Great Planes PowerMatch - GPMM3220 - Manual (Page 3)

3
I M P O RTA N T WA R N I N G S
Disconnect the battery from the meter immediately
if the meter or battery become hot!! Allow the meter
and battery to cool down before reconnecting.
NEVER allow water, moisture or foreign objects into the meter.
NEVER block the air intake holes or fan as this could cause the
meter to overheat.
NEVER attempt to use batteries with more cells or total voltage than
listed in the specifi cations.
NEVER attempt to pass more current/power through the meter than
listed in the specifi cations.
ALWAYS disconnect the battery from the meter when not in use.
ALWAYS keep out of reach of children.
G L O S S A RY O F T E R M S
Amps (A): The unit of measure for charge or discharge current.
Milli-amps (mA): A unit of measure for current, being amps (A)
multiplied by 1000 and listed as “mA”. So 2.5A is the same as 2500mA
(2.5
 1000). Or, to convert mA to amps, divide the mA number by
1000. So 25mA is the same as 0.025A (25 divided by 1000).
Capacity, milli-amp hours (mAh), and amp-hours (Ah): Charge
energy stored by a battery is called capacity, which is defi ned as
how much current a battery can supply in one hour of time. Most
hobby batteries are rated for capacity in “mAh” or milli-amp
hours. A 650mAh battery can deliver 650mA of current for one hour
(650 mA
 1hr = 650mAh). A 3200mAh battery can deliver 3200mA
(3.2A) of current for one hour (3200mA
 1hr = 3200mAh), etc. Very
large batteries, such as lead-acid fi eld batteries, are usually rated in
“Ah” or amp-hours. A “12V 7A” fi eld battery can deliver 7 amps of
current for one hour (7A
 1hr = 7Ah).