Aqua Survey and Instrument Co. Ohio Magnetic Locator Surveyor Compass
The item(s) offered for auction below arrive from: Store Closures, Insurance Claims, Misguided Cargo, Post Office Undeliverable Packages or Unclaimed Merchandise. In many cases we do not know the origin of these goods. When we know the origin of the product, we describe it in the auction listing.
Auction Description
Magnetic Locator Surveyor and Compass
By Aqua Survey and Instrument Company, Ohio
Comes with its Leather Case
Measures approx. 31/8" x 2" x 3 1/4"
Condition is Good
Reading water meters is made more difficult in that some are not read frequently and so they get hidden by weeds, dirt blown by the wind, etc. In order to make finding them easier a number of products were developed, the Aqua Locator is one of them. This product is not a "water witching" device but rather a magnetic dip needle that's optimized for locating ferrous metal in the ground, like a water meter, but can be used for finding any ferrous metal that's relatively near the surface. It's a compass that works on the up-down part of the field (which is stronger than the horizontal field in most of North America).
INSTRUCTIONS
for use of the
AQUA MAGNETIC LOCATOR
LOCATES VALVE BOXES, SURVEYOR'S STAKES, MANHOLE COVERS
AND OTHER CONCENTRATED FERROUS METAL OBJECTS.
The following is a series of steps in the use of the Aqua Magnetic Locator. Please follow them carefully for 100% satisfaction:
1. Open flap on leather case. (Instrument need not be removed from case.) Turn AQUA
on its side, bottom of case toward you, NW, N, NE dial level. In this position, your
AQUA is a compass. Point dial portion north until red end of needle points exactly at
"N". You now have true north position.
2. Turn AQUA upright, point gold arrow on leather case to "N", as was indicated
by instrument in step #1. (When leather case is very new, it is helpful to fold
the flap down firmly so that it will remain in position when in use, and not
obscure the dial.) Using carrying strap, lower instrument to just a few inches
above ground, holding instrument carrying strap over four fingers. Holding strap
by four fingers minimizes chances of instrument twisting out of position as
you walk. Be sure that "N" is still pointing north.
3. Begin "walking" the instrument in parallel paths, about 12 to 15 inches apart,
until the red end of the needle dips and the black end of the needle appears.
Find the point of maximum reading: that point at which black end comes nearest
to "90" mark. At this point, walk at right angle to former path, still keeping
instrument pointing toward north, until maximum reading is found on right angle
path. This is the location of missing valve box or stake.
When object to be located is very deep in the ground, or heavily covered, a full deflection
to "90" mark cannot be expected. In cases of this kind, "70" or "75" may be the best reading obtainable.
In areas where there are high voltage overhead wires, there is usually electrical disturbance, which will cause the red end of the needle to show on dial. This does not hamper location operations. When over the object, red end will disappear and black end will appear on dial.
Where shrubbery or other obstructions prevent the strap method of holding instrument, AQUA may be removed from its leather case and metal rim pulled up and used as a
handle. However, whenever possible, keep AQUA in leather case, as a protection
against possible damage from bumps and jolts.
THE AQUA SURVEY & INSTRUMENT CO.
