Specifications
PERFORMANCE
TESTS
41. Press the 'DISPLAY FORMAT MENU' key to display the MEAS DISPLAY page.
42. Connect the 1 pF Standard to the
HP
4285A's UNKNOWN terminals.
43. Move the cursor to the
LEVEL field, and set the test signal level to 5 mY.
44. Press the
TRIGGER key, and confirm that the
HP
4285A's reading
is
within the
specified test limits listed in table 1-7.
45. Perform the test for
all standards and settings listed in Table 1-7, by repeating
steps 42
to
44 for each listed setting and standard.
Signal
Level
5 mV
Cp
0
20 mV
Cp
0
100 mV
Cp
0
1
V
Cp
0
2
V
Cp
0
Table 1-7. Impedance Measurement Accuracy Test Limits
(0
m Low Frequency Test)
Test Limits
(Cp,
D)
1 pF
10 pF 100 pF
C.V.±0.0399 pF
C.V.±0.068
pF
C.V.±0.63
pF
±0.0399
±0.0068
±0.0063
C.V.±0.0113
pF
C.V.±0.030
pF
C.V.±0.22
pF
±b.0113
±0.0030
±0.0022
C.V.±0.0037
pF
C.V.±0.024
pF
C.V.±0.15
pF
±0.0037
±0.0024
±0.0015
C.V.±0.0027
pF
C.V.±0.024
pF
C.V.±0.15
pF
±0.0027
±0.0024
±0.0015
C.V.±0.0022
pF
C.V.±0.021
pF
C.V.±0.21
pF
±0.0022
±0.0021
±0.0021
Test Frequency: 1 MHz
C.V.: Calibration Value at 1 MHz
o m High Frequency Test
1000 pF
C.V.±3.5 pF
±0.0035
C.V.±1.5
pF
±0.0015
C.V.±1.5
pF
±0.0015
C.V.±1.5
pF
±0.0015
C.V.±1.8
pF
±0.0018
46. Connect the Terminal Adapter
(HP
16085B) to the
HP
4285A's UNKNOWN
terminals
47. Move the cursor to the
LEVEL field, and set the test signal level to 0.5
V.
48. Press the MEAS SETUP. MENU key and the 'CORRECTION' softkey to display the
CORRECTION page.
49. Connect the
0 S Termination (04191-85032) to the Terminal Adapter's OUTPUT
terminal.
50. Move the cursor to the
OPEN
field.
51. Press the 'MEAS OPEN' softkey to store the open correction data.
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