High Performance Oscilloscope Calibrator
9500B Mainframe Verification by Functions
51
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Figure 7. Load Resistance Measurement Function Verification (1
Ω
Ref) — Interconnections
Verification Procedure
Copy the table 9. Follow the correct sequence of verification points as shown on the
table, and carry out the following operations (1) to (10) at each verification point.
1.
Verification Points: Refer to Table 9.
2.
9500B: Ensure that OUTPUT is OFF.
3.
If using the Model 4955 Calibration Adaptor:
a.
Ensure that the Active Head output BNC is disconnected from the Model
4955 input.
b.
Set the Model 4955 Calibration Adaptor switch as shown in Table 9.
4.
If not using the Model 4955, set up external circuitry to measure the appropriate
load resistor (4-wire connection), with the 9500B Active Head output BNC
disconnected.
5.
DMM: Set to the appropriate Resistance measurement range, take a Resistance
measurement and note the result (R ref) in Table 9.
