Keithley 2182, Service Manual, Page: 29 / 120

Calibration dates
Choose the DATES selection in the calibration menu to display the date the Model 2182 was
calibrated and the date calibration is due. The unit will display these dates as in the examples
below:
DATE:12/07/97
NDUE:12/08/98
Calibration count
Choose the COUNT selection in the calibration menu to display the number of times the unit
was calibrated. The instrument will display the calibration count as in this example:
COUNT: 1
Calibration temperature
Select TEMP to display the internal temperature of the unit at the time it was calibrated; for
example:
TEMP: 27.61
Calibration code
Before performing calibration, you must first unlock calibration by entering or sending the
calibration code as discussed below.
Front panel code
1. Access the calibration menu by pressing SHIFT CAL, and note that the instrument
displays the following:
CAL: DATES
2. Use the up or down RANGE key to scroll through the available calibration menu items
until the unit displays RUN, then press ENTER.
3. The Model 2182 then prompts you to enter a code:
CODE? 000000
(The factory default code is 002182.) Use the left and right arrow keys to move among
the digits; use the up RANGE key to increment numbers, and press the down RANGE
key to specify alphabetic letters. Confirm the code by pressing ENTER.
4. The Model 2182 allows you to define a new calibration code.
NEW CODE? N
2-4 Calibration