6712 Sampler
3-2
After replacing the pump tube, reset the count
to zero so that the sampler can begin tallying
the counts for the new tube. Example 8 shows
how to reset the pump counts. Replacing the
tube does not reset the counter.
Experience may suggest a significantly
different pump tube life. The alarm count is
user definable. Example 8 shows how to set the
alarm count.
3.1.2 Checklist For Replacing Pump Tube
1. Disconnect power from the sampler.
2. Loosen the liquid detector’s cover. Unlatch
the pump band.
3. Pull the tube away from the bulkhead
fitting. Pull it from the pump and detector.
4. Clean the pump rollers and the inside of the
pump band.
5. Thread the new tubing through the pump so
that the tube follows its natural curve
around the pump rollers.
6. Align the tube by placing the blue collars in
the grooves inside the liquid detector.
7. Tighten the liquid detector’s cover. Latch
the pump band.
8. Reset the pump tube counter. See step 5 in
9. Take a “dry” manual sample to test the tube
installation.
Summary of Contents for 6712
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