Casella CEL CEL-414 User Manual
Page 12
L
40+
920002
Pause Reset
CAL
Function
Range
OFF
BAT
ON
80
50
20
P
I
F
S
A
C
FA
FL
SEL__EVENT 1SM
BAT
PSE
LT3
LT5
BAT
PSE
OSH
DOD
LEQ
SPL
MAX
DUR
DATUM
5 10 15 20 25
A, B &
Version
CEL-493/3
Key Line
Black
Function Step (Counter-clockwise)
P-I-F-S (Time Weighting Switch)
Auxiliary Socket
Digital Display
Analog Display
CEL- 192 Microphone (Type 1)
Pause (not CEL-414/3)
Parameter Reset
Calibration Potentiometer
Battery Compartment
CEL-225/3 Preamplifier
(Type 1)
CEL-230 Microphone/
Preamplifier Unit (Type 2)
Function Step (Clockwise)
(not CEL-414/3)
A-C-FA-FL (C, D & E versions)
A-L-FA-FL (A & B versions)
(Frequency Weighting Switch)
80-50-20 (Range Switch)
(Hi-Med-Lo on CEL-493/3)
SEL__EVENT 1SM
(Octave Centre Frequencies
on CEL-266/3 & CEL-328/3)
(not CEL266/3 or CEL-328/3)
Filter Attachment Insert
On-Bat-Off (Power Switch)
Sets SEL Threshold Level &
Onset Time on CEL-493/3
C, D & E
Version
Sets Threshold Level for
L
L
on C & D versions
OSHA
DOD
Figure 2: Front panel & instrument
controls
Page 8 - General CEL Sound Level Meters Handbook