EJA120A Micro Differential Pressure Transmitter

NegotiableUpdate on 07/20

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

The EJA120A micro differential pressure transmitter is used to measure the liquid, gas, and vapor levels, densities, and pressures, and then convert them into 4-20mADC current signals for output. EJA120A can also communicate with HART275 handheld devices for setting, monitoring, and other purposes.

Product Details

EJA120A Micro Differential Pressure TransmitterDetailed information:

The EJA120A micro differential pressure transmitter is used to measure the liquid, gas, and vapor levels, densities, and pressures, and then convert them into 4-20mADC current signals for output.

EJA120A is also availableProduced by Jiangsu Wanxun Instrument Co., LtdHART handheld devices communicate with each other for settings, monitoring, etc.

2、 Functional specifications

Output: Two wire system, 4-20mADC output, digital communication, programmable linear or square root output mode, HART protocol loaded on 4-20mADC signal.

supply voltage

10.5-42VDC (working state)

10.5-30VDC (intrinsic safety type)

16.4-42VDC (digital communication)

16.4-30VDC (intrinsic safety type)

Load (when output signal codes are E and S): 0-1335 Ω working state

250-600 Ω digital communication

Damping time constant: the sum of the damping time constants of the amplifier component and the diaphragm box. The damping time constant of the amplifier components can be adjusted within the range of 0.2 to 2 seconds.

Work pressure: -50~50KPa (-7.25~7.25psi)

Environmental temperature: -20-80 ℃ (-13-176 ℃)⁰F）

Liquid contact temperature: -25-80 ℃ (-13-176 ℃)⁰F）

HART: Communication distance: Using multi-core twisted pair cables, the maximum communication distance can reach 1.5Km, and the communication distance varies depending on the cable type.

3、 Performance specifications

Reference accuracy for range adjustment: including linearity, hysteresis, and repeatability from zero) ± 0.2% ± 0.1% (high accuracy)

EJA120A Micro Differential Pressure Transmitter Selection Specificationpriceoutside

model	Specification code	speak bright	Price
EJA120A		minutedifferential pressure transmitter	13660
output signal	-D.......	4-20mA, BRAIN protocol digital communication	0
	-E.......	4-20mA, HART protocol digital communication (see GS1C22T1-CY)	210
	-F.......	FF fieldbus communication (see GS01C22T02-00CY)	1750
	-G.......	PROFIBUS fieldbus communication (see GS01C22T03-00CY)	2110
Measurement range (membrane box)	-E.......	0.1～1kPa{10～100mmHO}	0
Material of the liquid receiving part	S········	[Body] SCS14A (Note 1) SUS316L (Note 2) SUS316	0
pipe connection	0	No process joint (Rcl/4 internal thread on chamber flange)	0
	1········	Process connector with Rcl/4 internal thread	210
	2········	Process joint with Rcl/2 internal thread	210
	3········	Process joint with 1/4NPT internal thread	210
	4········	Process connector with 1/2NPT internal thread	210
	5········	No process joint (1/4NPT internal thread on the chamber flange)	0
Material of bolts and nuts	A········	[Maximum work pressure] SCM435 50kPa{0.5kgf/cm2}	0
	B········	SUS630 50kPa{0.5kgf/cm2}	460
	C········	SUS60 50kPa{0.5kgf/cm2}	1050
Installation method	-2·······	Vertical installation, high pressure on the right side, process connector on top (Note 3)	0
	-3·······	Vertical installation, high pressure on the right side, process connector at the bottom (Note 3)	210
	-6·······	Vertical installation, high pressure on the left, process connector on top (Note 3)	0
	-7·······	Vertical installation, high pressure on the left side, process connector at the bottom (Note 3)	210
	-8·······	Horizontal installation, high pressure on the right side (Note 4)	210
	-9·······	Horizontal installation, high pressure on the left side (Note 4)	210
electrical interface	0..	G1/2 internal thread, 1 wiring port	0
	2........	1/2NPT internal thread, 2 wiring ports	0
	3........	Pg13.5 internal thread, 2 wiring ports	0
	4........	M20 internal thread, 2 wiring ports	0
	5........	G1/2 internal thread, 2 connection ports, with a blind plug	130
	7........	1/2NPT internal thread, two electrical interfaces, one blind plug	50
	8........	Pg13.5 internal thread, two electrical interfaces, one blind plug	210
	9........	M20 internal thread, two electrical interfaces, one blind plug	210
	A........	G1/2 internal thread, two electrical interfaces with a SUS316 blind plug	440
	C........	1/2NPT internal thread, two electrical interfaces with a SUS316 blind plug	530
	D........	M20 internal thread, two electrical interfaces with a SUS316 blind plug	530
Display header	D········	Digital meter head	680
	E········	Digital header with setting button	790
	N········	(No header)	0
2-inch pipe installation bracket	A........	SECC flat bracket	130
	B........	SUS304 flat bracket	340
	J........	SUS316 flat bracket	620
	C........	SECC L-shaped bracket	130
	D........	SUS304 L-shaped bracket	430
	K........	SUS316 L-shaped bracket	780
	N........	No installation bracket	0

Example: EJA120A-EES5A-92NN
Note 1: Refers to the material of the chamber flange and process joint
Note 2: The material of the diaphragm is Hastelloy C-276, and the material of the remaining liquid receiving parts is SUS316L

Note 3: If necessary, select installation brackets with codes C and D
Note 4: If necessary, select installation brackets with codes A and B

Note 5: Not applicable to output signal codes F and G.

Note 6: Users must consider the characteristics of the liquid receiving part and the corrosiveness of the medium. Inappropriate materials may cause unexpected leakage of corrosive media, causing serious damage to human health and factory equipment Attention must be paid when selecting: if the medium has strong corrosion, such as hydrochloric acid、Sulfuric acid H2SSodium hypochlorite, etc150Please contact Yokogawa Instruments for high-temperature steam at or above ℃.
The ※ number is the most representative specification in the standard specifications