VMIC VMIPMC-5565

VMIC VMIPMC-5565

經(jīng)過這些年來的不斷應(yīng)用，DCS系統(tǒng)在行業(yè)發(fā)展的一些局限性逐步體現(xiàn)出來，DCS存在的問題：

　　(1)1對(duì)1結(jié)構(gòu)。1臺(tái)儀表，1對(duì)傳輸線，單向傳輸1個(gè)信號(hào)。這種結(jié)構(gòu)造成接線龐雜、工程周期長、安裝費(fèi)用高、維護(hù)困難。

　　(2)可靠性差。模擬信號(hào)傳輸不僅精確度低，且易受干擾。為此采用各種措施提高抗干擾性和傳輸精確度，其結(jié)果是增加了成本。

　　(3)失控狀態(tài)。操作員在控制室既不了解現(xiàn)場(chǎng)模擬儀表的工作狀況，也不能對(duì)其進(jìn)行參數(shù)調(diào)整，更不能預(yù)測(cè)事故，導(dǎo)致操作員對(duì)其處于失控狀態(tài)。因操作員不能及時(shí)發(fā)現(xiàn)現(xiàn)場(chǎng)儀表故障，而發(fā)生事故已屢見不鮮。

　　(4)互操作性差。盡管模擬儀表已統(tǒng)一4～20mA信號(hào)標(biāo)準(zhǔn)，可大部分技術(shù)參數(shù)仍由制造商自定，致使不同品牌儀表無法互換。因此導(dǎo)致用戶依賴制造廠，無法使用性能價(jià)格比*的配套儀表，甚至出現(xiàn)個(gè)別制造商壟斷市場(chǎng)的局面。

