Rhopoint IQ 20/60 Operating Instructions Manual
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Rhopoint IQ 20/60 Operating Instructions Manual

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Operating Instructions
Rhopoint IQ
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

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Summary of Contents for Rhopoint IQ 20/60

  • Page 1 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...
  • Page 2 If this instrument is passed to other user’s you must ensure that the instruction manual is supplied with the instrument. If you have any questions or require additional information about the Rhopoint IQ please contact the Rhopoint Authorised Distributor for your region.

  • Page 3: Table Of Contents

    IQ Screen Control Screen Bluetooth Communication and Pairing Instrument Setup Screen Maintenance Screen About Screen Appearance Theory Why is Reflected Appearance Important? Disadvantages of standard gloss measurement Gloss % Reflectance Haze Measuring Haze with the Rhopoint IQ Haze Compensation Rhopoint IQ...
  • Page 4 Corrected haze measurement on metallic coatings Distinctness Of Image (DOI) Reflected Image Quality (RIQ) RSpec- Peak Specular Reflectance Goniophotometric Profile Calculating Gloss, Haze, RSpec and DOI from a Goniophotometric Profile Rhopoint IQ...
  • Page 5 Prevent exposure of the instrument to direct sunlight for prolonged periods and to continuous humidity and condensation. Rhopoint IQ...

  • Page 6: About The Rhopoint Iq

    About the Rhopoint IQ The Rhopoint IQ is an advanced measuring instrument used to quantify the quality of surface appearance. Unlike a standard glossmeter, the IQ has the unique capability of measuring and detecting quality problems caused by microscopic texture in the surface that cause haze and orange-peel effects which lead to poor Distinctness of Image (DOI), These factors can seriously affect the visual impact and reflective quality of many coated, painted and...

  • Page 7: Accessories

    Accessories The instrument is supplied as a standard package complete with all accessories required to calibrate and recharge the unit including:- Rhopoint IQ 20/60 or 20/60/85 Glossmeter / Goniophotometer. • NIST traceable high gloss calibration tile including UKAS certificate. •...

  • Page 8: Functional Overview

    Mains / USB Charger Input Connector The instrument is controlled by pressing the relevant touch sensitive button. Functionality is dependent on whether the instrument is in menu or operate mode as detailed in the operation sections that follow Rhopoint IQ...

  • Page 9: Power

    USB Connectivity Three functions are available when the Rhopoint IQ is connected to a computer using the USB cable supplied. Access Files – Allows access to measurement and configuration files on the instrument. The instrument appears as a USB drive named IQ-METER.

  • Page 10: Switching The Instrument On

    Switching the Instrument on To switch the Rhopoint IQ on, press the On / Off button located near the USB socket. The instrument will display the IQ logo and then the Home screen displaying measurement parameters according to the instruments default settings or those previously configured.

  • Page 11: Operation

    Selecting the “Confirm” option will save the calibration information to the instrument’s memory, which will also be confirmed by the calibration tile Gloss and IQ readings appearing on the instruments display. Alternatively, if “Cancel” is selected the display will return to the Home screen. Rhopoint IQ...
  • Page 12 Measurements can be taken whilst in this screen and the statistics will be updated each time. Statistics 1 STAT GRAPH n=12 20° 60° 85° 74.6 88.3 99.3 74.6 88.3 99.4 74.3 88.3 99.3 74.5 88.3 99.4 Mean Rhopoint IQ...
  • Page 13 20° Measurements can be taken whilst in this screen and the graph will be updated after each reading. Press the Left button to return to the statistics screen. Press the Right button to return to the Home screen. Rhopoint IQ...
  • Page 14 Press the Left / Right buttons to review the measurement data. Press the Up / Down buttons to select each batch. At the end of each batch the mean results are displayed. Press the Enter / Operate button to return to the Home screen. Rhopoint IQ...

  • Page 15: Menu Screen

    Calibrate Instrument – Perform a calibration of the instrument as detailed under “Operation”. Switch Off – Turn off the instrument. Press the Left button to return to the Home screen. Press the Right button to access the Setup screen. Rhopoint IQ...

  • Page 16: Batching Options

    512 diode elements. Each reading also contains the statistics for the batch up to and including that reading. To access the STATISTICS for the whole batch, the last reading in the batch should be examined. Rhopoint IQ...

