Seintek S2401 - External Tests; CHB Tests; Duty Tests; 3.3.10. Pulse Width Tests

3-4
properly.
Note:
AC Coupling is a mode that blocks the DC component of a signal but
passes the dynamic (AC) component of the signal. Useful for
observing an AC signal that is normally riding on a DC signal.
6. Horizontal zero position will not be changed, even if you change
offset value.
7. Press TRIG button; then press F3 (Tmode) button.
8. Select CHB in Trigger SOURCE;. then press F3, F4 and F4.
9. Move the input signal from CHA to CHB.
10. Verify AC/DC coupling as described above.
3.3.7. External Tests
1. Press FUNC button; then press F1 (Scope) button.
2. Select Hz of MEASUREMENT A: ;. then press F3, F4 and F4.
3. Press TRIG button; then press F3 (Tmode) button.
4. Select EXT in Trigger SOURCE;. then press F3, F4 and F4.
5. Apply 1MHz (S2401, S2800) or 5MHz (S2405, S2505) to
EXT.TRIG and COM connector and verify that the frequency
measurement value is correct.
3.3.8. CHB Tests
1. Press TRIG button; then press F3 (Tmode) button.
2. Select CHB in Trigger SOURCE;. then press F3, F4 and F4.
3. Apply AC 700V/5kHz to the equipment and verify that the
waveform is displayed correctly.
3.3.9. Duty Tests
1. Press FUNC button; then press F1 (Scope) button.
2. Select DTY of Measurements A;. then press F3, F4 and F4.
3. Apply DUTY 50%/10ms/+5V to the equipment by using 9100.
4. Verify that the equipment is reading 50% correctly.
3.3.10. Pulse Width Tests
1. Press FUNC button; then press F1 (Scope) button.
2. Select P/W of Measurements A;. then press F3, F4 and F4.
1. Apply P/W 1ms/10mS/+5V to the equipment by using 9100.
2. Verify that the equipment is reading 1ms correctly.