RIETER 1866 0760 PHOTOEYE SENSOR/SWITCH 18660760   NEW CONDITION IN PACKAGE

BUSSMANN FWP-250A SEMICONDUCTOR FUSE 250A 700V AC/DC NEW CONDITION IN BOX

BUSSMANN FWH-450A SEMICONDUCTOR FUSE 450A 500V AC/DC NEW CONDITION IN BOX

OMRON H3M TIMER PLUG-IN MODULE 1-10 SEC. - 1-10 MIN. NEW CONDITION IN BOX

EMECANIQUE 9838 EB1 AUXILIARY CONTACT 600V NOS CONDITION IN BOX

NAMCO EB200 30843 PULL TYPE SOLENOID COIL 110V 1/2" STROKE  NEW CONDITION IN BOX

STRUTHERS-DUNN 237XBXP-020-120 TIME DELAY RELAY MODULE NEW CONDITION IN BOX

MB MANUFACTURING KFC4 45 2 FLANGE TYPE PILLOW BLOCK BEARING 2" BORE  NEW IN BOX

NTN 6322 C3 DEEP GROOVE BALL BEARING 110MM X 240MM X 50MM NEW CONDITION IN BOX

NTN 6322-ZZ SHIELDED ROLLER BEARING 110MM X 240MM X 50MM NEW CONDITION IN BOX

SKF 6309/C3 DEEP GROOVE BALL BEARING 45 X 100 X 25MM NEW SEALED CONDITION IN BOX

SKF 6208/C3 DEEP GROOVE BALL BEARING NEW SEALED CONDITION IN BOX

GLENAIR 370DA002B2016A-722 BACKSHELL 90 CONNECTOR NEW CONDITION IN PACKAGE

AMPHENOL SINE ZPLML-2016-12S CONNECTOR NEW CONDITION IN PACKAGE

NUMATICS L11PA452O000000 PNEUMATIC VALVE NEW CONDITION IN PACKAGE

WAIRCOM UKC4/16/B PNEUMATIC VALVE UKC416B NEW CONDITION IN BOX

NUMATICS L11PP752O000000 PNEUMATIC VALVE NEW CONDITION IN PACKAGE

NORGREN SXP9573-180-00 PNEUMATIC SPRING RETURN PILOT VALVE NEW IN PACKAGE

AUTOMATIC VALVE 407B43S39A-AA5 PNEUMATIC SOLENOID VALVE 120V NEW NO BOX

PARKER SCHRADER BELLOWS K342006 FLOW CONTROL KIT NEW CONDITION IN PACKAGE

CUSTOM CONTROL SENSORS 608GC1 PRESSURE SWITCH/SENSOR 4500PSI NEW IN BOX 

AUTOMATIC VALVE B6692-130-130 PNEUMATIC DUAL REGULATOR VALVE NEW IN PACKAGE

AUTOMATIC VALVE 407B43S3S3-DB7 PNEUMATIC SOLENOID VALVE 24V NEW NO BOX

MAC VALVES 55B-12-PI-111JM PNEUMATIC SOLENOID VALVE 120V  NEW IN PACKAGE

NUMATICS I12BA400MP14X61 PNEUMATIC SOLENOID VALVE 24V NEW IN PACKAGE

FANUC VE-0409-002 VIDEO BOARD  NEW CONDITION / NO BOX

STEARNS 4240101 REPLACEMENT COIL 115V 60HZ NEW CONDITION NO BOX

NUMATICS 33JPR400O000000 SPRING RETURN PNEUMATIC VALVE NEW IN PACKAGE

TURCK BC5-S18-AP4X PROXIMITY SENSOR ID# 25030 0.5-5MM 10-65 VDC NEW IN PACKAGE

BURNDY UTG62028PN CONNECTOR FOR TRIM-TRIO CONTACTS NEW IN PACKAGE

NUMATICS L12BB552O000030 PNEUMATIC SOLENOID VALVE 120V  NEW CONDITION 

BUSSMANN FWH-150A 150A 500VAC/DC SEMICONDUCTOR FUSE NEW NO BOX

SKINNER VALVE PARKER V57724F24 REPLACEMENT COIL NEW CONDITION IN BOX

SMC VQZ2221-5YZ-N7 PNEUMATIC SOLENOID VALVE 24VDC NEW IN PACKAGE

NUMATICS L11BB752B000061 PNEUMATIC SOLENOID VALVE 24VDC NEW CONDITION NO BOX

NUMATICS L01SS4872000030 PNEUMATIC SOLENOID VALVE 120V  NEW CONDITION IN PACKAGE

