➢ Slide the battery into the housing.
➢ Close the back hatch
9.8 Load the battery
Use a USB power adaptor which serves as a charger.
It's also possible to connect the sound level meter to USB port of a running computer. Battery will load according available current at
the USB output, about 500 mA.
A time of about 8 to 10 hours is needed to obtain a full charge.
Meaning of warning light located next to USB port :
• Red warning light : ongoing load
• Green warning light : completed load
• Blinking red /green warning light : battery is disconnected, check the connection or contact customer support
• Orange warning light after a load period : load or battery trouble : disconnect then connect again the charger. Red warning
light must be turned on to finish loading. If orange warning light appears, contact customer support.
9.9 AC adapter
For measurements over long periods, if possible, use the AC adapter supplied with the instrument. Battery pack (or optional battery)
must stay inside the instrument in order to preserve measurement in case sudden failure of the sector.
Directions for use and sound level meter maintenance 28
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