Tektronix TDS500C Check Accuracy, Trigger-Level or Threshold, DC Coupled

Performance Tests
TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications 1–49
HCHECK that the Lower Limit readout, after the oscilloscope stops
triggering, is within 1.9 s to 2.1 s, inclusive.
HEnter time on test record.
HUse the keypad to return the Lower Limit to 500 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 stops.
HCHECK that the Upper Limit readout, after the oscilloscope loses
triggering, is within 1.9 s to 2.1 s, inclusive.
HEnter time on test record.
4. Disconnect the hookup: Disconnect the cable from the generator output at
the input connector of CH 1.
Equipment
required One DC calibration generator (Item 9)
One BNC T connector (Item 7)
Two 50 W, precision coaxial cables (Item 5)
Prerequisites See page 1–15.
DC Calibrator
50 W coaxial cables
Dual banana to
BNC adapters
BNC T
connector
Digitizing Oscilloscope
Figure 1–16: Initial test hookup
1. Install the test hookup and preset the instrument controls:
a. Hook up the test-signal source:
HSet the output of the DC calibration generator to 0 volts.
Check Accuracy,
Trigger-Level or
Threshold, DC Coupled