N08001-4019-000-09

N08001-4019-000-09

N08001-4019-000-09

N08001-4019-000-09

DCS在控制上的大特点是依靠各种控制、运算模块的灵活组态，可实现多样化的控制策略以满足不同情况下的需要，使得在单元组合仪表实现起来相当繁琐与复杂的命题变得简单。随着企业提出的高柔性、益的要求，以经典控制理论为基础的控制方案已经不能适应，以多变量预测控制为代表的控制策略的提出和成功应用之后，过程控制受到了过程工业界的普遍关注。需要强调的是，广泛应用各种控制与优化技术是挖掘并提升DCS综合性能有效、直接、也是具价值的发展方向。

在实际过程控制系统中，基于PID控制技术的系统占80%以上，PID回路运用优劣在实现装置平稳、、运行中起到举足轻重的作用，各DCS厂商都以此作为抢占市场的有力竞争砝码，开发出各自的PID自整定软件。另外，根据DCS的控制功能，在基本的PID算法基础上，可以开发各种改进算法，以满足实际工业控制现场的各种需要，诸如带死区的PID控制、积分分离的PID控制、微分先行的PID控制、不完全微分的PID控制、具有逻辑选择功能的PID控制等等

TRU-TECH AUTOMOTIVE DR318 ROTOR

TRW 2-1/2'' FIG K12 HMP MOD A MISSION CHECK VALVE

TRW 3'' FIG K12 HMP MOD A MISSION CHECK VALVE

TSUBAKI 12TAPERED BUSHING 1-1/8" BORE

Tsubaki L110S Coupling Spider Insert USIP

TSUBAKI RS160-2-JL OFFSET LINK

T-TEC 1060 Kwik-Fit Field Cuttable Thermocouple Input  TE-31811-B

TUBE UNION SSP-316-*-HYK

Tubing PA0504025 4 / 2.5 Blue 25 MTRS

TURN-ACT 122-133-05 ROTARY VANE ACTUATOR

TURN-ACT SK-TAC2050 ACTUATOR SEAL KIT

TWECO 44-3545 MIG-GUN OPTIMUM WIRE CONDUIT

Twist Lock Locking Receptacle Outlet 30A 120/208V 4P 5-Wire L21-30

TYCO 4000-03AW18K42F 50VA TRANSFORMER PRI: 277V SEC: 24VAC

TYCO 6PCV-09-007 CONNECTOR BARRIER STRIPS 9-POSITION 0.375"

Tyco Electronics 5SFT-401 Ratio 400:5 Current Transformer  5SFT401

TYLAN FM-380 MASS FLOW METER 50 SCCM FM-380 SAV

TZN4M-14S Autonic Temperature Controller Multi Range Multi Sensor

U. S. Energy M-2X Power Management System

U. S. Energy M-NSB Night Setback Programmer

U.S. GAUGE 0-PSI GAUGE

U.S. GAUGE TEMPERATURE & PRESSURE 200 PSI / 320 DEGREE *F

UD-15L ELECTRIC MOTOR UD-15L-1006 P/N VES-1002A

UE UNITED ELECTRIC TYPE J1MODEL 449 PRESSURE SWITCH

UEDA SEISAKUSHO P5S-10-3T PRESSURE CONTROL

ULTRA AIR CF3314-FE AIR FILTER ELEMENT

ULTRA FILTER SMF 02/05 COALESCING FILTER ELEMENT

ULTRAFILTER 121548 FILTER ELEMENT ()

ULTRAFILTER INTERNATIONAL SS05/23 FILTER ELEMENT

ULTRA-LUM UVB-ULTRAVIOLET UV TRANSILLUMINATOR 900-1241-02

ULTRAMAT ULTRAFILTER UFM-T

UNA-DYN 803PCB-048 CONTROLLER CARD BOARD

UNBRANDED BEARINGS 35831-A

UNBRANDED O-RING WS03X10038

UNIMAX LIMIT SWITCH , 2HBT208J-1

UniMeasure P420-200 Transducer

UNION CARBIDE 301213 DIGITAL SETPOINT CONTROL ASSEMBLY BOARD

UNION CARBIDE 996255 LOGIC CIRCUIT BOARD

UNION CARBIDE 996255 LOGIC CIRCUIT BOARD (no knobs)

