Tektronix TDS 600B, TDS 500D, TDS 700D - page 67

Performance Tests
TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications 1–51
HPress the side-menu button Lower Limit.
HUse the general purpose knob to increase the Lower Limit readout
until triggering is lost.
HCHECK that the Lower Limit readout, after the oscilloscope loses
triggering, is within 3.5 ns to 6.5 ns, inclusive.
HEnter time on test record.
HUse the keypad to return the Lower Limit to 2 ns and reestablish
triggering.
HPress the side-menu button Upper Limit; then use the general
purpose knob to slowly decrease the Upper Limit readout until
triggering is lost.
HCHECK that the Upper Limit readout, after the oscilloscope loses
triggering, is within 3.5 ns to 6.5 ns, inclusive.
HEnter time on test record.
Set upper
and lower
limits that
ensure
triggering.
Then change
limits until
triggering
stops.
Figure 1–15: Measurement of time accuracy for pulse and glitch triggering
3. Confirm the trigger system is within time-accuracy limits for pulse-glitch or
pulse-width triggering (horizontal scale >1 s):
a. Set upper and lower limits that ensure triggering at 250 kHz: