Model 2700 Multimeter/Switch System User’s Manual Limits and Digital I/O 9-15
Application — sorting resistors
For this application, the idea is to sort a batch of 100Ω resistors into three bins. Bin 1 is for
resistors that are within 1% of the nominal value. Bin 2 is for resistors that exceed 1%
tolerance, but are within 5%. Bin 3 is for resistors that exceed 5% tolerance.
The digital outputs of the Model 2700 can be used to further automate the test system by
controlling a compatible component handler to perform the binning operations.
Limits
Limit testing is used to test resistor tolerances. Figure 9-6 shows a basic setup using 4-wire
offset-compensated ohms to test 100Ω resistors.
Figure 9-6
Setup to test 100Ω resistors
H
L
CH 1-10
Model 7700
Switching
Module
H
L
CH 11-20
B. Model 7700
INPUT
SENSE
Model 2700
Input HI
Input LO
Sense HI
Sense LO
A. Front Panel Inputs
100Ω
100Ω
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