Figure 1-16: Measurement Of Time Accuracy For Pulse And Glitch - Tektronix TDS 500D Technical Reference

TDS 500D, TDS 600C, TDS 700D & TDS 714L Performance Verification and Specifications
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H Press SET LEVEL TO 50%.
H While doing the following subparts, monitor the display (it will stop
acquiring) and the front-panel light TRIG (it will extinguish) to
determine when triggering is lost.
H Press the side-menu button Lower Limit.
H Use the general purpose knob to increase the Lower Limit readout
until triggering is lost.
H CHECK that the Lower Limit readout, after the oscilloscope loses
triggering, is within 3.5 ns to 6.5 ns, inclusive.
H Enter time on test record.
H Use the keypad to return the Lower Limit to 2 ns and reestablish
triggering.
H Press the side-menu button Upper Limit; then use the general
purpose knob to slowly decrease the Upper Limit readout until
triggering is lost.
H CHECK that the Upper Limit readout, after the oscilloscope loses
triggering, is within 3.5 ns to 6.5 ns, inclusive.
H Enter time on test record.
Figure 1–16: Measurement of time accuracy for pulse and glitch triggering
Performance Tests
Set upper
and lower
limits that
ensure
triggering.
Then change
limits until
triggering
stops.
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