User manual

Series 3700 System Switch/Multimeter Reference Manual Section 13: Instrument Control Library (ICL)
3700S-901-01 Rev. C / July 2008 13-35
channel.calibration.unlock()
Remarks
There is only one password per card. Therefore, the only acceptable values for
channel list are slot1, slot2, and so on. Otherwise, an error is generated.
An error is generated if the password that is entered does not match the one that was
saved with channel.calibration.password() (on page 13-32).
The password can only contain six case-sensitive, alphanumeric characters.
The default password from the factory is KI3706. The first two characters in the
password are capital K capital I (for Keithley Instruments).
Also see
channel.calibration.password() (on page 13-32)
Example
To unlock calibration for first DAC using the default password:
channel.calibration.unlock("1010", "KI3706")
channel.calibration.verifydate()
Function
Sets or gets the calibration verification date in UTC format (number of seconds since
January 1, 1970).
Usage
<mydate> = channel.calibration.verifydate([ch_list],
[<date>])
mydate: Return value representing the number of seconds since January 1, 1970.
ch_list: A string representing the slot holding the card to set or query.
date: Represents the number of seconds since January 1, 1970.
Remarks
This command can get the verification date whether calibration is currently locked or
unlocked. If the channel list is not specified, it uses the currently unlocked card.
This command can only set the verification date on a previously unlocked card. The
date is not permanently saved until channel.calibration.save() (on page
13-32) is issued.
There is only one verification date per card. Therefore, with no channel unlocked, the
only acceptable values for channel list are slot1, slot2, and so on. Otherwise, an
error is generated.
Also see
channel.calibration.save() (on page 13-32)