Yokogawa EJA438E-DASCG-915DN-EJ24BSE01-AB24/KF22 Diaphragm Sealed Gauge Pressure Transmitter

EJA438E Diaphragm sealed pressure transmitter adopts monocrystalline silicon resonant sensing technology, suitable for measuring the pressure and liquid level of high and low temperature, high vacuum, high viscosity and easy crystallizing medium.All EJA - E series models In their Standard Configuration, with the exception Of the Fieldbus, PROFIBUS and Low Power types, Are certified as Australia with SIL 2 for safety requirement.

Product Details

Yokogawa EJA438E-DASCG-915DN-EJ24BSE01-AB24/KF22 Diaphragm Sealed Gauge Pressure Transmitter

EJA-E series transmitters except Fieldbus,  PROFIBUS PA and 1-5V DC with HART (Low Power)  communication types are certified in compliance with  the following standards; IEC 61508: 2000; Part1 to Part 7 Functional Safety of Electrical/electronic/ programmable electronic related systems; SIL 2  capability for single transmitter use, SIL 3 capability  for dual transmitter use.


Output “◊” 

For 4 to 20 mA HART / BRAIN (Output signal code D and J) 

Two wire 4 to 20 mA DC output with digital  communications. 

BRAIN or HART FSK protocol are superimposed on  the 4 to 20 mA signal. 

Output range: 3.6 mA to 21.6 mA 

Output limits conform to NAMUR NE43 can be preset  by option code C2 or C3. 

For 1 to 5 V HART (Output signal code Q) 

Three or four wire low power 1 to 5 V DC output with  HART, linear or square root programmable. HART  protocol are superimposed on the 1 to 5 V DC signal. Output range: 0.9 V to 5.4 V DC

NORMAL OPERATING CONDITION (Optional features or approval codes may affect limits.)

Ambient Temperature Limits 

−40 to 60°C (−40 to 140°F) 

−30 to 60°C (−22 to 140°F) with LCD display (Note: The ambient temperature limits must be within the  fill fluid operating temperature range, see table 1.)

Ambient Humidity Limits 

0 to 100% RH

Process connection size code

3 (3-inch)


Extended type: 12.2 kg (26.9 lbs) (4-inch ANSI Class150 flange, extention length  (X2)=100 mm, capillary length 5 m; without integral  indicator and mounting bracket.) Add 1.5kg (3.3lb) for Amplifier housing code 2


The model and suffix codes for EJA438E consist of two parts; a transmitter body section (I) and a diaphragm seal  section (II).

EJA438E (3)

Ⅰ   Transmitter body section

EJA438E (6)

-D                    4 to 20 mA DC with digital communication (BRAIN protocol)

A                       0.06 to 3.5 MPa (8.6 to 500 psi)

S                       Always S

C                       Always C

G                       316L SST

-9                      Horizontal piping type and left side high pressure

1                       Cast aluminum alloy

5                       G 1/2 female, two electrical connections with a blind plug *5

D                       Digital indicator*6

N                       None

II. Diaphragm seal section (Extended type) 

Process connection size: 4-inch (100 mm) / 3-inch (80 mm)

EJA438E (5)

-E                       Extended type

J2                       JIS 20K

4                             4-inch (100 mm)

B                             304 SST *5

SE                           316L SST

0                             None

1                             Length (X2) = 50 mm

-A                           For general use (silicone oil)

B                             Back of diaphragm seal unit

2                             Always 2

4                             4 m

KF22                       ATEX Flameproof Approval *1*3 Applicable Standard: EN 60079-0:2009, EN 60079-1:2007, EN 60079-31:2009 Certificate: KEMA 07ATEX0109 X II 2G, 2D Ex d IIC T6...T4 Gb, Ex tb IIIC T85°C Db IP6X Degree of protection: IP66/IP67 Amb. Temp. (Tamb) for gas-proof : T4; –50 to 75°C (–58 to 167°F), T5; –50 to 80°C (–58 to 176°F), T6; –50 to 75°C (–58 to 167°F)  Max. process Temp. for gas-proof (Tp): T4; 120°C (248°F), T5; 100°C (212°F), T6; 85°C (185°F) Max. surface Temp. for dust-proof: T85°C (Tamb: –30 to 75°C, Tp: 85°C) *2   


< Transmitter body section >

Terminal ConfigurationEJA438E (7)

< Diaphragm seal section >Extended typeEJA438E (8)

EJA438E (9)

Company profile

Shaanxi Tebess Electronic Technology Co. LTD established on June 8th of 2010. 

We are authorized instruments distributor of yokogawa, Rosemount, Endress Hauser, honeywell , ABB, YTC .

We offer original products in best price and fastest delivery time, especially for pressure transmitter,

temperature transmitter,flow meterS and valve positioner.

Forwarder  introduce


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