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DCS為分散控制系統(tǒng)的英文（TOTAL DISTRIBUTED CONTROL SYSTEM）簡(jiǎn)稱(chēng)。指的是控制危險(xiǎn)分散、管理和顯示集中。60年代末有人研制了作邏輯運(yùn)算的可編程序控制器（Programmable Logic Controller）。簡(jiǎn)稱(chēng)PLC。主要應(yīng)用于汽車(chē)制造業(yè)。70年代中期以完成模擬量控制的DCS推向市場(chǎng)，代替以PID運(yùn)算為主的模擬儀表控制。首先提出DCS這樣一種思想的是原制造儀表的廠商，當(dāng)時(shí)主要應(yīng)用于化工行業(yè)。后又有計(jì)算機(jī)行業(yè)從事DCS的開(kāi)發(fā)。
70年代微機(jī)技術(shù)還不成熟，計(jì)算機(jī)技術(shù)還不夠發(fā)達(dá)。操作站、控制器、I/O板和網(wǎng)絡(luò)接口板等都是DCS生產(chǎn)廠家自行開(kāi)發(fā)的，也就是所有部件都是專(zhuān)用的。
Kyowa HWF20X 20x Microscope Eyepiece
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Olympus NFK 3.3X LD Microscope Eyepiece
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Olympus H100-012-090-HM?25 Probe w/Attachment
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Kruss DSA10 Control Unit for Analyzer G120 Mk1 / G140-Mk1 100-240VAC 150W
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Bausch & Lomb 20x Eyepiece
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Envirco Filter Fan Enclosure 23.62"x23.62"x9?" 110V (broken on/off switch)
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New Lot of 100 Hewlett Packard 5180-4197 Clear Glass Vials, 32mm x 11mm I.D.
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New Lot of 100 LoVial 60825P-1232 Autosampler Amber Vials w/Marking Spot
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Box of 19 Analtech 20x20cm 2000um Pre-Coated Thin Layer Chromatography Plates
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Box of 100 Acrylic Cuvettes 10 x 10 x 45mm
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Glas-Col 100A O402 Standard Heating Mantle for 250ml Round Bottom Flask 120VAC
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Lot of 125 Hewlett Packard Agilent 5181-1215, 11mm Blue Crimp Cap PTFE/Synthetic
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Cole-Parmer 37000-00 Temperature, Humidity and Air Velocity Meter w/ Hard Case
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New Mitutoyo 378-502 VMU-2H Video Microscope Unit w/ C-Mount for Video Camera
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Stulz P-3-B80 Ultrasonic Humidifier Control Cabinet 208VAC 15A 1.7kW *For Parts*
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Asco 302116 Redhat Solenoid Valve
Envirco 69406005 Filter Fan Enclosure 23.62"x23.62"x9?" 220V (missing pre-filter)
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MicroAir MT800 Ambient Filtration Unit with 5" Duct 120VAC *Motor Wobbles*
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New Filter 12" x 12" x 3" HEPA Wood Fiber
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Tenney BTC Environmental Chamber 230VAC 30A 1PH 2kW *Needs Cooling Serviced*
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VWR 1186D Digital Circulated Water Bath Control Unit 120VAC 13A *Control Only*
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VWR 1295PC Water Bath 30L Capacity Amb. +5° to 100°C ±0.3°C *Slight Corrosion*
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VWR 1295PC Water Bath 30L Capacity Amb. +5° to 100°C ±0.3°C 115VAC 6A 60Hz
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Keystone 08P03005HN 3.0-Micron Polypropylene Filter 2.700"-OD x 4.910"-L
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VWR 1180A Water Bath -25° to 100°C 28L 120VAC 14A (Needs Freon Recharge)
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Neslab CFT-150 Programmable Chiller 208-230VAC 22.5A 1.5HP R-22 4.1lbs 1 PH
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Sony TW-TL1S Video Microscope, NTSC Color, 410,000 Pixels, 10x Zoom
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Mettler Toledo BBA-462-15-LA Compact Scale, 240V, 15kg Capacity *See Details*
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Fisher Scientific 282A Isotemp Vacuum Oven 115VAC 15A 1700W 280°C 1.5 cuft
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Heraeus Kendro VT6130 M-BL Vacuum Oven for Solvents 200°C 128L Capacity Gas Line
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Kendro Heraeus T6030 Benchtop Heating Oven 300°C 120VAC 6.8A 0.8kW *Hole on Top*
