15-2
Performance Verification
Model 6487 Reference Manual
Introduction
Use the procedures in this section to verify that Model 6487 accuracy is within the limits
stated in the instrument’s one-year accuracy specifications. You can perform these verifica-
tion procedures:
•
When you first receive the instrument to make sure that it was not damaged during
shipment.
•
To verify that the unit meets factory specifications.
•
To determine if calibration is required.
•
Following calibration to make sure it was performed properly.
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The information in this section is intended only for qualified service
personnel. Do not attempt these procedures unless you are qualified to
do so. Some of these procedures may expose you to hazardous voltages,
which could cause personal injury or death if contacted. Use standard
safety precautions when working with hazardous voltages.
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If the instrument is still under warranty and its performance is outside specified
limits, contact your Keithley representative or the factory to determine the cor-
rect course of action. Refer to
for calibration procedures.
Verification test requirements
Be sure that you perform the verification tests:
•
Under the proper environmental conditions.
•
After the specified warm-up period.
•
Using the correct line voltage.
•
Using the proper test equipment.
•
Using the specified test signals and reading limits.
Environmental conditions
Conduct your performance verification procedures in a test environment with:
•
An ambient temperature of 65° to 82°F (18° to 28°C).
•
A relative humidity of less than 70% unless otherwise noted.
