二手音頻分析儀VA2230A現貨租售說明:二手Kenwood（建伍）VA2230A VA2230現貨現貨租售
·多功能，高精度，高速度，可遙控音頻分析儀
·此儀器綜合了低頻信號發生器、電子電壓表、失真表、頻率計、直流電壓表的功能于一身。*微處理器控制意味著可靠性更高，操作更簡便，將眾多的功能匯集在一個小型、高速、高精度的單元中，其價格比分立單元更具有競爭性。
·使用DSP技術，通過FFT計算獲得真RMS值
·使用DDS技術的高速、高穩定度信號發生器
·寬大的LCD提供了清晰精確的顯示
·配備GPIB接口
·為通訊應用提供了SINAD測量
·雙通道輸入/輸出可進行通道互擾、分離及L/R率測量
·頻率計及AC電平頻率范圍擴展至210KHz
·具THD的失真及諧波分析功能
·操作簡便，測試功能豐富
技術指標
·Signal Genreator for Measurement
·Frequency range.........5Hz to 20.09KHz（DDS system） | 20.1KHz to 110.0KHz（CR oscillator）
·Frequency setting resolution........1Hz（5Hz to 2.009KHz） | 10Hz（2.01KHz to 20.09KHz） | 100Hz（20.1KHz to 110.0KHz）
·Frequency accuracy........±0.005%（5Hz to 20.09KHz） | ±3%（20.1Khz to 110.0KHz）
·Display digits........4-digit max.
·Spot oscillator.1.........20Hz（±0.005%）
·Spot oscillator.2..........1KHz（±0.005%）
·Spot oscillaotr.3..........20KHz（±0.005%）
·Output channels.........2CH（L,R:Only common output）
·Output impedance........600Ω±2%（unbalanced）
·Output level resolution.......0.1dB
·Output level accuracy........Ω±0.5dB of set value（>-40dBv） | ±0.8dB of set value（≦-40dBV） 1KHz,600Ω load
·Spot oscillator.1..........20Hz（0.001%THD+N,80KBW）
·Spot oscillator.2........1KHz（0.001%THD+N,80KBW）
·Spot oscillator.3............20KHz（0.001%THD,80KBW）
·Measurement function block
·Frequency measurement,AC level measurement（relative display/wattage display）,DC level measurement,total distortion measuremetn（THD+N）,harmonic distortion measuremtn（THD）,harmonic analysis measurement（HD）,SINAD measurement,S/N measurement,ratio measruemtn（R/L,L/R）.
·
·Measuring range......5Hz to 210KHz
·Measurement resolution...........5-digit（≧100Hz）/0.01Hz（<100Hz）
·Measuring accuracy..........±5*10^-4±1digit
·Input level range......1mV to 100Vrms
·
| Measuring range....... | V（mV） | dBV | dBm | |
| | 100V | 40.0dBV | 42.2dBm | |
| | 30V | 29.5dBV | 31.7dVm | |
| | 10V | 20.0dBV | 22.2dBm | |
| | 3V | 9.5dBV | 11.7dBm | |
| | 1V | 0.0dBV | 2.2dBm | |
| | 300mV | -10.5dBV | -7.8dBm | |
| | 100mV | -20.0dBV | -17.8dBm | |
| | 30mV | -30.5dBV | -27.8dBm | |
| | 10mV | -40.0dBV | -37.8dBm | |
| | 3mV | -50.5dBV | -47.8dBm | |
| | 1mV | -60.0dBV | -57.8dBm | |
| | 0.3mV | -70.5dBV | -67.8dBm | |
| Measuring accuracy.............. | ±2%of full-scale indication（1KHz） | |||
| Frequency response........ | ±5%（20Hzto 20KHz） reference:1KHz ±10%（5Hz to 110KHz）reference:1KHz ±20%（5Hz to210KHz） reference:1KHz | |||
| Vestigial noise............ | ≦4μV（80KBW） | |||
| Response characteristics.... | actual value | |||
| Relative measurement range..... | 0 to±130dB | |||
| Wattage display...... | Powercalculation based on AC level measurement and virtual load（RL） | |||
| Resolution of watt display. | 5digits max. | |||
| Setting range of RL.... | 2 to 5000Ω | |||
| | | |||
| Input channel...... | 1CH:for DC input | |||
| Input impedance | 1MΩ | |||
| DClevel measuring ranges.. | 5 ranges（100V/30V/3V/300mV/30mV） | |||
| DC level emasuring accuracy | ±（0.3%fs+0.75%of measuring value） | |||
| | ||||
| Fundamental frequencyrange | 10Hz to 110KHz | |||
| Distortionmeasurement range | * | 0.0dB | ||
| | 30% | -10.5dB | ||
| | 10% | -20.0dB | ||
| | 3% | -30.5dB | ||
| | 1% | -40.0dB | ||
| | 0.3% | -50.5dB | ||
| | 0.1% | -60.0dB | ||
| | 0.03% | -70.5dB | ||
| | 0.01% | -80.0dB | ||
| Secondary harmonic deviation.... | ±1dB（20Hzto 20KHz） | |||
| | ±3dB（all range） | |||
| Fundamental wave removal ratio.. | 110dBor more | |||
| | 60dB（NOTCH）+ - 50dB（FET） | |||
| Response characteristics | | |||
| （input）......... | actual value | |||
| Response charateristics | | |||
| （distortion）.... | actualvalue | |||
| Input level range..... | 1mVto 100V | |||
| Input ranges..... | V（mV） | dBV | dBm | |
| | 100V | 40.0dBV | 42.2dBm | |
| | 30V | 29.5dBV | 31.7dBm | |
| | 10V | 20.0dBV | 22.2dBm | |
| | 3V | 9.5dBV | 11.7dBm | |
| | 1V | 0.0dBV | 2.2dBm | |
| | 300mV | -10.5dBV | -7.8dBm | |
| | 100mV | -20.0dBV | -17.8dBm | |
