4.2.6 XP100 VERIFICATION PROCEDURE
1. Remove the Th-232 fixture from the TS100 test source container. Close and
move the TS100 with Cs-137 button a few feet away.
2. With the ADM300 turned OFF attach the XP100 and turn on the ADM300.
3. Refer to illustration in the ADM300 Kit E (Test/Verification Kit) manual or on
the Th-232 source fixture and place the XP100 on Th-232 fixture in the circle
indicated. The XP100 probe face should be flat against the source.
4. Allow the rate reading to settle for approximately 20 seconds. Observe that the
displayed rate reading is between the upper and lower limits listed for the
current year and correct probe in the expected readings column on the Th-232
fixture label.
5. If the reading is not within the indicated limits, repeat steps 1 - 2. If the reading
still fails to fall within the listed limits, return unit to maintenance.
6. Turn ADM300 off, disconnect the XP100, and return Th-232 source to the
TS100 container.
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