natus Madsen A450, Руководство пользователя

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Sound attenuation values for earphones and headphones
1600 21 34
2000 26 33
2500 28 35
3000 N/A N/A
3150 31 37
4000 32 40
5000 29 41
6000 N/A N/A
6300 26 42
8000 24 43
ISO 4869-1:1994
Outputs
AC: 2 x 2 mono jacks, 6.3 mm (1/4 inch)
BC: 1 x mono jack, 6.3 mm (1/4 inch)
Speaker for SF power output and Coun-
seling and Simulations: 3 x terminals,
3 x 40 W peak, 8
Ω
load
SF line output: 2 x 1.6 Vrms,
External inputs
CD/Analog line in:
0.2 to 2.0 Vrms, 10 k
Ω
, 1 stereo 3.5 mm (1/8 inch) jack
Talk Back microphone: • Electret microphone
• Input voltage: 0.002 to 0.02 Vrms
• Input resistance: 2.21 k
Ω
.
• 3.5 mm (1/8 inch) jack
24V DC power supply: • DC power, 2.5 mm
Stimulus presentation
Normal: The signal is presented when the Stimulus Presentation button is activated.
Continuous ON: The signal is interrupted when the Stimulus Presentation button is activated.
Pulse: The signal is pulsed.
Pulse duration: 200 ms on and 200 ms off configurable
28 Madsen A450
16 Technical specifications