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Jiangsu Jieda Instrument Technology Co., Ltd

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jszbl0909@163.com
Phone
18015193290
Address
No. 28 Gong'er Road, Jinhu Economic Development Zone, Jiangsu Province

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Diaphragm sealed pressure transmitter (convex diaphragm shape)

NegotiableUpdate on 12/02

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

Sealing diaphragm is used to prevent the medium in the pipeline from directly entering the pressure sensor component of the differential pressure transmitter. It is connected to the transmitter by a capillary tube filled with fluid. EJA438W and EJA438N diaphragm sealed pressure transmitters are used to measure the pressure of gases, liquids, and vapors, and then convert them into 4-20mADC current signals for output. Diaphragm sealed pressure transmitter (convex diaphragm shape)

Product Details

Product Name:Diaphragm sealed pressure transmitter (convex diaphragm shape)

Product features: The sealing diaphragm is used to prevent the medium in the pipeline from directly entering the pressure sensor component of the differential pressure transmitter. It is connected to the transmitter by a capillary tube filled with fluid. EJA438W and EJA438N diaphragm sealed pressure transmitters are used to measure the pressure of gases, liquids, and vapors, and then convert them into 4-20mADC current signals for output

Diaphragm sealed pressure transmitter (convex diaphragm shape)Introduction:

Sealing diaphragm is used to prevent the medium in the pipeline from directly entering the pressure sensor component of the differential pressure transmitter. It is connected to the transmitter by a capillary tube filled with fluid. EJA438W and EJA438N diaphragm sealed pressure transmitters are used to measure the pressure of gases, liquids, and vapors, and then convert them into 4-20mADC current signals for output. EJA438W and EJA438N can also communicate with each other through the BRAN controller, CENTUM CS/μ XL, or HART 275 controller for setting and monitoring purposes.

Application	Type	model	Membrane box	Range (MPa)	The biggest work pressure
Pressure (diaphragm sealed)	Convex membrane	EJA438N	A	0.06-3	Based on flange specifications
			B	0.46-7
	Flat membrane	EJA438W	A	0.06-3
			B	0.46-14

List of Selection for Diaphragm Sealed Pressure Transmitters

Basic specification code: EJA438N-DASJ12GA-AB01-92NN

Item 1: Output signal

-D	4-20mA DC/BRAN protocol digital communication
-E	4-20mA DC/HART protocol digital communication
-F	FF fieldbus communication

Item 2: Measurement range (membrane box)

A	0.06-3MPa（0.6-30kgf/cm2）
B	0.46-7MPa（4.6-70kgf/cm2）

Item 3: Material of liquid receiving parts

S	[Diaphragm] JIS SUS316L [Tube] JIS SUS316L [Other] JIS SUS316

Item 4: Flange specifications

J1	JIS 10K
J2	JIS 20K
J4	JIS 40K
A1	ANSI 150
A2	ANSI 300
P1	JPI 150
P2	JPI 300
D2	DIN PN10/16
D4	DIN PN25/40
G2	GB PN10/16
G4	GB PN25/40
G6	GB PN100

Item 5: Diaphragm protrusion length (X2)

2	X2=50mm
4	X2=100mm
6	X2=150mm

Item 6: Flange size/material

G	100mm（4'）/JIS S25C
H	100mm（4'）/JIS SUS304
J	100mm（4'）/JIS SUS316

Item 7: Material of bolts and nuts

A	JIS SCM435
B	JIS SUS630

Item 8: Filling solution

-A	Generally, silicone oil is used for liquid contact at a temperature of -10-250 ℃ and an ambient temperature of -10-60 ℃
-B	Generally, silicone oil is used for liquid contact at a temperature of -30-180 ℃ and an ambient temperature of -15-60 ℃
-C	High temperature (silicone oil) contact temperature 10-300 ℃ ambient temperature 10-60 ℃
-D	Prohibited oil (fluorine oil) contact temperature -20-120 ℃ ambient temperature -10-60 ℃
-E	Low temperature (ethylene glycol) contact temperature -50-100 ℃, ambient temperature -40-60 ℃

