Yokogawa VM4*D

現(xiàn)場(chǎng)接地常用注意事項(xiàng)

　　DCS系統(tǒng)對(duì)接地要求比較嚴(yán)格，在現(xiàn)場(chǎng)接地時(shí)一定要嚴(yán)格按照DCS廠商的接地規(guī)范嚴(yán)格接地，否則會(huì)影響DCS系統(tǒng)的可靠性。對(duì)DCS系統(tǒng)現(xiàn)場(chǎng)接地時(shí)應(yīng)注意以下幾點(diǎn)：

　　(1) I/O柜的電源地與UPS的電源地必須接至同一個(gè)地，保證等電位。

　　(2) 接地電纜必須符合DCS廠商的要求，并要接到機(jī)柜內(nèi)的接地螺絲上。

　　(3) 系統(tǒng)接地與屏蔽接地不能在機(jī)柜匯合，必須單獨(dú)接入到接地網(wǎng)。

　　(4) 柜間接地不能用機(jī)柜并接螺栓代替，必須用接地線嚴(yán)格連接。

　　(5) 接地要牢固可靠，匯流連接板并要涂防腐漆。

　　(6) 接地電阻符合DCS系統(tǒng)要求，并要進(jìn)行嚴(yán)格的測(cè)定。

　　(7) 接地嚴(yán)格按照DCS廠商接地要求接地，不能為了省事走捷徑或不按照接地線線徑要求進(jìn)行接地。

廈門仲鑫航自動(dòng)化設(shè)備有限公司
★ ：張芳
★ ：  +
★ （請(qǐng)備注張芳收，謝謝?。?br />★ 業(yè)務(wù)
★ ：
★ 地址：廈門思明區(qū)湖濱東路湖光大廈8樓A　

IN BOX NIB ALLEN?BRADLEY PHOTOELECTRIC RECEIVER SENSITIVE 47BN1-1003

WORKING PULLOFF?OMRON OUTPUT UNIT C200H-OD21A 24 VDC

DET DETECTOR CURRENT SUPPLY MODEL 0131 115 VAC

NIB SQUARE D CIRCUIT?BREAKER QOU380 80 AMP 3 POLE 240V 240?VOLT

OMRON PROGRAMMABLE CONTROLLER CPM1A-40CDT-D 24VDC

HYTORK VALVE ACTUATOR EIA-0026-S80-A00 116 PSI 8 BAR 176oF GROUP 2

WATSON MCDANIEL?UNIVERSAL STYLE STEAM TRAP WUS450 316/316L STAINLESS 3/4" TD

SQUARE D CIRCUIT?BREAKER QOU380 80 AMP 3 POLE 240V 240?VOLT

SQUARE D CIRCUIT?BREAKER QOU3100 100?AMP 3 POLE 240V 240 VOLT

PULLOUT ALTECH?SWITCHING POWER SUPPLY PSP-24024

PULLOUT LAMBDA?POWER SUPPLY JWS300-24

ASCO SOLENOID VALVE EF8342C22M 3/8"?PIPE BRASS

IN BOX FAFNIR BALL BEARING 218K

LOT OF 13 PIPE NIPPLES 304/304L STAINLESS 3/4" X 4-1/2"?3/4" X 5" & 5-1/2"

