Rhopoint Optimap3 PSD User manual

Optimap3 PSD
A revolution in surface measurement
Operating Instructions
Thank you for purchasing this Rhopoint product.
Please read these instructions carefully before operating this product and retain them for future
reference. The images shown in this manual are for illustrative purposes only.
Manufactured by Rhopoint Instruments in the United Kingdom

2
Rhopoint Optimap3
This instruction manual contains important information about the setup and use of
the Optimap3™. It is therefore essential that the contents are read before powering
up and using the instrument.
If this instrument is passed to other users, you must ensure that the instruction manual is supplied with the
instrument. If you have any questions or require additional information about the Optimap™ please contact
the Rhopoint Authorised Distributor for your region.
The technology and components used in the device are based on state-of-the-art optic and electronics. As part
of Rhopoint Instruments commitment to continually improving the technologies used in their products, they
reserve the right to change information included in this document without prior notice.
© Copyright 2022 Rhopoint Instruments Ltd. All Rights Reserved.
Optimap™ and Rhopoint™ are registered trademarks or trademarks of Rhopoint Instruments Ltd. in the UK
and other countries.
Other product and company names mentioned herein may be trademarks of their respective owner.
No portion of the software, documentation or other accompanying materials may be translated, modified,
reproduced, copied, or otherwise duplicated (except for a backup copy), or distributed to a third party, without
prior written authorization from Rhopoint Instruments Ltd.

3
Rhopoint Optimap3
Contents
1Storage and Handling 4
2Instrument cleaning 4
3About the OptimapTM PSD 5
4Accessories 6
5Functional Overview 7
6Power 8
7Switching on the unit 8
8Operation 9
8.1 Main Screen 9
8.2 Profile Screen 11
8.3 Analysis Screen 12
8.4 Measurement Screen 15
8.5 Project Screen 17
8.5.1 No Opened Project Menu 17
8.5.2 New Project Screen 17
8.5.3 Project Menu 18
8.5.4 Close Batch 19
8.5.5 View Batches 19
8.5.6 Exporting Measurements 21
8.6 Settings Screen 27
8.6.1 Calibration 30
9Measurement Principle 31
10 Measurement Algorithms 32
10.1 O-Rough Algorithm 32
10.2 Altitude 32
10.3 Curvature 33
10.4 Texture 33
10.5 TAMS_STD 34
11 How to read *.res file format on PC 36

4
Rhopoint Optimap3
12 Instrument Specifications 37
13 Environmental Information 38
Storage and Handling
This instrument contains precision optics and electronics. You should therefore avoid knocking or
dropping the device as the resulting impact could cause serious damage.
In some circumstances the optical components in the instrument could become misted because of
temperature change. It is recommended that the instrument is not used until it has stabilised to
ambient temperature.
Ensure that the instrument is not exposed to moisture, chemicals or to any corrosive vapours.
Do not hold the instrument by the measurement aperture. No objects should be placed inside the
aperture as damage to the measuring system may occur.
The instrument housing and sample area locator are resistant to a variety of solvents however it
is not possible to guarantee resistance to all chemicals, therefore the surfaces of the instrument
should only be cleaned using a soft, moist cloth.
Prevent exposure of the instrument to direct sunlight for prolonged periods and to continuous
humidity and condensation.
Instrument Cleaning
It is recommended to regularly check that the internal screen is clean. Too much dust inside could affect
readings and measurement results.
Nevertheless, if dust is noticed inside the instrument, it is highly recommended to gently use pressurised
clean air to clean the inside of the unit.
In case dust dot would not go off, the user can also use a clean cotton swab with a little bit of alcoholic
solution.

5
Rhopoint Optimap3
About the OptimapTM PSD
Optimap™ PSD – The technology
Optimap™ PSD is an advanced portable handheld instrument capable of performing fast, full field 3D surface
measurements.
Using an optical measurement technique known as Phase Stepped Deflectometry (PSD) it objectively
measures and characterises many aspects of surface quality including texture, waviness and local defects
including orange peel, inclusions, dents, and scratches.
The instrument has a large area of measurement (65 mm x 54 mm) allowing the instrument to analyse larger
structure sizes that are visible from longer distances.
A lateral resolution of 37µm and fixed reference plane also allows the device to detect surface defects that are
invisible to the naked eye.
Optimap requires no movement over the surface as all measurements are made optically therefore
preventing any damage during operation. Although surface contact is needed, the devices measurement port
is rubberised to protect it during operation. Measurement results are displayed in graphical, image map and
numeric format according to the measurement scale selected.
A wide range of surface finishes can be measured from low gloss (2.0GU@60°) to mirror finish allowing the
complete characterisation of manufacturing processes from machining, moulding, and forming, through to
surface preparation and final coating.
Further technical information about PSD can be found later in this manual.

6
Rhopoint Optimap3
Accessories
The instrument is supplied as a standard package complete with all accessories needed to calibrate and
recharge the unit including: -
• Optimap3™ PSD Instrument
• Calibration tile
• Check tile
• Mains charger
• SD card with software and manual.
• Protective instrument carry case
.

