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Keithley 2701

Keithley 2701
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Model 2701 User’s Manual Limits and Digital I/O 9-15
Figure 9-6
Setup to test 100 resistors
Limit 1 will be used to test for the 1% tolerance and Limit 2 will be used to test for the 5%
tolerance.
The resistance values for the 1% and 5% tolerances are calculated as follows:
R
1%
= 100 × 1% R
5%
= 100 × 5%
= 100 × 0.01 = 100 × 0.05
= 1 = 5
The high and low limits are then calculated as follows:
HI Limit 1 = 100 + R
1%
HI Limit 2 = 100 + R
5%
= 100 + 1 = 100 + 5
= 101 = 105
LO Limit 1 = 100 – R
1%
LO Limit 2 = 100 – R
5%
= 100 – 1 = 100 – 5
= 99 = 95
H
L
CH 1-10
Model 7700
Switching
Module
H
L
CH 11-20
B) Model 7700
INPUT
SENSE
Model 2701
Input HI
Input LO
Sense HI
Sense LO
A) Front panel inputs
100
100

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