Rhopoint Instruments Novo-Curve 4 User manual

Novo-Curve 4 Benchtop Glossmeter
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

2Novo-Curve 4
This instruction manual contains important information about the setup and use of
your Rhopoint Novo-Curve. 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. If you have any questions or require additional information about the Rhopoint Novo-Curve 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 2023 Rhopoint Instruments Ltd. All Rights Reserved.
Rhopoint Novo-Curve and Rhopoint™ are registered 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.

3Novo-Curve 4
Contents
Specifications 4
Accessories 5
About the Novo-Curve Glossmeter 6
Labelled image / functional overview 7
Set-up 8
Making a measurement 9
Main menu 11
Batching Options 12
Viewing Data 12
User Defined Batch Names 13
Setup 13
Novo Gloss Multi Gauge 14
Data & Batch 15
Calibration 16
Auto Calibration 17
Measurement menu 18
Control 20
Keyboard emulation 21
Instrument setup 22
Maintenance 23
About screen 23
Appearance theory 24
Optional accessories for sample placement 25
Jigging posts 25
Custom sample holders 25
EU Declaration of Conformity 26

4Novo-Curve 4
Specifications
From Datasheet: 0859-02
60° Gloss
Range (GU) 0–10 10–100 100–1000
Repeatability 0.1 (GU) 0.2 (GU) 0.2%
Reproducibility 0.2 (GU) 0.5 (GU) 0.5%*
Resolution (GU) 0.1
Measurement Spot 2.0 x 2.0 (mm)
Standards ISO 2813 ASTM D523
*A mirror gloss calibration standard is required to achieve this reproducibility
Instrument Specifications Details
Power 110 –120V AC or 220 –240V AC to power external 9v DC power pack
Measurement aperture 4.5mm ø
Operation Full colour easy to read screen
Adjustable brightness
5 button touch sensitive interface, measurement button or optional footswitch
Construction Integrated calibration holders for error free calibration
Measurement Fast measurement
Results batching with user definable names
Graphical Analysis On board trend analysis
Statistical Analysis Max, min, mean, S.D.
Memory 8MB, 2,000 readings
Operating Temperature 15-40°C (60-104°F)
Operating Humidity Up to 85%, non condensing
Dimensions and Weights Details
Dimensions 70mm x 190mm x 230mm (H x W x D)
Weight 2.2kg
Packed weight 3.4kg
Packed dimensions 110mm x 280mm x 220mm (H x W x D)
Languages
Commodity code 9027 5000
Order Codes Details
Novo-Curve Glossmeter A1277-600
4x Jigging posts B1277-602
Mirror gloss calibration standard B6000-101
Free extended 2 year warranty: Requires registration at www.rhopointinstruments.com within 28 days of purchase.
Without registration, 1 year standard warranty applies.
Free light source warranty: Guaranteed for the life of the instrument.
Calibration and service: Fast and economic service via our global network of accredited calibration and service centres.
Please visit www.rhopointinstruments.com for detailed information.

5Novo-Curve 4
Accessories
The Novo-Curve 4 is supplied complete with the following:
• Novo-Curve instrument
• Certified calibration tile in protective case
• USB containing instrument manuals and software
• USB data cable
• Power supply unit with adaptors for UK, EU and USA
Optional Extras:
• 4 x jigging posts
• Replacement calibration tile
• Supplementary calibration/checking tiles
• UKAS (ISO17025) calibration/checking tiles
• Novo-Curve Cylinder Measurement Jig
• Custom fixture jigs
• Footswitch

6Novo-Curve 4
About the Novo-Curve Glossmeter
The Novo-Curve Glossmeter is a unique instrument with specially designed optics
for accurately measuring the gloss at 60° of curved surfaces and small areas.
Multiple options exist to increase the repeatability of gloss measurement of irregular sample shape.
Moveable jigging posts ensure cylindrical objects can be positioned correctly and measured in the same place
each time (requires additional accessory).
For an exact fit for small complex shapes, a custom cutout enables the sample to measured in exactly the
same spot each time (requires additional accessories).
Benefits of using the Novo-Curve Glossmeter
• Measures small, curved or irregular surfaces
• Simple jigging system (requires additional accessories)
• 2mm x 2mm measurement spot
• Hands free operation, easy sample manipulation
• Full statistical analysis
• Constant read feature
• Measures matt to mirror finish
• Download and analyse readings using Novo-Gloss Multi Gauge software (included)