PARKER VALVE PP-04 60 PSI IN/OUT

PULLOFF BECKHOFF SERVO DRIVE AX2523?AX2523-B200

NIB FOXBORO LEVEL CONTROL SWITCH 910-ED3?ST B

ITT/CONOFLOW GB52UC1953 .6875 STROKE?RANGE 3-15 PSI

GE RELAY IC2820-A100BB14E 600 VOLTS?10 AMPS

GE RELAY IC2820-A100BB 600 VOLTS 10?AMPS

PULLOFF OMRON I/O POWER UNIT C500-PS222 3G2A5-PS222 100-120/200-240 VAC

3 NIB SIEMENS FUSES?3NA3140 200 AMP AC 600V

BELLOWS SOLENOID?VALVE L515-39-102

NIB WATTS SAFETY RELIEF VALVE F41A FIG 31 1" THREADED

HORIBA NDIR DETECTOR TYPE N05-3 CO2?C02

FOXBORO A2053CQ-D 820 INLIGENT TRANSMITTER 4-20

2 IN PACKAGE NORDSON TRANSDUCER CABLE 1009363A 6M

PRECISE SENSORS?INDICATOR 4961 4961-3-3000-01

WORKING PULLOFF?PILZ SAFETY RELAY PNOZ-X3-24VAC-24VDC-3N/0-1/N/C-1SO

WORKING PULLOFF?ZICON POWER SUPPLY?ZX350-4624-C 115/230V

WARREN BALL VALVE 6156 A351 CF8M 316?SST 3/4" FLANGED 275 PSIG 150 CLASS

NIB ASCO RED HAT SOLENOID VALVE 8320G184?120/60 110/50 1/4"?3W NC BRASS

NIB ASCO RED HAT SOLENOID VALVE DF8320A185 240/480/60 1/4" 3?WAY NORMALLY CLOSE

ANCHOR FLANGE TWO WAY BLOCK BODY VALVE AES3#12-11DB 5000?PSI

PULLOFF TOSHIBA?NO-FUSE BREAKER S225B 150 AMP 600 VAC 250 VDC

PULLOFF ALLEN BRADLEY 1305 VARIABLE?FREQUENCY DRIVE 1305-BA03A SER C

PULLOUT OMRON IN OUT MODULE CPM1A-20EDT 24 VDC

PULLOUT OMRON IN OUT UNIT CPM1A-20EDT

HANSEN QUICK CONNECT COUPLING HALF 2" 20-HK BRASS

PILZ MODULE P1M-2NK P1M-2NK/120V~/1AIR 120V 3.5 VA

BELLOWS MANUAL VALVE M032-246-84 1/2" NPT 225 PSIG

FOXBORO SENSOR MODULE B0138HS 316L PRESS/RNG M/M

ATHENA TEMPERATURE CONTROL 3020-F-D?RANGE 0-1000 F

MAR TRANSMITTER 507231 30-200 F HIGH LOW ALARM

PRECISE SENSORS?INDICATOR 4961 4961-3-100-01

M SYSTEMS FREQUENCY TRANSMITTER WJPA-1AA-B 100 VAC

SCHMERSAL SWITCH?ZS7310/1SWVD 400V/6A/AC-15 300VAC/6A GP

WORKING PULLOFF?SONY DIGITAL DISPLAY LT10-105

PULLOFF ALLEN BRADLEY SLC 500 POWER?SUPPLY 1746-P2 & 7-SLOT RACK 1746-A7

PULLOFF HIRATA?TEACH PENDANT H-3332?NO KEY

SWAGELOK 40 SERIES 3-WAY BALL VALVE?SS-44XTS6 3/8" TUBE?1500 PSI @ 100oF

LOT OF 3 316 STAINLESS STEEL SST PIPE TEES 2" THREADED 150

LOT OF 20 NIB UNISTRUT 90 DEGREE GUSSET?ANGLE CONNECTORS P2484 GREEN

IN BOX NIB ASCO/RED HAT EXPLOSION PROOF SOLENOID VALVE EF8300D9F 3/8" PIPE

TYCO 3" BUTTERFLY VALVE LUG TYPE BFV-N 250 PSI

MILLER PNEUMATIC?CYLINDER SERIES A A-52B2B-04.00-8.00-0100-N11-0 250 PSI AIR

NIB ALLEN BRADLEY BOARD TERMINAL BOARD 3500-T74 SER A

20 304 STAINLESS?PIPE NIPPLES FITTINGS 1" X 2" 3/4"

