Keithley 2450 User Manual

Model 2450
Interactive SourceMeter® Instrument Reference Manual Section 6:
SCPI command reference
2450-901-01 Rev. B/September 2013 6-169
:TRIGger:TIMer<n>:STARt:FRACtional
This command configures an alarm or a time in the future when the timer will start.
Type Affected by Where saved Default value
Command and query
Recall settings
Instrument reset
Power cycle
Save settings 0
Usage
:TRIGger:TIMer<n>:STARt:FRACtional <time>
:TRIGger:TIMer<n>:STARt:FRACtional?
<n>
The trigger timer number (1 to 4)
<time>
The time in seconds (0 to 2147483647)
Details
This command configures the alarm of the timer.
When the timer is enabled, the timer starts immediately if the timer is configured for a start time in the past or if it
is in the future.
Example
TRIG:TIM1:STAR:SEC 60
TRIG:TIM1:START:FRAC 0.5
TRIG:TIM2:STAT ON
Set the timer for 60.5 seconds.
Enable the trigger timer for timer 3.
Also see
:TRIGger:TIMer<n>:STARt:SEConds (on page 6-171)
:TRIGger:TIMer<n>:STATe (on page 6-173)

Keithley 2450 Specifications

General

Model	2450
Category	SourceMeter
Voltage Source Range	±200 V
Current Source Range	±1 A
DC Voltage	200 V
DC Current	1 A
Power Output	20 W
Resolution	6.5 digits
Display	5-inch capacitive touchscreen
Operating Temperature	0°C to 50°C
Connectivity	USB, LAN, GPIB
Dimensions	213 mm × 88 mm × 370 mm