Interactive SourceMeter® Instrument Reference Manual  Section 6: 
 
2450-901-01 Rev. B/September 2013  6-47 
 
This additional time can cause problems in sweeps and other test sequences in which measurement timing is 
critical. To avoid the time that is needed for the reference measurements in these situations, you can disable 
autozero. You can use [:SENSe[1]]:AZERo:ONCE to force a one-time refresh of the reference measurements. 
When autozero is set to off, the instrument may gradually drift out of specification. To minimize the drift, you can 
send the once command to make a reference and zero measurement immediately before a test sequence. 
If you send this command without the <function> parameter, it sets autozero for all functions. 
Example 
 
Sets autozero off for voltage measurements. 
Also see 
Automatic reference measurements (on page 2-108) 
[:SENSe[1]]:AZERo:ONCE (on page 6-36) 
 
[:SENSe[1]]:<function>:DELay:USER<n> 
This command sets a user-defined delay that can be used in the trigger model. 
Type  Affected by  Where saved  Default value 
Command and query 
Instrument reset 
Power cycle 
Measure configuration list 
Measure configuration list 
0.000000E+00 
Usage 
[:SENSe[1]]:<function>:DELay:USER<n> <delayTime> 
[:SENSe[1]]:<function>:DELay:USER<n>? 
[:SENSe[1]]:<function>:DELay:USER<n>? DEFault 
[:SENSe[1]]:<function>:DELay:USER<n>? MAXimum 
[:SENSe[1]]:<function>:DELay:USER<n>? MINimum 
 
The measurement function to which this setting applies: 
•  Current: CURRent[:DC] 
•  Resistance: RESistance 
•  Voltage: 
 
The number that identifies this user delay (1 to 5) 
The time of the delay in seconds (0 to 10,000) 
Details 
To use this commands in a trigger model, assign the delay to the dynamic delay block. 
Example 
 
Set user delay 1 to 0.2 seconds for current 
Also see 
:TRIGger:BLOCk:DELay:DYNamic (on page 6-140)