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SCPI Commands for the Counter
VX4101A MultiPaq Instrument User Manual
3–61
CALibrate:DTI
The CALibrate:DTI command performs a statistical analysis of the internal
hardware for determining the setting of the digital time interpolation bit used by
the Counter hardware. This command requires an input frequency source set to a
10 MHz square wave at ±0.5 V ±0.1 V.
CALibrate3:BIAS
The CALibrate3:BIAS performs a sensitivity adjustment for the channel three
input of the card.
CALibrate[1|2|3]:ROSCillator <input frequency>
This command is used to calibrate the currently selected reference oscillator
using an externally supplied signal with a known frequency and the VX4101A
counter. The suffix on the Calibrate keyword specifies to which channel the
external signal is connected. The argument specifies the frequency of this signal.
After the calibration is complete, the calibrated reference oscillator frequency is
stored in nonvolatile memory and will be used for all subsequent measurements.
CALibrate:ARM[:VALue]
Command Description
CALIBRATE:ARM:VALUE 0 Performs the ARM input offset correction
cal:arm 20 Performs the ARM input gain correction
CALibrate[<channel>]:DELay
Command Description
CALIBRATE1:DELAY Performs the channel 1 cabling delay calibration
cal2:del Performs the channel 2 cabling delay calibration
CAL:DELAY 12 Performs the channel 1 to 2 cross channel delay calibration
cal:delay 21 Performs the channel 2 to 1 cross channel delay calibration
CALibrate[<channel>]:VALue
Command Description
CALIBRATE1:VALUE 5 Performs the gain correction for channel 1 for a 5 V input
CAL2:VAL –5.0 Performs the gain correction for channel 2 for a –5.0 V input
Examples