Disable; Limit; Pre Adjustments Setup - HP 8112A Operating, Programming And Servicing Manual

Pre Adjustments
Equipment
Procedure
•
Oscilloscope (HP 54121 T).
•
Attenuator 20 dB (3
Figure 9-2. Pre adjustments setup
Minimum Pulse Droop
1 . Set up the HP 8 1 12A as follows:
Trigger Mode
Control Mode
PER
DEL
DTY
Transition
LEE
TRE
HIL
LOL
COMPL

DISABLE

LIMIT

2. Connect the HP 8 1 12A main output to the oscilloscope input 4
x
via 40 dB (2 20 dB) attenuation.
3. Connect TRIGGER OUT of the HP 81 12A to the TRIG IN of
the oscilloscope, via a 20 dB Attenuator.
4. On the oscilloscope:
a. Press (Autoscale ) and set for 2 V /division.
b. Set the attenuation factor to 1 00 and its offset to 0 V.
5. Adjust A1R515 for best pulse droop in all three transition
modes.
x
).
Oscilloscope (H P 54121TI
Attenuators, 40dB (2x20)
NORM
Off
1 ms
65 ns
503
Linear, Fixed, Gaussian as reqd.
10 ns
10 ns
v
+4.99
v
-4.99
Off
=
Off ( Enable)
Off
Adjustment Procedures 9-5
20dB