Svantek SVAN 977A - Page 125

125
SVAN 977A User Manual
Detector
Exponential RMS detector time constant applied in the
profile:
- Impulse, Fast or Slow for sound results like Leq, Lmax,
Lmin, SEL, LEPd, Lden, Spl, Ltm3 and LTeq;
- from 100ms to 10s for vibration results like RMS, MAX.
Chapter
5.3
Appendix D
D.1.2
Compensation
Filter
Digital filter that compensates some effect: Free Field,
Diffuse Field, Outdoor Environment, Outdoor Airport and
Windscreen.
Chapter
5.6
Free Field
Digital filter that compensates the free field effect.
Chapter
5.6
Diffuse Field
Digital filter that compensates the diffuse field effect.
Chapter
5.6
Outdoor
Environment
Digital filter that compensates the effect of the SA 277
outdoor microphone protection unit in the free field for the
reference acoustic wave incidence angle 90 deg.
Chapter
5.6
Outdoor Airport
Digital filter that compensates the effect of the SA 277
outdoor microphone protection unit in the free field for the
reference acoustic wave incidence angle 0 deg.
Chapter
5.6
Windscreen
Digital filter that compensates the effect of the SA 22
windscreen when Free Field or Diffuse Field options are
selected.
Chapter
5.6
Range
Position that enables selecting the linear operating range
for the sinusoidal signal: Low or High. The calibration
factor is always added to the upper range limits.
The ranges depend on the selected Compensation Filter.
Chapter
5.7
Low
Low linear operating range for the sinusoidal signal.
The calibration factor is always added to the upper range
limit.
The range depends on the selected Compensation Filter.
Chapter
5.7
Appendix C