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Performance Verification
Introduction
Use the procedures in this section to verify that Model 2500 Dual Photodiode Meter accu-
racy is within the limits stated in the instrument’s one-year accuracy specifications. Per-
form these verification procedures:
•
Upon receipt of the instrument make sure it was not damaged during shipment.
•
Verify that the unit meets factory specifications.
•
Determine if calibration is required.
•
Follow calibration to make sure it was performed properly.
WARNING
The information in this section is intended for qualified service person-
nel only. 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.
NOTE
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.
Verification test requirements
Be sure to 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 output signals and reading limits.
Environmental conditions
Conduct performance verification procedures in a test environment with:
•
An ambient temperature of 65-82°F (18-28°C).
•
A relative humidity of less than 70% unless otherwise noted.
Summary of Contents for 2500
Page 2: ...Contains Calibrating and Servicing Information Model 2500 Dual Photodiode Meter Service Manual...
Page 11: ......
Page 13: ......
Page 15: ......
Page 16: ...1 PerformanceVerification...
Page 28: ...2 Calibration...
Page 56: ...3 RoutineMaintenance...
Page 59: ...3 4 Routine Maintenance Model 2500 Service Manual...
Page 60: ...4 Troubleshooting...
Page 74: ...5 Disassembly...
Page 81: ...5 8 Disassembly Model 2500 Service Manual...
Page 82: ...6 ReplaceableParts...
Page 93: ...6 12 Replaceable Parts Model 2500 Service Manual...
Page 94: ...A Specifications...
Page 98: ...B CalibrationReference...
Page 108: ...C CalibrationProgram...
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Page 121: ...Keithley Instruments Inc 28775 Aurora Road Cleveland Ohio 44139 Printed in the U S A...