Castle group Sonus Range GA116E, Operating Manual

Page: 95 / 154

Page 76
Model ‘I’ & ‘B’ Instruments
Test start point for frequencies 31.5Hz, 1kHz, 4kHz and 8kHz:
Display Range Start Point (dB)
35 – 100 dB 74.0
55 – 120 dB 94.0
75 – 140 dB 114.0
A Weighted
Display
Range
Frequency (Hz)
31.5
(dB)
1000
(dB)
4000
(dB)
8000
(dB)
35 – 100 dB 41.0 – 60.6 41.0 – 100.0 41.0 – 100.0 41.0 – 100.0
55 – 120 dB 55.0 – 80.6 55.0 – 120.0 55.0 – 120.0 55.0 – 119.0
75 – 140 dB 75.0 – 100.6 75.0 – 140.0 75.0 – 140.0 75.0 – 140.0
C Weighted
Display
Range
Frequency (Hz)
31.5
(dB)
1000
(dB)
4000
(dB)
8000
(dB)
35 – 100 dB 41.0 – 60.6 41.0 – 100.0 41.0 – 100.0 41.0 – 100.0
55 – 120 dB 55.0 – 80.6 55.0 – 120.0 55.0 – 120.0 55.0 – 119.0
75 – 140 dB 75.0 – 100.6 75.0 – 140.0 75.0 – 140.0 75.0 – 140.0
For the GA257B instrument refer only to the display range 75-140dB.