Operating instructions

GENERAL INFORMATION
1-9
Audio analyzer
Audio Voltmeter
Input Impedance Nominally 1 MΩ in parallel with 40 pF
Frequency Range DC and 20 Hz to 50 kHz
AC only 20 Hz to 50 kHz
Polarized DC (below 1 Hz)
Maximum Input Voltage 30 V RMS, 50 V DC
Level Ranges 0-100 mV to 0-100 V RMS in a 1,3,10 sequence
Resolution 1 mV or 1% of reading
Indication 3 digits and barchart
Accuracy (AC) ±3% ±3 mV ± resolution up to 30 V RMS
Accuracy (DC) ±1% +50 mV up to 40 V
Audio Frequency Meter
Frequency Range 20 Hz to 50 kHz
Resolution 0.1 Hz, less than 10 kHz
1 Hz, at 10 kHz and above
Indication 5 digits
Accuracy As frequency standard ± 1 digit ± resolution
Sensitivity 50 mV
Audio SINAD Meter
Frequency 1 kHz (additional frequencies available with Option 29)
Range 0 to 18 dB and 0 to 50 dB
Resolution 0.1 dB
Indication 3 digits and barcharts
Accuracy ± 1 dB
Sensitivity 50 mV (100 mV for 40 dB SINAD). Reading suppressed if audio
voltage is less than 5 mV.
Audio Distortion Meter
Frequency 1 kHz (additional frequencies available with Option 29)
Range 0 to 10 % and 0 to 30 %
Resolution 0.1 % distortion
Indication 3 digits and barcharts
Accuracy ± 1 dB of reading ± 0.5 % distortion
Sensitivity 50 mV (100 mV for 1 % distortion). Reading suppressed if audio
voltage is less than 5 mV.
Audio S/N Meter
Range 0 to 30 dB and 0 to 100 dB
Resolution 0.1 dB
Indication 3 digits and barchart
Accuracy ± 1 dB
Sensitivity 50 mV (100 mV for 40 dB S/N). Reading suppressed if audio
voltage is less than 5 mV.