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EMERSON VE3006, 12P1509X092
EMERSON VE3006, 12P1509X092
EMERSON VE3006, 12P1509X092
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2 防止干扰和设备损坏的一般方法
(1)系统电源
系统电源应该有冗余,各路配电模件应该有独立的截峰二极管(过压)、自动断路器(过流)等保护。供电系统采用隔离变压器,使DCS系统接地点和动力强电系统接地点独立开来,并采用电源低通滤波器来电网上的高次谐波。为避免波动,DCS供电要尽量来自负荷变化小的电网上。要严格防止强电通过端子排线路串入DC24V供电回路,并定期检查机柜电源系统是否正常、供电电压是否在规定范围内、系统接地是否可靠、良好、线路绝缘是否合格,停、送电按要求程序执行。通过以上工作,这方面的风险就可以有效避免。
(2)电缆敷设
强电电缆与弱电电缆应分开敷设,电源电压220V以上、电流10A以下的电源电缆和信号电缆之间的距离要大于150mm,电源电压220V以上、电流10A以上的电源电缆与信号电缆之间的距离应该大于600mm。若只能放在同一桥架内,之间要装隔离板。热工电缆不可放在高压电场内。对于电容式设备的二次电缆,比如电容式电压互感器的二次电缆,施工要与地靠近平直。在发电机等附近有较强辐射处,要注意应该有铜皮或铝箔等做成密封箱,来起到屏蔽作用。信号回路要有的参考地,屏蔽电缆遇到有可能产生传导干扰的场合,也要在就地或者控制室接地,防止形成“地环路”。
Festo CPV14-GE-FB-4 18260 V407 PN000556 CPV14-VI-0024293071-000220-00018210135P
Phoenix Contact TMC1F11005,0A, 2225188-006, 110G
Vishay 3.3uH 20%, IHLP-5050EZ-01, IHLP5050EZER3RM01, SHIPSAMEDAYF30
980x, BROADCOM RF Mosfet pHEMT FET 2V 10mA 2GHz 16dB, ATF-38143-BLKG, AA13
VAT Angle Valve HV KF-40, 26332-KA41-1002, 26332-KA41-1002/1133
Swagelok braid hose 1/2" x 48", SS-FJ8TA8TA8-48, SSFJ8TA8TA848
Watlow EZ-Zone ST Integrated Control Loop, STCL-F1AH-CAAA
Watlow EZ-Zone ST Integrated Control Loop, STCL-F1AG-CAAA
Festo AXIAL KIT, 550937, EAMM-A-F40-100A, SHIPSAMEDAY 115Q3
Tokyo Electron MK2 Trap Terminator 3M81-019551-18, 3M08-019551-11, 1168Z4
Watlow EZ-Zone ST Integrated Control Loop, STCL-F1AS-CAAA
NUPRO Bellows Sealed Valve ” FVCR, SS-BNV51-20, SS-BNV51-2O, 130Z23
Watlow EZ-Zone ST Integrated Control Loop, STKL-F3AC-BAAA, SHIPSAMEDAY1556JA
ABB circuit breaker Tmax T5N 400, 300A, E93565, 3 Pole, IEC60947-2, 123A2
Fulcrum Focalpoint 24 Port 10gE Switch, FM-2224-F1433-C, 180106KKA3, F42
SMC CDBX2N15-100B, CDBX2N15-100, Ship Same Day 1650Q
Motorola Transistor MJ10052, Shipsameday 1637M
Bellows Vaccum Flexible Hose Medium Wall NW40 x 44" long, SS, KF-40FH-44,
Phoenix Contact 2754985, 2754927, IB sT 24 DI32/2, Shipsameday Free 1179D
Phoenix Contact 2753517, IBS SAB 24 DI 8/8, Shipsameday 1179F
MKS Alta Mass Flow Controller, 1/4" VCR, 5000 SCCM, GAS N2, 1480A-27154 "E"
MKS Alta Mass Flow Controller, 1/4" VCR, 500 SCCM, GAS N2, 1480A-26717 "F"
Piezosystem Jena Preloaded Piezo Actuator P-159-80, P15980, SHIPSAMEDAY M17
SEW EURODRIVE Gear Motor SA37DR63M4,
Linear IC REG LDO 3.3V 1.5A 8SOIC, LT1963AES8-3.3 SHIPSAMEDAY AA17
LOGITEK RELAY 28VDC, 11OSBO, 100S3B0, RWK8851, SHIPSAMEDAY 1551WB
Pressure Transducer 50 PSIA, 6V, PDCR330, SHIPSAMEDAY 1551WC
Atmel AT25320AN-10SU-2.7, EEPROM 32K(4K X 8) SPI 1M CYCLES- 10M V122
SCM MXQ12-30B-M9NL, MXQ1230BM9NL, MXQ12-30, Shipsameday 1177V
SMC MXQ12-30B-M9NL, D-M9N, MXq12-30, Shipsameday 1177A5
COMMUNICATION COIL INDUCTOR RF 2.2UH HENRYS, E280-1, SHIPSAMEDAY1472V
Peter Paul Solenoid Valve EH21Z0016ACCMG24/DC, Shipsameday 1605G3
SMC CDPXWL20-100, CDPXWL20100, Shipsameday 1178C
MKS Type 653 Throttle Valve, 653B-13064, Shipsameday Rack F F60
UNIT MASS FLOW CONTROLLER, UFC-8100, GAS NH3, 100 SCCM
TE CONNECTIVITY AMP 202237-2 CONTACT SOCKET SOLDER, 1474B
ABB Contactor AF95B-30RT, AF95RT110RT 1SFL437062R6911, 48-130V, 3P
SIEMENS DISCONNECT SWITCH & 3 Limitron JKS-100, CFSJ100A
SAMTEC HEADER, 2.0MM, RIGHT ANGLE, 2X5 POS, TMM-105-01-L-D-RA 169A14
Spectronics Electronic Ballast SYS0500201 SYS05002-01, A5-002536, AS2005 137F39
MKS Flow Control Valve, 10,000 SCCM, 1/4" VCR, 0148A-10000R, SHIPSAMEDAY1547C8
MKS Flow Control Valve, 10,000 SCCM, 1/4" VCR, 0248A-1000RV, SP009-86, 1547C9
SIEMENS 2TA4P8500 BREAKER ND 2 ALUMINUM LUGS 250-500KCMIL, Shipsameday 1166A
SMC CYLINDER AIR SLIDE TABLE, MXQ16-100R, MXQ1D05, ShipSameDay1618AC
SMC CYLINDER AIR SLIDE TABLE, MXQ12L-100CT, ShipSameDay1618AD
Omron Fiber Optic Sensors AREA SENSING E32-D36P1, SHIPSAMEDAY131M3
ABB SPECTRUM EH300, EH 300, 3P, SK 826-401, 350A, Coil 170V, Rack D D37
Nanaboshi 4 Pins, RM12BRB-4S, Ship Same Day 1551J