Front Panel Calibration - Keithley 2701 Service Manual

Section 2: Calibration

Front panel calibration

Perform the steps in the following paragraphs in the order shown for comprehensive, DC-only, and
AC-only calibration procedures.
The procedures for front panel calibration include:
•
Preparing the 2701 for calibration
•
Front panel short and open calibration
•
DC voltage calibration
•
Resistance calibration
•
DC current calibration
•
AC voltage calibration
•
AC current calibration
•
Setting calibration dates and saving calibration
Preparing the Model 2701 for calibration
To prepare the 2701 for calibration:
1. Turn on the 2701 and allow it to warm up for at least two hours.
2. Start the calibration process:
a. Access the calibration menu by pressing SHIFT then TEST, then display TEST: CALIB using the up or
down range key. Press ENTER.
b. Use the up or down range key to scroll through the available calibration menu items until the unit
displays RUN, then press ENTER.
c. At the prompt, enter the calibration code. (The default code is 002701.) 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.
d. Choose N at the prompt to proceed without changing the code, then press ENTER.
3. Select a calibration test from the next table. Use the up and down range keys to scroll through the
options and press ENTER to select a test.
Procedure
Full calibration
DCV, DCI, and ohms
ACV and ACI
2-6
Model 2701 Ethernet-Based DMM / Data Acquisition System Service Manual
Menu selection Procedures
ALL All comprehensive calibration steps (DC and AC)
DC DC voltage, DC current, and resistance calibration
AC AC voltage and AC current calibration
2701-902-01 Rev. B / December 2018