Keithley 6482, Reference Manual

Page: 111 / 350

8-8 Return to Section Topics 6482-901-01 Rev. A / August 2012
Section 8: Triggering Model 6482 Dual-Channel Picoammeter / Voltage Source Reference Manual
External triggering example
In a simple test system, you may want to close a switching channel and then measure the current
of the device under test (DUT) connected to that channel. This test system is shown in
Figure 8-5 ,
which uses a Model 6482 to measure 10 DUTs switched by a Model 7011 multiplexer card in a
Model 7001/7002 Switch System.
Figure 8-5
DUT test system
The trigger link connections for this test system are shown in Figure 8-6 . The trigger link of the
Model 6482 is connected to the trigger link (IN or OUT) of the switching mainframe. Note that with
the default trigger settings of the switching mainframe, line 1 is an input, and line 2 is an output.
For this example, the Model 6482 and switching system (mainframe) are configured as follows.
Model 6482 setup
Step 1. Restore bench defaults.
1. Press the MENU key, select SAVESETUP , then press the ENTER key.
2. From the SAVESETUP menu, select RESET , then press the ENTER key.
3. Select BENCH , and then press the ENTER key.
Step 2. Configure channel.
1. Press the MSR1 or MSR2 key to select the channel to measure, and then select the range.
2. Press SRC1 or SRC2 to select the voltage source, and then set the source to the value using
the EDIT or numeric keys.
Step 3. Set up trigger parameters.
1. Press the CONFIG key, and then the TRIG key to access the CONFIGURE TRIGGER menu.
2. Select TRIG-LAYER and then press the ENTER key to access the CONFIGURE TRIG-LAYER
menu.
Step 4. Set trigger-in event to TRIGGER-LINK.
1. Select TRIGGER-IN and then press the ENTER key.
2. Select TRIGGER-LINK and then press the ENTER key.
WARNING:
NO INTERNAL OPERATOR SERVICABLE PARTS,SERVICE BY QUALIFIED PERSONNEL ONLY.
CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,REPLACE FUSE WITH SAME TYPE AND RATING.
SERIAL NO.
120
LINE RATING
50, 60Hz
60 VA MAX
FUSE LINE
630 mAT
(SB)
315 mAT
(SB)
100 VAC
120 VAC
220 VAC
240 VAC
CAT I
MADE IN
U.S.A.
OUTPUT ENABLE
RS-232
TRIGGER LINK
INPUT
RATINGS MAX.
30 V @ 20mA
CHANNEL 1
CHANNEL 2
RATINGS MAX.
COMMON
MODE
200V
!
!
IEEE-488
(CHANGE IEEE ADDRESS
WITH FRONT PANEL MENU)
ANALOG
OUT
RATINGS MAX.
30 V @ 20mA
VOLTAGE
SOURCE
OUT
30 V @ 20mA
HI
1
DUT
#1
2
DUT
#2
10
DUT
#10
Card 1
Model 6482
Triaxial cable
7011 Multiplexer card