描述
判斷波動數據是否為工藝上相關參數,若是相關參數則通知儀表及微機人員檢查,看是否某調節(jié)系統(tǒng)波動引起相關參數變化,同時將相關調節(jié)系統(tǒng)打到手動狀態(tài),必要時到現(xiàn)場進行調節(jié)。如水溶液全循環(huán)裝置中,尿素合成塔壓力正常時為l9.67MPa,如果突然大范圍波動,此時勢必引起下游的中壓系統(tǒng)、低壓系統(tǒng)壓力波動,這種情況是由于幾個相關參數中某一參數波動引起其他參數變化,并不是控制系統(tǒng)本身故障。
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主營:世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國AB)系列產品》
②Schneider(施耐德電氣)系列產品》
③General electric(通用電氣)系列產品》
④Westinghouse(美國西屋)系列產品》
⑤SIEMENS(西門子系列產品)》
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順序控制、梯形邏輯控制、事故追憶處理、數模轉換、輸入/輸出信號處理、數
據通信及處理等。Invensys Triconex:冗余容錯控制系統(tǒng)、基于三重模件冗余(TMR)
結構的zui現(xiàn)代化的容錯控制器。
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SYMMETRICOM TMSL,090-40010-01,D0CPBA03AA,40010-01
Lucent/Symmetri?com OMQ 408645968 Board 5 MHz Oscillator
Symmetricom GoWide 9.2 Go Wide Modem Router 10/100M
Symmetricom DATUM X72
Symmetricom 58529A GPS Line Amplifier
Symmetricom Telecom Solutions 090-40012-02 Iss A TOTA
Symmetricom 58532A N type female GPS antenna antenne
Datum/Symmetric?om SSU-2000 DS1 20 Outputs 23413017-000
Symmetricom GPS Antenna Bracket 093-00001-01
SYMMETRICOM 090-40015-01 Matrix Control Unit DOCPBF03AA
SYMMETRICOM DATUM TIME CODE CONVERTER IRIG MODEL 9400
Symmetricom/HP 58538A Lightning Arrestor DC-2.5 GHz
SYMMETRICOM 090-40012-02 TOTA Unit DOCPBC15AA 40012-02
SYMMETRICOM 089-40013-01 Motherboard ST 3 DCD 40013-01
SYMMETRICOM 090-40011-01 Toc Unit DCD 400 40011-01
SYMMETRICOM 090-40014-01 Fuse&Alarm Unit DCD 400 FA
Datum Symmetricom PRR-10 GPS DS1 Reference Controller
SYMMETRICOM 090-40010-01 Clock Input Unit DCD 40010-01
Symmetricom Telecom Solutions 090-45015-01 ISS.A MCA-5
Symmetricom 58521A GPS Cable w/Extras
TrueTime Symmetricom TimeVault GPS Network Master Clock
SYMMETRICOM,090-45015-01 ISS.A REV-G,D0PQABJ1AA
Symmetricom Telecom Solutions 090-45014-02 ISS B SAI
Symmetricom GPS/VOLUTE ANTENNA BRACKET 093-0000-01 NEW
HP AGILENT 58502A SYMMETRICOM DISTRIBUTION AMPLIFIER
TrueTime Symmetricom NTS-200 GPS Network Master Clock
Symmetricom Telecom Solutions 090-40010-01 CI DCD
Symmetricom Telecom Solutions 090-40011-02 Iss A TOCA
Symmetricom Telecom Solutions 090-40022-07 iss A TOGA
Datum/Symmetric?om bc635VME Time&Frequency Processor,VME
SYMMETRICOM 090-40013-01-IS?S-A
Symmetricom DS1 Output Module 23413017-000-0
Symmetricom TimeExpander Network Timing Expander Manual
SYMMETRICOM Model:Z3827A Remote GPS Receiver/Antenn?a
TrueTime Symmetricom NTS-200 Network Master GPS Clock
Symmetricom TrueTime NTS-200 Network Master GPS Clock
Symmetricom Z3801A GPS Install&User’s Guide
TrueTime Symmetricom NTS-200 Network Master GPS Clock
TrueTime Symmetricom NTS-200 GPS Network Master Clock
TrueTime Symmetricom NTS-200 GPS Master Network Clock
HP/AGILENT/SYMM?ETRICOM 55412A ITH CARD FOR A 55400A NSU
HP/AGILENT/SYMM?ETRICOM 55481A CARD 55400A NETWORK UNIT
HP/AGILENT/SYMM?ETRICOM 55485B CARD 55400A NETWORK UNIT
HP/AGILENT/SYMM?ETRICOM 55482A CARD 55400A NETWORK UNIT
DATUM SYMMETRICOM GPS LC E1 FRAMER OCXO
ALVARION SYMMETRICOM 111-03850 AN1280 ANTENNA GPS L1
SYMMETRICOM TIMESOURCE 3100 72020-01 ISS A
Symmetricom NTBW50AA 090-03845-02 Voltage Timing Module
Nokia Symmetricom EXT GPS Antenna 469357A New
Symmetricom 58529A GPS Line Amplifier with L1 Bandpass
Symmetricom 090-58537-01 GPS ACTIVE SMARTSPLITTER 4PORT
Bancomm/Symmetricom PC03V VMEbus Time Code Processor
Bancomm/Symmetricom PC26V VME LED Display PCB
Symmetricom 090-45190-01 DCD-519 SHELF DIGITAL CLOCK