EJA118隔膜密封式差壓變送器
EJA118隔膜密封式差壓變送器
EJA118W、EJA118N和EJA118Y型隔膜密封式差壓變送器可用于測(cè)量液體、氣體或蒸汽的流量，以及液位、密度和壓力。
產(chǎn)品信息
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密封隔膜是用于防止過(guò)程介質(zhì)直接進(jìn)入差壓變送器的壓力傳感器組件中，它們是通過(guò)注滿流體的毛細(xì)管與變送器連接的。 |
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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
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**的性能和穩(wěn)定性 |
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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(guò)壓、溫度變化和靜壓影響降為*低，從而提供****的長(zhǎng)期穩(wěn)定性。 |
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小型輕量設(shè)計(jì) |
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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 |
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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。 |
規(guī)格
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EJA118W / EJA118N / EJA118Y |
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M膜盒 |
H膜盒 |
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測(cè)量范圍 |
-100~100kPa |
-500~500kPa |
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測(cè)量量程 |
2.5~100kPa |
25~500kPa |
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精度 |
±0.2% |
±0.2% |
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防護(hù)等級(jí) |
IP67，NEMA 4X，和JIS C0920防浸型 |
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防爆規(guī)格 |
FM，CENELEC ATEX，CSA，TIIS，IECEx |
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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 |
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電源 |
BRAIN和HART:10.5~42V DC (本安型: 10.5~30V DC) |
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環(huán)境溫度 |
-40~60℃ (-40~140℉) (普通型) |
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過(guò)程溫度 |
-50~300℃ (-58~572℉) |
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*大工作壓力 |
法蘭額定壓力 |
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安裝 |
變送器: 2-inch管安裝 |
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法蘭尺寸 |
平法蘭型: 3-inch(80mm)，2-inch(50mm)
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膜片材質(zhì) |
SUS316L，哈氏合金C-276，鉭材，鈦材 |
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法蘭材質(zhì) |
S25C，SUS304，SUS316 |
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外殼 |
鋁合金或SUS316不銹鋼(可選) |
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產(chǎn)品選型
產(chǎn)品系列 EJA118W [Flange size : 3-inch (80 mm)]
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產(chǎn)品系列 |
型號(hào)代碼 |
描述 |
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EJA118W |
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Diaphragm sealed 差壓變送器 (Flush diaphragm type) |
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輸出信號(hào) |
-D . . . . -E . . . . . . . . . . . . . . . . . . -F . . . . . . . . . . . . . . . . . . -G . . . . . . . . . . . . . . . . . . . |
4-20mA 信號(hào)輸出（BRAIN協(xié)議） 4 to 20 mA DC with digital communication (HART protocol) *1 Digital communication (FOUNDATION Fieldbus protocol) *6 Digital communication (PROFIBUS PA protocol) *10 |
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測(cè)量范圍（壓力）
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M . . . . . . . . . . . . . . . . H . . . . . . . . . . . . . . . . |
2.5 to 100 kPa {250 to 10000 mmH2O}{10 to 400 inH2O}{25 to 1000 mbar} 25 to 500 kPa {0.25 to 5 kgf/cm2}{100 to 2000 inH2O}{250 to 5000 mbar} |
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部件材料*8 |
S# . . . H# . . . T . . . . U . . . . . . . . . . . |
[Diaphragm] [Others] JIS SUS316L JIS SUS316L *11 哈氏合金 C-276 *9 哈氏合金 C-276 *9 鉭 鉭 Titanium Titanium |
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Process flange rating |
J1 . .. . . . . . J2 . . . J4 . . . A1 . . . . . . . . . . . . . A2 . . . . . . . . . . . . . . . A4 . . . . . . . . . . . . . . . . D2 . . . . . D4 . . . . . D5 . . . . |
