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SECTION III
Model 4277A
[HP-IB Operation]
The following procedure is an example of dc bias
remote control via the HP-IB.
1. Set the DC BIAS select switch ©to INT.
2. Connect the 16047A Test Fixture to the
UNKNOWN terminals.
Note
Any of the test fixtures and test leads
listed in Table 1-3 can be used for
measurements requiring dc bias.
3. Turn on the 4277A.
4. Perform OPEN and SHORT Zero Offset
adjustments as described in paragraph 3-51.
5. Set the DC BIAS ON/OFF switch ©to ON.
Note
The dc bias voltage is automatically set
to OV each time the instrument
is
turned on.
6. Set the front panel control via the HP-IB.
* Example of setting the instrument for a
C-D measurement at
lOkHz, external
trigger.
REMOTE 717
CLEAR 717
OUTPUT 717; ''A2B1FR10ENF1T2"
7. Connect the DUT to the test fixture.
8. Set the desired dc bias voltage via the
HP-IB.
* Example of setting a dc bias voltage of
+ 10V.
OUTPUT 717; "BIIOEN"
9. Wait until the dc bias voltage settles.
* Example of programming a 10ms wait.
WAIT 10
10. Trigger the instrument via the HP-IB.
OUTPUT 717; "EX"
or
TRIGGER 717
11. Read and print the measured values.
ENTER 717; A, B
PRINT A, B
3-72
Figure 3-31. Option 001 Internal DC Bias (Sheet 2 of 3).
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