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EJA210A/EJA220A Flange Mounted Differential Pressure Transmitter
  Yokogawa EJA210A and Vokogawa EJA220A flange installation type differential pressure transmitter used to measure the liquid containing solid and precipitation and the liquid level and density of steam, then transform it into a 4-20 madc current signal o
Description

1、Introduction

  Yokogawa EJA210A and Vokogawa EJA220A flange installation type differential pressure transmitter used to measure the liquid containing solid and precipitation and the liquid level and density of steam, then transform it into a 4-20 madc current signal output. Yokogawa EJA210A and yokogawa EJA220A can also through the BRAIN hand operator or CENTUM CS/mu XL or rosemount HART 475 hand operator mutual communication,through them to set and monitor, etc.

Application type Model diaphragm capsule Measurement(KPa) The maximum
Opening level,
Closed container
Flat diaphragm EJA210A
EJA220A
M 1-100 Based on the flange specifications
Convex diaphragm H 5-500MPa

2. Specification
  EJA210A / EJA220AFlange Mounted Differential PressureTransmitters
M diaphragm capsule H diaphragm capsule
Measurement span
-100~100kPa
(-400~400inH2O)
-500~500kPa
(-2000~2000inH2O)
Measurement range
1~100kPa
(4~400inH2O)
5~500kPa
(20~2000inH2O)
Accuracy ±0.2% ±0.2%
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℉) (Built-in indicator in)
Process Temperature -40~120℃(-40~248℉) (Normal)
The maximum pressure Flange pressure rated
Installation Flange installation
Flange size EJA210A: 3-inch (80mm),2-inch (50mm)
EJA220A: 4-inch (100mm),3-inch (80mm)
Diaphragm material
(high side)
SUS316L,HastelloyC-276,Tantalum material, Titanium
The flange material S25C,SUS304,SUS316
Shell Aluminum alloy or SUS316 stainless steel (optional)
3Product selection list
Basic specification codeEJA210A-DMWJ1A5A-92NN
EJA210A-----Flange-mounted differential pressure transmitter (Flush diaphragm type)
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)
M 1-100KPa
H 5-500KPa
High pressure side
(Process flange side)
wetted parts material*1*3
S# SUS316L   SUS316*5
H# Hastelloy C-276*4  Hastelloy C-276*4
T Tantalum   Tantalum
Process flange rating
J1 JIS 10K
J2 JIS 20K
A1 ANSI Class 150  P1 . . . . . . . . . . JPI Class150
A2 ANSI Class 300  P2 . . . . . . . . . . JPI Class 300
D2 DIN PN10/16
D4 DIN PN25/40
Process flange
size / material
☆D 3-inch (80 mm) / S25C
E 3-inch (80 mm) / SUS304*6
F 3-inch (80 mm) / SUS316*7
Low pressure side process
connection
0 without process connector (Rc1/4 female on the cover flange)
1 with Rc1/4 female process connector
2 with Rc1/2 female process connector
3 with 1/4NPT female process connector
4 with 1/2NPT female process connector
☆5 without process connector (1/4 NPT female on the cover flange)
Bolts and nuts material
☆A JIS SCM435
B JIS SUS630
C JIS SUH660
Installation
-9 Horizontal impulse piping type, left side high pressure
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*2
☆N (None)
-
N Always N

  The‘☆’marks indicate the most typical selection for each specification. Example: EJA210A-DMSA1D5A-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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