Powerfix PKG 82 A1 - Handbuch (Seite 17)

14 PKG 82 A1
GB
IE
Technical data
Dimensions (W x H x D) 14,5 x 18 x 10 cm
Weight (excl. accessories) approx. 300 g
Operating temperature +5 - +45 °C
Humidity (no condensation) 5 - 90 %
Power supply:
Battery 2 x 1.5 V Typ AA/Mignon/LR6
(supplied)
Frequency range Radio (VHF) 87.5 - 108 MHz
Operating time (average) approx. 48 h
Broadband voltage identifi er > 75 mV
Frequency response 20 Hz - 20 kHz
Impedance 32 Ohm ± 10 %
Sound volume in the capsules max. 82 dB(A) ± 5%
Material in sealing cushions PVC
Material in headband PVC
Size range of the Circumaural Ear
Protectors
Small, Medium and Large
Insulation values as per EN 24869-1:
Frequency (Hz) 63 125 250 500 1000 2000 4000 8000
Mf (dB) 17.0 14.9 21.5 26.6 33.5 29.7 33.1 32.2
sf (dB) 4.4 2.2 1.8 2.6 2.3 3.3 3.0 6.0
Mf-sf (dB) 12.6 12.7 19.7 24.0 31.2 26.4 30.1 26.2
SNR = 28 dB H = 28 dB M = 26 dB L = 20 dB
Clarifi cation:
Mf =
Middle insulation value
sf = Standard deviation
H = Insulation value at high frequencies (assumed sound insulation for sound with
LC-LA =-2dB)
M = Insulation value at medium frequencies (assumed sound insulation for sound
with LC-LA = +2 dB)
L = Insulation value at low frequencies (assumed sound insulation for sound with
LC-LA = +10 dB)
SNR = Single Number Rating (this value is calculated from the measured C-weighted
noise levels LC and is used to estimate the eff ective A-weighted sound level
in the ear).
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