Vernier Water Depth Sampler - Manual

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O:\_VST PAPERWORK\SENSOR PAPERWORK\SENSOR BOOKLETS\WDS\150101.DOC November 27, 2006
1
Water Sampler # 15010
O
PERATING
I
NSTRUCTIONS
Purpose:
For the collection of water samples at varying depths or distances away from a shoreline.
Contents:
One (1) Assembled Water Sampler
One (1) Cord (15 meter length)
Site Selection:
If you are serious about collecting data on water quality in your area, several collection sites
must be carefully chosen. The site should be accessible year round and under all weather
conditions. You must be able to return to these sites each time you test. Be sure to get the land
owner's permission to use the site. Keep the site clean.
A meaningful collection site will allow you to collect samples from an open stream, river, or
lake. Sites located in shallows, behind dams, or other relatively sheltered areas may not represent
the stream as a whole.
Once a site is chosen, place a marker at the site, and record its location in your notebook
along with a site number. When collecting data, always record your data along with the site
number.
Water Sampling:
Make sure the retrieving line is securely fastened to the eye bolt in the side of the
water sampler. The line should be neatly coiled and free from tangles and knots. Fasten the free
end of the line to some permanent fixture of the dock, bridge or boat you are on; this will prevent
the water sampler from being lost overboard if the free end of the line accidentally slips through
your hands. Some users have found that a Lobsterman’s Toggle (float) is sufficient to prevent loss
of the sampler. When tied to the free end, the toggle will float on the surface of salt water while
supporting the sampler. This has not been documented in fresh water.
Arm the water sampler by pulling both balls directly outward at the same time, then folding
them up over the top of the sampler body. Slip the two metal tubes together (one inside the other)
and align the holes that have been drilled through their sides. When these holes have been aligned,