IC693CBL304
IC693CBL304
IC693CBL304
在电磁流量计出厂时，其度已经过线。但在使用现场，由于受环境条件、流体特性以及仪表本身如元器件损坏等原因引起仪表运行故障等情况，对于长期使用后的流量计有必要进行一次常规的现场校准。由于电磁流量计的传感器安装在管道上，难以拆下送至线进行检查，而目前在流量计量范围内，和地方对大口径流量计尚未有现场条件下进行在线检验的规程和其它法规文件。为了保证电磁流量计在故障修复后以及长期使用后的精度和可靠性，而又不影响日常生产，下面介绍几点在线校准方法。
1.对电磁流量计励磁线圈进行安全绝缘测试，应大于20MΩ。
2.对电磁流量计励磁线圈进行铜电阻测试，应与原出厂值相同(环境温度相同时)。
3.对电磁流量计传感器电极对地电阻进行测试，若电阻值在2一20kf之间，并伴有充放电现象，两只电极的电阻相近，则认为好的。
4.对电磁流量计转换器励磁电流进行测试，观察其输出与转换器原电流的值，误差不过士0. 25mA 。
5.对电磁流量计转换器模拟量输出及频率输出进行测试，观察其线性变化情况，并计算其大线性误差，应不过士0.5%。
6.对DN 1200mm以上的电磁流量计，应测试推动级NB，电流误差不过12mA。
【】 【诚信】 【创新】 【合作】 【共赢】
ALLEN BRADLEY 1785-ACC5LA ACCESSORY KIT FOR PLC-5/11,5/20
ALLEN BRADLEY 1785-ACC5LB ACCESSORY KIT FOR PLC-5/30 OR HIGHER
ALLEN BRADLEY 1785-ACC5LT ACCESSORY KIT FOR CLASSIC PLC-5
ALLEN BRADLEY 1785-BCM PLC-5 BACKUP COMM MOD
ALLEN BRADLEY 1785-BEM PLC-5 BACKUP COMMUNICATIONS EXPANSION MODULE
ALLEN BRADLEY 1785-CHORAD REMOTE ACCESS MODEM KIT FOR CONN TO SER.CHAN PLC5
ALLEN BRADLEY 1785-CHORADC3B MODEM CABLE FOR PLC-5 TO MODEM
ALLEN BRADLEY 1785-CHBM BACKUP MEMORY CARTRIDGE
ALLEN BRADLEY 1785-ENET PLC-5 ETHERNET/IP EXPANSION MODULE FOR PLC-5
ALLEN BRADLEY 1785-KA DATA HGWY PLUS INTERFACE MODULE
ALLEN BRADLEY 1785-KA3 PLC-2 DATA HGWY PLUS COMM ADAPTER MOD
ALLEN BRADLEY 1785-KA5 COMM MODULE DATA HWY PLUS TO DATA HWY 485
ALLEN BRADLEY 1785-KA5P COOMUNICATION MODULE,PANEL MOUNT
ALLEN BRADLEY 1785-KE DATA HGWY PLUS RS232 INTERFACE MOD
ALLEN BRADLEY 1785-L11B PLC-5/11 PROCESSOR, (1) DH+/RIO PORT, 8K MEMORY
ALLEN BRADLEY 1785-L20B PLC-5/20 PROCESSOR (1) DH+/RIO PORT, (1) DH+ PORT W/16K
ALLEN BRADLEY 1785-L20C15 PLC-5/20C FOR CONTROLNET PHASE 1.5
ALLEN BRADLEY 1785-L20E PLC 5/20 ETHERNET CONTROLLER 16K WORD SRAM
ALLEN BRADLEY 1785-L26B PROTECTED PLC 5/20 CONTROLLER, 16K WORD SRAM
ALLEN BRADLEY 1785-L30B PLC-5/30 CONTROLLER,32K WORD SRAM
ALLEN BRADLEY 1785-L40B PLC 5/40 PROCESSOR
ALLEN BRADLEY 1785-L40C15 PLC-5/40C FOR CONTROLNET PHASE 1.5
