User manual

Section 13: Instrument Control Library (ICL) Series 3700 System Switch/Multimeter Reference Manual
13-110 3700S-901-01 Rev. C / July 2008
dmm.adjustment.date
Example
Also see usage for setting date.
NOTE For following assume set date to July 4, 2007.
To query date and format the response as mm/dd/yyyy:
print(os.date("%m/%d/%Y",
dmm.adjustment.date)) 07/04/2007
To query date and format the response as mm/dd/yy:
print(os.date("%x",
dmm.adjustment.date)) 07/04/07
dmm.aperture
Attribute
Indicates the aperture setting for the active DMM function in seconds.
Usage
To read the aperture:
value = dmm.aperture
value: Represents the present aperture setting in seconds
To write the aperture:
dmm.aperture = value
value: Represents the desired aperture:
For 50Hz, the range is 10e-6 to 0.250 second.
For 60Hz, the range is 8.33e-6 to 0.250 second.
For frequency and period, 0.01 to 0.273 second.
Remarks
This is the aperture setting for the DMM and it applies to the selected function as
indicated by dmm.func (on page 13-137). Querying the aperture when the selected
function does not have an aperture associated with it will cause nil to be returned.
An error is generated if a command is received when dmm.func (on page 13-137) =
"continuity" or "nofunction".
Changing functions with dmm.func (on page 13-137) will reflect the aperture setting for
that function.
The setting for aperture may be adjusted based on what the DMM supports.
Therefore, after setting the aperture, query the value to see if it was adjusted.
If the detector bandwidth (dmm.detectorbandwidth (on page 13-132)) setting is 30 or
less for "acvolts" or "accurrent", then an error message will be generated when trying
to set the aperture for these functions. The detector bandwidth setting is one of three
values (based on input parameter): 3, 30, or 300.
Input parameter
Converted value
< 30
3
Between 30 and 300
30
300
300