A Traverse unit measures distance in increments of 0.01" on a
scale graduated in divisions of 0.1" with a vernier. Standard
scale lengths are 6", 12", 18", 24", 30",
36", 25cm, 50cm, 75cm, 100cm, but other lengths can be custom
Linear movement is resisted by the friction of flat springs sliding
on the scale, adjustable by a thumb screw which can be tightened to
lock the probe at any location.
Angle of rotation of the probe, used for measuring flow direction,
is measured in movements of 0.2¡Æ over a full 360¡Æ on a protractor
graduated in 2¡Æ divisions for easy readability and a special large
The Traverse unit is designed for maximum visibility even under
conditions of poor lighting and awkward position. Verniers are designed
to eliminate parallax errors and divisions are spaced widely enough
so the linear scale can be read accurately to .01". Both scales
are easily visible from the same point regardless of rotation of
the probe. The flat surface of the scale provides a convenient reference
surface for aligning a directional probe with the rig by placing
a parallel between aligning block and scale.
Interchangeable Collets take from 1/16" to 3/8" diameter
probes and lock them firmly in position without danger of damage to
the probe stem.
The unit may be mounted to a flat surface via two 1/4" bolts
or to a Tapped Boss combined with a Pressure Seal. With surface mounting
a Pressure Seal, which does not extend below the Mounting Plate, may
also be provided. In either case, the integral Pressure Seal on Mounting
Plate may be exchanged for different size probes.
How to Order
A complete Manual Traverse Unit consists of: * A Basic Assembly (Item
1), * A Collet (Item 2), * Mounting Seal (Choice of Item 3 or 4).
Specify Part Number to suit probe diameter.