TSI Quest EDGE EG-4P, Руководство пользователя

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Specifications A-5
Measurement Parameters and Specs
Exchange Rate
(ER) 3 dB, 4 dB, or 5 dB
Peak Range 110 dB to 143 dB
Peak Weighting C or Z weighting
Pulse Range @
Tolerance: 1 ms 4 kHz tone-burst: 53 dB @ ±1.5 dB
10 ms 4 kHz tone-burst: 53 dB @ ±0.7 dB
100 ms 4 kHz tone-burst: 53 dB @ ±0.7 dB
The shortest tone-burst is 1 ms, tone-bursts are
applied with continuous 70 dBA @ 1 kHz
Criterion Levels
(Lc) 70 to 90 dB in 1 dB increments
Criterion
Duration (Tc) /
Projected time
8 Hours, not adjustable in unit.
(Reference integration time)
Threshold Level
(Lt) 70 to 90 dB in 1 dB increments
Upper Limit
(UL) trigger The upper Limit is triggered at 141 dB. The delay
time is less than or equal to 1 second.
Upper Limit
Trigger
(minimum time) 1/32 sec, plus delay of time response. (F / S)
Integration time
duration Limits: At sound level (L) of 70 to 140 dB the Integration
period (t) is 1 sec. to over 10 Hours (@140 dB).
This spec is about size and resolution of internal
math functions to meet measurement standards
and does not limit runtime to 10 hours.
Reference
range: Not Applicable, unit is auto-ranging.
Reference
Sound
exposure 1
Pa^2∙h
Sound
Exposure range 0.01 to 9999.9 Pa^2
∙h
Sound
Exposure
Impulse
Tolerance The typical percentage deviations from the sound
exposure indicated, in response to positive-going
unipolar pulses and to negative-going unipolar
pulses is 0.63 %.
Noise Floor:
≤ 58 dBA
Microphone
input tests Microphone source coupling 6pF / 5.6 Vrms MAX
(Use BNC 6pF Input Adapter 053-759)
Microphone
Reference
Direction
The reference sound-wave direction is
perpendicular to the microphone face or 0 degrees
incidence angle.