9500B
Calibration Manual
72
Verification Setup
1.
Copy the Table 17.
2.
Test Capacitor Values:
a.
Ensure that the two Capacitors have been
calibrated.
b.
Enter the low and high calibrated values in the
'Capacitance Calibrated Value' column of Table
17.
3.
Connections:
Ensure that the 9500B is connected to the
Capacitance unit (or individual capacitors in turn) as
shown in Figure 12, and that both instruments are
powered on and warmed up.
4.
9500B: a.
Select the Aux functions (Aux key on the right
of the front panel). Press the
Ε
soft key on the
bottom row.
b.
Select the required output Signal Channel.
9500B Absolute Limit Calculations
1.
Refer to Table 17. Ensure that the Test Capacitance Calibrated Values have been
entered for the two Test Capacitors (High and Low).
2.
Use the specification figures to calculate the 9500B Absolute Limits.
Example: Let us say that the Test Capacitor value has been calibrated at 20 pF:
The specification for this value is: ±2 % ± 0.25 pF.
±[(2 % x 20 pF) + 0.25 pF] = ±[0.4 pF + 0.25 pF] = 0.65 pF
We must now subtract this value from 20pF for the lower limit (19.35 pF), and
add it to 20 pF for the higher limit (20.65 pF).
3.
Enter the 9500B Absolute Limits into their respective columns on Table 17.
