When ordering reticles, take into consideration only your
total objective. |
Use
the following equation: |
Desired
value X Objective = Actual Value |
| Example:
.001" x 3X = .003" per division |
Therefore: |
| .003"
x 100 divisions = .300"/100 parts (KR-203) |
| .003"
x 200 divisions = .600"/200 parts (KR-223) |
Below
are examples of the different values attained from a single
reticle, |
| when
used with various objective settings: |
| KR-203:
.300"/100 parts, each division equals .003" actual value |
| .003"
@ 1X objective setting = .003" in system |
| .003"
@ 2X objective setting = .0015" in system |
| .003"
@ 3X objective setting = .001" in system |
Equation:
Actual Value / Objective Setting = Value in System |
Each
reticle must be calibrated to each objective for precise measurements. |
| PROCEDURE
FOR CALIBRATING THE MICROSCOPE |
1 |
Focus stage micrometer scale. |
2 |
Move the stage micrometer until one line coincides with
the farthest left line
of the eyepiece reticle. |
3 |
Count across to the right to any other point where a line
on the eyepiece
scales coincides with a line of the stage micrometer. |
4 |
Should no lines coincide, estimate the fraction of the
space between
the last two lines at the extreme right. |
|
When
both the stage and eyepiece scales are graduated in the same
system, it is easiest to fine" the number of times an
object is magnified by the objective and the field lens of
the given eyepiece when focused in the plane of the eyepiece
micrometer disc.
With
this procedure, the size of the object observed is: |
| The
size of any object in the eyepiece scale÷ The
Magnification Factor =
OBJECTIVE |
| or |
| Actual
total value in eyepiece÷ Actual dimension on
stage micrometer scale = OBJECTIVE |
| It
is easiest to calibrate when eyepiece and stage micrometer are
both in English or both in Metric. If you have one of each,
convert one, before dividing. |
Made in the USA
