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SECTION IV
Model 4277A
14. Set the self test item "3" using the procedure described in steps 3 and 4. The
value displayed on the DISPLAY A should be within 0 and -200 counts.
15. Disconnect the Open (OS) termination and connect a lOpF standard capacitor
directly to the UNKNOWN terminals as shown in Figure 4-3 (b).
16. Set the DISPLAY B function to "D" and press the LC 1 Z |
RANGE selector key
once to select the lOpF rar^e.
Note
To verify the selected range, temporarily release the self test function
and read the measured value and unit indicator. Thereafter, reset the
self test function and select the test item "3."
17. The value displayed on DISPLAY A should be between 0 and -200 counts.
18. Repeat steps 15, 16 and 17 with the lOOpF and lOOOpF standard capacitors. Set
the range (step 16) as listed in Table 4-5.
Table 4-5. Self-Operating Test (Item 3)
^
,
, Resistor
Standard „
Capacitor
Function
Range
Test Limits (Display A)
Open (OS)
C-G
IpF
0 to -200 counts
lOpF
C-D
lOpF
0 to -200 counts
lOOpF
C-D
lOOpF
0 to -200 counts
lOOOpF
C-D
InF
0 to -200 counts
Note
Only self test items 3, 8 and 9 are used in this test.
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