Ⅵ
Ⅵ
Ⅵ
Ⅵ
. CONTROLS AND FUNCTIONS
Ov
Un
Ov
Un
1. Microphone : Electret condenser microphone
2. Display
3.
Key : Turns the meter on and off.
4. A, C keys : Sets the frequency weighting to A or C.
5. FAST, SLOW keys : Sets the time weighting to FAST or SLOW.
-6-
6. MAX key :
This key is used for reading the measurement results.
Press MAX key to select maximum, minimum or current
readings with elapsed time.
Use to tests of time weighting characteristics Fast and Slow.
Press MAX key 5 seconds, the “max” symbol flash enter to
maximum hold, press again to exit the mode.
7. MEM key : Press to store measurement data sets in memory.
8. READ key : Press to read the stored data sets in memory,
press again to exit read mode.
9.
▲
▲
▲
▲
▼
▼
▼
▼
keys :
Level range keys : select the level range for the
measurement. The following six settings are available : 20
to 80, 30 to 90, 40 to 100, 50 to 110, 60 to 120, 70 to 130.
When read mode, the keys select the memory address to
be displayed.
10. DC/AC output : AC signal with frequency weighting.
DC signal corresponding to sound level.
11. External DC 9V power supply jack : AC adaptor connected
here for powering the unit from on AC outlet.
12. CAL potentiometer : Calibration control, For level
calibration adjustment.
13. Battery Cover.
14. Tripod mounting thread.
15. Windscreen : When making outdoor measurement in
windy weather or when measuring air conditioning
equipment or similar, wind noise at the microphone can
cause measurement errors.
-7-
