idrc_cp300_manual.pdf - 第6页

3-1 參 . 規格特性 Basic specificat ion Line measur e ： Single phas e, two co nductor (1 Ø 2 ω ) Values measure d ： Voltage, c urrent, Acti ve power , Power factor, reactiv e power, app arent pow er, freque ncy. Measure ment r…

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2-1
貳.特點
１．具有 100KHz 全自動換檔，5 位數計頻器。
２．V、A、Hz 量測頻寬達到 100KHz。
３．採用軟體校正方式，校正容易，穩定性佳。
４．RS-232 界面標準配備。
５．RS-232 傳輸速率面板設定。
６．各功能更新率在每秒 3 次以上。
７．七種量測功能：V、A、Hz、W、PF、VA、VAR。
８．手動、自動換檔，讀值平均功能。
９．四組視窗，同時顯示 4 種測試值。
１０．低電流測定精度高，適合綠色電腦、綠色監視器測試。
3-1
參.規格特性
Basic specification
Line measure ： Single phase, two conductor (1Ø2ω)
Values measured ： Voltage, current, Active power, Power factor,
reactive power, apparent power, frequency.
Measurement ranges ： Voltage, current and active power see separate
table of ranges and resolution
Frequency：10Hz~100KHz
Operating principle ： Voltage and current：True RMS
Power：Analog multiplier circuit.
Range selection ： Auto or manual (remote via RS-232)
Sampling rate ： 3.3 times/sec
Input impedance ： Voltage：approx 1MΩ
Current：approx 10mΩ(CP-310, CP-320A)
approx 5mΩ(CP-350)
Maximum allowable input ： Voltage：650Vrms
Current：20A RMS 50A peak(CP-310, CP-320A)
50A RMS 125A peak (CP-350)
Maximum common mode
voltage
： Voltage and current input terminals：600Vrms
Crest factor ： 3
Input method ： Voltage：resistance divider
Current：shunt
Input terminals ： Large binding posts.
Effective input range ： 5% to 100% of the set range.
Temperature Coefficient ： Less than ±0.05% f.s/℃
Averaging function ： Displays computed average (fix 3 measured).
Computing Function
Apparent power Reactive power Power factor
VA=VXA VAR=√(VA
2
－W
2
)
PF=W/(VA)
Computing Range ：VA, VAR：Voltage and current range
PF ：Zero to unity leading or lagging.
Computing Accuracy ：VA, VAR：±0.05% of rated value
PF ：±0.001
3-2
Frequency measurement function
Operating principle ： Reciprocal counting method.
Measurement range ： 5% to 100% set range (10Hz~100KHz)
Auto Range ： 450Hz/10KHz/100KHz
Accuracy ： ±1 DGT of the range
Measurement cycle ： 3.3 times/sec
Display Range ： 10.00Hz~99999Hz (5 digits)
Interface
RS-232：
Baud Rate ：1200,2400,9600 bps
Transmission system：Start-stop synchronization. 8 bit ,1 stop bit ,none parity
Accuracy (at 23℃±5℃, power factor 1, warm-up time at least 30 minutes)
Power Range and Resolution
CP-310
A
V
0.2000A 2.000A 20.00A
150.0V 30.00W 300.0W 3000W
300.0V 60.00W 600.0W 6000W
500.0V 100.0W 1000W 9999W
Frequency V.A Power
10Hz~45Hz ±0.15% ±0.2%
45Hz~66Hz ±0.1% ±0.1%
66Hz~450Hz ±0.1% ±0.12%
450Hz~5KHz ±0.15% ±0.2%
CP-320A
A
V
0.2000A 2.000A 20.00A
30.00V 6.000W 60.0W 600.0W
300.0V 60.00W 600.0W 6000W
500.0V 100.0W 1000W 9999W