PULLOFF OHKURA?CHART RECORDER PID251

15 304 STAINLESS?PIPE NIPPLES 1-1/2"X 6" 2-1/2" +

WORKING PULLOFF?PILZ SAFETY RELAY PNOZ-XV2 PN0Z-XV2 2N/O 2N/OT 24 VDC

NIB HP VISUALIZE WORKSTATION KEYBOARD, MOUSE, SOFTWARE A4030G

SMITH-BLAIR MAXI-GRIP EZ COUPLING SIZE 4" EZ9B4VUMG EZ9?FLEXI-COAT FINISH

PULLOFF OMRON OUTPUT UNIT C500-OD213 24 VDC 3G2A5-OD213

KAY-RAY/SENSALL?CONTROL RC307SSE15 117 VAC 5 AMPS

NIB BECKMAN CONDUCTIVITY CELL SENSOR CEL-I-SS-0002-KJX2-Y125?K-0.0020

NIB DELTA POWER SUPPLY M24-12HE 24 VDC 12A

2 KOBOLD FLOWMETER KDF-3225OR8 KDF-32250R8 1/4" NPT

NIB OMRON POWER SUPPLY MODULE C200HW-PA204R

YORK PC BOARD 031-01093C000 REV B

NIB BECKMAN CONDUCTIVITY CELL SENSOR CEL-BB1 K-1.00/CM 17314A

LOT OF 2 PULLOFF OMRON LINK TERMINALS B7A-R6A13

MELCHER POSITIVE SWITCHING REGULATOR PSR248

PULLOUT DYMEC FIBER OPTIC ETHERNET?LINK 3352

NIB WILKERSON ALARM?MODULE FR1020 NON LATCHING 115 VAC

2 APOLLO BALL VALVES CF8M 1-1/4" THREADED 1500 WOG

PULLOFF LAN PRO?10 BASE T ETHERNET?HUB BNC SWITCH

PULLOFF WESTINGHOUSE CIRCUIT BREAKER MCP-0322RC 3 AMP 3?POLE 600VAC EL3003R

NIB GE INDUSTRIAL RELAY CR120AD03048AA 24 VDC 300 VAC 10?AMP

PULLOFF FUJI TEMPERATURE CONTROLLER?PYZ4 PYZ4RAY1-4V

ROSEMOUNT PRESSURE TRANSMITTER 1151DP3J22 2000 PSI

M SYSTEM FREQUENCY SCALER PRU-21-B?INPUT 1 100 VAC POWER

NIB IN BOX NTN BEARING 2218K

WORKING PULLOFF?COMMERCIAL AUDIO POWER SUPPLY 19A704647-P12

NIB SPC BESTOOL?CRIMP TOOL CTR-8572-01

FISHER PRESSURE?REGULATOR TYPE 67FRSP 3/8" THREADED 400#/SQ IN

ITT DIA-FLO VALVE ACTUATOR 1.5-2000-EN-34-3312 175 CWP

MITSUBISHI FREQROL S500 INVERTER DRIVE FR-S520-0.4K-NA?POWER 1/2 HP

LOT OF 4 2" THREADED PIPE COUPLING 304 STAINLESS STEEL 150 CLASS

NIB TIMKEN TAPERED ROLLER BEARING 644 AND 632

PULLOUT PILZ SAFETY RELAY PNOZX4 PNOZ X4 PN0ZX4

NIB SIEMENS CONTROL RELAY 3T3040-0BB4 4NO 4 POLE

MSA PULLOVER HARNESS INTERGRAL DYNABRAKE 415210 SXL

LOT OF 17 304/304L STAINLESS PIPE NIPPLES 1/4" LENGTHS?6" 5-1/2" 5" SCH40

EMERSON VACUUM?PUMP SA55NXGTE-4870?M100X 1/6 HP 2Z867 DAYTON 115 V

PULLOFF BALDOR?GEARMOTOR GPP12561 HP 1/6 RATIO: 10:1?180 DC

LOT OF 7 GULF BALL BEARING 2212-K C/3 FAG

AUTOCLAVE HI PRESS ELBOW FITTING 316SS 960100-178

3 NIB VALCOR SOLENOID VAVLE 61C19C6 MAX?20 PSI 115V 10W

PRECISE SENSORS?INDICATOR 4961 4961-1000-01

SPI SPARKLE SWITCHING POWER SUPPLY SPI-250G OUTPUT 250W?INPUT 115/230V

JAMESBURY BALL VALVE CF8M 316 STAINLESS 1-1/4" THREADED?1000 CWP 6F-3600MT-B

PULLOFF EMECANIQUE SQUARE D STARTER INTEGRAL 32 LD4LC30 LD4 LC30 32 AMP

LOT OF 43 304/304L PIPE NIPPLES 3/8"VARIOUS LENGTHS 6"?5" 2-1/2" 1-1/2" 2"

PULLOFF MEM EXEL 32A SWITCH DISCONNECTOR

NIB CANON PRISM LENS?TYPE A MG0-0200

2 IN PACKAGE NORDSON TRANSDUCER CABLE 1009364A 9M

PRECISE SENSORS?INDICATOR 4961 4961-3-200-Q

LOT OF 2 NIB MATCO-NORCA FULL PORT GATE?VALVE CAST BRASS 2"?THD 514T08 514

PYROMATION THERMOCOUPLE TEMPERATURE?PROBE 401-185-1825F-00 0-250oF

NIB ASCO RED HAT SOLENOID VALVE T8342C1?4-WAY DIRECT ACTING?120/60 110/50 1/4"

