Casella CEL CEL-281 - Manual (Page 16)

4. Press the key once.
5. If some other value than 3 is shown at "Q=?", press the
key enough times to obtain "Q=3".
The main display now indicates Leq, (A-weighted L )8/ with
Q=3) and if the instrument contains stored data or is logging
data, a level will be given.
6. Press the key a second time.
The main display now shows A-weighted Slow Max.
7. Press the key a third time.
The main display now shows A-weighted Slow SPL.
8. Press the key a fourth time.
The main display now shows A-weighted Fast Max.
1.6 Read Pa
2
h
With the CEL-281 switched ON, the keypad installed:
1. Press the key once.
2. If Pa h is not shown to the right of the main display, press the
key again to obtain it.
Page 8 - CEL-281 Operator's Handbook
Getting Started_