CALibration[<chan>]:ZERO

∙MINimum and MAXimum are not allowed with this command.

∙Optional parameters that are left blank are filled from left to right. Therefore, it may be necessary to use the syntax DEFault to note that a particular parameter has been defaulted. For example, to default the number of readings and specify a sample rate, the command would appear as:

CAL:ZERO DEF, .05, one

∙CALibration:ZERO forces the internal reference (20 MHz) oscillator to be used. Sample rates are attained using that reference.

∙The default number of readings is 1000, and the default period is 1.0E-4 seconds. These numbers were chosen such that the product of the two is a period that is an integral multiple of both 50 Hz and 60 Hz line cycles

(0.1 seconds in this case).

∙The product of the period and number of readings will be checked to see if it exceeds 10 seconds, and if so, error -221;"Settings conflict; Calibration time too long" occurs.

∙The default <mode> is ONE, which calibrates using the current settings of SENSe:VOLTage:RANGe and SENSe:FUNCtion. Specifying <mode> ALL will do a zero calibration on all voltage range settings for both of the ports on the specified channel.

∙Related commands: CALibration:GAIN, CALibration:VALue, CALibration:SECure:STATe

∙*RST Condition: none

Example Performing a zero calibration

CAL:SEC:STAT OFF,E1429

Disable security, assuming factory-set

 

security code

CAL1:ZERO DEF,DEF,ALL

Calibrate channel 1 using default sample

 

rate and number of points, calibrate all gain

 

ranges on both ports.

CALibration[<chan>] Subsystem

Command Reference 211

Page 211
Image 211
HP E1429A manual CAL1ZERO DEF,DEF,ALL