Keithley 3700 series Reference Manual page 249

Series 3700 System Switch/Multimeter Reference Manual
dmm.measurewithtime
Example
dmm.nplc
Attribute
Usage
Remarks
Also see
Example
Document Number: 3700S-901-01 Rev. A / August 2007
To perform 100 DC voltage measurements and store then in a buffer, called mybuff,
and print the last measurement:
mybuff = dmm.makebuffer(100)
dmm.func = "dcvolts"
dmm.measurecount = 100
reading, seconds, fractional = dmm.measurewithtime(mybuff)
print(reading, seconds, fractional) 
-1.064005867e-002
Indicates the integration rate in line cycles for the DMM.
To read the integration rate:
value = dmm.nplc
value: Represents the present integration rate in line cycles
To write the integration rate:
dmm.nplc = value
value: Represents the desired integration in line cycles:

60 Hertz: 0.0005 to 15

50 Hertz: 0.002 to 12.
This is the integration rate setting for the DMM in line cycles. It applies to the selected
function as indicated by dmm.func
selected function does not support it will cause nil to be returned.
The command generates an error when dmm.func is:

"frequency‖

―period‖

―continuity‖

―nofunction‖
Also, an error will be generated if the value is out of range and dependent on the line
frequency.
Changing functions with dmm.func
The factory default and dmm.reset
dmm.aperture (on page 9-70)
To set the NPLC for two-wire ohms to 0.5:
dmm.func = "twowireohms"
dmm.nplc = 0.5
Section 9: Instrument Control Library (ICL)
1.779155900e+007
(on page 9-91). Querying the setting when the
(on page 9-91) has no effect on this setting.
(on page 9-112) function value is 1.
1.245658350e-001
9-105