ALLEN BRADLEY 1785-L40E PLC 5/40 ETHERNET CONTROLLER, 48K WORD SRAM
ALLEN BRADLEY 1785-L40L EXTENDED LOCAL 5/40, 48K SRAM
ALLEN BRADLEY 1785-L46B PROCESSOR MODULE PLC5/40 48K WORD SRAM, PROTECTED
ALLEN BRADLEY 1785-L46C15 PROTECTED PLC 5/40 CONTROLLER, 48K WORD SRAM
ALLEN BRADLEY 1785-L60B CONTROLNET PLC-5/60 CTRLR,64K WORD SRAM
ALLEN BRADLEY 1785-L60L LOCAL PROCESSOR 64K SRAM
ALLEN BRADLEY 1785-L80B PLC 5/80 CONTROLLER 100K WORD SRAM
ALLEN BRADLEY 1785-L80C15 PLC 5/80 CONTROLNETPHASE 1.5
ALLEN BRADLEY 1785-L80E ETHERNET/IP PLC-5/80 CONTROLLER 100K WORD SRAM
ALLEN BRADLEY 1785-L86B PLC 5/80 CONTROLLER 100K WORD SRAM
ALLEN BRADLEY 1785-LT PLC-5/15 PROCESSOR MODULE, 6K MEMORY
ALLEN BRADLEY 1785-LT2 PLC-5/25 PROCESSOR MODULE, 13K MEMORY
ALLEN BRADLEY 1785-LT3 PLC-5/12 PROCESSOR MODULE, 6K MEMORY
ALLEN BRADLEY 1785-LT4 PLC-5/10 PROCEESOR MODULE, 6K MEMORY
ALLEN BRADLEY 1785-M100 PLC-5/80 EEPROM MEMORY CARTRIDGE,100K
ALLEN BRADLEY 1785-ME16 EEPROM MEMORY CARTRIDGE
ALLEN BRADLEY 1785-ME32 PLC-5/30 EEPROM MEMORY CARTRIDGE
ALLEN BRADLEY 1785-ME64 PLC-5/40 5/60 EEPROM MEMORY CARTRIDGE
ALLEN BRADLEY 1785-MJ 8K EEPROM MEMALLEN BRADLEY 1785-MK 16K EEPROM CARTRIDGE
ALLEN BRADLEY 1785-MS PLC-5 8K RAM MEMORY MODULE
ALLEN BRADLEY 1785-MR 4K RAM MEMORY CARTRIDGE
ALLEN BRADLEY 1785-O5C PLC
ALLEN BRADLEY 1785-TAM THIN-WIRE TRANSCEIVER CABLE KIT
ALLEN BRADLEY 1785-TAS THIN-WIRE TRANSCEIVER CABLE KIT
ALLEN BRADLEY 1785-TBM THIN-WIRE TRANSCEIVER CABLE KIT
ALLEN BRADLEY 1785-TBS THIN-WIRE TRANSCEIVER CABLE KIT
ALLEN BRADLEY 1785-TR10B2 AUI TO THIN WIRE ENET TRA
ALLEN BRADLEY 1785-TR10B5 AUI TO THIN WIRE ENET TR
ALLEN BRADLEY 1785-TR10BF AUI TO F.OPTIC ENET TRANS
ALLEN BRADLEY 1785-TR10BT AUI TO TW PAIR ENET TRANS
ALLEN BRADLEY 1785-V30B VME PLC 5/30 CONTROLLER 32K WORD SPAM
ALLEN BRADLEY 1785-V40B VME PLC 5/40 CONTROLLER 48K WORD SPAM
ALLEN BRADLEY 1785-V40L VME PLC 5/40 CONTROLLER W/EXT LOCAL PORT
ALLEN BRADLEY 1785-V80B PROCESSOR MODULE VME/PLC5 100K WORD SRAM
