HP 214B User Manual

Adjustments
ADJUSTMENTS
3. Select .1 JJ. - 1 JJ. WIDTH range and set vernier to 2 (200 nsl . Set Amplitude to
100 V with internal load switched off.
4. Adjust A 1 R436 and A 1 R408 for fastest risetime.
5. Adjust A 1 R41 9 for minimum overshoot before amplitude decreases.
6. Check that risetime is < 15 ns and over shoot and ringing is < 5 %. If necessa ry
readjust A 1
R41 9, A 1 R436 and A 1 R408.
7. Select 10 - 30
V amplitude range, switch internal load on, and set amplitude to 30 V.
8. Adjust A 1 C501 for overshoot = ringing.
9. Adjust A 1 R487 and A 1 R421 for flat pu Ise top.
10. Adjust R506 for minimum ringing.
11 . Adjust A 1 C504 for overshoot "'" ri ng ing.
12. Check riseti me, overshoot and ringing
for specifications and, if necessary, opti mi ze
pulse via C501, C504, R421 and R487.
13. Switch internal load
off , check pulse specifications, and optimize adjus tment
if necessary.
14. Recheck risetime, overshoot and ringing
at 100 V amplitude with and without
internal load.
15. Select .3 - 1
V amplitude range, set amplitude for 1 V and adjust A2C514 for
minimum ringing.
16. Select the
.1 JJ. - 1 JJ. period range and press DUTY CYCL E pushbutton.
17. Set the Sampling Oscilloscope so that exactly one period is displayed.
18.
Adjust A2R197 for 8 % duty cycle at 50 % of amplitude .
5-12
Model 2148
Scans by ArtekMedia => 2009

HP 214B Specifications

General

Brand	HP
Model	214B
Category	Portable Generator
Language	English