Galaxy Audio CM-130 Instruction Manual - (1) Battery Loading

SOUND LEVEL METER 

7

VI . Measurement Preparation 

(1) Battery Loading 

Remove the battery cover on the back and install one 

9V Battery.   

(2) Battery Replacement 

When the battery voltage drops below that required for 

reliable operation, the low battery symbol     will 

appear, indicating it is time to replace the battery. 

VII. Operating Precautions 

(1)

Calibrate the instrument before operation if the instrument 

has not been used for a long period of time. 

(2)

Do not store or operate the instrument in high temperature 

and high humidity environments. 

(3) Keep the microphone dry and avoid severe vibration. 

(4) Remove the battery from the instrument, and store in a 

low humidity environment when not in use. 

VIII. Measurement 

(1) Open the battery cover and install a 9V battery in the 

battery compartment. 

(2) Turn power ON and select the desired response time 

and weighting. If the sound source consists of short 

bursts, or the meter is only catching sound peaks, set 

response to FAST. To measure average sound levels, 

use the SLOW setting. 

Select A-weighting for general noise sound level and 

C-weighting for measuring sounds with high low 

frequency content. 

(3) Select desired level.