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Kendro Heraeus T 6030 Benchtop Heating Oven 300°C 120VAC *Scuffing* *See Detail*
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Kendro Heraeus T 6030 Benchtop Heating Oven 300°C 6000 Series 120VAC 6.8A 0.8kW
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Thermolyne S108500 Safe-T S10 Explosion Proof Stirrer 60-1200RPM w/ Nipple
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Sartorius YD102-Z Zener Barrier, 64' Cable Length, *For Parts Only*
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Sartorius YD102-Z Zener Barrier, 65' Cable Length, *Minor Damage to Insulation*
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Thermolyne S108500 Safe-T S10 Explosion Proof Stirrer 60-1200RPM w/ Junction Box
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Sartorius YD102-Z Zener Barrier, 64' Cable Length, *Missing Strain Relief*
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Sartorius FC6CCE-HX Explosion Proof Scale Rear Mount w/YPS02-ZKR, See Details
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Sartorius FC6CCE-HX Explosion Proof Scale Rear Mount w/YPS02-ZKR *See Details*
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Thermolyne S108500 Safe-T S10 Explosion Proof Stirrer 60-1200RPM w/ Conduit Box
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Bibby CB161 Magnetic Stirrer, 100-1500RPM, 160mm x 160mm Plate *For Parts Only*
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Thermolyne S108520-33 SAFE-T S10 Stirrer for Potentially Explosive Atmospheres
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Bright 5030 Microtome w/ Motor Control Trim Single Top and Bottom Speed Control
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VWR 33918-258 365 Stirrer 7" x 7" 110VAC, 50Watts, 1 Phase
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Abbott Commander LN 8A50-85 Dynamic Incubator 8 Shelf
Mettler Toledo 11780572E Excellence Plus XP Balance Operating Instructions
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Mettler-Toledo 17780747C Excellence Plus XP Balance Operating Instructions
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Mettler Toledo 11781077 Excellence Plus XP Balance Operating Instructions Part 2
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New in Box Mettler Toledo XP8002S Precision Balance 8100g Capacity 0.01g
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Dover TI-14 Flexo Tension Indicator, Range: 0-500
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New Lot of 2 Camfil MGA-305x457x110 H14 Air Filter 99.9991% - 99.9992% Eff
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New Lot of 2 Camfil MGA-305x457x110 H14 Air Filter 99.99% - 99.9992% Efficiency
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New Meissner Pall R1F020 Filter 10" x 2.5"
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Sartorius YDP03-0CE Data Printer
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Mettler Toledo LC-P45 Printer for Laboratory Balance RS-232C LocalCAN 115VAC
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Mettler Toledo BBA462-15ST Precision Counting Scale 30lb (missing front feet)
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Sellstrom Wall Mounted Spill Control Station 15" x 30.375" x 9.5" w/Contents
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AND HA-200A Analytical Balance with Automatic Door 15VDC *For Parts Only*
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AND HA-200A Analytical Balance with Automatic Door 15VDC 0.8A w/ Power Supply
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AND HA-200A Analytical Balance with Automatic Door 15VDC 0.8A *Discolored*
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Keystone 08P00405HE 0.1-Micron Polypropylene Filter 2.700"-OD x 4.910"-L
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New Box of 300 Cleanroom Nylon Bags 3"x8.5" 0.002" Thick
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New Lot of 12 Water Filters 29mm-ID 62mm-OD 29-7/8" Long
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