Eno Scientific Well Watch 670, Руководство пользователя

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A: Yes. The sound pulse used to measure the depth will even go around corners and
obstructions which block less than 90% of the well opening.
Q: What if the well contains a constant pressure pump system with the accumulator
tank in the well?
A: The in well accumulators tend to block the well shaft entirely. If this is the case then
the Well Watch will be unable to find the distance to the water past the accumulator.
Q: Can the Well Watch measure past a pit-less adapter?
A: Yes. The common side mount pit-less adapter typically does not block a significant
portion of the well opening and will not interfere with the depth sensing. Some pit-less
adapters, however, are recessed into the well and do block most of the opening. These
installations may be more difficult. There are two ways to handle these cases: The
probe spout can be extended into the well and seated on the access hole through the
pit-less adapter. When this is done, the microphone tube must also be extended to
reach into the well cavity.
Q: Can the Well Watch be used on hand dug wells?
A: Hand dug wells are often fairly large and irregular, and as such may cause problems
for the Well Watch due to multiple or weak reflections. Some work and some do not.
However, in any difficult to measure well, a small tube can be installed specifically for
measurement. A 3/4” PE pipe can be used for up to 1000' provided splicers do not
restrict the ID.
Q: Can I use the Well Watch to measure the water level in a tank?
A: There are three issues here. First, the Well Watch is designed to be used in a
constant diameter pipe. Tank measurement is generally into a large opening which
would create multiple reflections and hence an uncertain reading. Second, the
minimum measurement distance is about 15 feet, so unless the sounder is mounted at
least 15 feet from the maximum water level, it would not be useful. And third, the
sensing probe is not designed for use with any pressure. Both sides of the probe must
be maintained at atmosphere. This being said, it is possible to install the sounder on a
sensing tube above the tank extending 15 feet above the maximum water level and
down to the lowest level to be measured.
Q: My sounding tube is 3/4” PVC schd 80 with threaded couplings every 20ft. The Well
Watch reads the depth at 20'. Why?
A: The pocket created at each joint is significant compared to the inside diameter of the
PVC pipe, and therefore causes the pulse to reflect at each coupling. You will notice
that if the min range is increased to 25ft, the depth will jump to 40ft. And when
increased to 45ft, the depth will jump to 60ft etc. In many cases, after the the pulse has
Eno Scientific Well Watch 670 Page 30