CESVA LRF-04 Manual Del Usuario página 40

EXTERNAL DISPLAY (optional)
DL-3E external LEDs display: indicates, in real time, the sound pressure level in
dBA and the LRF-04 attenuation in dB. The display updates every 2 seconds.
Display DL100 (61x32x8 cm)
ATTENUATOR
Range of attenuation:
Penalisation attenuation:
Typical attenuation error:
Maximum attenuation error (0 - 50 dB):
SENSOR
Measurement range:
Frequency range:
OCTAVE FILTERS:
IEC-1260 (1995) standardised type 1 octave filters.
Frequency [Hz]
ISO-266 (1975) recommended central frequencies:
The frequency margin comprises the octave bands recommended for the
description of sound insulation of buildings (preferential frequencies: 125, 250,
500, 1000, 2000 and 4000 Hz).
STANDARDS
instruments as an electric or electronic equipment manufacturer informs
you that the product you have purchased has been put on the market later than 13
August 2005 and complies with 2002/96/CE and 2003/108/CE directives about Waste
from Electrical and Electronic Equipment (WEEE).
Also, the product is marked with the following symbol, which indicates that
this one is subjected to separate collection.
31.5 63 125
38
from 60 to 120
20 to 20,000
250 500 1000 2000 4000 8000
0 - 50 dB
60 dB
0 dB
1 dB
dB
Hz