Item 9:

B	Always for B

Item 10: Capillary length (m)

01	Capillary length 1m
02	Capillary length 2m
03	Capillary length 3m
04	Capillary length 4m
05	Capillary length 5m
06	Capillary length 6m
07	Capillary length 7m
08	Capillary length 8m
09	Capillary length 9m
10	Capillary length 10m

Item 11: Installation Method

-9	Horizontal piping connection, with the left high-pressure capillary tube leading out from the front

Item 12: 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 13: Hidden Display Table

D	Digital display table
E	Digital display table with measurement range setting button
N

Item 14: Installing the bracket

A	JIS SECC 2 "pipe installation (flat bracket shape)
B	JIS SUS304 2 "pipe installation (flat bracket shape)
N

Additional functions of diaphragm sealed pressure transmitter

Item 1: Explosion proof type, intrinsic safety type

no
NF1	NEPSI Explosion proof Permit: d Ⅱ CT6 Environmental Temperature: -40-60 ℃ Electrical Interface: 1/2NPT Internal Thread
JF3	JIS 隔爆 Ex ds Ⅱ C T4X
JF35	JIS 隔爆 Ex ds Ⅱ C T4X
FF1	FM Explosion proof: Class I, II&III, Zone 1&2, Groups B, C, D, E, F&G NEMA 4X T6
FF15	FM Explosion proof: Class I, II&III, Zone 1&2, Groups B, C, D, E, F&G NEMA 4X T6
KF1	CENELEC explosion-proof: EEx d Ⅱ C T4, T5, T6 maximum liquid contact temperature: T4-135 ℃, T5-100 ℃, T6-85 ℃
CF1	CSA Explosion proof: Class I, II&III, Zone 1&2, Groups B, C, D, E, F&G Type 4X T4, T5, T6
CF15	CSA Explosion proof: Class I, II&III, Zone 1&2, Groups B, C, D, E, F&G Type 4X T4, T5, T6
NS1	NEPSI intrinsic safety license: ia Ⅱ CT4 environmental temperature: -40-60 ℃ electrical interface: 1/2NPT internal thread
JS3	JIS 本安： Exia Ⅱ C T4
FS1	FM intrinsic safety: Class I, II&III, Zone 1, Groups A, B, C, D, E, F, G, T4
KS1	CENELEC intrinsic safety: EEx ia Ⅱ C T4
CS1	CSA intrinsic safety: Class I, II&III, Zone 1, Groups A, B, C, D, E, F, G T4
FU1	Including FF1 and FS1
KU1	Including KF1, KS1, and N-type KEMAN EX nAII CT4
CU1	Including CF1 and CS1
SU1	SAA explosion-proof, intrinsic safety, and non sparking types: Ex d Ⅱ T6/T5/T4 IP67, Exia Ⅱ CT4 IP67, Exn Ⅱ CT4 IP67
KF5	CENELEC 隔爆： EEx d Ⅱ C T4、T5、T6
KS5	CENELEC (KEMA) intrinsic safety explosion-proof: : EEx ia Ⅱ CT4; : EEx ia Ⅱ CT4/EEx ia Ⅱ BT4

Item 2: Japanese standard explosion-proof joint

no
G11	Power interface: G1/2 internal thread 1 available cable outer diameter: 8.5-11mm
G12	Power interface: G1/2 internal thread 2 available cable outer diameter: 8.5-11mm

Item 3: Explosion proof sealing joint

no
G71	Wiring port: 1/2NPT 1 steel pipe wiring method Applicable cable outer diameter: Φ 8.5 ± 0.5
G72	Wiring port: 1/2NPT 1 cable wiring method Applicable cable outer diameter: Φ 8.5 ± 0.5
G81	Wiring port: 1/2NPT 2 steel pipes Wiring method Applicable cable outer diameter: Φ 8.5 ± 0.5
G82	Wiring port: 1/2NPT 2 cable wiring method Applicable cable outer diameter: Φ 8.5 ± 0.5

