Vision Engineering Mantis Troubleshooting guide

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E N G I N E E R I N G
Mantis Stereo Viewing System
Operating Instructions
And
Service Manual
Use this manual only after assembling the Mantis Viewing system.
After assembling the Mantis Stereo Viewing System you should be familiar with its various
components. These instructions will help you become familiar with the operation and use of the
Mantis as well as some of the available options. Also included in this manual is a more
comprehensive maintenance, troubleshooting and service guide.
NOTE: REFER TO THE MANTIS USER GUIDE AS REQUIRED
1/Mantis/7/98

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CONTENTS Page
1) System Diagrams ………………………………………………………………….. 2
Mantis Universal Boom Mount…………………………………………………….. 3
Mantis FX Bench Mount……………………………………………………………. 4
1) The Basic Systems …….…………………………………………………………. 5
1) Objective Specifications …………………………………………………………. 7
1) Using the Mantis ……………..……………………………………………………. 9
Turning the Power “ON” …………..……………………………………………….. 10
Focusing ………….…………………………………………………………………. 10
Adjusting the Lighting ……………………………… …..……………………….… 10
Changing the Magnification ……………………………………………………….. 11
Adjusting the Eye Spacing ……………………………………………………….. 11
5) Options ……………………………………………………………………………… 12
Lens Protective Covers ……………………………………………………………. 13
6) Maintenance ………………………………………………………………………. 14
Lamp Replacement …………..……………………………………………………. 15
Lens Cleaning …………….………………………………………………………… 15
Moisture Control ……………………………………..……………………………… 15
Optical Path Alignment …………………………………………………………….. 15
Fan …………………………………………………………………………………… 15
7) Troubleshooting …………………………………………………………………… 16
Mantis has No Power ….…………………………………………………………… 17
Optical View …………… …..………………………………………………………. 17
8) Service ………………………………………………………………………………. 18
Cleaning the Mirrors ……………………………………………………………….. 19
Fan Replacement …………………………………………………………………… 20
Repairing Eye Spacing Adjustment ………………………………………………. 21
Mirror Removal ……………………………………………………………………… 22
9) Warranty ……………………………………………………………………………. 23
10) Information …………………………………………………………………………25

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SYSTEM DIAGRAMS

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SYSTEM DIAGRAM
MANTIS UNIVERSAL BOOM MOUNT
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E N G I N E E R I N G
Description User Guide Des. Part No.
1. Yaw Bolt Cover Cover Plate 187-A-0079
2. Yaw Bolt Assembly Yaw Spigot YB-A-001
3. Anti-glare Shield Anti-glare Shield 187-B-0090
4. Adj. Friction Handle Height Friction Clamp HAN-0567
5. Table Mount Base Universal Mount 187-C-0258
6. C Clamp Assembly G Clamp HDW-1092
7. Power Switch SWI-0122
8. Switch Cover 187-A-0111
9. Fan Cover Assembly 187-A-0211
10. Desiccant(10 pack) Desiccant Cartridge M006
11. Grommet HDW-1030
12. Turret Assembly 187-A-0208
13. Filter Tray - Left 187-C-0076
14. Filter Tray - Right 187-C-0075
15. Lamp Diffuser 187-A-0115
16. Lamp Diffuser(Blue) 187-A-0115A
17. Lamp, 12volt, 20watt LAM-1300
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MANTIS FX BENCH STAND
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E N G I N E E R I N G
Description User Guide Des. Part No.
1. Yaw Bolt Cover Cover Plate 187-A-0079
2. Yaw Bolt Assembly Yaw Spigot YB-A-001
3. Anti-glare Shield Anti-glare Shield 187-B-0090
4. Focusing Thumbwheel
5. Focusing Platform 187-D-292*
6. Surface Lighting Switch
7. Substage Lighting Switch
8. FX Base 187-C-0310
9. Fan Cover Assembly 187-A-0211
10. Desiccant(10 pack) Desiccant Cartridge M006
11. Grommet HDW-1030
12. Turret Assembly 187-A-0208
13. Filter Tray - Left 187-C-0076
14. Filter Tray - Right 187-C-0075
15. Lamp Diffuser 187-A-0115
16. Lamp Diffuser(Blue) 187-A-0115A
17. Lamp, 12volt, 20watt LAM-1300
*Requires Sub-Assembly 187-B-307
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SYSTEM DIAGRAM

