供应二手VA2230A音频分析仪

（深圳）李川  深圳市汉润电子有限公司 ·
多功能，高精度，高速度，可遥控音频分析仪·此仪器综合了低频信号发生器、电子电压表、失真表、频率计、直流电压表的功能于一身。中央微处理器控制意味着可靠性更高，操作更简便，将众多的功能汇集在一个小型、高速、高精度的单元中，其价格比分立单元更具有竞争性。 ·使用dsp技术，通过fft计算获得真rms值 ·使用dds技术的高速、高稳定度信号发生器 ·宽大的lcd提供了清晰精确的显示 ·配备gpib接口 ·为通讯应用提供了sinad测量·双通道输入/输出可进行通道互扰、分离及l/r率测量 ·频率计及ac电平频率范围扩展至210khz ·具thd的失真及谐波分析功能 ·操作简便，测试功能丰富 技术指标 ·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 to20.09khz) | ±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 distortionmeasuremtn(thd),harmonic analysis measurement(hd),sinad measurement,s/n measurement,ratio measruemtn(r/l,l/r). · ·measuring range......5hz to 210khz ·measurementresolution...........5-digit(≧100hz)/0.01hz(
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)
frequencyresponse........ ±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 emasuringaccuracy ±(0.3%fs+0.75%of measuring value)
fundamental frequencyrange 10hz to 110khz
distortionmeasurement range 100% 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)
responsecharacteristics
(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 andmeasured residual
sinad measuringrange..... 0 to 40db(1 range)
residualsinad....... same as
input levl...... 30μv to 100vrms
(both s component&n component)
measuringrange...... 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_
ratioaccuracy......... ±1.2db(1khz,fullscale input)
frequency response...... ±2db(standard:1khz)
display unit...... db,%
response characteristics... actual value
inputchannels...... 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-infilters...... 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 p53tel/c-message/iec-c
operationspecifications... 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 judgmentoutput;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)
另有vp7723a vp7723b vp7723d hp8903b va2230  深圳市汉润电子有限公司 （深圳）

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深圳市汉润电子有限公司销售一部
李川
13510351836
深圳市福田区上步中路深勘大厦613-616

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