Agilent Technologies E3634A, E3633A Calibration Count, Calibration Message, CALSECSTAT OFFON,code

Chapter 3 Calibration Procedures

Calibration Count

Calibration Count

The calibration count feature provides an independent ‘‘serialization’’ of your calibrations. You can determine the number of times that your power supply has been calibrated. By monitoring the calibration count, you can determine whether an unauthorized calibration has been performed. Since the value increments by one for each calibration parameter (see Table 3-2 on the next page), a complete calibration increases the value by 5 counts.

•The calibration count is stored in non-volatilememory and does not change when power has been off or after a remote interface reset. Your power supply was calibrated before it left the factory. When you receive the power supply, read the calibration count to determine its value.

•The calibration count increments up to a maximum of 32,767 after which it wraps around to 0. No way is provided to program or reset the calibration count.

Calibration Message

You can use the calibration message feature to record calibration information about your power supply. For example, you can store such information as the last calibration date, the next calibration due date, the power supply’s serial number, or even the name and phone number of the person to contact for a new calibration.

You can record and read information in the calibration message from the remote interface only.

•The calibration message may contain up to 40 characters.

•The calibration message is stored in non-volatilememory and does not change when power has been off or after a remote interface reset.

•Remote Interface Operation

CAL:SEC:STAT {OFFON},<code>	Secure or unsecure the power supply
CAL:SEC:CODE <new code>	Change the security code
CAL:STR <quoted string>	Store the calibration message
CAL:STR?	Query the calibration information

See “Calibration Overview”, starting on page 68 in chapter 3 of the User’s Guide for more details.

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