CESVA DC112 - 8 Appendix B: Conditions of Verification; Verification Procedures; Verification in Units of Sound Exposure (Pa²H)

DC112d/DC112
User’s manual
37
8. Appendix B: Conditions of verification
Below are the conditions of verification recommended by
.
8.1 Verification procedures
, as manufacturer, recommends two alternatives for the verification of the
DC112:
- Verification in units of sound exposure (Pa²h)
- Verification in units of equivalent sound level (Leq)
8.1.1 Verification in units of sound exposure (Pa²h)
CHARACTERISTICS OF THE DOSIMETER:
Resolution (Pa
2
h): 0,000001
L max (dB): 140,0
E max (Pa
2
h): 9999,999
1. LINEARITY OF THE RESPONSE TO STEADY SIGNALS
f (Hz) L
A
(dB) t (s) E (Pa²h) Tolerance
1000 100 8 0,008889 -21% +26%
1000 110 4 0,044444 -21% +26%
1000 120 2 0,222222 -21% +26%
1000 130 1 1,111111 -21% +26%
1000 130 2 2,222222 -21% +26%
1000 140 6 66,66667 -21% +26%
1000 140 30 333,3333 -21% +26%
1000 140 144 (2m 24s) 1600,000 -21% +26%
1000 140 720 (12m) 8000,000 -21% +26%
f (Hz) L
A
(dB) t (s) E (Pa²h) Tolerance
63 93,8 1 0,000267 -21% +26%
63 103,8 1 0,002665 ref ref
63 113,8 1 0,026654 -21% +26%
f (Hz) L
A
(dB) t (s) E (Pa²h) Tolerance
8000 88,9 1 0,000086 -21% +26%
8000 98,9 1 0,000862 -21% +26%
8000 108,9 1 0,008625 ref ref