Trigger Level - Keithley 2002 Getting Started Manual

Figure 7
Frequency measurements
AC voltage input
AC current input

Trigger level

An appropriate trigger level is needed for the frequency counter to operate properly. The in-
strument only counts cycles with peak amplitudes that reach the trigger level. For example, if
the trigger level is set for 5V, cycles with peak amplitudes less than 5V are not counted.
Use the RANGE
key returns the trigger level or 0V or 0mA.
Model 2002
EDIT ERR REM TALK LSTN SRQ REAR REL FILT MATH 4W AUTO ARM TRIG
1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8
2001 MULTIMETER
Caution: Maximum Input = 1100V peak, 2 x 10
Model 2002
EDIT ERR REM TALK LSTN SRQ REAR REL FILT MATH 4W AUTO ARM TRIG
1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8
2001 MULTIMETER
Caution: Maximum Input = 1A peak
and keys to check and/or change the trigger level. The AUTO range
Front Panel Operation
SMPL
9 10
7
SMPL
9 10
1-15
AC Voltage
Source
V•Hz
AC Current
Source