounting (L type)
D SUS304      2-inch pipe mounting (L type)
K SUS316      2-inch pipe mounting (L type)
N (None)

　　The‘☆’marks indicate the most typical selection for each specification. Example: EJA310A-DMS5A-92NN

　　The ‘#’marks indicate the construction materials conform to NACE material recommendations per MR01-75. For the use ofSUS316 material, there may be certain limitations for pressure and temperature. Please refer to NACE standards for details.

　　*1：Low pressure side wetted parts material: Cover flange; SCS14A, Process connector; SCS14A,Capsule; SUSF316L, SUS316L or ASTM grade 316L (Diaphragm; Hastelloy C-276 or ASTM N10276), Vent plug; SUS316 or ASTMgr ade 316

　　*2：Not applicable for Output signal code F and G.

　　*3：Users must consider the characteristics of selected wetted parts material and the influence of process fluids.The use of inapp ropri-ate materials can result in the leakage of corrosive process fluids and cause injury to personnel and/or damage to plant facilities. Itis also possible that the diaphragm itself can be damaged and that material from the broken diaphragm and the fill fluid cancontaminate 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.

　　*4：Hastelloy C-276 or ASTM N10276.

　　*5：SUS316 or ASTM grade 316.

　　*6：SUS304 or ASTM grade 304. Forged version may be used.

　　*7：SUS316 or ASTM grade 316. Forged version may be used

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