HP 8112A, Operating, Programming And Servicing Manual

Page: 66 / 406

Note
External Width Mode
5-4 Operating Examples
6.
If
a Control Function is required, select the required mode by
repeatedly pressing the control mode key until the required mode
is lit. Apply the Control signal to the CTRL INPUT connector.
Refer to Chapter 4
Operating
for more permissible combinations of
Operating and Control modes.
You may wish to set up Output Limits as described in Chapter 4
Operating to protect the device under test.
7. Press the key to turn off output disable mode and enable
the output (LED extinguished).
EXT INPUT
TRIG OUT
OUTPUT
Figure 5-4. Typical signals in External Width mode
1 . Switch the instrument on using the line switch.
2. If
neccessary, select external width mode by repeatedly pressing
the standard mode key until the E.WID LED is lit.
3 . Apply the E. WID signal to the EXT INPUT and select trigger
slope and level as required. Refer to Chapter 4
Operating
for
information on the trigger controls.
4. Select the Transition mode by pressing the key with the
appropriate symbol. The parameter window will be automatically
illuminated.
5. Select each output parameter in turn by pressing its associated
key. Adjust the parameter value using the and
keys. Refer to Chapter 4
Operating
for additional information on
parameter adjustment.
6.
If
a Control Function is required, select the required mode by
repeatedly pressing the control mode key until the required mode
is lit. Apply the Control signal to the CTRL INPUT connector.
Refer to Chapter 4
Operating
for more permissible combinations of
Operating and Control modes.