Casella CEL CEL-393 - Manual (Page 90)

Functions
Current Period SPL, L eq , L tm3 , L tm5 , L max , and three L n values
(for example L 10 , L 50 and L 90 ).
Memory Profile Mode
One to four minutes L eq based parameter per period to provide pro-
files for up to approx. 720 periods (approx. 499 periods on B
version).
Environmental. Mode
Periods from 5 to 999 minutes may be selected and for each,
results of L
eq , L tm3 , L tm5 , L max , L 10 , L 50 & L 90 are calculated.
Maximum number of periods approx. 90. (approx. 60 periods
on B version)
Event Mode
Up to approx. 180 events stored on A version, defined on a
threshold basis (20dB scale deflection) with time of oc-
curence, duration, SEL and L
max values. (approx. 119 periods
on B version)
Analyser
Approx. 35 octave or approx. 15 third octave (or combination)
analyses along with all-pass and sweep start time.
Attenuator Range
10dB steps 10 - 90dB. 60dB auto ranging on bar graph.
Frequency Range
5Hz - 25kHz Linear or A- weighted for A and C versions.
5Hz - 20kHz Linear or A-weighted for B and D versions.
/86. 393 Handbook