7
Rhopoint Optimap3
Functional Overview
Label No. Function
1Power button
2Touch screen display
3Harness attachments
4SD card slot
5Ethernet
6Battery charger connector
7USB connector
8Carry handle
9Measurement port
1
2
3
45 6 7
3
9
8

8
Rhopoint Optimap3
Power
The Optimap™ PSD is powered by an integrated high-capacity lithium ion battery.
Fully charged the instrument will operate for approx. 3 hours depending on usage.
A mains powered battery charger is provided with the unit allowing it to be fully charged, when connected to
the unit’s charger input (4), in under 5 hours. The instrument can also be used with the charger plugged in. The
charging time will be longer if the instrument is used during charging. Battery status is shown by the indicator on
the front screen (2).
Lithium-ION cells do not suffer from “memory effects” so it will not reduce the life of the battery if the charger is
used to top up the battery between readings.
Switching on the unit
To switch Optimap on press and hold the Power button (1) found on the top right-hand side of the instrument
until an audible beep has been sounded, and then release the button.
The instrument will power up and when ready will display the main measurement screen, as shown in the next
section. The operation of the device is detailed in the next section.
To power the instrument off, press the Power button (1) until five audible beeps are heard. The instrument will
then safely enter its power down cycle.

9
Rhopoint Optimap3
Operation
Main Screen
The touch sensitive icon-based measurement screen provides operation and setup of the device. By pressing
each of the icons or active areas shown on the screen the instrument responds in a different way according to
the function.
The central window displays the last acquired or loaded map. On the right side of the window is the legend
which shows the minimum and maximum values in the displayed map, as well as the heat map colours
associated with them.
To the right of the measurement main screen there are six buttons to access the main features of the
instrument. In order these are:
• profile screen
• analysis screen
• live view button
• delete last measurement
• project menu
• settings menu
Measurement
data
Measurement
graph
Instrument status
message Project name Series/Batch
number Measurement
number
Battery level
indicator
Settings menu
Delete last
measurement
Project menu
Live view
button
Analysis
screen
Profile
screen

10
Rhopoint Optimap3
Each of these features are displayed in the next section.
Results are also displayed in numerical format in the results window at the left-hand side of the screen.
At the bottom of the screen below the map image, Project Name, Series / batch number, and Measurement or
count number indicators allow the storage and management of measurement results. Measurements are saved
by the Optimap in a logical sequence allowing clear identification of the surface being measured.
The naming method used for these will differ according to application, however it is the Project name that is the
key field holding all measurement data for each series.
For example, a typical naming setup for an automotive measurement would be to use the vehicle name or
model number as the Project Name and the surface to be measured, left door, right door etc as the Series.
Measurements can then be made according to requirement with each being stored as a separate measurement
number over the surface.
In the right of the map window of the main screen, a scale is displayed corresponding to the image displayed in
the map window.

11
Rhopoint Optimap3
Profile Screen
The profile screen can be accessed by pressing the button on the top right of the main screen.
The profile has two modes; either the pins can be moved independently anywhere on the map, or the length of
the profile and relative positions of the pins is fixed, and the entire profile is moved.
Pressing the button enables free pin mode and pressing button enables the rigid profile mode.
To move the entire profile or one of the pins, using the touchscreen press and hold onto the box representing the
pin. Once the pin has been selected drag into place. The pins need to be selected precisely which may require
some repositioning of the map to allow the best access to the pin.
Measurements can be taken from this screen to view the same profile on a new measurement by pressing the
button and then the button.
The main screen can be reached by pressing the button or any of the other screens can be accessed
directly by pressing the appropriate button.
The magnification level can be adjusted by moving the magnification slider, the level of which is displayed above
the slider.
A PDF report can be generated and saved to the SD card of the profile screen displayed by pressing the
button in the top lefthand corner of the display.
Print to PDF
Magnification
level
Local min/max
Swap pin
positions
Toggle free pin
and rigid pin
modes
Blue pin
Return to
main screen
Magnification
slider
Red pin
Profile length

12
Rhopoint Optimap3
Analysis Screen
The analysis screen is accessed by pressing the button.
The analysis screen is used to interact with the map in more ways than the main screen allows. These include
a larger window, moving and rotating the map, changing the zoom level, changing the amplification level,
changing crop values, and resetting to default settings.
Pressing the button allows the min. and max. altitude values that are shown to be changed.
Zoom
level
Amplification slider
Back button
Reset
button
Auto Range
Crop button
Zoom
slider
Amplification length

13
Rhopoint Optimap3
The values can be changed by using the zoom and amplification sliders on the left (the min. value) and on the
bottom (the max. value) and saved by pressing the button.
These cropping values will be used on all future measurements however they can be reset to default values for
the current map by re-entering the crop screen.
To exit the analysis screen press the button. The zoom level, amplification level, crop values, and map
position will be kept for future measurements.
To reset them back to the defaults, right for the current map, press the button.
All buttons that appear greyed out are not functional during this process.
Any of the surface maps can be cropped to display a user defined area. To do this press the crop button, a new
screen will be displayed as shown below

14
Rhopoint Optimap3
The current area (ROI) is defined by the borders of the Red and Blue pins.
To change the ROI press and hold either the Red or Blue pins and move to the required position on the surface.
Release when selected.
To save the new ROI press the button, to delete the new ROI press the button.
Once the new ROI is saved the screen will display a reprocessing message and then display the map of the new
ROI/.

