Manual
17
Chapter 4 Maintenance
Cleaning
Clean the Bird Digital Power Meter and its display 
with a soft cloth dampened with mild detergent and 
water only. Clean sensors with a dry cleaning solvent 
that leaves no residue.
Charging Batteries
Fully charged batteries provide a minimum of 100 
hours of continuous operation. Charging time is 
typically 8 hours using the ac adapter. The batteries 
charge whenever the DPM is connected to either ac or 
dc power sources, using either the ac Mains adapter or 
the automobile cigarette lighter adapter. The unit will 
charge with its power turned either on or off.
 NOTE: For optimum battery life, charge the 
batteries only after “Low Bat” is displayed.
CAUTION
Harsh or abrasive detergents and some solvents
can damage the display unit and
information on the labels.










