Sound Level Meter User Manual
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6-Measurement Preparation
• Remove the battery cover on the back and put in one 9V battery.
• Recover the back cover.
• When battery voltage drops below the operating voltage or battery aging, this symbol will appear on
LCD. Replace the 9V battery. •
• When the AC adapter is used, insert the plug of the adapter(3.5Φ)into the DC 9V connector on the side
panel. •
7-Operating Procedure
• Power on the meter.
• Press “LEVEL” button to select desired level, base on “UNDER” or “OVER” do not appear on LCD.
• Select “dBA” for general noise sound level and “dBC” or measuring sound level of acoustic material.
• Select “FAST” for instant sound and “SLOW” for average sound level.
• Select “MAX/MIN” button for measuring maximum and minimum noise level.
• Hold the instrument comfortable in hand or fix on tripod and measure sound level at a distance of 1~1.5 meter.
8-Notice
• Do not store or operate the instrument at high temperature and high humidity environment.
• When not in use for long time, please take out the battery to avoid battery liquid leakage and cautery on
the instrument. •
• When using the instrument in the presence of wind, it is a must to mount the windscreen to not pick up
undesirable signals. •
• Keep microphone dry and avoid severe vibration.
9-Accessories:
• Instruction manual
• Installation CD
• Screwdriver
• Tripod mounting
• Battery
• Power source
• Windscreen
• Software
• USB interface cable
10-Installing the software
• Start windows
• Insert the CD into the CD-drive.
• Run SETUP.EXE installation program in file DISK1, install it to the referred directory.
• Install CP210X drive software：
Connecting the meter with the computer by USB interface, install CP2102 drive software in my computer •
property: \hardware\facility management\COM CP210X USB. •
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