| | 30mV | 30.5dBV | -27.8dBm | |
| | 10mV | -40.0dBV | -37.8dBm | |
| | 3mV | -50.5dBV | -47.8dBm | |
| | （30mV to 3mV ranges:manual only） | |||
| Display units..... | Input level:V,dBV,dBm | |||
| | Distortion:%,dB | |||
| | | |||
| Measuringmode.. | harmonic distortion+noise（THD+N） | |||
| Residualnoise/distortion | | |||
| （100V,30V,10V,3V&1Vranges）.. | ≦-94dB（10Hz to 20KHz,80KBW） | |||
| | ≦-80dB（alllimits,500KBW） | |||
| | input≧1/3 offull scale | |||
| （300mV range）...... | ≦-86dB（10Hzto 20KHz,80KBW） | |||
| | ≦-66dB（alllimits,500KBW） | |||
| | input≧1/3 offull scale | |||
| （100mV range）..... | ≦-74dB（10Hzto 20Khz,80KBW） | |||
| | ≦-60dB（allilmits,500KBW） | |||
| | input≧1/3 offull scale | |||
| （3mV range）...... | ≦-45dB（10Hzto 10KHz,20KBW） | |||
| | input+2mVrms | |||
| | ||||
| Measuringmode..... | Nos.2-10 harmonic waves are detected and measured | |||
| Residual noise/distortion | | |||
| （100V,30V,10V,3V&1V range）... | ≦-100dB（10Hzto 20Khz,80KBW） | |||
| | ≦-80dB（alllimits,500KBW） | |||
| | input≧1/3 offull scale | |||
| （300mV range）..... | ≦-94dB（10Hzto 20KHz,80KBW） | |||
| | ≦-74dB（alllimits,500KBW） | |||
| | input≧1/3 offull scale | |||
| （100mV range）........ | ≦-86dB（10Hzto 20KHz,80KBW） | |||
| | ≦-74dB（alllimits,500KBW） | |||
| | input≧1/3 offull scale | |||
| | | |||
| Measuring mode..... | Nos.2-10 harmonicwaves are set to any value and measured Residual | |||
| | | |||
| SINAD measuringrange..... | 0 to 40dB（1 range） | |||
| ResidualSINAD....... | Same as | |||
| | | |||
| Input levl...... | 30μV to 100Vrms | |||
| | （both S component&N component） | |||
| Measuring range...... | 0 to 130dB（80KHzBW） | |||
| S/N accuracy........ | ±1.2dB | |||
| Response characteristics..... | actualvalue | |||
| | | |||
| Input level ragne..... | 30μV to 100Vrms（bothnumerator and denominator） | |||
| Ratio range....... | 0to ±130dB（80KHzBW_ | |||
| Ratio accuracy......... | ±1.2dB（1KHz,fullscale input） | |||
| Frequency response...... | ±2dB（standard:1KHz） | |||
| Display unit...... | dB,% | |||
| Response characteristics... | actual value | |||
| | ||||
| Input channels...... | AC input:2 CHs,alternate（Balanced and unbalanced switchable） | |||
| Input impedace...... | ACinput:10KΩ,100KΩ≦200pF | |||
| Maximum allowable input.... | 150V（DC+AC peak） | |||
| Grounding...... | Floatingand non-floating switchable（independently for DC,AC and signal generator） | |||
| Averaging count..... | 2,4,8,16,OFF | |||
| Built-in filters...... | HPF（100Hz/200Hz/Optional）,LPF（15KHz/20KHz/80KHz/Optional）,PSOPHO（IHF-A/CCIR-ARM/DIN-AUDIO/Optional） | |||
| Optional filters...... | 3KHz BPF/1KHzBPF/315Hz BPF/CCITT P53/C-MESSAGE/IEC-C | |||
| | | |||
| | | |||
| Operation specifications... | 1）Single Up;2）Single Down; | |||
| | 3）RepeatUp;4）Repeat Down | |||
| .... | SH1,AH1,T8,L4,SR0,RL1,PP0,DC1,DT1,C1,C2,C3,C27 | |||
| | 1）Panel staus;2）Measurement value output;3）Memorycopy（between same models）;4）Memory synchronization（between same models,same versions） | |||
| ... | 1） Levelor frequency setting from an external rotary encoder;2）Direct memory call;3）Controloutput;4）Limit judgment output;5）Memory listing;6）8-bit data read;7）Measurementdata print-out. | |||
| | | |||
| Memory point count... | 100 steps（Can bedivided into 10 groups.） | |||
| Setting contents... | 1）Panelsetting;2）EXT CONTROL I/O; | |||
| | 3）Limitdata batch memory. | |||
| | ||||
| Temperature/humidity for operation.... | 0to 40℃,RC 90% max. | |||
| Tempearture/ humidity for characte- ristics in spec. | 6 to 35℃,RC 85% max. | |||
| LCD Tempearture /humidity for operation.... | 0to 30℃,RC 90% max. | |||
| | 0 to 40℃,RH60%max. | |||
| Power source..... | 100/120/220/240VAC,±10%（max.250V）/Approx.48W | |||
| Dimensions..... | 426（W）*99（H）*440（D）mm | |||
| Weight.... | Approx.10kg | |||
| Accessories.... | Instruction manual（1）,cable（1）,powercord（1） | |||
深圳市漢潤電子有限公司 李川
