Tektronix TekRanger 2 TFS3031, Service Manual

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Battery Recharging and Replacement
1–14
TFS3031 TekRanger/TekRanger 2 Service Manual
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The
BATTERY
LED glows a steady green when the power/charger adapter is
connected and the battery has reached full charge.
When the battery reaches
full charge, the TFS3031 goes to trickle charge to maintain the full charge level.
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The
BATTERY
LED is off when the power/charger adapter disconnected
(except for the flashing red condition).
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In the upper right corner of the screen, the ‘‘battery’’ indicator always shows
charge level of the battery. A ‘‘power plug’’ indicator is displayed when the
power/charger adapter is plugged in and charging the battery.
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Recharging time for a completely discharged NiCad battery at room
temperature is about four hours if the TFS30301 is not turned on.
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Operating time for a fully recharged Nicad battery is about 4.5 hours.
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The TFS3031 may be powered on and operated during recharging. However,
recharging time will take longer.
Tips for Maximizing Battery Life
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Turn off the backlight, or set a brief backlight blanking time using the
Backlight Time setup in the System Setup menu.
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Set a brief automatic power-off time using the Power Off Time setup in the
System Setup menu.
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If you often use the same setups, select Last Used for power-on defaults on
the System Setup menu to eliminate setup time each time you power on the
instrument.
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Power off the TFS3031 when not in use.
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Minimize floppy-disk use under battery power. Save files to internal memory
while unit is under battery power. Later when you can attach the AC adapter,
copy the files as a group to floppy disk.
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Fully charge the NiCad batteries after each use.
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Operate TFS3031 without the backlight whenever possible.
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Disconnect the battery if the instrument is stored for an extended period of
time (i.e., more than a month).
NiCad Battery Disconnection, Removal, and Replacement
1. Press off the TFS3031 and disconnect external power.