TIMKEN 065000800 TAPERED ROLLER BEARING ASSEMBLY 1-3/8" BORE NEW IN PACKAGE

BUSSMANN DMM-B-11 FAST ACTING FUSES 11A 1000VAC/DC  (SET OF 3) NEW NO BOX

SKF 6008-2RS1 SINGLE ROW BALL BEARING 40 X 68 X 15MM  NEW CONDITION IN BOX

FAFNIR 306PP SEALED BALL BEARING 30MM X 72MM X 19MM  NEW CONDITION IN BOX

SKF 6203-2ZJEM SHIELDED BALL BEARING 17MM X 40MM X 12MM NEW CONDITION IN BOX

SKF 6001 2RSJEM SEALED BALL BEARING 12MM X 28MM X 8MM  NEW CONDITION IN BOX

SKF 629 2RSJEM SEALED BALL BEARING 9MM X 26MM X 8MM NEW CONDITION IN BOX

BANNER SM2A91RSRQD VALU-BEAM RECEIVER 3M 24-250VAC 26650 NEW IN BOX

KOP-FLEX SIZE 2F FULL FLEX COUPLING HUB ROUGH BORE NEW CONDITION IN BOX

KOP-FLEX SIZE 2-1/2 FULL FLEX COUPLING HUB ROUGH BORE NEW CONDITION IN BOX

KOP-FLEX SIZE 2-1/2 FULL FLEX COUPLING HUB 2.125 BORE NEW CONDITION IN BOX

KOP-FLEX SIZE 2-1/2 FULL FLEX COUPLING HUB 2.625 BORE NEW CONDITION IN BOX

KOP-FLEX SIZE 2.0 FULL FLEX COUPLING HUB 2.124+.0005 BORE NEW CONDITION IN BOX

KOP-FLEX SIZE 2.0 FULL FLEX COUPLING HUB 1.374+.0005 BORE NEW CONDITION IN BOX

MAC VALVES 82A-BC-CAA-TM-DDAP-1DA PNEUMATIC SOLENOID VALVE 24V NEW NO BOX

BOSCH 0 820 028 931 PNEUMATIC SOLENOID VALVE NEW CONDITION / NO BOX

PARKER D1BW20BVY-21 HYDRAULIC SOLENOID CONTROL VALVE NEW CONDITION NO BOX 

NUMATICS 11SAD449O000030 PNEUMATIC SOLENOID VALVE 115/120V  NEW CONDITION 

NUMATICS 11SAD4490 PNEUMATIC SOLENOID VALVE 115/120V  NEW CONDITION 

NUMATICS 031ss5152000030 PNEUMATIC SOLENOID VALVE NEW CONDITION 

BUSSMANN LPS-RK-225SP LOW-PEAK TIME DELAY FUSE 225A 600V NEW CONDITION NO BOX

EMERSON 52414 DC REGULATOR BOARD ASSY. 02-777821-00 NEW SEALED CONDITION IN BOX

FANUC A16B-1310-052 CONTROL MODULE EXCELLENT USED CONDITION

NUMATICS 11DSA449O00030 PNEUMATIC SOLENOID VALVE NEW CONDITION 

NUMATICS 11DSA449000030 PNEUMATIC SOLENOID VALVE NEW CONDITION NO BOX

EFECTOR KG-2008-FRKG/KG5016 PROXIMITY SENSOR 2.5-8MM 10-55VDC NEW IN BOX

RAM METER 2SFT-500 CURRENT TRANSFORMER 50:5 RF 1.0  600V NEW NO BOX

SEALMASTER 2-012T BEARING INSERT 3/4"  NEW CONDITION IN BOX

HUB CITY 1004-02902 TAKE UP PILLOW BLOCK BEARING TU220X5/8 NEW CONDITION IN BOX

RAM METER 2SFT-600 CURRENT TRANSFORMER 60:5 RF 1.0  600V NEW NO BOX

ELAN EF 220F.2 CONTACT BLOCK 10A 300 VAC NEW CONDITION / NO BOX 

INSTRUMENT TRANSFORMERS 6SHT-251 CURRENT TRANSFORMER 250:5 A 600V NEW IN BOX

E.I.L INSTRUMENTS 6SHT-151 CURRENT TRANSFORMER 150:5 A 600V NEW IN BOX

WEIDMULLER 910671 RSO MODULE 8 CHANNEL 91067.1/67  NEW CONDITION IN BOX

SQUARE D 9080 CA-14 TERMINAL BLOCK 14 CIRCUIT 600V NEW CONDITION IN BOX

SPRECHER+SCHUH CA3-12C-10 CONTACTOR / STARTER 3 POLE 24 VDC NEW CONDITION NO BOX

