產(chǎn)品簡(jiǎn)介
EJA120A差壓變送器高性能的微差壓變送器產(chǎn)品信息EJA120A型高性能的微差壓變送器用于測(cè)量微小差壓,然后將其轉(zhuǎn)變成4~20mA DC的電
公司簡(jiǎn)介
西安西弘自動(dòng)化設(shè)備有限公司,位于全國(guó)最大的儀表生產(chǎn)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(guān)、溫度傳感器、溫度變送器、溫度儀器儀表等產(chǎn)品的研發(fā)、生產(chǎn)、銷售的廠家。壓力、稱重、溫度等自動(dòng)化測(cè)量控制系統(tǒng)的設(shè)計(jì)、安裝、調(diào)試服務(wù)。產(chǎn)品涵蓋電力(火電、水電、核電)、石油、化工、紡織、冶金、機(jī)械、國(guó)防、科研、醫(yī)藥、食品等行業(yè)。產(chǎn)品已由國(guó)內(nèi)市場(chǎng)拓展至港臺(tái)及歐洲市場(chǎng),壓力傳感器、壓力變送器產(chǎn)品性能已逐步同國(guó)際市場(chǎng)接軌,完全可替換國(guó)外同類型產(chǎn)品。
公司的主要產(chǎn)品有:熱電偶,壓力傳感器,壓力變送器、液位傳感器、液位變送器、壓力儀器儀表;稱重傳感器、稱重變送器、稱重儀表;溫度傳感器、溫度變送器、溫度儀器儀表;壓力控制器、壓力開關(guān)、液位開關(guān);電子秤、工業(yè)衡器;汽車軸重傳感器、汽車軸重儀器儀表。配套產(chǎn)品有PLC可編程控制器、變頻器、及相關(guān)高低壓電器。
西安西弘設(shè)備自動(dòng)化有限公司本著“銳意進(jìn)取、追求卓越、用戶第一”的企業(yè)精神,依靠?jī)?yōu)秀的技術(shù)人才、先進(jìn)的生產(chǎn)設(shè)備、不斷更新技術(shù),及時(shí)有效地提供用戶所需的產(chǎn)品與服務(wù),創(chuàng)用戶價(jià)值、社會(huì)價(jià)值,從而提升企業(yè)價(jià)值,同時(shí)促進(jìn)社會(huì)文明的繁榮。
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產(chǎn)品說(shuō)明
EJA120A差壓變送器
高性能的微差壓變送器
產(chǎn)品信息
EJA120A型高性能的微差壓變送器用于測(cè)量微小差壓,然后將其轉(zhuǎn)變成4~20mA DC的電流信號(hào)輸出。
EJA系列支持BRAIN、HART和FOUNDATION™現(xiàn)場(chǎng)總線或PROFIBUS PA通信協(xié)議。
特性
-
的性能和穩(wěn)定性
EJA系列采用單晶硅諧振式傳感器技術(shù)。單晶硅對(duì)于壓力或溫度的變化不存在滯后現(xiàn)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(zhǎng)期穩(wěn)定性。
-
小型輕量設(shè)計(jì)
由于采用ASIC放大器設(shè)計(jì)使包裝變小,以及膜盒構(gòu)造和法蘭的小型化,這款機(jī)型的重量降到了原有機(jī)型的一半。ASIC設(shè)計(jì)不僅減少了零件數(shù)量,而且提高了放大器的可靠性。
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現(xiàn)場(chǎng)總線通信能力
現(xiàn)場(chǎng)總線是雙向數(shù)字通信系統(tǒng),是配置儀表控制系統(tǒng)的革新技術(shù),同時(shí)也是前景很好的更新?lián)Q代產(chǎn)品,用于替換現(xiàn)在現(xiàn)場(chǎng)儀表中廣泛使用的標(biāo)準(zhǔn)4~20mA模擬通信。
EJA系列提供兩種現(xiàn)場(chǎng)總線模式,F(xiàn)OUNDATION™現(xiàn)場(chǎng)總線低壓模式和PROFIBUS PA設(shè)備,以實(shí)現(xiàn)橫河電機(jī)和其他供應(yīng)商的協(xié)同工作。軟件方面,EJA系列采用兩個(gè)AI功能塊計(jì)算差壓和靜壓,從而實(shí)現(xiàn)靈活的儀表配置。
規(guī)格
EJA120A微差壓變送器
E膜盒
測(cè)量范圍
-1~1kPa(-4~4inH2O)
測(cè)量量程
0.1~1kPa(0.4~4inH2O)
精度
±0.2%
防護(hù)等級(jí)
IP67,NEMA 4X,和JIS C0920防浸型
防爆規(guī)格
FM,CENELEC ATEX,CSA,IECEx
輸出信號(hào)
4~20mA DC或FOUNDATION™現(xiàn)場(chǎng)總線或PROFIBUS PA兩線制數(shù)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(huán)境溫度
-25~80℃(-13~176℉)
過程溫度
-25~80℃(-13~176℉)
zui大工作壓力
50kPa (7.25psi)
安裝
2-inch管安裝
接液部件材質(zhì)
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)
型號(hào)選型
Model
Suffix Codes
Description
EJA120A
Differential pressure transmitter (for draft application)
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)
E . .
0.1 to 1 kPa {10 to 100 mmH2O} {0.4 to 4 inH2O} {1 to 10 mbar}
Wetted parts material *6
S# . . . .
[Body] [Capsule] [Vent plug]
SCS14A *1 SUS316L *2 SUS316 *7
Process connections
0 . . . . . . . . . . . . .
1 . . . . .
2 . . . .
3 . . . .
4 . . . .
5 . . . . . . . . . . . . .
without process connector (Rc1/4 female on the cover flanges)
with Rc1/4 female process connector
with Rc1/2 female process connector
with 1/4 NPT female process connector
with 1/2 NPT female process connector
without process connector (1/4 NPT female on the cover flanges)
Bolts and nuts material
A .. . . .
B .. . . .
C . . . . .
[Maximum working pressure]
SCM435 50 kPa {0.5 kgf/cm2}
SUS630 50 kPa {0.5 kgf/cm2}
SUH660 50 kPa {0.5 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 *5
(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: EJA120A-DES-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 cover flange and process connector material.
*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.
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