Measuring Waveforms
TDS 500D, TDS 600B, & TDS 700D User Manual
3–161
If gain compensation did not complete successfully, you may get a
“Probe is not connected” message (examine the probe connections to the
digitizing oscilloscope, be sure the probe tip is properly installed in its
retractor, etc., and repeat step 10).
If gain compensation did not complete successfully, you may get the
message “Compensation Error.” This error implies that the probe gain
(2% error) and/or offset (50 mV) is too great to be compensated. You can
substitute another probe and continue. Have your probe checked by
service personnel.
12. If the Probe Offset Compensation message is displayed, continue with step
16; otherwise, continue with step 13.
13. If the Compensation Error message is displayed, continue with step 14;
otherwise continue with step 19.
14. Press SHIFT UTILITY ➞ System (main) ➞ Diag/Err (pop-up) ➞ Error
Log (main). If there are too many error messages to be seen on screen, rotate
the general purpose knob clockwise to scroll to the last message.
15. Note the compensation error amount. Skip to step 20.
16. Disconnect the probe from any signal you may have connected it to. Leave
the probe installed on its channel.
17. Press OK Compensate Offset (side).
18. Wait for offset compensation to complete (one to three minutes).
When offset compensation completes, the following occurs:
The clock icon will disappear.
If offset compensation did not complete successfully, you may get the
message “Compensation Error.” This error implies that the probe offset
scale (10% error) and/or offset (50 mV) is too great to be compensated.
You can substitute another probe and continue. Have your probe checked
by service personnel. You can also check the error log by doing steps 14
through 15.
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