General Tools and Instruments DSM8921 - Manual (Page 3)

FRONT PANEL DESCRIPTION
1 MICROPHONE
2 LCD DISPLAY
3 ON/OFF
4 REC
5
MAXHLD
6
C/A
7
BA MODE
8
F/S
9
DOWN
10
UPPER
11
DC 9V
12 CAL
13 AC OUT
14 DC OUT
15 RS232
16 BACKLIT
- Power button
- Records sound level
readings
- Freezes the maximum
sound level digital
reading
- A/C frequency
weighting selector
- Background noise
absorber
- Fast/Slow response
selector
- Adjusts the
measurement range
- Adjusts the
measurement range
- DC adapter jack
- Calibration screw
- AC analog output jack
- DC analog output jack
- RS-232 output jack
- Back light
(Model 8922 only)
The meter will display all segments
when it is first turned on. Though you
might seen SEL, Leq, DOSE, PEAK....
These are not available for the meter
you purchased, please contact the
store or the place you purchased for
further models with these additional
functions.