EMECANIQUE LP1-D1210-BD CONTACTOR / STARTER 12A 3 POLE 24VDC NEW NO BOX

ELAN EF 220.1 CONTACT BLOCK 10A 300 VAC NEW CONDITION / NO BOX 

BUSSMANN FWH-325A SEMICONDUCTOR FUSE 325A 500V AC/DC NEW CONDITION IN BOX

BUSSMANN FNA-6/10 FUSETRON FUSES 6/10A 250V  NEW BOX OF 10

BUSSMANN FWH-150B FUSE 150A 500V NEW CONDITION IN BOX

SHAWMUT AMP-TRAP A60X1500-128 FUSE 1500 AMPS 600V TYPE 128 NEW CONDITION NO BOX

WESTINGHOUSE ELECTRIC 800NBP20 CURRENT LIMITER FUSE 300-800A NEW NO BOX 

NUMATICS 11PAD444O000000 PNEUMATIC VALVE NEW CONDITION IN PACKAGE

NUMATICS NUMATROL TM0-2101 PNEUMATIC TIMER VALVE WITH BASE  NEW IN PACKAGE

NUMATICS NUMATROL TM0-2105 PNEUMATIC TIMER / ACTUATOR VALVE NEW IN PACKAGE

TURCK BI10F-Q34-ADZ30X2-B3131/S34 PROXIMITY SENSOR # 42170 10MM NEW NO BOX

TURCK BI10T-Q34-ADZ30X2-B3131/S34 PROXIMITY SENSOR # 42171 10MM NEW NO BOX

EMECANIQUE XCK J1305707 SAFETY INTERLOCK LIMIT SWITCH NEW CONDITION IN BOX

OMEGA ENGINEERING PSS-D12A DUAL POWER SUPPLY 115 / 12V NEW CONDITION NO BOX 

ALLEN BRADLEY 871Z-DW5NP18-D4 PROXIMITY SENSOR 5MM 10-30 VDC NEW IN PACKAGE

SKF 6214-2RS1 SEALED BOTH SIDES ROLLER BEARING 2-3/4 ID  NEW CONDITION IN BOX

GENERAL BEARING 6207 ZZ E ROLLER BEARING 1.375 ID 2.834 OD .668 WIDTH NEW IN BOX

BARDEN 102H PRECISION ROLLER BALL BEARING NEW SEALED CONDITION IN BOX

FAFNIR 3MM9104WI DUM SUPER PRECISION ANGULAR CONTACT BEARINGS NEW MATCHED SET

JOHN CRANE MULTIPLE SPRING WEDGE SEAL TYPE 9   2" SHAFT NEW CONDITION / NO BOX

AUTOMATIC VALVE 407D87S39DS3AA4 PNEUMATIC SOLENOID VALVE 120V 150PSI  NEW NO BOX

SNR 5208ZZ SHIELDED ROLLER BEARING   NEW CONDITION NO BOX

INA 6306 RS SEALED ROLLER BEARING 1.179 ID, 2.834 OD, .747 W  NEW NO BOX 

BARDEN ZXL067H ROLLER BALL BEARING 1.249 ID, 2.437 OD, .625 W  NEW NO BOX

BARDEN 2210H SINGLE ROW BALL BEARING NEW PART # 210HE NEW CONDITION / NO BOX

SKF  FA 11243W DEEP GROOVE BALL ROLLER BEARING NEW CONDITION / NO BOX

FAFNIR 3MM9110WICRDUL SUPER PRECISION ANGULAR CONTACT BEARINGS (MATCHED SET) NNB

INA LR 5308 NPPU TRACK ROLLER BEARING  NEW CONDITION / NO BOX

TIMKEN 72188C 3 TAPERED ROLLER BEARING CONE 1-7/8" BORE NEW CONDITION NO BOX

TIMKEN 476863 TAPERED ROLLER BEARING CONE 3-1/4" BORE NEW CONDITION NO BOX

HARTING R15-STI-C ROUND MALE PIN CONNECTORS  NEW PACKAGE OF 100PCS

ASCO  302-288 SOLENOID VALVE REBUILD KIT  NEW CONDITION IN PACKAGE

INTERNATIONAL RECTIFIER 12-67915020  8752  DIODE NEW CONDITION / NO BOX

INTERNATIONAL RECTIFIER 15-679130-20 DIODE NEW CONDITION / NO BOX

GOULD SHAWMUT A70P10-1 AMPTRAP FUSES 10A 700 VAC TYPE 1 (SET OF 5) NEW NO BOX

RELIANCE BRUSH FUSE  ECNR 40 TIME DELAY FUSES 40A 250VAC CLASS RK5 (SET OF 7)

