Maintenance and Troubleshooting
Opto22 Problems
Thermo Fisher Scientific Micro-Tech 9101/9201 Reference Manual, Rev J 4-15
Note: The On/Off button allows you to turn the output on or off.
3. Select the appropriate output by pressing the Edit button. Use the
keypad to enter the output number, which must range from 0 to 21.
A caution screen may appear, which you can ignore. Press the
Continue button, and the following screen appears warning you that
these changes are about to be activated and the equipment may start.
4. Press the Continue button.
Here is the procedure to follow to test the Opto22 output module.
1. Verify the source voltage (AC or DC). Measure the source voltage.
If GOOD—Proceed to “Verify the output voltage” (see step 2).
If BAD—Supply correct voltage to digital output circuit.
2. Verify the output voltage (AC or DC). Force the selected output
closed. Measure the output voltage.
If GOOD—Digital output circuitry is functioning as expected.
If BAD—Proceed to “Ohm Opto22 fuse” (see step 3).
3. Ohm Opto22 fuse. Remove and ohm the Opto22 4-amp fuse.
for the
EQUIPMENT MAY START
CONTINUE ABORT
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