Item 4: Painting and Color Change

no
P1	Only applicable to transmitter housing
P2	Only applicable to transmitter housing
P7	Only applicable to transmitter housing
X1	Color Baked Epoxy

Item 5: Lightning Protection Device

no
A	Transmitter power supply voltage: 10.5-32V DC (intrinsic safety type: 10.5-30V DC, fieldbus communication: 9-32V DC) Maximum allowable current: 6000A (1X4 μ S), repeated 1000A (1X40 μ S) 100 times

Item 6: Prohibition of oil treatment or prohibition of water and oil treatment

no
K1	Degreasing and cleaning treatment
K5	Defatting, washing and drying treatment

Item 7: Calibration Unit

no
D1	P correction (in psi units)
D3	Bar calibration (bar unit)
D4	M correction (in kgf/cm2 units)

Item 8: Sealing treatment of SUS 630 nut

no
Y	Surface coating (liquid silicone rubber) on SUS630 bolts and nuts for the flange of the forbidden solid capacity chamber

Item 9: Non serrated shape

no
Q	The flange sealing surface is not serrated (only ANSI flanges)

Item 10: Zero point compensation for liquid contact temperature

no
R	Compensation range: 80-300 ℃

Item 11: PVC (vinyl chloride) is not protected outside the capillary tube

no
V	The maximum operating temperature is 100 ℃, used in environments where the use of PVC (vinyl chloride) is prohibited

Item 12: Quick Response

no
F1	Refresh time: ≤ 0.125 seconds Response time (including minimum damping time constant): 0.2 seconds (including isolation diaphragm)

Item 13: When abnormal, set the output to low side or NAMUK NE43

no
C1	Low side: ≤ -5% (3.2mm)
C2	(NAMUK NE43) [Output signal 3.8-20.5mA] Fault alarm output -5%, below 3.2mA
C3	(NAMUK NE43) [Output signal 3.8-20.5mA] Fault alarm output 110%, above 21.6mA

Item 14: Stainless steel amplifier housing

no
E1	Amplifier casing material: SCS14A stainless steel (equivalent to SUS316L cast stainless steel or ASTM CF-8M)

Item 15: PID/LM Function

no
LC1	PID control function, Link Master function

Item 16: Gold plated film

no
A1	Gold plating on sealing membrane

Item 17: Accessory Manufacturing Certificate

no
M05	Flange and diaphragm seat
M06	Flange, diaphragm seat, base, insertion cylinder

Item 18: Proof of Stress Test/Leakage Test

no
T41	A membrane box JIS 10K test pressure: 2MPa {20kgf/cm2} test fluid: nitrogen (N2) retention time: 10 minutes
T42	A membrane box JIS 20K test pressure: 3MPa {30kgf/cm2} test fluid: nitrogen (N2) retention time: 10 minutes
T43	A membrane box JIS 40K test pressure: 3MPa {30kgf/cm2} test fluid: nitrogen (N2) retention time: 10 minutes
T46	A membrane box ANSI/JPI 150 test pressure: 3MPa {29.8kgf/cm2} test fluid: nitrogen (N2) retention time: 10 minutes
T47	A membrane box ANSI/JPI 300 test pressure: 3MPa {30kgf/cm2} test fluid: nitrogen (N2) retention time: 10 minutes
T31	B membrane box JIS 10K test pressure: 2MPa {20kgf/cm2} test fluid: nitrogen (N2) retention time: 10 minutes
T32	B membrane box JIS 20K test pressure: 5MPa {50kgf/cm2} test fluid: nitrogen (N2) retention time: 10 minutes
T34	B membrane box JIS 40K test pressure: 7MPa {70kgf/cm2} test fluid: nitrogen (N2) retention time: 10 minutes
T36	B membrane box ANSI/JPI 150 test pressure: 3MPa {29.8kgf/cm2} test fluid: nitrogen (N2) retention time: 10 minutes
T38	B membrane box ANSI/JPI 300 test pressure: 7MPa {70kgf/cm2} test fluid: nitrogen (N2) retention time: 10 minutes