Casella CEL CEL-281 - Manual (Page 42)

RUN Either: the instrument is waiting to pass the
next full minute of time before starting to log
data, as described in Section 3.3.4.
Or: the instrument is logging data.
DATE Either: Display is showing date information in
dd:mm:yy format (dd = day, mm = month, yy
= year),
Or: Display is showing measurement start and
stop dates in nn:mm:dd format, where nn is
a store identity number between 1 and 20,
odd numbers show start dates and even
numbers show stop dates (Section 3.3.9).
%DOSE Display is showing noise dose levels.
P%DOSE Display is showing projected noise dose levels.
Pa
2
h Display is showing sound exposure levels.
dB Display is showing a criterion or threshold level.
dBA Display is showing A-weighted noise levels.
dBC Display is showing C-weighted noise levels.
Thr Threshold level of currently displayed para-
meter: 70, 75, 80, 85, 90 dB.
Cri Criterion level of currently displayed parameter:
70, 75, 80, 84, 85, 90 dB.
. : . : . Measured parameter level or setting value
selected for display.
How It Works
Page 34 - CEL-281 Operator's Handbook