Svantek SV 977D - Measurement Parameters

148
SV 977D User Manual
SD
Standard deviation. Calculated on the basis of 100ms
RMS results.
Appendix D
D.1.2
NR
Noise Rating, measured noise level that takes into
account the frequency content of the noise.
NR is calculated if 1/1 Octave function is active.
Appendix D
D.1.2
NC
Noise Criterion, measured noise level that takes into
account the frequency content of the noise.
NC is calculated if 1/1 Octave function is active.
Appendix D
D.1.2
LRxx
Rolling Leq - Leq for the window of the last xx
seconds/minutes of the measurement moving with 1
second step.
Appendix D
D.1.2
P–P
Peak-to-peak, the difference between highest and lowest
value of the signal within the elapsed measurement time.
Appendix D
D.2.2
RMS
Root Mean Square result of the time-weighted vibration
(acceleration, velocity or displacement) level within the
elapsed measurement time.
Appendix D
D.2.2
18.4 MEASUREMENT PARAMETERS
Position
Description
Screen
Reference
Measurement
Section of the Main Menu that enables selecting the
measurement parameters in the screens: General
Settings, Measurement Trigger, Profiles, Logging,
Spectrum, FFT, RT60 Settings, Tonality, Compensation,
Range, RPM Measurement, Exposure Time, Statistical
Levels, Timer and Alarms.
Chapter
4
General Settings
General measurement settings: Start Delay, Start Sync.,
Integration Period Inf., Integration Period, Repetition
Cycles, RMS Integration, Day Time Limits and
Rolling Time.
Chapter
4.1