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Labelled image / Functional Overview
Label No. Function
1Read & Continuous read button
2High resolution display
3Up / Down / Left / Right and enter navigation buttons
4Power on switch
5DC input
6USB connection
7Foot switch input
8Test plate
Power
The Novo-Curve is powered using an
external low voltage power supply.
The DC jack is inserted in the side
panel as shown. The instrument
is turned on with the power switch
to the left.
DC Jack
Power
Switch
1 5
6
8
23
4
7

8Novo-Curve 4
Set-up
With the unit switched on and initialised, the Novo-Curve will go into a warmup mode as shown below.
From initial power on, the approximate time to reach optimal operating temperature is 2 minutes.
Gloss
Warming up
57%
MENU
Once initial warm up is complete, the instrument will display the home screen as shown below. It is
recommended that the instrument is calibrated. See page 16.
Gloss
Calibration recommended
Calibrate now?
CANCEL CONFIRM
BATCH.001
MENU STAT
n=16
With warm up complete and instrument calibrated it is ready to use.
Gloss
MENU
60°
0.0
25/03/2023 12.51
Gloss reading
Navigation options
Gloss geometry
Date and time

9Novo-Curve 4
Making a measurement
In the mode detailed above, measurements can be made by simply pressing the operate button, the centre
button on the instrument’s keypad. Or the foot switch if connected.
The instrument will perform a measurement and display the results.
The Read and Continuous read button to the left of the screen can be used to perform a continuous read.
Releasing the button will save the last displayed reading.
Gloss
MENU STAT
n=19
25/03/2023 12.51BATCH.001
Measuring
99.4
When the instrument memory is turned on (see page 11 for instructions), in the Home screen press the
Right button to display the gloss statistics screen for the current batch.
Measurements can be taken whilst in this screen and the statistics will be updated each time.
Read and
Continuous
read button
Up / Down /
Left / Right
navigation buttons
Operate /
Enter button
Statistics 1
60°GU
5.5
GRAPH
Max
Min
Mean
Mean
5.6
5.1
5.4
0.2
n=5
Number
of readings

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Press the Right button in the statistics screen to display the graph screen; this screen displays a trend
graph of the gloss measurement data.
Graph
STAT
60º
n=12
100
98
96
94
92
90 1 4 7 10 13
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.
In the Home screen press the Left button to display the Stored Data screen.
Stored Data
Batch
n=19
60°
3.0
25/03/2023 12.51Batch.001
When Memory is set to ON (as detailed later in the Menu Screen section of this manual on page 11)
measurements can be recalled and displayed from any batch stored in the memory.
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.

11Novo-Curve 4
Main Menu
The menu is used for quick access to often used options. Press the Up and Down buttons to navigate
through the options, press the Enter button to select the option required.
Menu
SETUP
Memory: ON (100% free)
Delete Last Reading
Start New Batch
Clear Current Batch
Delete All Batches
Batch name :BATCH
Calibrate Instrument
Cancel warm up
Options in the menu screen are: -
Memory Set to ON - enables storage and batching of measurement results.
The amount of available storage memory is also displayed (250 readings
per batch).
Set to OFF – disables result storage
With Memory ON:
Delete Last Reading Delete last measurement, no. of measurements and statistics data
updated to previous values.
Start New Batch Start new batch of readings, Batch name is incremented by 1.
Clear Current Batch Delete entire batch of measurements for current batch.
Delete All Batches Delete all batches and measurements stored.
Batch Name Default name is BATCH, a maximum of 8 user defined batch names can be
used as detailed in the “Batching Options” section.
Calibrate Instrument Perform a calibration of the instrument as detailed under “Operation”.
Cancel warm up Will cancel any remaining warm up period and allow a reading to be
made.
Press the Left button to return to the Home screen.
Press the Right button to access the Setup screen.

