EJA310A型高性能的絕對壓力變送器可用于測量液體、氣體或蒸汽的壓力,然后將其轉(zhuǎn)變成4~20mA DC的電流信號輸出。
EJA系列支持BRAIN、HART和FOUNDATION™現(xiàn)場總線或PROFIBUS PA通信協(xié)議。
產(chǎn)品選型一覽表
基本規(guī)格代碼:EJA310A-DMS5A-92NN
| 第1項(xiàng):輸出信號 |
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| 第2項(xiàng):測量量程(膜盒) |
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| 第3項(xiàng):接液件材質(zhì) |
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| 第4項(xiàng):過程接口 |
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| 第5項(xiàng):螺栓和螺母材質(zhì) |
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| 第6項(xiàng):安裝方式 |
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| 第7項(xiàng):電氣接口 |
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| 第8項(xiàng):內(nèi)藏顯示表 |
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| 第9項(xiàng):安裝托架 |
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附加功能
| 第1項(xiàng):隔爆型、本安型 |
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| 第2項(xiàng):隔爆密封接頭 |
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| 第3項(xiàng):涂漆:顏色變化或涂漆變化 |
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| 第4項(xiàng):避雷保護(hù)器 |
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| 第5項(xiàng):禁油處理或禁水、禁油處理 |
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| 第6項(xiàng):校正單位 |
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| 第7項(xiàng):SUS630螺母的密封處理 |
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| 第8項(xiàng):長排氣塞 |
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| 第9項(xiàng):高精度 |
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| 第10項(xiàng):130Pa abs{lmmHg abs} 校證證明 |
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| 第11項(xiàng):CPU異常時(shí)輸出設(shè)定為低側(cè) 或 NAMUK NE43 |
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| 第12項(xiàng):不銹鋼放大器外殼 |
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| 第13項(xiàng):快速應(yīng)答 |
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| 第14項(xiàng):PID/LM功能 |
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| 第15項(xiàng):組態(tài) |
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| 第16項(xiàng):鍍金膜片 |
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| 第17項(xiàng):容室法蘭選項(xiàng) |
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| 第18項(xiàng):不銹鋼位號牌 |
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| 第19項(xiàng):配件制造證明 |
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| 第20項(xiàng):壓力測試 漏壓測試證明 |
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- 卓越的性能和穩(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最低,從而提供無與倫比的長期穩(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。
- 現(xiàn)場總線通信能力
現(xiàn)場總線是雙向數(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)場總線模式,F(xiàn)OUNDATION™現(xiàn)場總線低壓模式和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。
技術(shù)參數(shù)
| EJA310A絕對壓力變送器 | ||||
| L膜盒 | M膜盒 | A膜盒 | ||
| 測量范圍 | 0~10kPa abs (0~2.95inHg abs) |
0~130kPa abs (0~38inHg abs) |
0~3MPa (0~430psia) |
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| 測量量程 | 0.67~10kPa (0.2~2.95inHg) |
1.3~130kPa (0.38~38inHg) |
0.03~3MPa (4.3~430psi) |
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| 精度 | ±0.2% | ±0.15% | ±0.15% | |
| 防護(hù)等級 | IP67,NEMA 4X,和JIS C0920防浸型 | |||
| 防爆規(guī)格 | FM,CENELEC ATEX,CSA,IECEx | |||
| 輸出信號 | 4~20mA DC或FOUNDATION™現(xiàn)場總線或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) |
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| 環(huán)境溫度 | -40~85℃ (-40~185℉) (普通型) -30~80℃ (-22~176℉) (內(nèi)藏指示器) |
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| 過程溫度 | M和A膜盒: -40~120℃ (-40~248℉) (普通型) L膜盒: -40~100℃ (-40~212℉) (普通型) |
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| 最大過壓 | 500kPa abs (72psia) |
500kPa abs (72psia) |
4.5MPa abs (645psia) |
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| 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) | |||
EJA310A-DLS4A-97DN,EJA310A-ELS4A-97DN,EJA310A-EMS4A-97DN,EJA310A-DAS4A-97DN
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EJA310A-EMS4A-97NA,EJA310A-DAS4A-97NA,EJA310A-DMS4A-97NN,EJA310A-EAS4A-97NN
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