微電腦型單相交流集合式電表(單相二線系統) 特點: 精確度0.25%滿刻度±1位數 可同時量測與顯示交流電壓,電流,頻率,瓦特,(功率因數/視在功率) 交流電壓,電流,瓦特皆為真正有效值(TRMS) 交流電流,瓦特之小數點可任意設定 瓦特單位W或KW可任意設定 CT比可任意設定(1至999) 輸入與輸出絕緣耐壓 2仟伏特/1分鐘( 突波測試強度4仟伏特(1.2x50us) 數位RS-485界面 (Optional) 主要規格: 精確度: 0.1% F.S.±1 digit (Frequency) 0.25% F.S.±1 digit(ACA,ACV,Watt,VA) 0.25% F.S. ±0.25o(Power Factor) (-.300~+.300) 輸入負載: <0.2VA (Voltage) <0.2VA (Current) 最大過載能力: Current related input: 3 x rated continuous 10 x rated 30 sec. 25 x rated 3sec. 50 x rated 1sec. Voltage related input: maximum 2 x rated continuous 過載顯示: "doFL" 顯示值范圍: 0~600.0V(Voltage) 0~999.9Hz(Frequency)(<20% for voltage input) 0~19999 digit adjustable(Current,Watt,VA) 取樣時間: 2 cycles/sec. RS-485通訊位址: "01"-"FF" RS-485傳輸速度: 19200/9600/4800/2400 selective RS-485通信協議: Modbus RTU mode 溫度系數: 100ppm/℃ (0-50℃) 顯示幕: Red high efficiency LEDs high 10.16 mm(0.4") 參數設定方式: Touch switches 記憶型式: Non-volatile E²PROM memory 絕緣抗阻: >100Mohm with 500V DC 絕緣耐壓能力: 2KVac/1 min. (input/output/power) 1600 Vdc (input/output) 突波測試: ANSI c37.90a/1974,DIN-IEC 255-4 impulse voltage 4KV(1.2x50us) 使用環境條件: 0-50℃(20 to 90% RH non-condensed) 存放環境條件: 0-70℃(20 to 90% RH non-condensed) CE認證: EN 55022:1998/A1:2000 Class A EN 61000-3-2:2000 EN 61000-3-3:1995/A1:2001 EN 55024:1998/A1:2001
上傳時間: 2015-01-03
上傳用戶:幾何公差
集合式直流電能表(小功率的) 特點: 精確度0.05%滿刻度±1位數 可同時量測與顯示/直流電壓/電流/瓦特(千瓦)/瓦特小時(千瓦小時) 電壓輸入(DC0-99.99V/0-600.0V)自動變檔功能 顯示范圍0-9999(電流/瓦特/千瓦),0至99999999(八位數瓦特小時)可任意規劃 數位RS-485 界面 (Optional) 主要規格: 輔助電源消耗功率:<0.35VA(DC12V/DC24V) <0.5VA(DC48V) <1.5VA(AC90-240V(50/60Hz)) 精確度: 0.05% F.S. ±1 digit (23 ±5℃) 輸入范圍:Auto range(DC0-99.99V/0-600.0V(DC voltage)) 輸入抗阻:>5MΩ(DC voltage) 取樣時間:10 cycles/second(total) 過載顯示: " doFL " 顯示值范圍: 0-9999 digit(DCA/W(KW)) 0-9999999.999 digit(WH/(KWH)) RS-485傳輸速度: 19200/9600/4800/2400 selective RS-485通訊位址: "01"-"FF"(0-255) RS-485通信協議: Modbus RTU mode 溫度系數: 50ppm/℃ (0-50℃) 顯示幕:Bight Red LEDs high 10.16 mm(0.4") 參數設定方式: Touch switches 記憶方式: Non-volatile E²PROM memory 絕緣耐壓能力:2KVac/1min.(input/output)(RS-485(Isolating)) 1600 Vdc (input/output) (RS-485(Isolating)) 使用環境條件: 0-50℃(20 to 90% RH non-condensed) 存放環境條件: 0-70℃(20 to 90% RH non-condensed) CE認證: EN 55022:1998/A1:2000 Class A EN 61000-3-2:2000 EN 61000-3-3:1995/A1:2001 EN 55024:1998/A1:2001
上傳時間: 2013-11-20
上傳用戶:s363994250
Logger iButton devices have gained a lot of popularity with researchers. Although free evaluation software is easy to use and welldocumented, the choices and inputs that need to be made can sometimes be challenging. This application note explains technicalterms that are common with temperature logger iButtons and how they relate to each other. Additionally, it presents an algorithm tohelp users choose the necessary input parameters, including the sample rate based on a user's needs and the available memory tostore the data.
上傳時間: 2013-11-16
上傳用戶:xywhw1
Semiconductor memory, card readers, microprocessors,disc drives, piezoelectric devices and digitally based systemsfurnish transient loads that a voltage regulator mustservice. Ideally, regulator output is invariant during a loadtransient. In practice, some variation is encountered andbecomes problematic if allowable operating voltage tolerancesare exceeded. This mandates testing the regulatorand its associated support components to verify desiredperformance under transient loading conditions. Variousmethods are employable to generate transient loads, allowingobservation of regulator response
上傳時間: 2013-11-21
上傳用戶:semi1981
memory 分布
上傳時間: 2013-11-17
上傳用戶:123啊
SWIFT 提供的服務 1、接入服務 SWIFT的接入服務通過SWIFTAlliance的系列產品完成,包括: (1) SWIFTAlliance Access and Entry:傳送FIN信息的接口軟件; (2) SWIFTAlliance Gateway:接入SWIFTNet的窗口軟件; (3) SWIFTAlliance Webstation:接入SWIFTNet的桌面接入軟件; (4) File Transfer Interface:文件傳輸接口軟件,通過SWIFTNet FileAct是用戶方便的訪問其后臺辦公系統。 SWIFTNET Link軟件內嵌在SWIFTAlliance Gateway和SWIFTAlliance Webstation中,提供傳輸、標準化、安全和管理服務。連接后,它確保用戶可以用同一窗口多次訪問SWIFTNet,獲得不同服務。
上傳時間: 2013-12-22
上傳用戶:sclyutian
S3C44BOX的BIOS。可使用的命令:help --- show help ? --- = help date --- show or set current date time --- show or set current time setweek --- set weekday clock --- show system running clock setmclk --- set system running clock setbaud ------ set baud rate ipcfg ------ show or set IP address load ------ load file to ram comload ------ load file from serial port run ------ run from sdram prog ------ program flash copy ------ copy flash from src to dst address boot ------ boot from flash backup ------ move bios to the top of flash md ------ show memory data move ------ move program from flash to sdram
上傳時間: 2015-01-22
上傳用戶:ANRAN
The Gray Watson debugging malloc library is C source code for a drop in replacement for the system malloc & other memory manage ment routines. What is unique about this library is that it contains a number of powerful debugging facilities including very comprehensive heap testing and ex- cellent run-time debugging information.
標簽: replacement debugging for library
上傳時間: 2015-02-05
上傳用戶:TF2015
小型加減乘除計數器-ASM程序,包含LINK.EXE,MASM.EXE.
上傳時間: 2014-01-09
上傳用戶:leehom61
Java Clock is a FREE Java applet used to display a clock on your Web pages. You can display either analog or digital clock. The full source code of this applet is also available (visit my home page to download it). You may use this applet on your Web pages WITHOUT paying me fee or royalty as long as credit is given (a link to my home page is enough).
標簽: display Java applet either
上傳時間: 2014-01-12
上傳用戶:woshiayin