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TSG 601 User Manual
55
Appendix C: User Service
Battery Hints
For optimal battery life and capacity, use the rechargeable NiCad
battery pack (Tektronix p/n 119-4488-00) in full charge/discharge
cycles. In other words, fully discharge the battery pack before re-
charging, and then charge the battery pack until fully charged,
approximately 16 hours. A new battery pack will take a few charge/
discharge cycles to reach full capacity.
WARNING. Install or replace batteries only with the instrument
switched OFF and the AC adapter disconnected.
Replace the batteries only with standard AA batteries (1.2–1.5 V,
nominal), or with a Tektronix rechargeable battery pack (p/n
119-4488-00).
Setting the Auto Power Down (page 56) and Battery Type (page 57)
functions in the diagnostic menu also have an impact on battery life.
The battery types are disposable (Alkaline) or rechargeable (NiCad).
Setting the battery type changes the voltage thresholds for both the
BATTERY LOW display message and low-battery shut down.
The BATTERY LOW Message
The warning “BATTERY LOW” will appear on the second line of
the TSG 601 display when the battery voltage drops below a prede-
termined level. The level depends on the Battery Type set in the
diagnostic menu (see page 57). The TSG will operate for approxi-
mately ten minutes after the message first appears. For best results,
replace or recharge the batteries when you first see this warning.
Low-battery Shut Down
To prevent erratic operation at very low power levels, the TSG 601
will shut itself down if the battery voltage drops below a second,
lower threshold that also depends on the Battery Type setting.