EJA130A高靜壓差壓變送器EJA130A型高性能的差壓變送器可用于測量液體、氣體或蒸汽的流量，以及液位、密度和壓力。產品信息EJA130

 西安西弘自動化設備有限公司，位于全國最大的儀表生產基地之一的陜西省西安市，是一家從事熱電偶、壓力傳感器、壓力變送器、壓力儀器儀表、稱重傳感器、稱重變送器、稱重儀器儀表、壓力控制器、壓力開關、溫度傳感器、溫度變送器、溫度儀器儀表等產品的研發、生產、銷售的廠家。壓力、稱重、溫度等自動化測量控制系統的設計、安裝、調試服務。產品涵蓋電力（火電、水電、核電）、石油、化工、紡織、冶金、機械、國防、科研、醫藥、食品等行業。產品已由國內市場拓展至港臺及歐洲市場，壓力傳感器、壓力變送器產品性能已逐步同國際市場接軌，完全可替換國外同類型產品。 

 EJA130A高靜壓差壓變送器

EJA130A型高性能的差壓變送器可用于測量液體、氣體或蒸汽的流量，以及液位、密度和壓力。

產品信息



EJA130A型高性能的差壓變送器可用于測量液體、氣體或蒸汽的流量，以及液位、密度和壓力，然后將其轉換成4~20mA DC的電流信號輸出。



EJA系列支持BRAIN、HART和FOUNDATION™現場總線或PROFIBUS PA通信協議。

特性

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的性能和穩定性



EJA系列采用單晶硅諧振式傳感器技術。單晶硅對于壓力或溫度的變化不存在滯后現象，是非常理想的材料。單晶硅諧振式傳感器將過壓、溫度變化和靜壓影響降為zui低，從而提供的長期穩定性。



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小型輕量設計



由于采用ASIC放大器設計使包裝變小，以及膜盒構造和法蘭的小型化，這款機型的重量降到了原有機型的一半。ASIC設計不僅減少了零件數量，而且提高了放大器的可靠性。



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現場總線通信能力



現場總線是雙向數字通信系統，是配置儀表控制系統的革新技術，同時也是前景很好的更新換代產品，用于替換現在現場儀表中廣泛使用的標準4~20mA模擬通信。
EJA系列提供兩種現場總線模式，FOUNDATION™現場總線低壓模式和PROFIBUS PA設備，以實現橫河電機和其他供應商的協同工作。軟件方面，EJA系列采用兩個AI功能塊計算差壓和靜壓，從而實現靈活的儀表配置。

規格



EJA130A高靜壓差壓變送器

M膜盒

H膜盒

測量范圍

-100~100kPa
(-400~400inH2O)

-500~500kPa
(-2000~2000inH2O)

測量量程

1~100kPa
(4~400inH2O)

5~500kPa
(20~2000inH2O)

精度

±0.065%

±0.065%

防護等級

IP67，NEMA 4X,和JIS C0920防浸型

防爆規格

FM，CENELEC ATEX，CSA，IECEx

輸出信號

4~20mA DC或FOUNDATION™現場總線或PROFIBUS PA兩線制數字通信

電源

BRAIN和HART:10.5~42V DC (本安型: 10.5~30V DC)
Fieldbus:9~32V DC (本安Entity模式9~24V DC，本安FISCO模式9~17.5V DC)

環境溫度

-40~85℃ (-40~185℉) (普通型)
-30~80℃ (-22~176℉) (內藏指示器)

過程溫度

-40~120℃ (-40~248℉) (普通型)

zui大工作壓力

32MPa (4500psi)

安裝

2-inch管安裝

接液部件材質

膜盒

SUS316L (膜片: 哈氏合金C-276)

容室法蘭

SUS316

外殼

鋁合金或SUS316不銹鋼(可選)



產品選型 4

Model

Suffix Codes

Description

EJA130A

. .

Differential pressure transmitter

Output Signal

-D . . . . . . . . . . . .

-E . . . . . . . . . . . . . . . . . . . . .

-F . . . . . . . . . . . . . . . . . . . . .

-G . . . . . . . . . . . . . . . . . . . . .

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

4 to 20 mA DC with digital communication (HART protocol, refer to GS 01C22T01-00E)

Digital communication (FOUNDATION Fieldbus protocol, refer to GS 01C22T02-00E)

Digital communication (PROFIBUS PA protocol, refer to GS 01C22T03-00E)

Measurement span(capsule)

M . . . . . . . . . . . . . . . . . . .

