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Summary of Contents for Rhopoint IQ
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Page 1: Operating Instructions
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. English... - Page 2 This instruction manual contains important information about the setup and use of your Rhopoint IQ™. It is essential that the contents be read before powering up and operating the instrument. If this instrument is passed to other users you must ensure that the instruction manual is supplied with the instrument.
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Page 3: Table Of Contents
Rhopoint IQ Glossmeter & Goniophotometer Why is reflected appearance important? Disadvantages of standard gloss measurement Gloss Haze Measuring Haze with the Rhopoint IQ Distinctness Of Image (DOI) Reflected Image Quality (RIQ) RSpec- Peak Specular Reflectance Goniophotometric Profile Calculating Gloss, Haze, RSpec and DOI from a Goniophotometric Profile... -
Page 4: Storage And Handling
Storage and Handling This instrument contains precision optics and electronics. You should 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 as a consequence of temperature change. It is recommended that the instrument is not used until it has stabilised to ambient temperature. -
Page 5: About The Rhopoint Iq
The instrument uses a standard optical configuration at 60° and 85° to measure the gloss of matt and semi-gloss finishes. However at 20° the IQ uses a diode array to measure the distribution of the reflected light at +/- 7.25° from the specular angle of reflection in steps of 0.02832° . -
Page 6: 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 ISO 17025 / UKAS / BAM traceable high gloss calibration tile including certificate... -
Page 7: Functional Overview
Functional overview Label No. Function On / Off Button High Resolution Graphic Display Up/Down/Left/Right Buttons Operate / Enter Button Calibration Tile (magnetised) Charger Input Connector USB 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. -
Page 8: Power
A mains powered fast charger is provided with the unit, this will fully charge the unit when connected to the units charger input (6) in under 3 hours. The IQ can be operated with the charger plugged in. Alternatively the Rhopoint IQ can be powered and charged using the USB port (7), however due to the lower current available from most USB devices, the charge time will be a minimum of 6 hours. -
Page 9: Operation
Selecting the “Confirm” option will save the calibration information to the instruments 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. - Page 10 Operation Pressing the Up (3) button in the home screen will access the graph screen. The goniophotometric profile and data for the last 20° measurement is displayed. Measurements can be taken whilst in this screen and the display will be updated. Pressing the Left button returns the display to the home screen.
- Page 11 This same screen is available for gloss statistics when in the Gloss statistics screen. Pressing the Up / Down buttons IQ data can be displayed either all together or individually. Pressing the Up button in the IQ graph screen accesses the Gloss graph screen.
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Page 12: Menu Screen
Menu Screen The Menu Screen is used for quick access to often used options. Pressing the Up and Down buttons navigates through the options, pressing the Enter button selects that option. Selectable settings in the menu screen are:- Memory – Set to ON, enables storage and batching of measurement results. -
Page 13: Batching Options
To access the stored batch information connect the instrument to a PC/MAC using the USB data cable supplied. A new device name “IQ-METER” can be viewed and accessed via “MY COMPUTER”, in this device open the DATA folder. This folder contains subfolders which contain the data for each individual saved batch. -
Page 14: Setup Screen
Control Menu - Bluetooth setup (See Control Menu Screen) Instrument Setup - Language, Date / Time and Power options (Setup Menu Screen) Factory Menu - Pin locked menu options for Rhopoint authorised service centres Pressing the Left button returns the display to the home screen. -
Page 15: Data Screen
Data Screen The Data Screen is similar in functionality to that of the menu screen but also allows the selection and setting of the Auto Batch size. By selecting Auto Batch to ON the batch size can be selected between 1 - 999 by pressing the Left and Right buttons to select the relevant digit and the Up and Down buttons to increment / decrement the value. -
Page 16: Calibration Screen
Calibration Screen The Calibration Screen is used to setup the instrument calibration to the user’s preference. Pressing the Up and Down buttons navigates through the options, pressing the Enter button selects that option. Selectable settings in the Calibration screen are:- Calibrate instrument - Performs an instant calibration of the instrument;... -
Page 17: Measurement Screen
Mirror - Extended scale for highly reflective materials, polished metals, requires calibration using Mirror standard. IQ – Selects IQ information to be either displayed (ON) or not displayed (OFF) on screen DOI – Selects either standard DOI (Distinctness of Image) or enhanced RIQ (Reflected Image Quality) scale, details of which can be found in the Appearance Theory section of this manual. -
Page 18: Control Screen
Pressing the Left button returns the display to the home screen. 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... - Page 19 Pairing Procedure 1. Switch on the Rhopoint IQ. 2. The Bluetooth icon must be visible to allow pairing. 3. If the Bluetooth icon is not visible, enable it as detailed in Control Screen. Ensure that Bluetooth mode is set to either Data or Data+ 4.
