Internal Calibration - Tektronix TPS2000 Series User Manual

Managing TPSBAT Battery Packs
The charger will charge, discharge, and then fully recharge the
battery pack returning it to a fully calibrated state. The calibration
process can take up to ten hours to complete. Overnight calibration is
recommended due to the slow nature of the discharge-charge cycle.

Internal Calibration

If you do not have a TPSCHG battery charger, you can still calibrate
a battery pack inside the oscilloscope. To do so, follow these steps:
1. Power down the oscilloscope to allow a faster charge rate.
2. Apply external power from the oscilloscope AC adaptor for
approximately 5 hours per battery pack.
3. Remove the oscilloscope AC adaptor.
4. Push the front panel power switch to power on the oscilloscope.
5. Operate the oscilloscope until it powers off, indicating the battery
pack is fully discharged (approximately 5.5 hours for 2-channel
models and 4.5 hours for 4-channel models for each battery
pack).
6. Again, apply external power from the oscilloscope AC adaptor
for approximately 5 hours for each battery pack. During this
time, do not power on the oscilloscope.
If the battery pack is not fully charged and calibrated, attempt to
calibrate the battery pack again. If the second attempt fails, replace
the battery pack.
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TPS2000 Series Digital Oscilloscope User Manual