EXFO MaxTester Series - Manual (Page 15)

Introducing the MaxTester Series Unit
MaxTester Series 5
LED Indicator Description
LED Indicator Description
There is one LED indicator located on the front panel of your unit, providing
you with information about the battery.
This LED is identified by the symbol.
The LED blinks when the battery is charging and its color changes
according to the charge level of the battery, as explained in the table
below.
Color of the LED Meaning
Green Battery level is between 25 % and 100 %.
Yellow Battery level is between 10 % and 24 %.
Red Battery level is low (less than 10 %).

A rapid blinking LED indicates that the unit’s
temperature is out of the operating
specifications, or that the battery has
reached a critically low level and needs to
be recharged.

A slow blinking LED indicates that the
adapter/charger in use has the wrong
voltage for your unit. Ensure that you use the
adapter/charger provided with your unit
(see Electrical Safety Information on page 12
for more information).
None (LED is off)

Unit is powered by battery and the unit is in
Suspend mode.

Unit is off.

Unit is powered by battery and the battery is
empty.