UNION CARBIDE LINDE R-8M-75-GLASS TUBE FLOW METER S-925-J-193-AAA

UNION CARBIDE WELDING PRODUCTS CIRCUIT BOARD 994250

UNION ELECOM SDA3-240Z SOLID STATE RELAY 40A 40 AMP 240VAC

UNION SWITCH MICROLOK DC LAMP DRIVER 18W, SM 6800N, 076093-008 , N45144167

UNITED ELECTRIC B54-103 TEMPERATURE CONTROL

UNITED ELECTRIC H105 146 PRESSURE SWITCH 105 SERIES

UNITED ELECTRIC H105-126 9520 PRESSURE SWITCH

UNITED ELECTRIC H400 S126B PRESSURE SWITCH

UNITED ELECTRIC J990T-P22 PRESSURE TRANSMITTER

UNITY AG-S-4419 6" DECK LIGHT w 4419 LAMP 12VDC

UNITY POWER SYSTEMS SINGLE PHASE TRANSFORMER 120V , UP1301F

Universal 60-Watt Dimming Driver 12-V Power Supply for 12-V Lighting Armacost

UNIVERSAL DYNAMICS PCB-04PC BOARD UNA-DYN

UNIVERSAL DYNAMICS PCB-082B PRESSURE / O2 TRANSMITTER BOARD UNA-DYN

UNIVERSAL ENERGY CONTROL MOTION DETECTOR LIGHTING CONSERVER , C-400

Universal Energy Control RRU-277 277v 20 Amp Auxiliary Relay RRU

Universal Energy Model HS Plenum Cable 20 Feet

UNIVERSAL GROUNDING KIT PI 1019 A , PI1019A

Universal Lighting B228PUNV115-D Electronic Ballast F28T5 120V TO 277V 50/60Hz

UNIVERSAL LIGHTING M175ML5AC3M METAL HALIDE BALLAST

Universal Triad C213UNVME CF Electronic Ballast - Mult-E Kit w/ Adapter Plate

UPDATE 5" PAD COUNTER

UPONOR ProPEX LF Brass Commercial Ball Valve Full Port PEX x PEX

URA GROUP CPT-5767 TRANSFORMER

URB BEARINGS 7310B BALL BEARING

URC CT-11667U-800-RAC PRO MULTI RATIO CURRENT TRANSFORMER

US FILTER SEDIMENT FILTER CARTRIDGE , P5-478 ()

US GAUGE 0-10,000 PSI PRESSURE GAUGE 14645 (cracked glass)

US Gauge Ametek 300 PSI 1/2 AMPT LBM 1903

US ROBOTICS 64-245630-056K FAX MODEM

US Seal PS-460 Seal PS460

US0009004PIN CORDSET CABLE CONNECTOR

USAI Lighting Bevel Square 9363-10

USBCC2FERRAZ SHAWMUT 2 POLE FUSE BLOCK HOLDER 30A-600V

USG 21066 Industrial Gauge 0-10 psi

USG US GAUGE 0-PSI GAUGE

USG-A N451552-010LOW VOLTAGE ARRESTER ARRESTOR ()

USHIO 100036BULB 100W 120V

USHIO JT120V-150WG BULB

USHIO LIGHTING 1000365 ESS HALOGEN LAMP LIGHT BULB120V-250WGB

UTILITY RELAY CO. B-521L-P2 AC-PRO AC TRIP UNIT w QUICK-TRIP

UTILITY SOLUTIONS XLT USXLT-PORTABLE LOADBREAK TOOL 27KV MAX

UV MONITOR 170001-0001-08 REV 08

V163 Versa Diaphragm

V23154-C0721-B10RELAY with PHEONIX CONTACT EMG 22-RELS/K1-G 24

V3L-1111-D8 HONEYWELL MICRO SWITCH LIMIT SWITCH

V80 VX7 TIMING BELT GATES SUPER HC VEXTRA

VACCON VDS-DIGITAL SENSOR

VAISALA HMP235 A1A0A1AA12A1A3B HUMIDITY & TEMPERATURE TRANSMITTER - NO PROBE