JCHADWICK 8400 User manual

User Manual
Includes Accessories:
5500 Lab Stand w/ X-Y Stage
4400 Surface Replication Kit
Dino-Eye® Digital Camera
Model 8400
Optical Depth Micrometer

2
Contents
Page 4
Part Number List
Pages 5-11
Optical Depth Micrometer
The Optical Depth Micrometer is a visual
inspection microscope designed to make
quick and repeatable measurements of
the depth of small surface features, like
pits, scratches, and engraving.
Pages 12-15
Micrometer Lab Stand
Designed for use when surface geometry
prevents using the handheld Micrometer
on a standard base.
Pages 16-17
Dino-Eye®Digital Camera
The Dino-Eye connects the Micrometer
to a laptop or tablet to create electronic
inspection records with detailed notes
and high-resolution images.
Pages 18-22
Microset®Surface Replication
Microset compounds provide a quick and
easy method of obtaining measurements
of damage in hard-to-reach places.

Lifetime Warranty
Technical Support
All J Chadwick Co (“JCC”) manufactured products
(“Products”) are covered by a limited lifetime warranty.
JCC warrants that the Products will perform substantially
in conformance with the published specications and be
free from defects of material and workmanship when
subject to normal, proper, and intended usage for the
lifetime of the products.
JCC agrees during the warranty period to repair or replace,
at JCC’s option, defective Products so as to cause the same
to operate in substantial conformance with published
specications.
THERE ARE NO REPRESENTATIONS OR WARRANTIES OF
ANY KIND, EXPRESS OR IMPLIED, AS TO MERCHANTABILITY,
FITNESS FOR PARTICULAR PURPOSE, OR ANY OTHER
MATTER WITH RESPECT TO ANY OF THE PRODUCTS.
This warranty does not cover cosmetic damage or damage
due to acts of God, accident, misuse, abuse, negligence or
improper operation or maintenance. Warranty is null and void
if repair or modication is attempted by anyone other than
JCC or its authorized representatives.
Repair or replacement as provided under this warranty is the
exclusive remedy of the consumer.
3
www.jchadwickco.com
suppor[email protected]
[phone]

4
Part Number List
PART# ITEM
8600C All-In-One Optical Micrometer Kit
8600R All-In-One: Microset Add-On
8600CK All-In-One: 8600C Upgrade
8600-25 Case, 8600C All-In-One Kit
8400K Optical Micrometer Kit
8400-7 Base, 3-Leg
8400-71 Base, 3-Leg Soft Tip
8400-8 Base, 4-Le
8400-12 Base, 3-Leg Offset
8400-14 Eyepiece, 20X
8400-15 Eyepiece, 10X
8400-16 Objective, 10X
8400-17 Objective, 4X
8400-23 Flashlight
8400-25 Case, 8400K Optical Mictometer Kit
8400-27 Tall Tripod Base 4.5”
8400-32 Scratch Sample Plate
8400-35 Base, Corner
8400-91 Base, Acrylic V-Block
5500L Lab Stand Kit, w/ X-Y Stage
5500K Lab Stand Kit, no X-Y Stage
5500-50 X-Y Stage
4400M Surface Replication Kit
4400-1 Dispensing Gun, 50ml
4400-2RTG Microset®, Thixotropic, 50ml, Grey
4400-2RFG Microset®, Fluid, 50ml, Grey
4400-31 Nozzle Pack, 50ml, 50/Pack
4400-4 Microset® Backing Slides,
60mm X 40mm, 50/Pack
4400-5 Microset® Backing Paper,
70mm X 60mm, 100/Pack
4400-6 Case, 4400M Surface Replication Kit
4400-7 Base, Tilting Stage
AM7025X Dino-Eye Eyepiece Camera

Optical Depth Micrometer
ORIGIN
Sets the absolute zero that
the tool will reference from
by default. Origin is preset
so the Micrometer will be
in focus on a at surface at
100X magnication.
in/mm
Toggles between US standard
(in) and metric (mm)
ZERO/ABS
Sets starting position
(temporary zero) for a
depth measurement.
ON/OFF
Turns the display
on or off.
Battery
SR44/LR44
Button Cell Battery
Digital Display Detail
Interchangeable
Objective
Interchangeable
Eyepiece
Focus Ring
Interchangeable
Handheld Base
Flashlight Ring
Digital Display
Optical
Depth
Micrometer
5

6
8400-7
Base, 3-Leg 8400-71
Base, 3-Leg, Delrin Tip
8400-8
Base, 4-Leg
8400-91
Base, Clear, V-Block
8400-12
Base, Offset
8400-35
Base, Corner
8400-27
Base, Large 3-Leg
Tripod bases are
used for most at
and simple curved
surfaces.
Use the 4-leg base
on broad convex and
concave surfaces.
Use the V-block base
for leading edges,
small diameters,
outside angles, and
at surfaces next to
an edge.
Use the offset base
on surfaces adjacent
to an edge or wall.
Use the 2-Leg corner,
or wedge, base on
inside angles.
Use the large tripod base is for
small parts (up to 2”) or with the
tilting stage base for inspection of
Microset® replicas.
4400-7
Tilting Stage Base
Interchangeable Bases
Delrin-tipped feet
protect windshields
and other delicate
nishes.

