Dial Caliper
Dial Caliper
The dial Caliper has
seven main
components:
a slide scale,
lock screw,
thumb adjustment
wheel, measuring
jaws (inside & out),
dial with
measurements of
0.001 inch, depth
rod and a bezel.
Internal Jaw
External Jaw
Depth rod
Depth rod
Reading a Dial Caliper
Dial Caliper Outside/Inside Steps
•
Step 1. Loosen the lock screw at the top of the caliper. Position the object and
move the slide and measuring jaws so that they are larger (for outside
measurements, than the object you are attempting to measure.
•
Step 2. Once you have correctly positioned the object, use the thumb
adjustment wheel to move the caliper jaws until they come into contact with
the object. Note: Apply enough pressure to allow the caliper jaws to come into
contact with the surface object you are measuring. However, be careful not
to press so forcefully that the pressure will prevent or restrict the removal of
the caliper form the object, or that the object or the caliper jaws will be
deformed by the pressure.
•
Step 3. Next tighten the lock screw at the top of the caliper so that the reading
will not change while you remove the caliper from the object.
•
Step 4. Remove the caliper.
Dial Caliper Depth Measurements
•
Step 1. Depth measurements are taken using the depth rod located at the end of
the slide scale. This caliper is designed to take depth readings up to 6” (15,24cm)
in length in holes 0.2” (5,08mm) or greater in diameter.
•
Step 2. Align the end of the caliper with the hole you are attempting to measure.
Position the caliper so that the depth rod is pointing into the hole.
•
Step 3. Loosen the lock screw at the top of the caliper.
•
Step 4. Spin the thumb adjustment wheel, extending the rod until it contacts the
bottom of the hole you are attempting to measure. Note: Apply enough pressure it
allow the depth rod to come into contact with the surface of the object you are
measuring. However, be careful not to press so forcefully that the pressure will
prevent or restrict the removal of the caliper form the object, or that the object or
the caliper jaws will be deformed by the pressure.
•
Step 5. Next tighten the lock screw at the top of the caliper so that the reading will
not change while you remove the caliper from the object.
•
Step 6. Remove the caliper from hole.
Vernier/Slide Caliper
Dial Caliper
Digital Caliper
Dial Caliper
• To read the Caliper first
take the reading on the
scale. On this one it
would be 2.400
• Then take the reading
on the Dial this one is
.055 Add them
together and it will be
2.455
• That is 2 inches & .455
Thousanths
Dial Caliper
Try this one
Dial Caliper
• Answer is
• 1.931
• Do the next 5
Read the Measurement 1
Read the Measurement 2
Read the Measurement 3
Read the Measurement 4
Read the Measurement 5