APPEARS DYNEX HYDRAULIC VALVE 8819-06-3/4-30 MAX PSI 3000

FOR PARTS ONLY QUANTROL GS FORCE GAUGE 100NX0.05N 22LBFX0.010LBF

10 316L STAINLESS 90 DEG ELBOW 3000#?1/2" & 3/4"

NIB AEG MODICON INPUT MODULE AS-B805-016?115 VAC

NIB ALLEN BRADLEY PHOTOSWITCH CONTROL BASE 60-1480B B

NIB ROSS SOLENOID VALVE W1616B2322 1-10 BAR 110V/50 HZ 110/120 60 HZ

NIB METTLER TOLEDO LOAD CELL C11103500A?200 LB C3

OMRON COMPOBUS/D MASTER UNIT C200HW-DRM21-V1

NIB AMETEK/USG ARC-LOC GAUGE 1931 30-0-100 4-1/2"

WORKING PULLOFF?SIEMENS CONTACTOR 3TF4722-0BB4 80 AMP COIL 24VDC 3PH 600VAC

DIAMOND POWER POPPET VALVE ASSY 3317416000 600# 2" X 1-1/2"

DWYER TRANSDUCER?601-3 0.20 IN W.C.

NIB ALLEN BRADLEY COMMUNICATION MODULE 1203-GS1 SER C

18 PIPE REDUCERS?304 STAINLESS 1" X?1/4" 1" X 1/2"

PULLOFF ESCORT?FOR ALLEN BRADLEY DATALOGIC MODULE CM1746 AUTO ID

APOLLO BALL VALVE 3/4" 87A20401 CF8M?316 STAINLESS CL 150 275 @ 100oF

MITSUBISHI 3PH?INDUCTION MOTOR SF-HR 4POLE 80M .75

ACRISON CONTROLLER HEAT SINK ASSY 115-0572

WORKING PULLOFF?ADEPT FRONT PANEL CONTROLLER 10330-00375

NIB CUTLER HAMMER TYPE M RELAY D26MR31A?4 POLE

SIEMENS SITOP?POWER 5 POWER SUPPLY?6EP1333-2AA00

HIRATA ROBOTIC?TEACH PENDANT H-3335

MOORE RBT TRANSMITTER RBT/3W10-20/4-20ma/24VDC/-EZ9

FOXBORO MODULE B0138RA-J M/821AL 823 827 4-20 MA

KAY PNEUMATIC VALVE A20011C-10L 120/60

NIB SKF PILLOW BLOCK?BEARING SY 1.3/16 TF

NIB SIEMENS CONTROL?RELAY 3TH3040-0BB4 DC 24V COIL 4P

HITACHI/DEC PERMANENT MAGNET MOTOR 1214659-00

3 NICOLET 16 BIT?ANALYZER PROBE MODEL 51A VARIABLE

WESTINGHOUSE MOTOR STARTER A200M0CVC 765A838G03 SIZE 0?18 AMPS

WORKING PULLOFF?SOURCE POWER SUPPLY?SAX60-04 115/230V

PULLOFF SIEMENS?SITOP POWER SUPPLY?6EP1-331-1SL11 AC 230/120V

PULLOFF AYLESBURY AUTOMATION MODEL?200-2 VIBRATORY FEEDER CONTROL

800 IN PACK ALLEN BRADLEY RESISTORS?CB1005 10 OHMS 5% 0.250 WATT

LOT OF 4 VALWO CF8M 316 STAINLESS BALL VALVES FULL PORT?1/2" BUTT WELD 1000

PULLOFF SOLA POWER SUPPLY SDN-10-24-100 115/230 VAC 50-60 HZ 24 VDC

JAMESBURY BALL VALVE 1-1/4" SOCKET WELD 1 4CFIG3680 XTB2?316 SST

SHARPE 1-1/2" BUTT WELD BALL VALVE CF8M 316 STAINLESS 1000 CWP

JAMESBURY BALL VALVE 1/2" 316 STAINLESS SS 1/2 5150 TG31?3600XT 275 CWP PSIG

PULLOFF GE SAFETY SWITCH 60 AMP 600 VAC 250 VDC MODEL 10 TH3362