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BATCHING OPTIONS
The batching feature allows the user to group measurements together in batches.
Each batch has associated statistics; the data for each batch can be accessed by
connecting the instrument to a PC.
The current batch name is displayed on the home screen in the bottom left corner, the sample number within
that batch is shown in the top right of the screen indicated with n= (sample number).
A new batch is started using the start new batch option in either the menu screen or the Data menu, note
that the batch name will increment as will the ‘n’ indicator.
The current batch can be cleared in the either the menu screen or the Data menu, the batch name will
remain the same but the ‘n’ indicator will reset to zero.
Auto batch size is user defined using the auto batch option in the Data Menu. When the number of readings
in the current batch reach the number set by the user, the instrument will automatically increment the batch
name and set the ‘n’ indicator to zero.
VIEWING DATA
To access the stored batch information connect the instrument to a PC using the USB data cable supplied.
A new device name “NOVO-CRV” 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.
Each reading is saved as an individual comma separated value (.csv).

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USER DEFINED BATCH NAMES
Batch names are user definable. With the instrument connected to a PC, open the folder named “CONFIG”.
Within this folder there is a document named “batches”. This is a .csv file that can be opened in Notepad,
Excel or Wordpad.
User defined names should be saved in this document each name listed on a separate line. Ensure that the
final line is terminated with a carriage return.
The format of these names should only contain letters, no numbers, spaces or other characters can be used.
Once completed save the file then switch the instrument off and on again to initialize the new batch names.
SETUP
The setup is used to customise the instrument to the users preference.
Press the Up and Down buttons to navigate through the options, press the Enter button to select the option
required.
Setup
BACK
Data & Batch Menu
Calibration Menu
Measurement Menu
Control Menu
Instrument Setup
Factory Menu
About
Data and Batch Menu Batch / Data options (See Data & Batch Menu Screen)
Calibration Menu Calibration options (See Calibration Menu Screen)
Measurement Menu Geometry setup (See Measurement Menu 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
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.

14Novo-Curve 4
NOVO GLOSS MULTI GAUGE
The Rhopoint Novo-Curve can be connected to NOVO-GLOSS MULTI GAUGE to receive measurement data
via USB.
Connect the instrument to a PC using the Mini USB cable.
Select Access files.
Launch Multi Gauge.
Press measurement button.
Press import button, second down.
Select the batch the results are stored in and then the samples to view. Press import.
Data selected will be available to view.
The full manual for Novo-Gloss Multi Gauge software can be downloaded here:
www.rhopointinstruments.com/download/novo-gloss-multi-gauge-user-guide/

15Novo-Curve 4
DATA & BATCH
The data has 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 – 250, press the left / right buttons
to select the relevant digit and the Up / Down buttons to increment / decrement the value.
Press the Enter button to save the batch size.
Data
BACK
Memory: ON (100% free)
Delete Last Reading
Start New Batch
Clear Current Batch
Delete All Batches
Auto Batch :OFF
Batch Size :N/A
Batch Name :BATCH
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.

16Novo-Curve 4
Calibration
Inspect the condition of the calibration standard prior to use.
Inspecting and cleaning the calibration standard
The calibration standard must be perfectly clean from smears and scratches before attempting calibration.
Fingerprints and dust can be removed with the supplied optic cleaning cloth.
Scratched or damaged standards are not suitable for gloss calibration. The instrument and standard must be
returned to an approved Rhopoint service center for tile replacement and re-calibration.
CALIBRATION
Calibration is used to setup the instrument calibration to the users preference.
Place the calibration tile on the test plate. It will magnetically locate. Adjust the position of the calibration
standard so that the alignment marks on the side line up with the marks on the sample plate.
Press the Up and Down buttons to navigate through the options, press the Enter button to select the option
required.
Calibration
BACK
Calibrate Instrument
Auto Calibration :ON
Calibrate to :BLACK
Tile Value :100.1
Error Detection :ON

