16
Calibration
• Environmental conditions — Summarizes temperature and relative humidity,
warm-up period, and line power requirements.
• Calibration considerations — Lists considerations to take into account when cali-
brating the unit.
• Calibration cycle — States how often the Model 6485 should be calibrated.
• Recommended calibration equipment — Lists all equipment necessary for cali-
bration and gives pertinent specifications.
• Calibration errors — Discusses error messages that might occur during calibra-
tion.
• Calibration menu — Discusses error messages that might occur during calibra-
tion.
• Aborting calibration — Describes how to halt the calibration procedure at any
time.
• Current calculations — Details how to calculate currents from calibrator voltages
and standard resistor values when calibrating the 2nA to 2µA ranges.
• Calibration procedure — Provides step-by-step procedures for calibrating all cur-
rent ranges. The 2nA to 2µA and 20µA to 20mA ranges require separate proce-
dures because of the different calibration equipment involved.
• Calibration support — Describes how to change the calibration code, reset the
calibration code, and view calibration dates and count.