- Page 20 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. 8: Enter the pairing code "0000". Make sure the IQ remains...
- Page 21 9. The IQ is now installed on your PC and ready for connection to the Bluetooth Data Widget. Ii is important to wait until windows displays the “Your device is ready to use” message before starting the data widget. Bluetooth Data Widget Installation Instructions...
- Page 22 "refresh "arrow to search for paired IQ(s). 5. The buttons are greyed out while the DATA widget searches for SWITCHED ON IQ(s) that have been PAIRED to the PC. 6. Look in the data widget drop down box to see discovered instruments.
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Page 23: Instrument Setup Screen
8. 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 Rhopoint’s website. Instrument Setup Screen The Instrument Setup screen is used to configure the instruments basic operating environment to the user’s preference. -
Page 24: Maintenance Screen
Pressing the Left button returns the display to the home 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 setting available. -
Page 25: About Screen
About Screen The About screen is for information only. It is provides information relating to the instruments software, the instrument serial number and last date of Factory Calibration. It also shows the amount of free memory available and battery power status. -
Page 26: Notes
Notes... -
Page 27: Appearance Theory
Rhopoint IQ uses traditional glossmeter optics at 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 28: Why Is Reflected Appearance Important
As well as assessing the visual impact of a surface, the Rhopoint IQ can also be used to identify problems associated with coating formulation and application. -
Page 29: Disadvantages Of Standard Gloss Measurement
The Rhopoint IQ, with its array of light sensors mimics the effect of reflected light in the human eye. This detailed information allows the user to measure and control surface... -
Page 30: Gloss
Conventional glossmeter optics are used at 60° & 85° these fully comply with international gloss standards such as ISO 2813 and ASTM 523. At 20° the Rhopoint IQ uses a diode array which measures the distribution of reflected light 12.75° – 27.25° . -
Page 31: Haze
Haze Haze describes the milky halo or bloom seen on the surface of high gloss surfaces. Surface haze can be problematic in most coating applications including automotive manufacture, powder coatings and other high gloss coatings. It can be attributed to a number of causes including incompatible materials in a formulation, poor dispersion and problems encountered during drying/curing/stoving. -
Page 32: Measuring Haze With The Rhopoint Iq
Taking reliable readings with a traditional gloss-haze meter can be difficult as the sample surface needs to be completely flat and un-textured. The Rhopoint IQ automatically compensates for sample surface flatness and texturing allowing haze measurements to be taken on a much wider range of product surfaces. -
Page 33: Distinctness Of Image (Doi)
The Rhopoint IQ measures the DOI of a surface by quantifying the way a reflected measurement beam is spread and distorted around the specular angle. -
Page 34: 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 35: Rspec- Peak Specular Reflectance
Either of these effects will cause readings errors using a standard glossmeter. To overcome this the IQ scans the reflectance profile of the surface from 12.75° - 27.25° and identifies the angular position of RSPEC. -
Page 36: Goniophotometric Profile
Goniophotometric Profile The Gloss, Haze, DOI, RIQ and RSpec values produced by the Rhopoint IQ can be used to assess the visual quality of any surface. Alternatively, if required, the full Goniophotometric curves can be downloaded to PC for a detailed understanding of specular reflectance. -
Page 37: 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 38: Technical Specification
Technical Specification GLOSS MEASUREMENT SPECIFICATION 20/60° or 20/60/85° Versions Available Resolution: 0.1 GU STANDARDS: ISO 2813, ASTM D523, ASTM D2457, DIN 67530, JIS 8741, ISO 7668 • Conforms: 60° & 85° • Verified Performance: 20° RSPEC Peak Specular Reflectance: 20° (+/-) 0.0991º GLOSS CALIBRATION STANDARD Traceability: ISO 17025 Certified Laboratory UKAS Laboratory Number 0693, BAM Traceable... -
Page 39: Instrument Specification
• Integrated calibration holder with in position detector Statistical Analysis • Max, Min, Mean, S.D. • All measured Parameters Graphical Analysis • On board trend analysis • Gloss and IQ Values Power • Rechargeable Lithuim Ion • >17 Hours operation • >20,000 Readings/Charge Operate from •... - Page 40 • PC & MAC compatible • USB Connection • No software install required Dimensions & Weight • 65 x 140 x 50mm (H x W x D) • 790g...
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