Keithley 3721-ST User Manual

Section 11: TSP command reference Series 3700A System Switch/Multimeter Reference Manual
11-232 3700AS-901-01 Rev. D/June 2018
dmm.threshold
This attribute determines the signal level where the instrument makes frequency or period measurements.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (RW)
Yes
Reset
DMM reset
Recall setup
Create configuration script
Save setup
1.000000E+01
Usage
value = dmm.threshold
dmm.threshold = value
value
The threshold setting. The range for:
▪ Continuity is from 1 to 1000 
▪ Frequency and period is from 0 to 303 V
Details
This attribute is only valid when dmm.func is set to "frequency", "period", or "continuity".
All other functions generate an error and return nil when queried.
The range setting conditions the signal. The instrument automatically selects the most sensitive
threshold range for the value you enter. For example, if you specify the expected input voltage to be
90 mV, the instrument automatically selects the 100 mV threshold range.
Errors are generated if the parameter value does not make sense for selected function.
The threshold value is saved with the dmm.func function setting, so if you use another function, then
return to "frequency", "period", or "continuity", the threshold value you set previously is
retained.
Example
dmm.func = "frequency"
dmm.threshold = 30
Sets the threshold range for frequency to 30.
Also see
dmm.configure.recall() (on page 11-165)
dmm.configure.set() (on page 11-166)
dmm.func (on page 11-179)

Keithley 3721-ST Specifications

General

Brand	Keithley
Model	3721-ST
Category	Multimeter
Language	English