User manual

APPENDIX B
Measurement Parameters
261
Minimum Time-weighted Sound Levels
•L
XFmin
•L
XSmin
•L
XImin
•L
YFmin
•L
YSmin
•L
YImin
US Occupational Health Parameters
•L
avRQ
Special Parameters
•L
XIeq
(also called L
XIm
)
•L
YIeq
•L
AIeq
–L
Aeq
•L
AFTeq
(also called L
AFTm5
)
•L
AFTeq
–L
Aeq
• SIL (average of L
Zeq
octave band levels: 500 Hz, 1000 Hz, 2000 Hz and 4000 Hz)
*
• PSIL (average of L
Zeq
octave band levels: 500 Hz, 1000 Hz and 2000 Hz)
*
• SIL3 (average of L
Zeq
octave band levels: 1000 Hz, 2000 Hz and 4000 Hz)
*
•L
Weq
(f1 – f2) (sum of power values for L
Weq
frequency bands from f1 Hz to f2 Hz)
*
Voltage updated at approx. 5 s intervals and logged with Logging Period intervals
• Trig. Input Voltage (requires Trigger Input is set to Voltage for Monitoring)
The following parameters are available per set of logged parameters
• Overload in %
•Start time (common to both channels in 2-channel templates)
•Stop Time (common to both channels in 2-channel templates)
• Elapsed Time (excl. pauses; common to both channels in 2-channel templates)
The Statistics can be logged to calculate Percentile Levels and Std.Dev. per logging interval.
Low-frequency Parameters (requires Low Frequency Option BZ-7234)
•L
Geq
•L
G10max
•L
G10min
•L
Gpeak
*. These parameters require license for BZ-7223 and measurement of spectra.