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項目清單
產品資訊
用於監控電力消耗、能源管理、效能評估，以及確定電器或設備的運行效率
MICROTEST功率電錶7120應用於AC/DC和DC/DC電源相關的參數測量，量測頻率範圍從15Hz-100kHz，支援最高50階諧波分析，滿足Charger、Adapter、LED Driver、Inverter與DC/DC Converter等產品測試。
功率電錶(Power Meter)
Model:
7120
Maker:
MICROTEST
功率電錶應用於照明/LED、變頻電機、家電產品與太陽能光電等測量電源功率相關參數。
7120支援50階諧波分析功能
在電力系統諧波指的是電壓或電流的頻率為系統基頻的倍數，諧波通常都是因為負載或非線性元件所產生的(如磁飽和的磁性元件)，關鍵是電網中的諧波是電力品質中最常見的問題，它會促使設備與導線額外的發燙，亦釀成馬達的轉矩脈動或是閘流體整流模組誤觸發。為滿足電源功耗更精密的測量，7120支援50階諧波分析能力，可測量高達100kHz的元件，達到高階諧波分析功能。
功能特點
- AC/DC兩用安培/瓦特小時計
- 寬廣量程範圍0.001W~16KW
- 最高50階諧波分析功能
- 附PC Link軟體
- 具波峰因素比顯示
- 1000組量測數據保存空間
- 電流波峰因數最高CF9
- 自動換檔速度快
- 待機功率解析度達 0.001W
MICROTEST功率電錶功能
規格
| Model | 7110 |
| Frequency Range | DC, 15Hz~10KHz |
| Harmonic (option) | ● / – |
| Model | 7120 |
| Frequency Range | DC, 15Hz~100KHz |
| Harmonic (option) | ● / – |
| Parameters | Range |
| Vrms | 0.1V ~ 600V |
| Vdc | 0.1V ~ 600V |
| Irms | 0.1mA ~ 20A |
| Idc | 0.1mA ~ 20A |
| W | 0.01W ~16KW |
| PF | 0.000 ~ ±1.000 |
| Deg | -180°~ +180° |
| THD | 0.01% ~ 99.99% |
| Hz | 15Hz ~100kHz |
| Measurement Range | |
| Current (fixed/Auto) | 0.01A、0.03A、0.1A、0.3A、1A、3A、10A
20A |
| Voltage (fixed/Auto) | 10V、30V、100V、300V、600V |
| Harmonics SPEC | |
| Analysis base | To achieved stable fundamental frequency
analysis by voltage or current (non-inverter) |
| Frequency Range 45Hz | 45Hz – 440Hz |
| FFT Data Length | 1024 |
| FFT Data Format | 32 bits |
| Measurement
Projects
|
1-50 THD, 1-50 level voltage and current
V [n], A [n] 1-50 level voltage and current distortion percentage V [n%], A [n%] 1-50 level watts W [n] 1-50 level watts distortion percentage Watt W [n%] 1-50 level voltage and current angle DEG [n] Vrms, Irms, Watt, PF |
| Model | 7110
7120 |
| Frequency Measurement Mode | To achieved stable base frequency measurement (variation less than 1%) by voltage or current (non-inverter) |
| Frequency Range | Model 7110
DC, 15Hz~10KHz |
| Model 7120
DC, 15Hz~100KHz |
|
| Data Length | Dual 4096×16 RAM for voltage & current |
| ADC Resolution | 16 bits |
| Sampling Rate | AC 50Hz/60Hz basic sampling rate 100
KSPS /120 KSPS |
| Arithmetic Precision | Watt/VRMS/IRMS/MEAN/PF/Deg/Line filter 32bits |
| Frequency Filter | 500Hz cut off, digital chip filter based on
25MHz |
| Signal Filter | 500Hz-3db digital filter based on
Butterworth 50Hz-0.03% reading, 60Hz-0.05% reading |
| Frequency
Acquisition Mode |
Voltage / current 100MHz baseband
digital dynamic meter chip |
| Phase Lead Detection | Subject to the current, analog/digital
hybrid detecting (error less than 5 degrees) |
| RMS/MEAN Mode Voltage & Current Accuracy (23℃ ±5℃ ) | |
| >=15 Hz, f ≦ 45Hz | ±(0.1% of reading + 0.4% of range) |
| >45 Hz, ≦ 66 Hz | ±(0.1% of reading + 0.1 % of range) |
| >66 Hz, ≦ 1 kHz | ±(0.1% of reading + 0.2 % of range) |
| >1 kHz, ≦ 10 kHz | ±(0.07*f % of reading + 0.3% of range) |
| >10 kHz, ≦100 kHz | ±(0.5% of reading + 0.5% of range)
±[{0.04×(f–10)}% of reading] |
| Funit is 1KHz
When the L-FILTER sets as ON: 45Hz~66Hz frequency range allowable error-0.03 %~-0.05 of reading |
|
| When the AC is measured, if the fundamental frequency exceeds 200Hz, the F-Filter is required to be turned off in order to measure the most accurate
value
**When the frequency range is more than 10KHz, the 7120 starts to support |
|
| DC Mode Voltage & Current Accuracy (23℃ ±5℃ ) | |
| 10V~600V | ±0.2% reading ± 0.2% of range |
| 0.01A ~20A | ±{(0.2)% of reading + 0.2 % of range} ±offset |
| To add up the OFFSET errors of various files during measuring the DC
current |
|
| Power (W) Accuracy (23℃ ±5℃ ) | |
| AC power ranges (Auto or Manual)(40 ranges) range up to 16KW
Maximum Power (W) value is determined by the highest range of voltage profile |
|
| DC ±0.2% reading ± 0.5% of range
15 Hz≦f 66 Hz<f≦1 kHz ±(0.2% of reading + 0.2 % of range) 1 kHz<f≦10 kHz ±(0.4% of reading + 0.3 % of range)± [{0.06×(f)}% of reading] 10 kHz<f≦100 kHz ±(0.5 % of reading + 0.5 % of range)±[{0.09×(f–10)}% of reading] |
|
| Incidental Allowable Error Conditions | |
| Signal Filter Error (AC) | Frequency between 45-66Hz: Add 0.3% of
reading. |
| Frequency between45-66Hz: Add 1% of
reading beyond |
|
| Accuracy Effect of the Phase Error of the Power | |
| When the power factor PF is 0, the error range of Watt is Situation 1: for 45Hz < f, Add±1.0% of VA Situation 2: for 45Hz > f or f > 66Hz Add ±{(3.5 + 0.5×f )% of VA} for up to 100kHz as reference data The unit for frequency f is kHz. When the power factor is 0 < PF≦error range When 0 < PF 1 (θ: phase angle of the voltage and current) for 45Hz f 66Hz. Add ±power reading *{tan(θ)*(0.5)}% for f < 45Hz, f > 66Hz. Add ±power reading *{ tanθ*(0.5×f+0.2) }% |
|
| Error within 12 months | Add ±(0.5% of reading) |
| Model | Support Harmonics
7110-10k-HARM 7120-100k-HARM |
| Don’t Support Harmonics
7110-10k 7120-100k |
|
| F71201 TEST BOX | |
| Built-in stroage | 6 Sets |
| Power Supply | Voltage
100 ~ 240Vac |
| Frequency
50/60Hz |
|
| Power consumption | 300VA |
| Environment | Temperature
23℃±5℃ |
| Humidity
20%-80%RH |
|
| Display | Seven-segment display |
| Dimension (W*H*D) | 227x101x300 mm |
| Weight | 1.85 Kg |
| Interface | RS-232 (7110)、RS232 + GPIB (7120) |
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