User manual

2400 Series SourceMeter
®
User’s Manual Limit Testing 12-19
Performing front panel limit tests
Perform the basic steps below to run limit tests from the front panel. See “Remote
limit testing,” page 12-20, for remote commands and a programming example.
NOTE The Model 2401 does not use the digital output lines of the Digital I/O
port. Therefore it cannot be used with a handler to perform binning
operations. If using a Model 2401 for limit testing, ignore all actions and
information that pertain to binning.
Step 1: Configure test system.
As previously explained, your test system could be as simple as connecting a
DUT to the SourceMeter (Section 2, “Connections”) or could employ the use of a
handler for binning operations. Adding a scanner to the test system allows you to
test multi-element devices (such as resistor networks).
Step 2: Configure source-measure functions.
Configure the SourceMeter for the desired source-measure operations.
Step 3: Configure limit tests.
Select and configure the following limit tests parameters as explained in “Config-
uring limit tests,” page 12-16:
Step 4: Turn output on.
Press the ON/OFF key to turn the output on (OUTPUT indicator turns on). The
Source-Meter will output the programmed bias level.
Step 5: Start testing process.
To enable the limit tests, press the LIMIT key. If the /SOT line of the Digital I/O is
being used by a handler, the testing process will not start until the handler sends a
low-going pulse. Otherwise, the testing process will start when LIMIT is pressed.
NOTE The PASS and FAIL messages indicate the status of each test cycle, with
the following exceptions:
• When in the NORMAL, HIGH IMPEDANCE, or GUARD output-off
state, the OFF message is displayed. The pass and fail conditions
will be displayed as P OFF and F OFF respectively. When in the