Calibration Procedure; Preparing For Calibration; Input Bias Current And Offset Voltage Calibration - Keithley 6514 Instruction Manual

Calibration procedure

The calibration procedure should be performed in the following order:
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•
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NOTE

Preparing for calibration

1.
2.
3.
4.
5.
6.

Input bias current and offset voltage calibration

Before performing the remaining calibration steps, perform input bias current and offset volt-
age calibration as outlined below.
Offset voltage calibration
1.
2.
Preparing for calibration
Offset voltage and input bias current calibration
Volts calibration
Amps calibration
Coulombs calibration
Ohms calibration
Entering calibration dates and saving calibration
Locking out calibration
Ohms calibration must be done last to allow charge to bleed off internal insulators.
Turn on Model 6514 and the calibrator, and allow them to warm up for at least one hour
before performing calibration.
Press SHIFT then CAL. The instrument will display the following:
CAL: RUN
Use the up or down RANGE key to display the following:
CAL: UNLOCK
Press ENTER. The instrument will prompt for the calibration code:
CODE?
Enter the current calibration code on the display. (Factory default: 006514.) Use the up
and down RANGE keys to select the letter or number, and use the left and right arrow
keys to choose the position. Press ENTER to complete the process, and the unit will
display:
NEW CODE? N
With N displayed, press ENTER.
From the calibration menu, use the up or down RANGE key to display the following:
CAL: VOFFSET
Press ENTER. The instrument will prompt for a short:
INPUT SHORT
Calibration 19-7