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TFS3031 TekRanger/TekRanger 2 User Manual
3–1
Recharging the NiCad Battery
Low-Battery Warning
The charge level of the battery is always displayed in upper right
screen.
The first low-battery warning is a message displayed on the screen
when about 30 minutes of normal operating time remain.
The second and last low-battery warning consists of a flashing red
BATTERY
LED on the front panel when about 10 minutes of normal
operating time remain.
When to Recharge the NiCad Battery
Recharge the NiCad battery before using the TFS3031 on battery
power, and when a low-battery warning is displayed.
A‘‘battery’’ indicator that shows the charge level
is always displayed in upper right screen. In this
illustration the indicator shows that about 60% of
battery power remains.
A ‘‘power plug’’ indicator is displayed below the battery indicator
when the power/charger adapter or other external DC power source is
connected to the instrument.
When the TFS3031 is using battery power, an
estimate of the operating time left under present
operating conditions is displayed in place of the
power plug indicator.
The TFS3031 cannot be damaged by continuous charging over
extended periods of time at ambient temperatures of less than 40
_
C
(104
_
F). When the battery reaches full charge, the TFS3031 goes to
trickle charge to maintain the full charge level.
TFS3031 TekRanger/TekRanger 2 User Manual
3–1
Recharging the NiCad Battery
Low-Battery Warning
The charge level of the battery is always displayed in upper right
screen.
The first low-battery warning is a message displayed on the screen
when about 30 minutes of normal operating time remain.
The second and last low-battery warning consists of a flashing red
BATTERY
LED on the front panel when about 10 minutes of normal
operating time remain.
When to Recharge the NiCad Battery
Recharge the NiCad battery before using the TFS3031 on battery
power, and when a low-battery warning is displayed.
A‘‘battery’’ indicator that shows the charge level
is always displayed in upper right screen. In this
illustration the indicator shows that about 60% of
battery power remains.
A ‘‘power plug’’ indicator is displayed below the battery indicator
when the power/charger adapter or other external DC power source is
connected to the instrument.
When the TFS3031 is using battery power, an
estimate of the operating time left under present
operating conditions is displayed in place of the
power plug indicator.
The TFS3031 cannot be damaged by continuous charging over
extended periods of time at ambient temperatures of less than 40
_
C
(104
_
F). When the battery reaches full charge, the TFS3031 goes to
trickle charge to maintain the full charge level.