Casella CEL CEL-440 - Manual (Page 11)

The instrument starts a series of self tests during which it
indicates the instrument type, firmware version, preamplifier
type and interface status.
At the end of the self test sequence, the instrument displays
memory information and battery voltage,
followed by the identity of the last used setup.
Finally it enters calibration check mode (described in Chapter 2).
2. Press to switch the instrument OFF when all measurement,
setup and data recall operations are finished.
1.5 Description
Both the CEL-440 and CEL-480 Sound Level Meters are available as
Type 1 or Type 2 instruments to give an ability to make comprehensive
512Kb
13Jan98 1Ø:54:42
1%
2
Format
Memory
Full
Runs
p-02
Current date and time
Last used setup
(Not shown before V 2.0 firm-
Setup
Press MENU
User Setup 1
Key to Start
p-03
Date and time of last calibration
p-04
dB
Ø9Jan98 12.22
Last Cal.
L
ZF
Introduction
CEL-440/480 Operators Handbook - Page 11