Keithley DMM7510 Reference Manual

Model DMM7510
7½ Digit Graphical Sampling Multimeter Reference Manual Section 8:
TSP command reference
DMM7510-901-01 Rev. B / May 2015 8-195
dmm.measure.threshold.level
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
Restore configuration
Instrument reset
Power cycle
Measure configuration list
Configuration script
Measure configuration list
0
Usage
value = dmm.measure.threshold.level
dmm.measure.threshold.level = value
value
The level:
−
700 V to 700 V; dependent on range
Functions
dmm.FUNC_DC_VOLTAGE
dmm.FUNC_RESISTANCE
dmm.FUNC_ACV_FREQUENCY
dmm.FUNC_AC_VOLTAGE
dmm.FUNC_4W_RESISTANCE
dmm.FUNC_ACV_PERIOD
dmm.FUNC_DC_CURRENT
dmm.FUNC_DIODE
dmm.FUNC_DCV_RATIO
dmm.FUNC_AC_CURRENT
dmm.FUNC_CAPACITANCE
dmm.FUNC_DIGITIZE_CURRENT
dmm.FUNC_TEMPERATURE
dmm.FUNC_CONTINUITY
dmm.FUNC_DIGITIZE_VOLTAGE
Details
You need to set an appropriate voltage trigger level in order for the frequency counter to operate
properly. The frequency counter only counts cycles when the signal amplitude reaches the trigger
level. For example, if you set the trigger level for 10 V, any cycles with peak amplitude less than 10 V
are not counted.
You must select a specific threshold range (autorange must be set to off) before setting a level that is
not zero.
Example
dmm.measure.func = dmm.FUNC_ACV_FREQUENCY
dmm.measure.threshold.range = 10
dmm.measure.threshold.level = 5
Set the measure function to frequency.
Set the threshold range to 10 V.
Set the threshold level to 5 V.
Also see
dmm.measure.threshold.autorange (on page 8-194)
dmm.measure.threshold.range (on page 8-196)

Keithley DMM7510 Specifications

General

Brand	Keithley
Model	DMM7510
Category	Multimeter
Language	English