Tektronix KEITHLEY DMM6500, Руководство по калибровке

Страница: 12 / 123

Section 2: Performance verification DMM6500 6½-Digit Multimeter with Scanning Calibration and Adjustment Manual
2-2 DMM6500-905-01 Rev. E June 2021
If the instrument is still under warranty and its performance is outside specified limits, please contact
your local Keithley Instruments office, sales partner, or distributor. You can also call the Tektronix
corporate headquarters (toll-free inside the U.S. and Canada only) at 1-800-833-9200. For worldwide
contact numbers, visit
tek.com/contact-us .
Verification test requirements
Be sure that you perform these verification tests:
•
Under the proper environmental conditions.
•
After the specified warmup period.
•
Using the correct line voltage.
•
Using the proper test equipment.
•
Using the specified output signal and reading limits.
Environmental conditions
Conduct the calibration verification procedures in a test environment with:
•
An ambient temperature of 18 °C to 28 °C.
•
A relative humidity of less than or equal to 80 percent, unless otherwise noted.
•
No direct airflow on the input terminals.
Warmup period
Allow the DMM6500 to warm up for at least 30 minutes before conducting the calibration verification
procedures.
If the instrument has been subjected to temperature extremes (more than 5 °C above or below T
CAL
),
allow additional time for the internal temperature of the instrument to stabilize. Typically, allow an
additional 30 minutes to stabilize an instrument that is 10 °C outside the specified temperature range.
Also allow the test equipment to warm up for the time recommended by the manufacturer.