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一:保护下级的控制回路。
二:消弱环境噪声对测试电路的影响。
三:抑制公共接地、变频器、电磁阀及不明脉冲对设备的干扰;同时对下级设备具有限压、额流的功能是变送器、仪表、变频器、电磁阀PLC/DCS输入输出及通讯接口的忠实防护。标准系列导轨结构,易于安装,可有效的隔离:输入、输出和电源及大地之间的电位。能够克服变频器噪声及各种高低频脉动干扰。
8.现在市场有那么多品牌的隔离器,价格参差不齐,该怎么选择呢?
隔离器位于二个系统通道之间,所以选择隔离器要确定输入输出功能,同时要使隔离器输入输出模式(电压型、电流型、环路供电型等)适应前后端通道接口模式。此外尚有精度﹑功耗﹑噪音﹑绝缘强度﹑总线通讯功能等许多重要参数涉及产品性能,例如:噪音与精度有关、功耗热量与可靠性有关,这些需要使用者慎选。总之,适用、可靠、产品性价比是选择隔离器的主要原则。
Eaton Dynamatic 15-493-600
Divelbiss Bear BonesICM-IO-24 Expander,8 in / 8 out 7-32 VDC
SKF & Dormer Tools B112 No. 6 HSS MTS
FAG 23218-E1A-K-M
Thermo Electron Orion 900200 AgCl
Thermo Electron Orion 9416BN
Crydom CMA6090
Taylor Tool M60x2 Hand Tap
Leeson Electric Motor, C90T11FZ7C, FrameD90S, 1hp, 1100 RPM, 575V 3ph
Safematic SE2-2.362-QRMG-305211
TB Woods 3500-14M-55
A.O. Smith SQ1052 Motor, 1/2hp, 115/230V, 3450 rpm, Frame 48Y
Simplex 4100 Power Supply 637-163, 566-072
Foxboro P0961BC Control Processor CP40B,Rev 0K
Simplex 565-738
ABB Digital YPO 104A, YT204001-BF/1
Icon Research ICON9802
John Crane SafematicSTAF-2.6875-QRVG-1303051
Bussman JCL-A-12R Fuse, 230A, 2400V
Siemens Relcon R15-03-332, Keypad Display, R15A02A112B
ABB 57771682A Type MS86-C
ABB / Stromberg SAFT174 TBC, 58101346
ABB Stromberg DI86-32, 57275782, Allen-Bradley 3100-DI
Fischer Porter 10A3555A Flowmeter, 1.12USGPM H2O, 200 PSI
Greenfield M40x1.5 HS Tap GD 6, 6 Flute
SKF 23222 CCK/C3W33
Safe-T Seal STB2A-2.125-QRMG-1302827
FAG H3134.515
Fisher 12A9084X012
ABB SAFT 172 POW , 58094498
SKF 21313E Spherical
YB-017-101C Interface
ATC 305E007A20PX 60
Foxboro D0162VR Electronics
GE DTLAX50 Fuse, 50A
Foxboro X0146XN
Allen-Bradley 8642-Z764
Measurex 05354900 Rev B, SCC
Dynapar PM64S00
ABB RDO86-8B Relay Board, 57770732
Bussman JCL-A-9R Fuse, 200A, 2400V
Durametallic X-100 Cartridge Seal, BM 139915, 2.25"
Eaton Dynamatic E15-564-106
Allen-Bradley 810-A02A
Safe-T Seal STE2-070-QUMG for Ahlstrom MCA32-150 Pump, 1301681
FAG 22217E1K.C3
FAG 22310E1.C3
Garlock 5200 Packing, 1/2" (12.7mm), 41097-2032
Thermo Electron Orion 9202BN
Gates Poly Chain GT 14MGT-3304-37, 9274-5236
Lontalk Adapter 73000 SLTA/2, TP/FT-10
Pall HC8300FK39H
Printronix Mechanism Driver, 110239-001
Sun Microsystems Sunblade 150, 380-0905-02, 550 MHz
ABB YPD 103A, YT204001-AC/1
Allen-Bradley 1395-KP51, 155993 Communication 163209
Yokogawa YS80 SMLD-100A
Four Seasons 47979
Foxboro P0926HT
Flowserve Durametallic X-100 Seal, BM 136722, 2.125"
Safe-T Seal STE2-T-2.362-QRMG for APT Pump, 1300462
Flowserve Durametallic X-101 Seal, BM 163769, 2.375" Seal Diameter, 1.968" Shaft
Jordan Controls SM-1140 Rotary Actuator, 24VDC, 1143-3
ABB YM321001-AN Excitation Unit QH743
Kone Montgomery Controls I/O Interface P-16783, Rev 5
Littlefuse Startco SE-330-00-00
Entek 1440-TB-A Series B, XM-940
Flowserve Series 87 3.375" Double Tandem 87-27SA, 316SS
Northstar Dynapar HS56, H51024LJ24CL, 1760-421-125
Siemens Relcon R15C02-254-6
SKF 22217 EK/C3 Spherical
Garlock Packmaster 6 41606-2020 5/16"
Garlock Packmaster 6 41606-2040 5/8"
Garlock Paperpak 5000 41801-2032 1/2" (12.7mm)
Honeywell FF-SPE44TXE
ADI Dia-Vac R222-FT-AA1
ATC 3-0325A347A10PXTimer
Printronix 115922-001 Rev V, Astec AA11850
Lakewood Model 820 pH/ORP Receiver/Analyser, 820-IAMP-35
Flowserve Durametallic X-201 Seal, BM 134774, 60mm
Fusematic FPE 49E-6A2
Kone Montgomery P-15889, CT88752
Measurex F.O. Switchover Module 05342400
Thor 1700-1399-00086Rev F, 7.5-20 hp Power Board, ECN 50119317
Rosemount C1151GP5S22S1C6 Pressure Transmitter with 1199RFW21A11A71
Thor 1700-9999-00145 Rev B
Foxboro FBM214, P0922VT 8 Communication
Measurex TerminationPIDP II/III 05379100 Rev B, 09434700
Federal Pioneer DSP-MKII, 155-112B
John Crane SafematicSB2-3.6875-QREN-302056
Foxboro FCM10E, P0914YM 10 Mbps
Foxboro FBM201, P0914SQ
Allen-Bradley 509-DO
Garlock 127-AFP, 41127-2020
Garlock 127-AFP, 41127-2040