BNC 1105 Universal Counter - Manual (Page 130)

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:MEASure[:SCALar][:VOLTage]:FALL:TIME?
[<lower_reference> [,upper_reference>]][,(@1)]
Sets the measurement arming to “auto” and measures Fall Time with the specified
parameters.
The <lower_reference> and <upper_reference> are used to specify the lower and upper
points on the falling edge of the input signal. They can be specified as either a percentage
or an absolute voltage.
The <lower_reference> and <upper_reference> are used to configure the trigger setting.
When they are in percentage or defaults, auto-trigger is enabled and trigger level is the
specified value. When they are specified in voltage, auto-trigger is disabled and the
trigger level is the specified value.
<lower_reference> default 10 pct
Percent range 0 to 100 pct
Percent resolution 10%
Voltage range -5.125V to 5.125V for ×1 attenuation
-51.25V to 51,25V for ×10 attenuation
Voltage resolution
0.0025V for ×1 attenuation
0.025V for ×10 attenuation
<upper_reference> default 90 pct
Percent range 0 to 100 pct
Percent resolution 10%
Voltage range -5.125V to 5.125V for ×1 attenuation
-51.25V to 51,25V for ×10 attenuation
Voltage resolution
0.0025V for ×1 attenuation
0.025V for ×10 attenuation
<source list> default (@1)
range (@1)
:MEASure[:SCALar][:VOLTage]:RISE:TIME?
[<lower_reference> [,upper_reference>]][,(@1)]
Sets the measurement arming to “auto” and measures Rise Time with the specified
parameters.
The <lower_reference> and <upper_reference> are used to specify the lower and upper
points on the falling edge of the input signal. They can be specified as either a percentage
or an absolute voltage.
The <lower_reference> and <upper_reference> are used to configure the trigger setting.
When they are in percentage or defaults, auto-trigger is enabled and trigger level is the