Gardco 8400K User manual

PAUL N GARDNER COMPANY
9104 GUILFORD ROAD, SUITE H EMAIL [e-mail]
COLUMBIA, MD 21046 USA PHONE [phone]

P/N 8400K
DIGITAL OPTICAL MICROMETER KIT
NSN 6650-01-220-8942
SERIAL# ______
CONTENTS
Page 2
DIAGRAM & PARTS LIST
Page 3
SPECIFICATIONS
Page 4-5
INSTRUCTIONS
Page 6
CALIBRATION PROCEDURE
& CERTIFICATE
Page 7
WARRANTY INFORMATION
Page 8
TECHNICAL SUPPORT
Contains 12 pcs:
RENE PART# ITEM
8400-0 Digital Optical Micrometer
8400-17 4X Objective Lens
8400-16 10X Objective Lens
8400-15R 10X Reticle Eyepiece
8400-14 20X Eyepiece
8400-31 Allen Wrench
8400-7 Base: 3 – Leg
8400-8 Base: 4 – Leg
8400-9 Base: Clear Plastic
8400-25 Case
8400-23 Flashlight
8400K
PARTS
LIST
8400-32 Scratch Sample Plate
MANUAL
DIAGRAM AND PARTS LIST
8400K
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MANUAL PAGE 2
Taking the guesswork out of visual inspection.

A DIMENSIONS & WEIGHT
1. 8400K KIT IN CASE
16” x 7” x 5” , 5 LBS
2. 8400-0 MICROMETER ONLY
9” HEIGHT
2” DIA STEM, 3” DIA BASE
1.5 LBS
B ACCURACY & RESOLUTION
In inches, the digital readout shows four places right of the
decimal; “0.0000”. The far right (ten-thousandths) rounds-
off and reads “0” or “5” (0.0000 or 0.0005).
In millimeters, the readout shows two places right of the
decimal; “0.00”. The far right (hundredth-mm) place reads in
0.01 mm increments.
RESOLUTION 0.0005” / 0.01 mm
ACCURACY +/- 0.001” / 0.02mm
C RANGE
1. 10X OBJECTIVE LENS
Vertical range (or depth) 0.250” (6.4mm)
from surface to bottom of scratch.
A Width of 0.040” (0.02mm) can be measured with the
reticle eyepiece and 10X objective lens.
Overall field width: 0.065”.
FOR WIDTH MEASUREMENTS USE THE 10X RETICLE
EYEPICE AND THE 10X OBJECTIVE LENS ONLY.
1. 4X OBJECTIVE LENS
Vertical range (or depth) 1.250” (32mm)
from surface to bottom of scratch.
Overall field width: 0.150”
DO NOT USE 4X OBJECTIVE LENS WITH RETICLE
EYEPIECE TO MEASURE WIDTH, READINGS WILL NOT
BE ACCURATE.
D TEMPERATURES
OPERATING 0ºC to 40ºC / 32ºF to 140ºF
STORAGE -10ºC to 60ºC / 14ºF to 140ºF
NOTES
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SPECIFICATIONS
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A. NON – TRANSPARENT MATERIALS
USE 10X OBJECTIVE LENS AND 10X RETICLE EYEPIECE.
NOTE: 10X OBJECTIVE LENS FOCUSES APPROX. 0.250”
ABOVE THE TARGET.
DEPTH MEASUREMENT
1. Set the height of the OBJECTIVE LENS at approx. 0.250” over
the target.
2. Shine the FLASHLIGHT down through the top of the EYEPIECE.
A small light “spot” will appear beneath the OBJECTIVE lens, use
this to locate or “spot” the target.
3. Insert the FLASHLIGHT into base.
4. Look through EYEPIECE and focus and position over target.
5. Hold the base of the micrometer for support while focusing to
prevent it from moving.
6. Bring undamaged surface near scratch (surfaceA in diagram on
next page) into sharp focus, and press the “ON/ZERO” button
(display should now read “0.0000”).
7. Focus into bottom of scratch (surface B in diagram on next page),
without moving micrometer. DEPTH is shown on digital display.
8. Repeat steps 5.-6 for verification and record results.
WIDTH MEASUREMENT – 10X RETICLE EYEPIECE
USE 10X RETICLE EYEPIECE AND 10X OBJECTIVE LENS
ONLY.
DO NOT USE 4X OBJECTIVE LENS WITH RETICLE EYEPIECE
TO MEASURE WIDTH, READINGS WILL BE INACCURATE.
Depth and thickness measurements are fine with this combination.
1. Locate target per steps 1. – 4. above.
2. Focus on target.
3. Rotate EYEPIECE to align scale with target.
4. Observe and record width.
WIDTH RANGE: 0.000”-0.040” (0.00-1.00mm),
increments of 0.001” (0.010”mm).
B. TRANSPARENT MATERIALS
USE 4X OBJECTIVE LENS and 10X RETICLE EYEPIECE.
NOTE: 4X OBJECTIVE LENS FOCUSES APPROX. 1.30” OVER
THE TARGET.
THICKNESS MEASURMENT
1. Focus on nearside, set display to 0.0000”
2. Focus on far side and record depth.
3. Multiply result by 1.5 (index of refraction for most
transparencies. Check index of subject material).
RANGE: UP TO APPROX. 1.8” THICK TRANSPARENCY.
INSTRUCTIONS FOR USE INSTRUCTIONS FOR USE
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Calibration is recommended once per year to ensure proper
function and accuracy of the 8400K.
Metrology labs can provide a NIST traceable certificate of calibration
(with measurement data) using this procedure.
A.EQUIPMENT
One set of gage blocks, current and traceable to N.I.S.T.
B. INSTRUCTIONS
1. Slide one gage block lengthwise across the top of the other,
creating a step at the end. (The blocks "ring" together with this
method.)
2. Place micrometer over the “step” and focus on the top of the
upper gage block. Position so approx. one-half of the viewing
field is on upper block.
3. Set digital display to “0.0000”
4. Focus on lower gage block. Display should show thickness of
upper block.
Suggested gage block sizes:
BOTTOM 0.1000”
TOP 0.0625” , 0.2000” , 0.5000” , 1.0000”.
(Use 4X Objective for 0.2500” and above.)
CALIBRATION PROCEDURE
Calibration is recommended once per year to ensure proper
function and accuracy of the 8400K.
Metrology labs can provide a NIST traceable certificate of calibration
(with measurement data).
SERIAL#
TEST# TEST DATE
INSPECTOR:
LOCATION: □RENE CO. INSPECTION DEPARTMENT
□PRIMARY INSTRUMENTS INC. □OTHER LAB/AGENT
TEMP: _____ ºF ºC HUMIDITY ________ %
Calibration Test: In Tolerance
Procedure: G.A.C.T.*
Accuracy: +/-0.001 IN.
This instrument meets this standard.
Remarks
*Generally accepted calibration techniques.
Procedure: Observe gage block thickness through optical micrometer.
Calibration is provided at a 4:1 TEST UNCERTANTITY RATIO (TUR) unless
otherwise stated. This certificate may not be reproduced, except in full.
CALIBRATION CERTIFICATE
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