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TDM-1911, Distortion / Level Meter
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tdm-1911 distortion  level meter.jpgThe meter can speedily measure 400Hz/1KHz distortion(0.01%) and 20Hz to 100KHz level to 100KHz level with push button operation. As an automatic distortion meter, this model is ideal for adjustments and inspection on the mass production lines of radio, tape recorders and other audio products. The distortion and level are indicated simultaneously on two meters. The fundamental frequency rejection circuit for the distortion measurement  employs a filter with a wide rejection range to enable the accurate measurement of the distortion even with signals containing wow/flutter such as those supplied from tape recorders, record players and other equipment.

Specifications:
DISTORTION MEASUREMENT
Range: 0.01% to 30%
0.1/0.3/1/3/10/30% of Full Scale
Frequency Range :
400Hz ± 10%. 1000Hz ± 10%
Input Level Range :
100mV to 100V
Ratio Measuring Range:
20dB
Automatic Switching Range of Frequency:
Fundamental Frequency (fo) ± 10%
Fundamental Rejection:
>-80dB at fo±5%
>-70dB at fo±10%
Harmonic Accuracy:
±0.5dB Between 1.8 fo and 20KHz
Accuracy :
5% of full scale
Monitor Output:
1 Vrms (at full scale)/ 47KOhm

LEVEL MEASUREMENT

Measurment Range :
100mV to 100V
0.1/0.3/1/3/10/30/100V of full scale
Frequency Response:
±0.5dB Between 20Hz to 50KHz
±1dB Between 20Hz to100 KHz
Input Impedance:
100KOhm±5% Unbalance < 70pF
Accuracy:
± 3% fo full scale
Power Supply:
AC 110/220± 10% 50/60Hz approx 10VA



       
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