JIS 10K JIS 20K JIS 40K ANSI Class 150 P1 . . . . . . . . . . JPI Class 150 ANSI Class 300 P2 . . . . . . . . . . JPI Class 300 ANSI Class 600 P4 . . . . . . . . . . JPI Class 600 DIN PN10/16 DIN PN25/40 DIN PN64 |
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Process flange 6 size / material |
D . . E . . . F . . . |
3-inch (80 mm) / JIS S25C 3-inch (80 mm) / JIS SUS304 *12 3-inch (80 mm) / JIS SUS316 *13 |
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Cover flange bolts material 6 |
A . . . B . |
JIS SCM435 JIS SUS630 |
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Fill fluid 6 |
-A *2. . . . . . . . . . . . . . . . . -B . . . . . . . . . . . . . . . . . . -C *3. . . . . . . . . . -D *4. . . . . . . . . . . -E . . . . . . . . . . . . . . . . |
[Process temp.] [Ambient temp.] For general use (silicone oil) -10 to 250 °C -10 to 60 °C For general use (silicone oil) -30 to 180 °C -15 to 60 °C For high temperature use (silicone oil) 10 to 300 °C 10 to 60 °C For oil-prohibited use (fluorinated oil) -20 to 120 °C -10 to 60 °C For low temperature use (ethylene glycol) -50 to 100 °C -40 to 60 °C |
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A . . |
Always A |
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Capillary length (m) |
□ □ *5. . . . . . . . . . |
Specify capillary length from 1 to 10m in □ □. (Example for 2 m : 02) |
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Installation |
-9 . . . . . . . |
Horizontal impulse piping type, left side high pressure |
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電氣連接 6 |
0 . . 2 . . . . . . . . 3 . . . . . . . 4 . . . . . . . 5 . . . . . . . . 7 . . . . . . . . 8 . . . . . . . . 9 . . . . . . . . A . . . . . . . . C . . . . . . . . D . . . . . . |
G1/2 female, one 電氣連接 1/2 NPT female, two 電氣連接s without blind plug Pg 13.5 female, two 電氣連接s without blind plug M20 female, two 電氣連接s without blind plug G1/2 female, two 電氣連接s and a blind plug 1/2 NPT female, two 電氣連接s and a blind plug Pg 13.5 female, two 電氣連接s and a blind plug M20 female, two 電氣連接s and a blind plug G1/2 female, two 電氣連接s and a SUS316 blind plug 1/2 NPT female, two 電氣連接s and a SUS316 blind plug M20 female, two 電氣連接s and a SUS316 blind plug |
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顯示面板
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D . . . E . . . N . .. . |
Digital indicator 與范圍設(shè)定開(kāi)關(guān)數(shù)字指示器 *7 (None) |
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安裝支架 6 |
A . . . . . . . . . B . . . . . . . . . J . . . . . . . . . N . . . |
JIS SECC 2-inch pipe mounting (flat type) JIS SUS304 2-inch pipe mounting (flat type) JIS SUS316 2-inch pipe mounting (flat type) (None) |
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Optional codes |
/□ 可選范圍 |
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The ‘6’ marks indicate the most typical selection for each specification. Example: EJA118W-DMSA1DA-AA02-92NA/□
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: Refer to GS 01C22T01-00E for HART Protocol version.
*2: In case of 部件材料code T (鉭), the process temperature limit is -10 to 200 °C.
*3: 部件材料code T (鉭) cannot be applied.
*4: Even in case where Fill fluid code D (fluorinated oil) is selected, if degrease cleansing treatment or both degrease cleansing and dehydrating treatment for the wetted parts is required, specify Optional code K1 or K5.
*5: In case of 部件材料code H (哈氏合金 C), T (鉭), and U (Titanium) or Fill fluid code C (for high temperature use), specify capillary length from 1 to 5 m.
*6: Refer to GS 01C22T02-00E for Fieldbus communication.
*7: Not applicable for 輸出信號(hào) code F and G.
*8: Users must consider the characteristics of selected 部件材料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.
