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Keithley 6485 User Manual

Keithley 6485
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7-2 Triggering Model 6485 Picoammeter Instruction Manual
Trigger models
The owcharts in Figure 7-1 and Figure 7-2 summarize triggering for Model 6485. They
are called trigger models because they are modeled after the SCPI commands to control
triggering (operation)
Figure 7-1
Trigger model — front panel operation
Arm-In
Source
Immediate
GPIB
Timer
Manual
TLink
Arm Event
Detector
Trigger Event
Detector
Trigger Delay
MEASURE
Action
No
Yes
Idle
Another
Arm
?
Another
Trigger
?
Yes
No
Arm
Layer
Trigger
Layer
Trigger-In
Source
;
;
;
;
;
;
INF
1
Yes
Halt
?
No
Once
Bypass
Arm Event
Detector
?
Never
Bypass
Trigger Event
Detector
?
Once
;
Never
Output Trigger
(VMC)
On/Off
Trigger
Count
Output Trigger
(TL Done)
On/Off
Arm
Count
Immediate
TLINk
Press HALT
Turn 6485 ON
;
0.0 sec
;
Factory Default
Output Trigger
;

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Keithley 6485 Specifications

General IconGeneral
ModelKeithley 6485
CategoryPicoammeter
Input Impedance>10^14 Ohms
Voltage Burden<200µV
Accuracy0.4% of reading
Voltage Source RangeNot Applicable
Voltage Source ResolutionNot Applicable
Voltage Source AccuracyNot Applicable
InterfaceIEEE-488
Power Requirements100V to 240V AC, 50/60Hz
Dimensions89 mm high x 214 mm wide x 369 mm deep (3.5 in x 8.4 in x 14.5 in)

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