7
Optics & Other Components
To change the eyepiece, remove
from the Micrometer by pulling
it up and out. There are no
threads on the eyepiece tube.
Promptly replace the eyepiece to
prevent debris from entering the
Micrometer through the exposed
eyepiece tube.
To change the objective lens, rotate
the focus ring counter-clockwise
(focus down) to expose the objective
lens threads. Grip the objective and
turn clockwise to remove. Reverse
to install. Do not over-tighten the
objective lens.
8400-17
Objective, 4X
8400-14
Eyepiece, 20X
8400-16
Objective, 10X
8400-15
Eyepiece, 10X
Use the Scratch Sample Plate to
practice positioning and focusing
the Optical Micrometer.
8400-23
Flashlight
8400-32
Scratch Sample Plate
AAA Battery
Overall magnication is calculated by multiplying the power
of the eyepiece and objective lens; for example, using the 10X
eyepiece and the 10X objective will produce 100X magnication.
Note: The Dino-Eye camera has 20X magnication.
Use 100X and 200X to inspect small features, like corrosion pits.
Use 40X and 80X for wider features or to measure the thickness
of a transparent surface, like a windshield.
Mag Eyepc/Obj Accuracy Max Depth Field of View
40X 10X/4X +/- 0.001” 1.150” 0.18” Dia
80X 20X/4X +/- 0.001” 1.150” 0.10” Dia
100X 10X/10X +/- 0.001” 0.250” 0.07” Dia
200X 20X/10X +/- 0.001” 0.250” 0.04” Dia
Specications

8
Optical Micrometer Setup
Always use one hand
to hold the base steady
and prevent movement,
and the other to focus
the Micrometer.
The view through the
eyepiece is reversed. This
means that that when the
subject is moved left, the
image moves right.
Turn the Focus Ring so that the objective lens is over the
subject by approx. ¼” using the 10X Objective, or 1” with
the 4X (so the surface will be roughly in focus).
Once in position, use one hand to hold the Micrometer
steady, and the other to insert the ashlight into the base.
5
6
1/4”(10X)
Install optics for desired
level of magnication.
Install handheld base or
mount on a Lab Stand.
Position directly over the
damaged area.
Shine the ashlight down
into the eyepiece. A bright
spot will appear directly
below the objective, this
will be the center of the
eld of view. Position the
Micrometer so that the
bright spot is shining on
the edge of the step height
to be measured, like the
edge of a scratch or pit.
1
4
3
2

9
Measuring Depth
1Position the Micrometer so that the subject is in the center of
the eld of view.
2Focus on the top surface directly next to the recessed area (A).
3When the surface area is in sharpest focus, gently press the
ZERO/ABS button on the display to set a starting point for the
measurement.
4Without moving the Micrometer, focus down to the bottom of the
recessed area (B).
To nd the true lowest point, focus down passed what seems
to be the bottom until nothing else appears in focus below,
then come back up to the rst area that comes into sharp focus.
5Record the measurement from the digital display.
6Verify the measurement by refocusing up to the top surface (A).
The display should show “0.0000“ again.
Turn the Focus Ring so that the objective lens is over the
subject by approx. ¼” using the 10X Objective, or 1” with
the 4X (so the surface will be roughly in focus).
Once in position, use one hand to hold the Micrometer
steady, and the other to insert the ashlight into the base.
The Micrometer uses focus to measure the distance
between two points on different surfaces (at different
heights). Features at the same depth will appear in
focus and features above or below appear blurry.
Turn the Focus Ring to move the focus up and down.
The entire measurement cycle should be completed by
the same person. Always reset zero when switching users.
Focus Target
Field of View-
Top Surface
Field of View-
Bottom Surface
0.0045”

10
Transparent Surfaces
The method for measuring depth on a transparency (scribe lines,
for example) is the same as any other surface: focus on the surface
next to the damage, zero the display, and focus down to the bottom.
Measuring overall thickness is the same except that, instead of the
bottom of a pit, the second surface is the far side of the glass.
**VERY IMPORTANT**
When measuring overall thickness (only), the initial result on the
display is not accurate because the refraction index must be taken
into account. To calculate the overall thickness, multiply the result
on the display by the refraction index of the material.
A normal refraction index for transparent materials is approx. 1.5:
PMMA (acrylic, Lucite) 1.49
Plate/Window Glass 1.52
Polycarbonate (Lexan) 1.58
Tables of refraction indexes of other materials are available online.
Surface and embedded damage, like scratches and bubbles,
are air space and not subject to the refraction index.
Transparencies usually
have extremely shallow
surface marks, like
polishing lines and
micro-scratches, which
make it easy to focus on
the surface.
If it is difcult to locate
the surface, use a felt
pen to create a focal tar-
get point on either side
of the transparency.
Nearside
Farside