15
Rhopoint Optimap3
Measurement Screen
The measurement screen shows the steps that the main screen goes through while taking a measurement.
A measurement is only commenced after checking the live view. The live view is started by pressing the
button on the main screen. This opens the live view window which shows an image from the camera of the
surface to be measured allowing the instrument to be positioned correctly.
A measurement is started by pressing the button or the live view can be cancelled by pressing the
button. The measurement button can be pressed straight away for a correctly positioned measurement. For
the first measurement after the instrument is turned on or when the surface to be measured is changed the
image could be too dark or light. This will be corrected after the first measurement, which can be deleted if not
suitable. The measurement process is described below.
Cancel live
view button
Measurement
button

16
Rhopoint Optimap3
1. When the measurement button is pressed it will grey out to show that the instrument is taking a
measurement. The status bar will turn red and acquisition warning (!) will show to illustrate that the
instrument should not be moved while acquiring images, to be used in the calculation. The status message
will show that the instrument is in the “Taking Measurement” part of the process. The only button that is
active during the measurement process is the cancel measurement button , which can be pressed to
cancel the measurement.
2. When the image acquisition has finished the acquisition warning will disappear and the status bar will turn
green to illustrate that the instrument can now be moved while the calculation is taking place. The status
message will be updated accordingly.
3. The calculation has now finished, and the 3D altitude map is being rendered to the map window.
4. The measurement is now finished. The map is displayed in the map window and graphical results,
depending on the algorithm selected, are displayed in the bottom left corner. The measurement
identification tracking is updated, and the status message shows “Ready”. The cancel button is replaced by
the delete last measurement button , which can be used to delete the last measurement taken if not
wanted. All buttons are now active to take another measurement, analyse the current measurement, change
settings or any of the other features described in this manual.
Cancel
button
Graphical
results
Map
window
Delete
button
Acquisition
warning
Status
message
1122
3344

17
Rhopoint Optimap3
Project Screen
Measurements are organised into projects, batches, and counts. This organisation is done in the project screen,
which can be accessed with the button. If no initial project has been created or the current project has
been closed the project label will display “NO PROJECT”. In this state measurements are displayed but not
saved. This mode also allows the surface type and algorithm to be changed freely.
No Opened Project Menu
When the instrument is in an unopened project state the following screen is displayed.
To start a new project, press the “New Project” button.
New Project Screen
Enter the project name using the onscreen keyboard and press save. The instrument will now enter the open
project menu.
Start new
project
Open existing
projects
Export
existing
projects

18
Rhopoint Optimap3
Project Menu
The options within the project menu are:
Close Batch - Once the project holds measurements, associated measurements can be isolated in a batch
View Batches - This is the way to view earlier measurements
Close Project - This returns to the no opened project menu, where a new or existing project can be
opened, and measurements made in free mode, and all stored projects can be exported to SD card.
Export Project - This displays the project export menu where the measurements from the open project
can be exported to SD card.
Delete Project - Deletes all measurements within the open project and removes the project itself.
Delete measurement - This performs the same process as the delete last measurement button.
The project menu can be closed by pressing the button, to prepare and start a measurement.
Project
name Close batch
View
batches
in project
Export
project to
SD card
Delete last
measurement
Close project
Delete entire
project

19
Rhopoint Optimap3
Close Batch
Closing the batch groups associated measurements with a recognisable name. Individual measurements
are numbered in the order they are taken starting with measurement 1. Batching the group also creates an
artificial measurement with values taken from the average of the measurements in that batch. The average
measurement is labelled as count 0. With an open project closing the batch is the only way to allow the surface
or measurement algorithm to be changed.
The desired name is entered using the on-screen keyboard. The default name of the batch number can be
changed if not required using the “bksp” key and entering the new name and pressing the save button. Each
batch within a project must have a unique name.
Back
button
Batch
name
Save
button
View Batches
The view batches screen is the place to view previous results and load saved maps, as well as to close the
current batch.
Open
batch
Close
batches

20
Rhopoint Optimap3
Until the latest batch is closed, from the project menu, the batch name is “TEMP”.
A batch can be further inspected by pressing on the entry.
Individual counts can be viewed by pressing on the entry.
Batch
name
Algorithm
used for
batch
Counts in
batch
Batch
name
Counts
in batch
Back
button
Scroll
buttons
Count ID
Algorithm
used for
count