User Manual

Getting acquain
ted with the oscilloscope
Signal path compensation (SPC)
Signal Path Compensation (SPC) corrects for DC level inaccuracies in the internal signal path caused by temperature
variations and/or long-term signal path drift. You should run the SPC whenever the ambient (room) temperature has changed
by more than 10 °C, or once a week if you use vertical scale settings of 5 mV per division or less. Failure to run a SPC may
result in the oscilloscope not meeting warranted performance levels at those volts per division settings.
To compensate the signal path for all c hannels:
1. Power on and warm up the oscilloscope for
at least 20 minutes.
2. IMPORTANT: Remove all input signals
(probes and cables) from channel inputs
and the Aux Out connector on the back of
the oscilloscope.
3. Push Utility.
4. Push the -M or e- P a ge 1/2 side-menu button.
5. Push th
e Calibration side-menu button.
6. Turn the Multipurp ose knob to select Signal Path, then click the Multipurpose knob to start the SPC process.
The osc
illoscope shows a Signal Path Compensation information message.
7. Push the Compensate Signal Paths side-menu button to start the process.
The sc
reen shows rotating dots while the SPC is run. The oscilloscope displays a message when the SPC is complete.
SPC can take several minutes to run, so wait until the oscilloscope shows a message that SPC is completed.
8. Push
Menu Off to remove the message and menus.
9. Reco
nnect probes to the oscilloscope.
20 TBS2000 Series User Manual