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EJA118W/EJA118Y/EJA118N Double flanges Differential Pressure Transmitter
  Seal diaphragm is a pressure sensor component that used to prevent process medium directly into the differential pressure transmitter, they are connected with the transmitter through filled with fluid in the capillary.
Description

1. Product brief introduction

  Seal diaphragm is a pressure sensor component that used to prevent process medium directly into the differential pressure transmitter,they are connected with the transmitter through filled with fluid in the capillary. EJX118W, EJA118N and EJA118Y type diaphragm sealed differential pressure transmitter used to measure liquid, gas or steam flow and liquid level, density and pressure, and then transform it into 4 ~ 20 mA DC signal output. EJA pressure transmitter series support BRAIN, HART and FOUNDATION fieldbus PROFIBUS PA or communication protocol.

2.Technical Parameters

Measurement
Span
Mdiaphragm capsule Hdiaphragm capsule
-100~100kPa
(-400~400inH2O)
-500~500kPa
(-2000~2000inH2O)
Measurement
Range
2.5~100kPa
(10~400inH2O)
25~500kPa
(100~2000inH2O)
Accuracy ±0.2% ±0.2%
Level of Protection IP67,NEMA 4X,JIS C0920 The immersion type
explosion-proof FM,CENELEC ATEX,CSA,TIIS,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 -40~60℃(-40~140℉) (Normal)
-30~60℃(-22~140℉) (Built-in indicator in)
The environment temperature must work in filling liquid temperature range.
Process Temperature -50~300℃(-58~572℉)
The environment temperature must work in filling liquid temperature range.
Maximum Pressure Flange pressure rated
Installation Transmitter: 2 - inch pipe installation
Diaphragm seal: flange installation
Size of Flanges Flat flange type: 3-inch(80mm),2-inch(50mm)
The convex flange type: 4-inch(100mm),3-inch(80mm)
combination: Convex flange high side: 4-inch(100mm),The low voltage side of flat flange: 3-inch(80mm)
Diaphragm material SUS316L,HastelloyC-276,Tantalum material, Titanium
The Flange material S25C,SUS304,SUS316
Shell Aluminum alloy or SUS316 stainless steel (optional)

3、Product selection table

  Basic specification code:EJA118W-DMSJ1AA-AA01-92NN

  EJA118W-- Diaphragm sealed 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) *1
-F Digital communication (FOUNDATION Fieldbus protocol) *6
  -G Digital communication (PROFIBUS PA protocol) *10
Measurement span
(capsule)
M 2.5 to 100 kPa {250 to 10000 mmH2O}{10 to 400 inH2O}{25 to 1000 mbar}
H 25-500KPa (0.25-5kgf/cm2)
  [Diaphragm]  [Others]
Wetted parts material *8
S# JIS SUS316L  JIS SUS316L *11
H# Hastelloy C-276 *9Hastelloy C-276 *9
T Tantalum     Tantalum
U Titanium     Titanium  
Process flange rating
J1 JIS 10K
J2 JIS 20K
J4 JIS 40K
A1 ANSI Class 150  P1 . . . . . . . . . . JPI Class 150
A2 ANSI Class 300  P2 . . . . . . . . . . JPI Class 300
A4 ANSI Class 600  P4 . . . . . . . . . . JPI Class 600
D2 DIN PN 10/16
D4 DIN PN25/40
D5 DI PN 64
Process flange
size / material
☆D 3-inch (80 mm) / JIS S25C
E 3-inch (80 mm) / JIS SUS304 *12
F 3-inch (80 mm) / JIS SUS316 *13
 
Cover flange bolts material
☆A JIS SCM435
B JIS SUS630
  [Process temp.]   [Ambient temp.]
Fill fluid
☆-A*2 For general use (silicone oil)  -10 to 250 [1]C  -10 to 60 [1]C
-B For general use (silicone oil)  -30 to 180 [1]C  -15 to 60 [1]C
  -C*3 For high temperature use (silicone oil)  10 to 300 [1]C  10 to 60[1]C
-D*4 For oil-prohibited use (fluorinated oil)  -20 to 120 [1]C  -10 to 60 [1]C
-E For low temperature use (ethylene glycol)  -50 to 100 [1]C  -40 to 60 [1]C
-
A Always A
 
Capillary length (m)
05*5 Specify capillary length from 1 to 10m in  [1] [1]. (Example for 2 m : 02)
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 *7
☆N (None)
Mounting bracket
☆A JIS SECC  2-inch pipe mounting (flat type)
B JIS SUS304  2-inch pipe mounting (flat type)
J JIS SUS316  2-inch pipe mounting (flat type)
  N (None)

  The‘☆’marks indicate the most typical selection for each specification.Example:EJA118W-DMSA1DA-AA02-92NA/

  The ‘#’marks indicate the construction materials conform to NACE material recommendations per MR01-75. For the use of SUS316 ma terial, there may becertain limitations for pressure and temperature. Please refer to NACE standards for details.

  *1:Refer to GS 01C22T01-00E for HART Protocol version.

  *2:In case of Wetted parts material code T (Tantalum), the process temperature limit is -10 to 200 [1]C.

  *3:Wetted parts material code T (Tantalum) cannot be applied.

  *4:Even in case where Fill fluid code D (fluorinated oil) is selected, if degrease cleansing treatment or both degrease cleansing and dehydrating treatmentfor the wetted parts is required, specify Optional code K1 or K5.

  *5: In case of Wetted parts material code H (Hastelloy C), T (Tantalum), and U (Titanium) or Fill fluid code C (for high tempera ture use), specify capillarylength from 1 to 5 m.

  *6:Refer to GS 01C22T02-00E for Fieldbus communication.

  *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 inappr opriate materialscan result in the leakage of corrosive process fluids and cause injury to personnel and/or damage to plant facilities. It is also possible that thediaphragm itself can be damaged and that material from the broken diaphragm and the fill fluid can contaminate the user's proce ss fluids.Be very careful with highly corrosive process fluids such as hydrochloric acid, sulfuric acid, hydrogen sulfide, sodium hypochl orite,and high-temperature steam (150 °C [302° F] or above). Contact Yokogawa for detailed information of the wetted parts material.

  *9: Hastelloy C-276 or ASTM N10276.

  *10:Refer to GS 01C22T03-00E for PROFIBUS PA communication.

  *11:JIS SUS316L or ASTM grade 316L.

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

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