InstroTek
8
For example, if the base of the gauge is 5.0 inches above the
soil, and you want to take the first measurement at 6 inches,
place the stop at 5.35 + 5.0 + 6.0 =16.35 inches above the stop
reference line.
4. Tube Adapter Ring
The bottom of the gauge contains an oversize hole to allow
inserting an adapter ring with a diameter to match the type of
access tubing being used. The ring is secured by a screw
through the front of the casting. Unless specified otherwise at
the time of order, an adapter ring for aluminum tubing will be
supplied. Adapter rings for other types (e.g. diameters) are
available from CPN/InstroTek, Inc. or can be constructed
locally.
Fig 1.4 503 Cross Section