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Sennheiser Set 820 S User Manual

Page 46

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20

Charging time (spare battery)

approx. 10-12 h

Power supply

12 V DC via NT 820 mains unit

Weight

approx. 94 g (without battery)

Dimensions

diameter: 150 mm, height: 47 mm

Receiver
AF frequency response

40 Hz ....... 15 kHz

S/N ratio

60 dB A rms

Power supply

2.4 V via BA 151 battery

Operating time

approx. 4 hours per battery

Weight

approx. 35 g (without battery)

Dimensions

length: 95 mm, width: 63 mm, height: 35 mm

Output voltage

max. 700 mV at 32

Ω

Induction loop
AF frequency response

300 ....... 10,000 Hz

Impedance 47

Ω

Magnetic field strength
at the hearing aid

100 mA/m at 1 kHz and 10 mVA

Guarantee

2 years

Set 820 S_511981_0106_Sp7.book Seite 20 Freitag, 9. Januar 2009 8:23 08