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EJA120 Micro Differential Pressure Transmitter
Yokogawa EJA120A Micro Differential Pressure Transmitter EJA120A Micro Differential Pressure Transmission is used to measure small differential pressu
Product details

  

Yokogawa EJA120A Micro Differential Pressure Transmitter
The EJA120A micro differential pressure transmitter is used to measure small differential pressures and then convert them into 4-20mADC current signals for output. The Yokogawa EJA120A differential pressure transmitter can also communicate with each other through the BRAN controller, CENTUM CS/μ XL, or Rosemount HART475 controller for setting and monitoring.

EJA120A Micro Differential Pressure Transmitter
E-membrane box
measurement range -1~1kPa(-4~4inH2O)
Measurement range 0.1~1kPa(0.4~4inH2O)
precision ±0.2%
Protection level IP67,NEMA 4X, And JIS C0920 immersion proof type
Explosion proof specifications FM,CENELEC ATEX,CSA,IECEx
output signal 4~20mA DC or FOUNDATION fieldbus or PROFIBUS PA two-wire digital communication
power supply BRAN and HART: 10.5~42V DC (intrinsic safety type: 10.5~30V DC)
Fieldbus: 9~32V DC (Intrinsic Safety Entity Mode 9~24V DC, Intrinsic Safety FISCO Mode 9~17.5V DC)
ambient temperature -25~80℃(-13~176℉)
process temperature -25~80℃(-13~176℉)
Maximum working pressure 50kPa (7.25psi)
install 2-inch pipe installation
Material of liquid receiving components Capsule SUS316L (diaphragm: Hastelloy C-276)
Container flange SUS316
shell Aluminum alloy or SUS316 stainless steel (optional)



Selection Table for EJA120A



Basic specification code: EJA120A-DES5A-92NN

Item 1: Output signal
-D 4-20mA DC/with digital communication (BRAN protocol)
-E 4-20mA DC/with digital communication (HART protocol)
-F FF fieldbus communication
Item 2: Measurement range (membrane box)

E

0.1-1KPa
Item 3: Material of liquid receiving parts

S

JIS SCS14A JIS SUS316L JIS SUS316
Item 4: Process Interface
0 No process joint (Rc1/4 internal thread on chamber flange)
1 Rc1/4 internal thread process joint
2 Rc1/2 internal thread process joint
3 1/4NPT internal thread process joint
4 1/2NPT internal thread process joint
5 No process joint (1/4NPT internal thread on chamber flange)
Item 5: Material of bolts and nuts
A JIS SCM435 50KPa
B JIS SUS630 50KPa
C JIS SUH660 50KPa
Item 6: Installation Method
-2 Vertical piping connection, high pressure on the right, upper installation process joint
-3 Vertical piping connection, high pressure on the right, lower installation process joint
-6 Vertical piping connection, left high pressure, upper installation process joint
-7 Vertical piping connection, left high pressure, lower installation process joint
-8 Horizontal piping connection, high pressure on the right side
-9 Horizontal piping connection, high pressure on the left side
Item 7: Electrical Interface
0 G1/2 internal thread, one electrical interface
2 1/2NPT internal thread, two electrical interfaces, no blind plugs
3 Pg13.5 internal thread, two electrical interfaces, no blind plugs
4 M20 internal thread, two electrical interfaces, no blind plugs
5 G1/2 internal thread, two electrical interfaces, one blind plug
7 1/2NPT internal thread, two electrical interfaces, one blind plug
8 Pg13.5 internal thread, two electrical interfaces, one blind plug
9 M20 internal thread, two electrical interfaces, one blind plug
Item 8: Hidden Display Table
D Digital display table
E Digital display strap measurement range setting button
N none
Item 9: Installing the bracket
A JIS SECC 2 "pipe installation (flat bracket shape)
B JIS SSUS304 2 "pipe installation (flat bracket shape)
C JIS SECC 2 "Pipe Installation (L-shaped)
D JIS SSUS304 2 "Pipe Installation (L-shaped)
N none
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