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The Basic Systems

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2) The Basic Systems
The Mantis Stereo Viewing System is a powerful optical inspection system. The patented optical
technology provides a bright, crystal clear overhead image in a fatigue free viewing environment.
Long working distance offers ample room for rework and part rotation.
Mantis systems are available in two versions. One version is the boom mount (refer to page 3 of
this manual) which can be mounted on almost any table surface. This is good for general
inspection, viewing and rework, especially in a production environment. The other version is the
Mantis FX (refer to page 4 of this manual). This version has a portable stand that resembles a
traditional microscope stand. This version is better suited to off-line inspection.
Each Mantis system can be equipped with any two of the objective lenses listed below. It is
common to use a lower magnification lens (such as 2X or 4X) for general inspection and a
higher magnification lens (such as 8X or 10X) for closer inspection of possible defects.
Mantis - Boom Mount
Description Vision Engineering Inc. Part No.
1) Mantis viewing head M001
2) Mantis Boom Mount M003
Mantis FX - Bench Stand
Description Vision Engineering Inc. Part No.
1) Mantis viewing head M001
2) FX Bench Stand M002
Objectives - For use with either system
Description Vision Engineering Inc. Part No.
1) 2X Magnification Lens M222
2) 4X Magnification Lens M444
3) 6X Magnification Lens M004
4) 8X Magnification Lens M008
5) 10X Magnification Lens M009
6) 6X SLWD Magnification Lens M013
The 6X SLWD magnification lens has a much longer working distance than the standard 6X
magnification lens. It is specifically designed for rework applications.

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Objective Specifications
3) Objective Specifications

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The Mantis objectives provide different levels of magnification ranging from 2X to 10X. As
magnification changes, working distance (the distance between the objective lens and the
subject when properly focused), field of view (the area of subject that is visible in the viewing
screen at any one time) and depth of field (the maximum subject height variation that will remain
in focus) also change. The chart below shows the characteristics of each lens.
Lens Working Distance Field of View Depth of Field
2X 171 mm ~ 6.7 in. 56 mm ~ 2.2 in. 25 mm ~ 1.0 in.
4X 86 mm ~ 3.4 in. 28 mm ~ 1.1 in. 11 mm ~ 0.4 in.
6X 55 mm ~ 2.2 in. 20 mm ~ 0.8 in. 5 mm ~ 0.2 in.
6X SLWD 112 mm ~ 4.4 in. 20 mm ~ 0.8 in. 5 mm ~ 0.2 in.
8X 41 mm ~ 1.6 in. 15 mm ~ 0.6 in. 3 mm ~ 0.1 in.
10X 41 mm ~ 1.6 in. 12 mm ~ 0.5 in. 2.5 mm ~ 0.1 in.

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Using the Mantis
4) Using the Mantis

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Turning the Power “ON”
Boom Mount (refer to page 3 of this manual)
There is one power switch for the Mantis boom mount system. It is located on the front panel of
the vertical support column. Flip the switch to energize the Mantis illuminator
FX Bench Stand (refer to page 4 of this manual)
There are three power switches for the Mantis FX bench stand system. The first is the main
power switch. It is located on the back of the bench stand vertical support. When energized the
switch is illuminated. The remaining power switches are on the front of the bench stand vertical
support. The upper switch powers the main illuminator incorporated in the Mantis viewing head.
The lower switch powers the substage illuminator built into the focusing platform.
Focusing
All of the Mantis objective lenses (except 2X) are parfocal. This means that the image stays in
focus when switching between objectives without re-focusing. For best results always focus
with the highest magnification lens, then switch to the lower magnification.
Boom Mount (refer to page 3 of this manual)
To focus the boom mount Mantis system move the Mantis viewing head “UP” or “DOWN”.
(Before moving the Mantis head always loosen the boom friction clamp lever located on the right
side of the boom mount pivot). To facilitate focusing there are 4 plastic lugs located on the
underside of the Mantis head. Hold one of the lugs between your thumb and index finger and
gently move the head until proper focus is obtained. Tighten the boom friction clamp.
FX Bench Stand (refer to page 4 of this manual)
To focus the FX bench stand locate the focus adjustment wheel on the front, right hand corner of
the bench stand base plate. Turning this wheel will move the focusing platform “UP” or
“DOWN”. With a subject on the focusing platform look into the viewing screen and turn the
focus adjustment wheel until a clear image is obtained.
Adjusting the Lighting
The main illuminator built into the Mantis viewing head features an adjustment to optimize lighting
for different applications. The illumination adjustment is a horizontal disc on the right side of the
Mantis viewing head. Rotate the disc while looking into the viewing screen until optimal lighting is
achieved.
4) Using the Mantis (con’t)

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Changing the Magnification (refer to pages 3 or 4 of this manual)
Both Mantis systems use a turret assembly to allow the user to select between two different
magnification levels. Objective lenses are screwed onto the threaded turret underneath the
Mantis viewing head.
After two objectives have been selected and screwed into place on the Mantis turret, they can be
switched using the objective selection lever. The lever is located on the left side of the Mantis
viewing head. The objective selection lever can be moved into two positions. Each position
corresponds to a different objective lens being activated. Select the position that provides the
magnification required for your application.
Adjusting the Eye Spacing (IPD)
The Mantis has an adjustment for different eye spacing. The Inter-pupilary Distance (IPD) must
be adjusted to obtain a comfortable view. The IPD adjustment is located on the right side of the
Mantis viewing head. While looking in the viewing screen rotate the adjustment knob (the left
side optical path will move “LEFT” or “RIGHT”) until a comfortable view is achieved.
Note: This adjustment is very important to comfortable and effective inspection. It must be re-
adjusted for every individual using the Mantis.