  • Page 17: Setup Screen

    Instrument Setup - Language, Date / Time and Power options (Setup Menu Screen) Factory Menu - Pin locked menu options for Rhopoint Authorised Service Centres About Menu – Information about the instrument’s firmware version, serial number and last date of Factory Calibration Press the Left button to return to the Home screen.

  • Page 18: Data & Batch Screen

    If Batch names have been user defined, as detailed under Batching Options, selection of the Batch Name required is achieved by repeatedly pressing the Enter button with Batch Name selected. Press the Left button to return to the Home screen. Rhopoint IQ...

  • Page 19: Calibration Screen

    Set to CAL + Hz - A combination of the two above. Haze Tolerance - Set the tolerance for the standard being used for calibration. An ideal calibration standard should have zero haze, therefore setting this value anywhere between 0 – 9.9 defines the acceptable pass band. Rhopoint IQ...

  • Page 20: Measurement Screen

    Selects the measurement unit to be displayed for each angle: % - display percentage reflectance, 100% reflectance = 2000GU@20 degrees, 1000GU@60 degrees, 160GU@85 degrees. GU - display Gloss Units Press the Left button to return to the Home screen. Rhopoint IQ...
  • Page 21 96.1 72.6 BATCH.002 30/05/23 14:35 With Reflectance set to GU measurement results for each angle are displayed as – Trigloss + IQ MENU CURVE STAT 20° 60° 85° 74.6 88.3 99.3 Hz(E) Rspec 96.0 72.6 BATCH.002 30/05/23 14:35 Rhopoint IQ...

  • Page 22: Pass/Fail Setup Screen

    Bluetooth will also contain the pass/fail field. Trigloss + IQ MENU CURVE STAT 20° 60° 85° 74.6 88.2 99.3 Hz(E) Rspec 96.0 73.0 BATCH.002 30/05/23 14:35 Note – The Pass / Fail option is not available when % reflectance mode is selected. Rhopoint IQ...

  • Page 23: Iq Screen

    With ASTM E430 selected an (E) identifier will be displayed next to the Hz parameter. With ASTM D4039 selected a (D) identifier will be displayed next to the Hz parameter Trigloss + IQ MENU CURVE STAT 20° 60° 85° 74.6 88.3 99.3 Hz(E) Rspec 96.0 72.6 BATCH.002 30/05/23 14:35 Rhopoint IQ...

  • Page 24: Control Screen

    Manual – Allow the functionality to be set on the instrument each time a connection is made RC – Remotely control the instrument via USB to make measurements and transfer data Data – Data only mode. Press the Left button to return to the Home screen. Rhopoint IQ...

  • Page 25: Bluetooth Communication And Pairing

    Bluetooth Communication and Pairing The Rhopoint IQ has a Bluetooth function that allows readings to be instantly transmitted to a compatible PC. 20/60/85° Gloss, Haze + Log Haze, DOI/RIQ, RSPEC, Goniophotometric information, instrument serial number and service/calibration data can be instantly accessed by many PC applications including Excel, Word, Wordpad, OpenOffice or SPC packages...
  • Page 26 5. In Devices and Printers screen Click “Add a device” 6. Windows will now search for available Bluetooth devices, double click on the icon that corresponds to the IQ instrument. 7: Click “Enter the devices pairing code” in the “Add a device” screen. Rhopoint IQ...
  • Page 27 PC program. 1. Install the BT Data Widget software (BTdatawidget.exe) found on the cd supplied with the instrument. 2. Check Bluetooth is switched on and that the instrument has been paired correctly Rhopoint IQ...
  • Page 28 8. Click the tick to connect the instrument. 9. The transmitter icon now appears on the IQ. All readings will now be automatically transferred to any open windows package. Download example EXCEL spreadsheets from the Rhopoint Instruments website. Rhopoint IQ...

  • Page 29: Instrument Setup Screen

    ON (Fn) – Enable Function Select mode • ON ( ) – Use as an operate button Selecting the Power Switch to Function Select mode provides easy access to two regularly used features, Rotate Screen and New Batch. Rhopoint IQ...
  • Page 30 Press the Left / Right buttons to select the date or time and the Up / Down buttons to increment / decrement the value. Press the Enter button again to save the value. Press the Left button to return to the Home screen Rhopoint IQ...