H . . . . . . . . . . . . . . . . . . .

1 to 100 kPa { 100 to 10000 mmH2O} { 4 to 400 inH2O} { 10 to 1000 mbar}

5 to 500 kPa { 0.05 to 5 kgf/cm2} { 20 to 2000 inH2O} { 50 to 5000 mbar}

Wetted parts material *7



S# . . . . . .

[Body] [Capsule] [Vent plug]

SUSF316 *1 SUS316L *2 SUS316 *8

Process connection















0 . . . . . . . . . .

1 . .

2 .

3 . .

4 . .

5 . . . . . . . . . . .

without process connector (Rc 1/4 female on the cover flanges)

with Rc 1/4 female process connector

with Rc 1/2 female process connector

with 1/4 NPT female process connector *5

with 1/2 NPT female process connector *5

without process connector (1/4 NPT female on the cover flanges)

Bolts and nuts material





A . .

B . .

C . .

[Maximum working pressure]

SCM435 32 MPa {320 kgf/cm2}

SUS630 32 MPa {320 kgf/cm2}

SUH660 32 MPa {320 kgf/cm2}





Installation











-2 . . . . . . . . . .

-3 . . . . . . .

-6 . . . . . . . . .

-7 . . . . . . . . .

-8 . . . . . . . . .

-9 . . . . . . . . .

Vertical impulse piping type, right side high pressure, process connector upside*3

Vertical impulse piping type, right side high pressure, process connector downside*3

Vertical impulse piping type, left side high pressure, process connector upside*3

Vertical impulse piping type, left side high pressure, process connector downside*3

Horizontal impulse piping type, right side high pressure*4

Horizontal impulse piping type, left side high pressure*4



Electrical connection

0 . . .

2 . . . . . . . .

3 . . . . . . . . .

4 . . . . . . . . .

5 . . . . . . . . . .

7 · · · · · ·

8 · · · · · ·

9 · · · · ·

A · · · · ·

C · · · · ·

D · · · · · ·

G1/2 female, one electrical connection

1/2 NPT female, two electrical connections without blind plug

Pg 13.5 female, two electrical connections without blind plug

M20 female, two electrical connections without blind plug

G1/2 female, two electrical connections and a blind plug

1/2 NPT female, two electrical connections and a blind plug

Pg 13.5 female, two electrical connections and a blind plug

M20 female, two electrical connections and a blind plug

G1/2 female, two electrical connections and a SUS316 blind plug

1/2 NPT female, two electrical connections and a SUS316 blind plug

M20 female, two electrical connections and a SUS316 blind plug

Integral indicator







D . .

E . ..

N . .

Digital indicator

Digital indicator with the range setting switch*6

(None)

Mounting bracket

A . . . . .

B . .

J . .. .

C .

D . .

K . . . . .

N . .

SECC Carbon steel 2-inch pipe mounting (flat type)

SUS304 2-inch pipe mounting (flat type)

SUS316 2-inch pipe mounting (flat type)

SECC Carbon steel 2-inch pipe mounting (L type)

SUS304 2-inch pipe mounting (L type)

SUS316 2-inch pipe mounting (L type)

(None)

Optional codes

/□ Optional specification

The ‘6’ marks indicate the most typical selection for each specification. Example: EJA130A-DMS-92NA/□

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

*1: Indicates material of cover flange. Material of process connector is SCS14A(SUS316 equivalent).

*2: Diaphragm material is Hastelloy C-276 or ASTM N10276. Other capsule wetted parts materials are SUSF316L, SUS316L or ASTM grade 316L.

*3: If necessary, specify Mounting bracket code C, D or K.

*4: If necessary, specify Mounting bracket code A, B or J.

*5: Lower limit of ambient and process temperature is —15°C.

*6: Not applicable for Output signal code F and G.

*7: Users must consider the characteristics of selected wetted parts material and the influence of process fluids. The use of inappropriate materials can result in the leakage of corrosive process fluids and cause injury to personnel and/or damage to plant facilities. It is also possible that the diaphragm itself can be damaged and that material from the broken diaphragm and the fill fluid can contaminate the user's process fluids.

Be very careful with highly corrosive process fluids such as hydrochloric acid, sulfuric acid, hydrogen sulfide, sodium hypochlorite, and high-temperature steam (150°C [302°F] or above). Contact Yokogawa for detailed information of the wetted parts material.

*8: SUS316 or ASTM grade 316.
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