Easson EX-100, Manual

Page: 13 / 33

12
effective ball diameter. When the ball contacts with the workpiece, the circuit is on and
the infrared light emitting diode will light
.
Fig.4 Electrical measuring accessory
Fig.5 Insulating worktable for the
and measuring head electrical measuring accessories
4.5 Inner measuring system
Shown as Fig.6 and 9: it includes a pair of small-size measuring accessories, a pair of
large-size measuring accessories, a special arbor for small-size measuring accessories and
two standard ring gauges. The both pairs of the measuring accessories are used to
measure internal diameter and depth with different sizes. It is recommended to use the
large-size measuring accessories as possible during measuring. The small-size measuring
accessories can be used to measure a hole diameter within 10 430 mm, and their
maximum penetrating depth is 12mm. They are fixed on the spindle and on the special
arbor respectively; then locked with button. The large-size measuring accessories can be
used to measure a hole diameter within 30 400 mm, and their maximum penetrating
depth is 50mm. They are fixed on the spindle and on the tailstock shaft respectively. The
ring gauges, with two kinds of 14mm and 50mm, are used to set a datum during internal
measuring by using small-size measuring accessories. There are scale marks for actual
dimension and effective measuring direction on the ring gauges.