Castle group Sonus Range GA116E, Руководство по эксплуатации

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Page 75
Model ‘E’ Instruments
Test start point for frequencies 31.5Hz, 1kHz, 4kHz and 8kHz:
Display Range Start Point (dB)
20 – 90 dB 74.0
40 – 110 dB 94.0
60 – 130 dB 114.0
A Weighted
Display
Range
Frequency (Hz)
31.5
(dB)
1000
(dB)
4000
(dB)
8000
(dB)
20 – 90 dB 22.0 – 60.6 22.0 – 90.0 22.0 – 90.0 22.0 – 90.0
40 – 110 dB 40.0 – 80.6 40.0 – 110.0 40.0 – 110.0 40.0 – 109.0
60 – 130 dB 60.0 – 100.6 60.0 – 130.0 60.0 – 130.0 60.0 – 130.0
C Weighted
Display
Range
Frequency (Hz)
31.5
(dB)
1000
(dB)
4000
(dB)
8000
(dB)
20 – 90 dB 22.0 – 60.6 22.0 – 90.0 22.0 – 90.0 22.0 – 90.0
40 – 110 dB 40.0 – 80.6 40.0 – 110.0 40.0 – 110.0 40.0 – 109.0
60 – 130 dB 60.0 – 100.6 60.0 – 130.0 60.0 – 130.0 60.0 – 130.0
Z or LIN Weighted
Display
Range
Frequency (Hz)
31.5
(dB)
1000
(dB)
4000
(dB)
8000
(dB)
20 – 90 dB 24.0 – 60.6 24.0 – 90.0 24.0 – 90.0 24.0 – 90.0
40 – 110 dB 40.0 – 80.6 40.0 – 110.0 40.0 – 110.0 40.0 – 109.0
60 – 130 dB 60.0 – 100.6 60.0 – 130.0 60.0 – 130.0 60.0 – 130.0
If full verification of the level linearity of the 20-90 range is required then the
instrument should be set to the nominal sensitivity prior to testing.