Cortex DSM-4 Instructions For Use Manual
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Cortex DSM-4 Instructions For Use Manual

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Z22220.05 EN
Released 20241002
Colorimeter DSM-4
Instructions for use
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Summary of Contents for Cortex DSM-4

  • Page 1 Z22220.05 EN Released 20241002 Colorimeter DSM-4 Instructions for use...

  • Page 2: Table Of Contents

    4.2 Gloss............................6 4.3 Melanin index (MI) ........................6 4.4 Erythema index (E) ........................7 5 Colorimeter DSM-4 device ....................... 7 5.1 Operation of the push-button ..................... 7 5.2 How to perform a measurement ....................8 5.3 Color-correction matrix ......................8 5.4 Battery and charging ........................

  • Page 3: Symbols

     Avoid exposure to water. If exposed to smaller amounts such a rain, allow for the device to completely dry and consider contacting Cortex support for aid in assessing if the exposure has affected the integrity of the device. ...

  • Page 4: Radio Module Information

    Z22220.05 EN Released 20241002 3 Radio module information The Colorimeter DSM-4 contains a Bluetooth version 2.1 radio module. ® Model: RN42 FCC ID: T9J-RN42 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

  • Page 5: Introduction

    Z22220.05 EN Released 20241002 4 Introduction The Colorimeter DSM-4 is a handheld instrument for measurement of color and gloss. Color measurement is based on diffuse reflectance spectroscopy in a 45°/0° configuration while specular gloss is measured in a 60° configuration.

  • Page 6: Gloss

    Z22220.05 EN Released 20241002 Figure 1: Principle of the 45°/0° configuration. The test sample is illuminated from an angle of 45° using four circularly arranged D65 light sources. The reflected diffuse light is then detected at 0° using a full visible spectrum color sensor (10°...

  • Page 7: Erythema Index (E)

    The device will automatically power off when not used for 60 seconds (default). The time for automatic power-off can be changed in the Colorimeter DSM-4 software. Input from the push button is ignored during a measurement. An acoustic signal from a buzzer will indicate...

  • Page 8: How To Perform A Measurement

    5.3 Color-correction matrix A Color correction matrix is used on the DSM-4 probe to ensure the most accurate readout based on what range of colors the DSM-4 probe is being used on. Two different Color correction matrices are available on the Colorimeter DSM-4. Section 6.3.5.1.3 covers how to change the current optimization matrix using the Colorimeter DSM-4 software.

  • Page 9: Calibration

    Colorimeter DSM-4. During a Calibration the DSM-4 probe display will indicate which calibrator slot should be used (if using the Colorimeter DSM-4 software, information will also be displayed on the pc). A beep will be used to indicate if a measurement on a given slot is accepted or rejected. Rejection of calibration can happen either due to dirty working standard or a bad measurement.

  • Page 10: Colorimeter Dsm-4 Software

    This section will cover the Colorimeter DSM-4 Software providing extended features for the Colorimeter DSM-4 device. The Software will provide a user interface for interacting with the Cortex Colorimeter DSM-4. The user interface provides functionality for displaying and saving multiple readouts sent from the Colorimeter as well as several configuration options such as measurement types and screen orientation of the Colorimeter.

  • Page 11: Pairing A Device

    Open Windows settings and enter Bluetooth and other devices menu click on “Add Bluetooth or other devices”. Make sure the Colorimeter DSM-4 Software is not currently running while pairing, if the device is paired this way, while the software is running the software will need to be restarted to recognize the pairing.
  • Page 12 Z22220.05 EN Released 20241002 Figure 7 Connection Pop-up If no Colorimeter probes have been previously paired the “Connect” button will be greyed out. Pressing the “Pair new device” button will open up the Bluetooth pairing menu as shown in Figure 8. Figure 8 Bluetooth Pairing Menu If a Colorimeter probe is on previous step, it should be available in the device list shown in Figure 8.

  • Page 13: Connecting To A Device

    Z22220.05 EN Released 20241002 Figure 9 Device identified in list with pair button enabled 6.2.3 Connecting to a Device After pairing has completed through either process described in 6.2.2 a connection to the Colorimeter probe can now be established. 6.2.3.1 Connecting to a specific device If a Colorimeter is to be connected for the first time or several Colorimeters are paired requiring specification of which colorimeter to connect to.

  • Page 14: User Interface

    Released 20241002 6.2.3.2 Connecting to last used device If a connection has previously been established to a Colorimeter probe, the Colorimeter DSM-4 software will automatically attempt to connect to the last connected probe during startup (this requires the Probe to be turned on, while the software starts up).

  • Page 15: Clear Data

    Colorimeter DSM-4 software or its predecessor DSM-III (see Section 6.4 for further detail). Only files with the .cmf file extension generated by Cortex software can be opened this way. Any data already open will be lost if not saved before importing new data. A warning will be shown if data will be deleted.

