Calibration:zero - HP E1419A User Manual

CALibration
Parameters
Comments
Command
Sequence

CALibration:ZERO?

Comments
220 HP E1419 Command Reference
Parameter Parameter
Name Type
ref_volts numeric (float32)
•
Use the CAL:CONF:VOLT command to configure the on-board voltage source
for measurement at the Calibration Bus connector.
•
A measurement of the source voltage is made with an external multimeter
connected to the H Cal, and L Cal terminals on the Terminal Module, or the V H,
and V L terminals on the Cal Bus connector.
•
The value sent must be for the currently configured range and output (zero or full
scale) as set by the previous CAL:CONF:VOLT <range>, ZERO | FSCale
command.
•
<ref_volts> must be within 4% of the actual reference voltage value as read after
CAL:CONF:VOLT, or an error 3042 '0x400: DSP-DAC adjustment went to limit'
will be generated.
•
<ref_volts> may be specified in millivolts (mv).
•
When Accepted: Not while INITiated
•
Related Commands: CAL:CONF:VOLT, CAL:STORE ADC
CAL:CONF:VOLTAGE 4,FSCALE
*OPC?
enter statement
(now measure voltage with external DMM)
CAL:VAL:VOLT <measured value>
CALibration:ZERO? corrects Analog to Digital converter offset for any drift since
the last *CAL? or CAL:ZERO? command was executed. The offset calibration takes
about 5 seconds and should be done as often as you control set up allows.
•
The CAL:ZERO? command only corrects for A/D offset drift (zero). Use the
*CAL? common command to perform on-line calibration of channels as well as
A/D offset. *CAL? performs gain and offset correction of the A/D and each
channel with an analog SCP installed (both input and output).
Range of
Values
must be within 4% of range nominal
Wait for operation to complete
Send measured value to module
Default
Units
volts
Chapter 6