Easson EX-100, Руководство пользователя

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21
d) Workpiece actual dimension L =L
1
L
0
+ L
s
(L
s
: actual dimension for the standard
ring gauge);
e) L
2
L
3
L
4
Repeat operation b) to see if the value L
0
changes. If not, the value L
0
will be valid. To find shape error of the workpiece, repeat c) several times, move the
worktable and change the workpiece position to be measured and measure out L
2
L
3
L
4
.
Fig.9 Strip underlay for sheet workpiece
5.2.4 Measuring a hole using electrical method
This method is used to carry out internal measuring with rob without measuring force.
The infrared light emitting diode (i.e., a LED on the insulating worktable) is applied to
indicate the contact state. It owns high precision and can be used to measure a small hole
due to its not using the measuring force.
It shall be adjusted as follows before measuring:
a) Check if the level bubble in the base is in the center (No.33 in Fig.3);
b) Mount the worktable for electrical measuring accessories (Fig.5) and adjust the
knob for tilting worktable (No.11 in Fig.2) to make the worktable level bubble in
the center (No.42 in Fig.5);
c)Relieve the weight for measuring force and loose the screw for locking the
measuring spindle (No.20 in Fig.2) and engaged micro-active mechanism (No.21
in Fig.2);
d)Mount the electrical measuring rob (Fig.4). For small diameter through-hole, the
beam of measuring accessories may be under the measuring spindle to easy to
watch the contact state;