REXROTH MECMAN 438-150000-1 PNEUMATIC SILENCER 1" NPT NEW CONDITION IN PACKAGE

INGERSOLL RAND 39403290 AUTO CONTROL RELAY NEW CONDITION IN BOX

HONEYWELL 106615A SAFEGAURD PLUG-IN RELAY FOR R4075A  NEW CONDITION IN BOX

JOHNSON CONTROLS R-3030-1 REVERSING RELAY  EXCELLENT USED CONDITION

SCHNEIDER ELECTRIC TBXCBS010 TBX7 CONNECTOR EXTENSION KIT  NEW IN BOX

NUMATICS I23SS515K000030 PNEUMATIC SOLENOID VALVE  120V 150 PSI NEW CONDITION

SICK FGSS 900-11 SAFETY LIGHT CURTAIN SENDER UNIT  14-FGS  NEW CONDITION IN BOX

SICK FGSE 900-111 SAFETY LIGHT CURTAIN RECEIVER  14-FGS  NEW CONDITION IN BOX

TOX PRESSOTECHNIK S 08.30.50.06 D.US PNEUMATIC-HYDRAULIC POWERPACKAGE UNIT  NNB

TOX PRESSOTECHNIK ES 100.100.39.39 PNEUMATIC-HYDRAULIC INTENSIFIER UNIT  NNB

AMI MUCNFL207W  THERMOPLASTIC FLANGE TYPE PILLOW BLOCK BEARING 1-3/8  NIB

AMI MUCPPL207W CORROSION RESISTANT THERMOPLASTIC PILLOW BLOCK BEARING 1-3/8  NIB

DODGE WSTU-LT7-208USE WS-502FR TAKE-UP BEARING 2-1/2" BORE  033886  NEW NO BOX

AMI MUCPPL205-16B CORROSION RESISTANT THERMOPLASTIC PILLOW BLOCK BEARING 1"  NIB

AMI ASAHI 206PR-E REPLACEMENT BEARING INSERTS 1.180 BORE (NEW SET OF 4)   NNB

LITFUSE FLSR 1 ID POWR-GARD INDICATOR FUSES 1A 600VAC (SET OF 3) NEW NO BOX

LITFUSE FLSR 1 ID POWR-GARD INDICATOR FUSES 1A 600VAC (SET OF 6) NEW NO BOX

BUSSMANN FRS 1 FUSETRON FUSES 1A, 600V CLASS K5 (SET OF 20) NEW CONDITION NO BOX

BUSSMANN FRS 6 1/4 FUSETRON FUSES 6.25A, 600V CLASS K5 (SET OF 7) NEW NO BOX

BUSSMANN LPJ-30SP LOW PEAK TIME DELAY FUSES 30A 600V CLASS J SET OF 2 NEW NO BOX

GOULD SHAWMUT TRS4R DUAL ELEMENT TIME DELAY FUSES 4A 600VAC/DC (SET OF 6)  NNB

BUSSMANN NOS-90 ONE-TIME FUSE 90A 600VAC NEW CONDITION / NO BOX

BRIGHT STAR INDUSTRIES 1903X-19 TRANSISTORIZED CIRCUIT CONTINUITY TESTER  NEW

MILWAUKEE 48-80-0500 SANDING DISCS 4-1/2" 24 GRIT 7/8 ARBOR  NEW BOX OF 20 PCS.

OMRON  MY2N RELAY  110/120VAC  NEW CONDITION / NO BOX

MASTER PNEUMATIC-DETROIT  F100-6 FILTER ASSEMBLY 3/4" NEW CONDITION IN BOX

ALLEN BRADLEY1734D-IB8X0B8E  I/O MODULE 95722702 24VDC NEW CONDITION / NO BOX

EMHART E100 631 B218 INTERFACE SMPS/C BOARD  NOS CONDITION

TRINITY INDUSTRIAL 42-130 3 WAY COLOR CHANGE VALVE  NEW

REXROTH PR7564-51005 HEAVY DUTY REGULATOR 0-125 PSI 3/4" NPT NEW NO BOX

BROOKS INSTRUMENT 1307FJ26CD2DA FLOWMETER 1/2" NPT GPM .02 / 1.0 NEW CONDITION

MAC VALVES MAC125A-V6G2PM-511DA PNEUMATIC SOLENOID VALVE 24VDC NEW NO BOX

AUTOMATIC VALVE  407B87S3S3-AA4 PNEUMATIC SOLENOID VALVE 120V 150PSI  NEW NO BOX

NUMATICS 081SS4002 PNEUMATIC SOLENOID VALVE  120V 150 PSI NEW CONDITION

NUMATICS L1211652BP SOLENOID VALVE HAZARDOUS / INTRINSICALLY SAFE NEW CONDITION

PARKER L7153830253VXBB PNEUMATIC SOLENOID VALVE  120V 150 PSI NEW CONDITION