Model DMM7510 7½ Digit Graphical Sampling Multimeter Reference Manual
Section 2: General operation
DMM7510-901-01 Rev. B / May 2015
2-53
System Calibration menu
The
Calibration
menu allows you to start or manage auto calibration. Auto
calibration removes measurement errors that are caused by the effects of
temperature and time on components. You can also review factory
adjustment and verification dates.
Option
Description
Last Run
Displays the date and time when auto calibration was last run.
Count
The number of times that auto calibration has been run since the
last factory calibration. The count restarts at 1 after a factory
calibration.
Warmup
Displays "Ready" if the instrument warmup period is complete. If
the warmup period is incomplete, displays "Not Ready" and the
time remaining.
Temperature
Difference
The difference between the temperature of the instrument in
Celsius (°C) compared to the temperature during the last auto
calibration. The instrument updates the temperature when autozero
references are refreshed. If autozero is set to off, the internal
temperature is not updated.
Start ACAL
Runs auto calibration.
Scheduling Action
The action to take when the Scheduling Interval occurs:
•
Run: Run auto calibration.
•
Notify: Display a message that auto calibration should be
run.
•
None: No scheduled auto calibrations occur.
Scheduling Interval
How often the Scheduling Action occurs. Only available when the
scheduling action is set to Run or Notify.
Scheduled Time
The time when the Scheduling Action occurs, entered in 24-hour
time format in one-hour increments. Only available when the
scheduling interval is set to a day or more.
Next Run
Displays the date and time when the next Scheduling Action will
occur.
Adjust Date
The date when the instrument was adjusted through a factory
calibration.
Adjust Count
The adjustment count is the number of times the instrument has
been factory calibrated.
Calibration Date
The date when the instrument calibration was last verified.