![background image](http://html.mh-extra.com/html/hp/8112a/8112a_operating-programming-and-servicing-manual_163950173.webp)
LEE
1 ms
TRE
1 ms
26. Observe TRE on the oscilloscope and adjust A2R27 for 1 .000 ms
±5 µs.
27. Switch COMPL on and off and adjust A2R27 for best
compromise 1 .000 ms ±5µs.
28. Set the HP 8 1 12A as follows:
PER
50 ms
LEE
10 ms
TRE
10 ms
29. Observe LEE and TRE on the oscilloscope and adjust A2R28
whilst switching COMPL on and off, and adjust for best
compromise 10.00 ms ±50 µs.
30.
If
the last two steps cannot be achieved, repeat steps 1 1 to 26 for
the minimum difference between LEE and TRE.
3 1 . Set the HP 8 1 12A as follows:
PER
LEE
TRE
500 ns
100 ns
100 ns
32. Connect the HP 8 1 12A to the HP 54121A oscilloscope using two
20 dB attenuators.
33. Set the oscilloscope to display one pulse and set it to measure
Rise/Fall time.
34. Observe the oscilloscope and adjust A1C304 for best compromise
of LEE and TRE { 100 ns ±2 ns ).
35. Set the HP 8 112A as follows:
LEE
TRE
49.9 ns
49.9 ns
36. Observe the oscilloscope and adjust A2R26 for best compromise
of LEE and TRE (50 ns ± 1 ns).
Adjustment Procedures 9-2 1
Summary of Contents for 8112A
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Page 294: ... 8 X2l 2 X2 Figure A 1 Mechanical Parts 1 A 2 Replaceable Parts ...
Page 295: ...MP MP3 MP MP2 MP4 MPS MP 1 2 MPS MP MP I B ElElElEl Replaceable Parts A 3 ...
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