  • Page 31: Maintenance Screen

    Maintenance Screen The Maintenance screen is used by Rhopoint Approved Service Centres. It is PIN locked to prevented unauthorised access. There are no user configurable settings available. Press the Enter button to return to the home screen. About Screen The About screen is for information only.

  • Page 32: Appearance Theory

    60° and 85° to measure the reflectance from matt to mid gloss surfaces. However, at 20° the Rhopoint IQ uses a diode array to measure the distribution of reflected light +/- 7.25° from the specular reflection angle in steps of 0.02832°.

  • Page 33: Why Is Reflected Appearance Important

    DOI, Haze or gloss values and therefore can be measured with this instrument. Specular reflectance from a “perfect mirror” surface - all light is reflected in the specular direction. Rhopoint IQ...

  • Page 34: Gloss

    The Gloss Unit (GU) is defined in international standards including ISO 2813 and ASTM D523. It is determined by the amount of reflected light from a glass standard of known refractive index. Calibration tiles supplied with Rhopoint instruments are traceable to master glass standards held at NIST (Canada).

  • Page 35: Reflectance

    85 degree - 160GU = 100% reflectance So, 20 degree - 1000GU = 50% reflectance, 500GU =25% etc When the IQ is calibrated in this mode it will calibrate to the GU value but will still display % reflectance. Rhopoint IQ...

  • Page 36: Haze

    Haze is an important measure for highly polished metals and is often associated with polishing marks and machining direction. Gloss-haze meters are traditionally used to measure this parameter and use a standard glossmeter design with additional light stops and diodes to measure the haze component 2º either side of the specular component. Rhopoint IQ...

  • Page 37: Measuring Haze With The Rhopoint Iq

    Incident light component Diffuse light Yellow pigment in paint film The Rhopoint IQ compensates for reflection from within the coating for highly reflective pigments, metallic coatings and speciality pigments, allowing the haze of any painted surface to be measured. Rhopoint IQ...

  • Page 38: Corrected Haze Measurement On Metallic Coatings

    Metallic reflection Metallic coating The Rhopoint IQ captures compensation information from a region adjacent to the haze measurement angle, this means it can be used on metallic coatings which reflect ligh directionally An advantage of the IQ is that unlike a conventional instrument, compensation is calculated using a region adjacent to the haze angle.

  • Page 39: Distinctness Of Image (Doi)

    finish. All these effects can be measured with the Rhopoint IQ. DOI has been measured instrumentally and subjectively in the automotive industry for many years.

  • Page 40: Reflected Image Quality (Riq)

    Reflected Image Quality (RIQ) Reflected Image Quality is a new measurement developed by Rhopoint Instruments to provide greater sensitivity when evaluating highly reflective coatings and the specular / diffuse element of lower gloss materials. Two highly reflective surfaces that have very small changes in orange peel or texture will show very little or no change in DOI due to the way that it is calculated but will appear quite different visually.

  • Page 41: Rspec- Peak Specular Reflectance

    To overcome this the IQ scans the reflectance profile of the surface from 12.75° - 27.25° and identifies the angular position of RSPEC. Gloss, Haze, DOI and RIQ values are then calculated using the RSPEC angular position as the 20º reference point. Rhopoint IQ...

  • Page 42: Goniophotometric Profile

    first panel has a very high degree of orange peel. When measured with the IQ, the instrument measures gloss identically to a standard glossmeter (87.2 GU- 89.0 GU). It also quantifies the orange peel finish on the substandard coating with a low DOI reading of 84.3. Rhopoint IQ...

  • Page 43: Calculating Gloss, Haze, Rspec And Doi From A Goniophotometric Profile

    Calculating Gloss, Haze, RSpec and DOI from a Goniophotometric Profile For the above example at 20º, the Rhopoint IQ calculates the Gloss value by summing the gloss values +/- 0.9º from the specular angle. These methods / tolerances are specified in ASTM D523/ISO 2813.
  • Page 44 Rhopoint Instruments Ltd Rhopoint Americas Inc. Rhopoint Instruments GmbH 1000 John R Road, Rhopoint House, Enviro 21 Park, Seebauer Office Center, Queensway Avenue South, Suite 209, Troy, Am Weiglfeld 24, St Leonards on Sea, TN38 9AG, UK MI 48083, USA...

This manual is also suitable for:

Iq 20/60/85

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