EJA430A压力变送器

产品名称：EJA430A压力变送器
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详细介绍

EJA430A压力变送器

EJA430A型高性能的压力变送器可用于测量液体、气体或蒸汽的压力。

产品信息

EJA430A型高性能的压力变送器可用于测量液体、气体或蒸汽的压力，并将其转变成4～20mA DC的电流信号输出。

EJA系列支持BRAIN、HART和FOUNDATION™现场总线或PROFIBUS PA通信协议。

特性

-	卓越的性能和稳定性
	EJA系列采用单晶硅谐振式传感器技术。单晶硅对于压力或温度的变化不存在滞后现象，是非常理想的材料。单晶硅谐振式传感器将过压、温度变化和静压影响降为最低，从而提供无与伦比的长期稳定性。

-	小型轻量设计
	由于采用ASIC放大器设计使包装变小，以及膜盒构造和法兰的小型化，这款机型的重量降到了原有机型的一半。ASIC设计不仅减少了零件数量，而且提高了放大器的可靠性。

-	现场总线通信能力
	现场总线是双向数字通信系统，是配置仪表控制系统的革新技术，同时也是前景很好的更新换代产品，用于替换现在现场仪表中广泛使用的标准4~20mA模拟通信。 EJA系列提供两种现场总线模式，FOUNDATION™现场总线低压模式和PROFIBUS PA设备，以实现横河电机和其他供应商的协同工作。软件方面，EJA系列采用两个AI功能块计算差压和静压，从而实现灵活的仪表配置。

规格

		EJA430A压力变送器
		A膜盒	B膜盒
测量范围		-0.1~3MPa (-15~430psi)	-0.1~14MPa (-15~2000psi)
测量量程		0.03~3MPa (4.3~430psi)	0.14~14MPa (20~2000psi)
精度		±0.065%	±0.065%
防护等级		IP67，NEMA 4X，和JIS C0920防浸型
防爆规格		FM，CENELEC ATEX，CSA，IECEx
输出信号		4~20mA DC或FOUNDATION™现场总线或PROFIBUS PA两线制数字通信
电源		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)
环境温度		-40~85℃ (-40~185℉) (普通型) -30~80℃ (-22~176℉) (内藏指示器)
过程温度		-40~120℃ (-40~248℉) (普通型)
最大过压		4.5MPa (645psig)	21MPa (3000psig)
安装		2-inch管安装
接液部件材质	膜盒	SUS316L(膜片: 哈氏合金C-276)，哈氏合金C-276，钽材，蒙乃尔
	容室法兰	SUS316，哈氏合金C-276，蒙乃尔
外壳		铝合金或SUS316不锈钢(可选)

产品选型

产品系列	型号代码									描述
EJA430A	. . . .									Gauge pressure transmitter
输出信号	-D . . . -E . . -F . . . . . . . . . . . . . -G . . . . .									4-20mA 信号输出（BRAIN协议） 4-20mA 信号输出(HART协议),参照GS 01C22T01-00E Digital communication (FOUNDATION Fieldbus protocol, refer to GS 01C22T02-00E) (PROFIBUS PA协议，参照GS 01C22T03-00E)
测量范围（压力）		A . . . . . . . . . . . B . . . . . . . . . . . .								0.03 to 3 MPa {0.3 to 30 kgf/cm2} {4.3 to 430 psi} {0.3 to 30 bar} 0.14 to 14 MPa {1.4 to 140 kgf/cm2} {20 to 2000 psi} {1.4 to 140 bar}
Wetted parts material*9			S# . . H# . . . M# . . . . T . . A# . . D . . . . . . . . . . . B# . .							[壳体]1 [Capsule] [孔塞] SCS14A SUS316L 2 SUS316 11 SCS14A 哈氏合金 C-276 310 SUS316 11 SCS14A Monel3 SUS316 11 SCS14A 钽 3 SUS316 11 哈氏合金 C-276 equivalent4 哈氏合金 C-276 310 哈氏合金 C-27610 哈氏合金 C-276 equivalent4 钽 3 哈氏合金 C-27610 Monel equivalent5 Monel*3 Monel
Process connection				0 . . . 1 . . 2 . . 3 . . . 4 . . 5 . . .						无过程连接 (Rc1/4 female on the cover flanges) with Rc1/4 电气过程连接 with Rc1/2 电气过程连接 with 1/4 NPT 电气过程连接 with 1/2 NPT 电气过程连接无过程连接 (1/4 NPT female on the cover flanges)
螺栓和螺母的材料l					A . . . . B . . . . C . . . . . . .					[Maximum working pressure] (A capsule) (B capsule) SCM435 3 MPa {30 kgf/cm2} 14 MPa {140 kgf/cm2} SUS630 3 MPa {30 kgf/cm2} 14 MPa {140 kgf/cm2} SUH660 3 MPa {30 kgf/cm2} 14 MPa {140 kgf/cm2}
Installation						-2 . . . . . . . . -3 . . . . . . . . . -6 . . . . . . . . . -7 . . . . . . . . . -8 . . . . . . . . . -9 . . . . . . . . .				Vertical impulse piping type, right side high pressure, process connector upside6 Vertical impulse piping type, right side high pressure, process connector downside6 Vertical impulse piping type, left side high pressure, process connector upside6 Vertical impulse piping type, left side high pressure, process connector downside6 Horizontal impulse piping type, right side high pressure7 Horizontal impulse piping type, left side high pressure7
电气连接							0 . . 2 . . 3 . . 4 . . 5 . . . 7 . . . 8 . . . 9 . . A . . . C . . . D . . .. . . . .			G1/2 female, one 电气连接 1/2 NPT female, two 电气连接s without blind plug Pg 13.5 female, two 电气连接s without blind plug M20 female, two 电气连接s without blind plug G1/2 female, two 电气连接s and a blind plug 1/2 NPT female, two 电气连接s and a blind plug Pg 13.5 female, two 电气连接s and a blind plug M20 female, two 电气连接s and a blind plug G1/2 female, two 电气连接s and a SUS316 blind plug 1/2 NPT female, two 电气连接s and a SUS316 blind plug M20 female, two 电气连接s and a SUS316 blind plug
显示面板								D . . E . N . . . . .		Digital indicator 与范围设定开关数字指示器*8 (None)
安装支架									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										/□ 可选范围

The ‘6’ marks indicate the most typical selection for each specification. Example: EJA430A-DAS5A-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 high pressure side cover flange and process connector material. Material of low pressure side cover flange (open to atmosphere) is SCS14A.

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

*3: Indicates diaphragm and other capsule wetted parts material.

*4: Indicated material is equivalent to ASTM CW-12MW.

*5: Indicated material is equivalent to ASTM M35-2.

*6: If necessary, specify 安装支架code C, D or K.

*7: If necessary, specify 安装支架code A, B or J.

*8: Not applicable for 输出信号 code F and G.

*9: 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.

*10: 哈氏合金 C-276 or ASTM N10276.

*11: SUS316 or ASTM grade 316.