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2308-900-01 Rev. A / July 2008
Section 12: Performance Verification
Model 2308 Portable Device Battery/Charger Simulator User’s Manual
Introduction
The procedures in this section verify that measurement accuracy is within the limits stated in the
accuracy specifications. Perform these verification procedures:
• When you first receive the unit 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..
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 output signals and reading limits.
Environmental conditions
Conduct your performance verification procedures in a test environment with:
• An ambient temperature of 18-28°C (65-82°F).
• A relative humidity of less than 70% unless otherwise noted.
Warm-up period
Allow the Model 2308 to warm up for at least one hour before conducting the verification
procedures.
If the unit has been subjected to temperature extremes (those outside the ranges stated above),
allow additional time for the instrument’s internal temperature to stabilize. Typically, allow one extra
hour to stabilize a unit that is 10°C (18°F) outside the specified temperature range.
Allow the test equipment to warm up for the minimum time specified by the manufacturer.
WARNING
The information in this section is intended only for qualified service
personnel. Do not attempt these procedures unless you are qualified to do
so.
NOTE
Be sure to check
www.keithley.com
for the latest Model 2308 Specifications to
ensure you are using the most updated values for the verification tables in this
section.
NOTE
If the unit is still under warranty, and its performance is outside specified limits,
contact your Keithley Instruments representative or the factory to determine the
correct course of action.
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