產(chǎn)品詳情介紹
費希爾Fisher 646 電氣轉(zhuǎn)換器
Fisher 646電氣轉(zhuǎn)換器采用轉(zhuǎn)換器模塊，該模塊可將4至20毫安輸入信號轉(zhuǎn)換為成比例的0.2至1.0barg（3.0至15psig）氣動輸出信號。小尺寸、抗振性、高輸出能力、低耗氣量
特性和優(yōu)勢
尺寸小—轉(zhuǎn)換器尺寸小、重量輕，便于安裝并提高空間利用率。
抗振性—該轉(zhuǎn)換器在安裝有標(biāo)準(zhǔn)閥門/執(zhí)行機(jī)構(gòu)的應(yīng)用中使用時，按照SAMA標(biāo)準(zhǔn)PMC
31.1條件3測試，其輸出偏移小于測試范圍的1%。
高輸出能力—轉(zhuǎn)換器的輸出量足以驅(qū)動閥門/執(zhí)行機(jī)構(gòu)組合，無需定位器或氣體流量放大器。
低耗氣量—轉(zhuǎn)換器的氣消耗量很低，從而降低了運營成本。
易于維護(hù)—轉(zhuǎn)換器模塊化設(shè)計便于現(xiàn)場更換，從而降低了維護(hù)成本。
的性能—準(zhǔn)確性、線性及滯后小化的頻率響應(yīng)遠(yuǎn)遠(yuǎn)超過大多數(shù)控制系統(tǒng)的要求。
8. Specifications
8.1 Input Signal
4 to 20 mA DC, constant current with 30 VDC maximum
compliancevoltage
8.2 Equivalent Circuit
The 646 equivalent circuit is a series circuit consisting of a
constant voltage drop (battery) of approximately 2.1 VDC and a
total resistance of 143 ohms. Input is shunted by three 6.8 V
zener diodes
8.3 Output Signal
0.2 to 1.0 bar (3 to 15 psig) direct acting only
8.4 Supply Pressure(1)
Recommended:1.4 bar (20 psig)
Minimum:1.4 bar (20 psig)
Maximum:3.4 bar (50 psig)
8.5 Maximum Steady-State Air Consumption(2)
Air consumption is proportional to output pressure. Maximum
consumption at 1.0 bar (15 psig)
output is 0.20 normal m3/hr (7.8 scfh).
8.6 Electrical Classification
Intrinsic Safety, Explosion Proof
9. Options
9.1 Output pressure gauge
9.2 Regulator, Gauge, 67CFR-224
Fisher 646電氣轉(zhuǎn)換器采用轉(zhuǎn)換器模塊，該模塊可將4至20毫安輸入信號轉(zhuǎn)換為成比例的0.2至1.0barg（3.0至15psig）氣動輸出信號。小尺寸、抗振性、高輸出能力、低耗氣量
特性和優(yōu)勢
尺寸小—轉(zhuǎn)換器尺寸小、重量輕，便于安裝并提高空間利用率。
抗振性—該轉(zhuǎn)換器在安裝有標(biāo)準(zhǔn)閥門/執(zhí)行機(jī)構(gòu)的應(yīng)用中使用時，按照SAMA標(biāo)準(zhǔn)PMC
31.1條件3測試，其輸出偏移小于測試范圍的1%。
高輸出能力—轉(zhuǎn)換器的輸出量足以驅(qū)動閥門/執(zhí)行機(jī)構(gòu)組合，無需定位器或氣體流量放大器。
低耗氣量—轉(zhuǎn)換器的氣消耗量很低，從而降低了運營成本。
易于維護(hù)—轉(zhuǎn)換器模塊化設(shè)計便于現(xiàn)場更換，從而降低了維護(hù)成本。
的性能—準(zhǔn)確性、線性及滯后小化的頻率響應(yīng)遠(yuǎn)遠(yuǎn)超過大多數(shù)控制系統(tǒng)的要求。
8. Specifications
8.1 Input Signal
4 to 20 mA DC, constant current with 30 VDC maximum
compliancevoltage
8.2 Equivalent Circuit
The 646 equivalent circuit is a series circuit consisting of a
constant voltage drop (battery) of approximately 2.1 VDC and a
total resistance of 143 ohms. Input is shunted by three 6.8 V
zener diodes
8.3 Output Signal
0.2 to 1.0 bar (3 to 15 psig) direct acting only
8.4 Supply Pressure(1)
Recommended:1.4 bar (20 psig)
Minimum:1.4 bar (20 psig)
Maximum:3.4 bar (50 psig)
8.5 Maximum Steady-State Air Consumption(2)
Air consumption is proportional to output pressure. Maximum
consumption at 1.0 bar (15 psig)
output is 0.20 normal m3/hr (7.8 scfh).
8.6 Electrical Classification
Intrinsic Safety, Explosion Proof
9. Options
9.1 Output pressure gauge
9.2 Regulator, Gauge, 67CFR-224