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Options
5) Options
Lens Protective covers

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All mantis objectives can be fitted with a replaceable, clear plastic protective cap. These
inexpensive caps protect the objective lens from damage and are especially useful when using
the Mantis for rework operations. Choose from the chart below.
Lens Vision Engineering Part No.
2X, 4X, 6X, 8X M010
6X SLWD M016
10X M011

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Maintenance
6) Maintenance
Lamp Replacement (refer to pages 3 or 4 of this manual)

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Replace the lamps using the following procedure.
1) Remove the Mantis viewing head by removing the Yaw Spigot nut.
2) Turn the Mantis viewing head upside down.
3) Remove the lamp cover (filter tray) by sliding it away from the Mantis head. Do not allow the
diffuser lens to drop when removing the lamp covers.
4) Pull the lamp out by holding it between your thumb and index finger.
5) Replace lamp.
6) Reassemble by reversing previous steps.
Lens Cleaning
Clean the objective lens using a lint free cloth. An anti-static cleaner may be used to reduce
static charging.
If frequent contamination is experienced it is recommended to use the optional Protective Lens
Covers.
Moisture Control (refer to pages 3 or 4 of this manual)
The Mantis head is equipped with a blue desiccant cartridge for moisture control. This should be
checked regularly. When the desiccant turns pink it is ready for replacement.
To replace the cartridge remove the rubber plug under the Mantis viewing head, pull out the
desiccant cartridge, replace and re-install the rubber plug.
Replace with Desiccant 10 pack, Part No. M006.
Optical Path Alignment
It is a good idea to periodically check the Optical Path Alignment of the Mantis stereo view. Look
into the viewing screen from a distance of 12”. The view will appear as two illuminated circles.
These two circles must be horizontally aligned within 2/3 of their diameter of each other.
Improper alignment will cause imaging problems.
If the illuminated circles are out of alignment then they can be adjusted. Locate the large Phillips
screw head on the back of the Mantis viewing head (this screw head is locked in place with black
silicon). While still looking at the viewing screen from a 12” distance, adjust the screw until the
two paths are in acceptable alignment.
Fan (refer to pages 3 or 4 of this manual)
Blow out the fan assembly with CLEAN, DRY AIR (up to 100 PSI) at least once a month to
prevent excessive particulate build-up. This will maximize fan life.

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Troubleshooting
7) Troubleshooting
Mantis has no power

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If the Mantis head has no power and the illuminator will not come “ON” then check the following
items:
•Is the Mantis power cord plugged in?
•Is the wall outlet functioning properly and supplying sufficient voltage?
•Is the fuse in the Mantis support column in good working condition?
Optical View
If over time the optical view of the Mantis has degraded, check for the following:
Are the objectives dirty or damaged?
•Dirty or damaged lenses will cause an inferior image.
Are both lighting lamps functioning properly?
•Both lights must be working to supply sufficient light.
Is the Eye Spacing control properly adjusted?
•The eye spacing adjustment must be set correctly to obtain a comfortable view.
Has the lighting adjustment been used to optimize the lighting?
•Optimized lighting is important to maintaining a clear image.
Have the Mirrors within the Mantis head become dirty?
•Mirrors contaminated with particulate will impede image performance.
Is the viewing screen dirty?
•Clean the viewing screen regularly to prevent dirt build-up from degrading the image.
Has the Optical Path alignment been checked?
•Proper Optical path alignment will greatly improve viewing ease.

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Service
8) Service

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Should the Mantis stereo viewing system require service the unit may be returned to Vision
Engineering Inc. Some of the simpler repair procedures are discussed here to prevent
excessive downtime.
Cleaning the mirrors
The mirrors within the Mantis viewing head can be cleaned. These mirrors are very delicate and
can only be blown off with clean, dry air. Never wipe the mirrors with any type of cloth.
Required Tools:
Small Phillips screwdriver
Medium Phillips screwdriver (magnetic preferred)
Work in a dust free environment
1. Remove the Mantis viewing head from its support by removing the Yaw bolt.
2. Rest the viewing head upside down (objective turret facing “UP”)
3. Remove the two screws on the rear of the viewing head.
4. Remove both filter trays to gain access to the lamps. Do not allow the diffuser lens to drop
when removing the lamp covers.
5. Remove the screw located in each lamp socket.
6. The lower viewing head assembly (black lower section) should now be removable
7. Turn the lower viewing head assembly over to prevent dust accumulation on the mirror.
8. Without Touching the Mirrors, blow off mirrors with CLEAN, DRY AIR while holding unit
upright. Ensure that any dust falls out of the viewing head.
9. If any contaminant is on the beam splitter, it can be gently wiped with a soft cloth.
10. Reassemble by reversing the disassembly instructions.
8) Service (con’t)
Fan Replacement