TCI 316 STAINLESS SWING CHECK VALVE?WP 200 2" SOCKET WELD

NIB GE FANUC OUTPUT?MODULE 115/230VAC 8CR IC610MDL179A

NIB ALLEN BRADLEY TYPE P CONTROL RELAY 700-P10A1

SQUARE D MOTOR?STARTER SIZE 0 8536SB02S 8536SBO2S

5 NIB ABB SOLID STATE TIMER SSAC TSD2411S 1 SEC

OMRON POWER SUPPLY UNIT PA204R C200HW-PA204R

APOLLO BALL VALVE 86A-205-01 1 1/4"?SOCKET WELD 316

PULLOUT HIRATA?REPEATER H-3337

SICK OPTIC SENDER UNIT SENSOR WSU26-130 24 VDC

NIB BROWNING PILLOW?BLOCK BEARING VPS-223 1-7/16"

FOXBORO PH/ORP HOLDER SENSOR 222T-1X01 STY A

NIB BROWNING FLANGE?BEARING VF2E-231 ECCENTRIC 1-15/16

PULLOUT OMRON SYSMAC MINI SK20 SK20-C2DR-D

NIB AUTOMATIC VALVE?SOLENOID 409C53X19D1-AA 120V

TORQ SPEEDETEX SHAFT SPEED SWITCH ESS1 GEB ESS1GEB

NIB BANNER SENSOR WORLD-BEAM QS18VN6DB 61663

NIB ALLEN BRADLEY PNEUMATIC TIMING RELAY?849-Z0D328

GE CONTACTOR IC4482 TYPE C 24V 225?AMP

NIB ALLEN BRADLEY CONTROL MODULE BASE 60-1686 SER B

MITSUBISHI NO-FUSE CIRCUIT BREAKER?NF225-CS 150 AMP 3 POLE 600V

WORKING PULLOFF?SMARTSCAN 5000 LIGHT CURTAIN TRANSMITTER 5528 24V

WORKING PULLOFF?SMARTSCAN 5000 LIGHT CURTAIN RECEIVER 5528

USG SOLFRUNT AMETEK PRESSURE GAUGE 0-30 PSI SB DIAPHRAGM?316L SST

PULLOFF SMC PNEUMATIC GUIDED CYLINDER MGQL40-50-Z73 MAX?PRESS 1.0 MPA

GE MOTOR CONTACTOR IC4482CTTA368BA124AN TYPE C 24V 225 AMPS

PULLOFF OMRON ASCII UNIT C200H-ASC02

FISHER CONTROL DISK VALVE 4" BUTTERFLY 150-300 SST V166301X012

LOT OF 4 1-1/2"?THREADED PIPE COUPLING 304 STAINLESS STEEL 1000

LOT OF 2 NIB HEAVY DUTY RUBBER WHEEL CHOCKS WITH 15 FEET CHAIN AND HARDWARE

LOT OF 11 304/304L STAINLESS PIPE NIPPLES 1-1/2" X 2-1/2" & 2" & -1/2"

APPEARS MILLTRONICS POINTEK CLS200 LEVEL SENSOR NEMA 4 12-250 VAC

TOTALINE HEAD PRESSURE CONTROL P251-0083H 24 VAC 50-60 HZ 120-480 VAC OUTPUT

SIEMENS 12 CIRCUIT LOAD CENTER 100?AMP CU BUSS G1224B1100 G1224B1100CU

PULLOFF OMRON OUTPUT UNIT C500-OD412 3G2A5-OD412

PULLOFF OMRON INPUT UNIT C500-ID218?3G2A5-ID218

PULLOFF OMRON NC UNIT C200H-NC112 NC112

TRANSMATION ALARM 540A DUAL SPDT 1-5?VDC

LOT OF 4 APPEARS ?MARS REVERSE PHASE?RELAY 32532 175-255?VAC 10 AMP

LOT OF 4 APPEARS ?MARS REVERSE PHASE?RELAY 32532 (1405) 175-255 VAC 10 AMP

ISUZU PROGRAMMABLE ENGINE CONTROLLER MODEL 3100 X-82850-005-1

PULLOFF KEYENCE?CV-R11 STABILIZED POWER SUPPLY