  • Page 16: Bottom Menu

    (commonly distributed with Windows itself) 6.3.2.8 Quit Pressing the Quit button will close the Colorimeter DSM-4 Software. 6.3.3 Bottom Menu This section will cover the Bottom Menu layout. Items have been numbered in Figure 13.
  • Page 17 6.3.3.3 Toggle always on 3: While Colorimeter DSM-4 software is running it will by default attempt to keep the Colorimeter probe on, even if it is not in use. This feature can be toggle off allowing the probe to turn off if not in use. The timer for automatic shut-down of the probe can be set in the settings menu described in Section 6.3.5.
  • Page 18 Z22220.05 EN Released 20241002 Figure 14 Normal view without any data Figure 15 Normal view with data Figure 16 Normal View changed to only display Gloss values...

  • Page 19: Extended View

    ITA-score of 35.23 equals an ITA classification of “Intermediate” (III))  Gloss Listed in Gloss Units’ 6.3.4.2 Extended View This section will cover the Extended view of the Colorimeter DSM-4 software user-interface. The sections will be covered as follows:  1: single measurement info panel ...
  • Page 20 Two graphs are available for displaying measurement data, ITA and color spectrum data. The graphs can be toggled by using the two arrows at the top left shown in Figure 20. ITA Graph This is the default graph shown in the Colorimeter DSM-4 Software. All Measurements in the measurement...
  • Page 21 Z22220.05 EN Released 20241002 list will be displayed in the graph if the measurement is within the margin for skin ITA. Any new measurement will be displayed as red circles as shown in Figure 20. Figure 20 ITA Graph The Latest measurement performed will be highlighted by a white ring. As shown in Figure 21. Any measurements selected in the measurement list will be highlighted with a white circle instead as shown in Figure 21.
  • Page 22 Z22220.05 EN Released 20241002 b. Average Calculator The average calculator panel allows for different averages to be calculated based on what is selected by the user. The default state of the panel is “None” meaning that no average is calculated. Setting the mode to “Last N” will allow the user to input an N-Value (default value of 5) which will then be used to calculate a running average based on the last N measurement taken.

  • Page 23: Settings Menu

    6.3.5 Settings Menu The settings menu can be opened by pressing the settings button described in 6.3.2.6. Note that if no Colorimeter DSM-4 probe is connected, certain features are not shown in the settings menu. The settings menu shown in Figure 27 can be closed by either pressing the “x” in the top right corner of the menu or by pressing the settings button that initially opened the menu.
  • Page 24 The following information is presented within the settings menu. Note that when contacting Cortex in any service case regarding the Colorimeter DSM-4 probe or software it can be useful to either include the information listed in the settings menu or provide a screenshot of the entire settings menu.

  • Page 25: Dsm-Iii Compatibility

    Figure 28 .cmf data layout Data can be exported from the DSM-4 software as a file for printing in pdf format or as a cmf file. A .cmf file is created when the save button is pressed. A .cmf file can be opened in any text editor or excel and similar.

  • Page 26: Maintenance

    Note that regular RGB values are no longer present in .cmf files generated by the Colorimeter DSM-4 software or present in the user interface. Instead, these values have been replaced with sRGB values, which are not directly comparable to RGB values.

  • Page 27: Service

    Bluetooth connection. This connection is vulnerable to noise from outside forces and can be delayed if too many Bluetooth devices are active within the vicinity. Q: I have paired my probe and pc, but my Colorimeter DSM-4 probe will not connect to my Colorimeter DSM- 4 software on the pc.

  • Page 28: Colorimeter Dsm-4 Parts

    Z22220.05 EN Released 20241002 11 Colorimeter DSM-4 parts Colorimeter DSM-4 Order no. D22200.01 Calibrator Order no. D22214.01 Power supply Order no. D22215.01...

  • Page 29: Eu Declaration Of Conformity

    REACH Candidate List of Substances of Very High Concern (SVHC) or release any restricted substances under normal or reasonably foreseeable conditions of use. Name of product: Colorimeter DSM-4 Name and address of manufacturer: Cortex Technology Aps, Niels Jernes vej 6B 9220 Aalborg Ø,...

  • Page 30: Color Theory

    The CIE-XYZ (tristimulus values) is a device-independent representation of color that can be transformed into all modern color spaces. It is a universal color space that encompasses all colors visible to the human eye. The Colorimeter DSM-4 measures color using a D65 light source and a 10° standard observer.

  • Page 31: Color Difference

    <-30° A.5. Color difference While color difference is not displayed in the Colorimeter DSM-4 Software, it is an important aspect of color theory and used in the accompanying calibration certificate for the Colorimeter DSM-4. This section will give a brief introduction to the concept of ∆��.
  • Page 32 Z22220.05 EN Released 20241002 Delta E 2000 While Delta E 76 provides an objective Euclidean distance between two colors, it does suffer when working with high saturation colors, and does not take into account the human perception of colors. A newer version of Delta E has later been developed considering not only the CIELAB coordinates but also hue, Chroma, and a scaling factor for the CIELAB a* value.

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