17Novo-Curve 4
Options in the Calibration screen are: -
Calibrate instrument Performs an instant calibration of the instrument; a dialogue box being
displayed upon completion to either “Cancel” or “Confirm”.
Auto Calibration Set to ON, a dialogue box appears each time a measurement is taken as
detailed under Operation.
Set to OFF - the dialogue box is disabled; measurements are made.
Calibrate to Set to Black - a traceable gloss tile is used as the calibration standard.
Set to Mirror - a traceable mirror tile is used as the calibration standard.
Tile Value Set the calibration values for either standard being used for calibration.
Press the Enter button to select the value. Press the Left / Right buttons
to select the relevant digit and the Up / Down buttons to increment /
decrement the value. Press the Enter button again to save the value.
Error Detection Set to ON the instrument detects the condition of the calibration standard
being used. If there are fingermarks or debris which cause it to fall outside
the value set in Haze Tolerance an error message is displayed before
calibration requesting that the tile be checked for cleanliness.
Set to OFF - Values are still checked against the stored reference but no
other error checking is carried out.
Set to ON - A check is made to see if an appropriate hardware channel is
wildly different to what it should be, indicating that the calibration is being
attempted on the wrong tile type.
AUTO CALIBRATION
The Novo-Curve automatically detects whether a calibration standard is fitted.
With the auto calibration option set to on in the settings menu (detailed in the previous section) a dialogue
box will appear when the operate button is pressed as shown below.
Gloss
Tile Detected
CALIBRATE MEASURE
Assigned Value
60 : 100.0
MENU
25/03/2023 12.51

18Novo-Curve 4
Two options are available:
Either to “Calibrate” the instrument on the calibration standard before making the measurement or to
“Measure” without performing a calibration. Press the Left/ Right and Enter buttons on the keypad to
select the required option.
If “Calibrate” is selected the instrument will perform a calibration on the calibration standard and display a
confirmation dialogue box when completed.
Selecting the “Confirm” option will save the calibration information to the instrument’s memory, which will
also be confirmed by the calibration tile Gloss readings appearing on the instruments display.
Alternatively, if “Cancel” is selected the display will return to the Home screen.
Measurement menu
The measurement screen is used to configure the instruments measurement
parameters to the users preference.
Press the Up and Down buttons to navigate through the options, press the Enter button to select the option
required.
Measurement
BACK
Auto Measure :OFF
Range :AUTO
Reflectance :GU
Historic cal. :OFF
Selectable settings in the Measurement screen are: -
Auto Measure
Enables or disables automatic measurement mode, used for monitoring surfaces for changes over a period of time.
Press the Enter button to select the required measurement frequency of either 2, 5, 10, 30 or 60 seconds.
When auto measure mode is activated a dialogue box is displayed after the Enter button is pressed and
before the beginning of the measurement sequence indicating that it is activated. To stop auto measure
simply press the Enter button once again at any time during the sequence.

19Novo-Curve 4
Range
Selects gloss measuring range to:
• Auto – Full range
• Black – Standard gloss scale
• Mirror - Extended scale for highly reflective materials, polished metals, requires calibration using
mirror standard.
Reflectance
Selects the measurement unit to be displayed for each angle:
• % - display percentage reflectance, 100% reflectance = 1000GU @60º
• GU - display Gloss Units
With Reflectance set to %, measurement results for each angle are displayed as –
Gloss
MENU
60°
60.0%
25/03/2023 12.51
With Reflectance set to GU, measurement results for each angle are displayed as –
Gloss
MENU
60°
30.0
25/03/2023 12.51
Historic cal
Enables or disables historic measurement result. Set to on for closer correlation to previous model Novo-
Curve instruments. It is recommended that the instrument is set to OFF. In this mode the instrument will
match the readings given with current Rhopoint Novo-Gloss and IQ instruments.
Press the Left button to return to the Home screen.

20Novo-Curve 4
CONTROL
The control screen is used to configure the instruments communication
parameters to the users preference.
Press the Up and Down buttons to navigate through the options, press the Enter button to select the option
required.
Control
BACK
Enable Remote Control
Keyboard Emulation :OFF
ID :ON
SOF/EOF :OFF
USB Mode :MANUAL
Settings in the Control screen are:
ID Measurement definition header
SOF/EOF Start / End of file markers for use in analysis software
USB Mode Set the functionality of the USB connection when connected to a PC
Manual – Allow the functionality to be set on the instrument each time a
USB connection is made
RC – Remotely control the instrument via USB to make measurements and
transfer data.
Data – Data only mode. Instrument can be seen as a removable drive.
Keyboard Emulation After each measurement the reading will automatically send to the PC as
a simulated keyboard press followed by a line return. When in this mode a
small keyboard symbol will appear in the top right of the screen.
Press the Left button to return to the Home screen.