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Testing Performance
To test the threshold accuracy
Test the 0 V User threshold
In the Format menu, touch the field to the right of Pod 1, then select User. In the
1
pop-up menu, enter 0.00 V, then touch Done.
On the function generator front panel, enter +0.102 V ±1 mV DC offset. Use the
2
multimeter to verify the voltage.
The activity indicators for Pod 1 should show all data channels and the J-clock channel at a
logic high.
Using the Modify down arrow on the function generator, decrease offset voltage in
3
1-mV increments until all activity indicators for Pod 1 show the channels at a logic
low. Record the function generator voltage in the performance test record.
Using the Modify up arrow on the function generator, increase offset voltage in
4
1-mV increments until all activity indicators for Pod 1 show the channels at a logic
high. Record the function generator voltage in the performance test record.
3–16
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