Characteristic Specifications Supplemental Information
APx511 B Series Hearing Instrument Analyzer: Specifications 25
Max Output Current
speaker output current limit typically
1.5 A peak min
ANALOG ANALYZER
Number of Channels
1 auto-ranging. Max ADC sample rate = 192 kS/s
Maximum Rated Input
48 V pp, 24 V dc
Input Impedance
Unbalanced 100 k || 230 pF to BNC shield BNC shield to instrument chassis
ground.
Input Coupling
AC Typically <0.5 dB roll-off at 20 Hz
Input Ranges
250 mV rms to 80 V rms, 10 dB steps
Level (Amplitude) Measurement
Microphone Input
Range < 1 µV to 16.9 Vrms
Accuracy (1 kHz) ±0.05 dB [±0.60 %]
Flatness (1 kHz ref)
100 Hz to 10 kHz ±0.05 dB
10 kHz to 20 kHz ±0.1 dB
Speaker Voltage
Range < 1 µV to 5.7 Vrms Limited by speaker amplifier output
Accuracy (1 kHz) ±0.05 dB [±0.60 %] Open circuit with no load applied
Flatness (1 kHz ref)
100 Hz to 10 kHz ±0.05 dB 8 load
10 kHz to 20 kHz ±0.1 dB
Telecoil Input
Range < 1 µA to 110 mA rms Limited by telecoil output
Accuracy (1 kHz) ±0.1 dB [±1.0 %] With 1 load applied
Flatness (1 kHz ref)
10 Hz to 10 kHz ±0.05 dB With 1 load applied
10 kHz to 20 kHz ±0.1 dB
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