Linshang LS177 7 Inch Multifunctional Large Aperture Spectrocolorimeter User Manual

Linshang LS177 7 Inch Multifunctional Large Aperture Spectrocolorimeter

Specifications:

• Manufacturer: Shenzhen Linshang Technology Co., Ltd.
• Product: LS177 Spectrocolorimeter
• User Manual Version: V1.0
• Standards:
  • GB/T 3978-2008 Standard illuminants and geometric conditions
  • GBT 7921-2008 Uniform color space and color difference formula
  • GB/T 11186.1-1989 Methods for measuring the colour of paint films–Part 1: Principles
  • GB/T 11186.2-1989 Methods for measuring the colour of paint films–Part 2: Colour measurement
  • GB/T 11186.3-1989 Methods for measuring the colour of paint films–Part 3: Calculation of colour differences
  • GB/T 39822-2021 Plastics–Determination of yellowness index and change in yellowness index
  • GB/T 17749-2008 Methods of whiteness specification
  • ASTM E313-98 Standard Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates
• Color Space: Hunter, YI-98, WI-R457, Reflectance Eab, Euv, E94, Ecmc(2:1), Ecmc(1:1), E00
• Repeatability: E*ab is within 0.03 (Measurement condition: the average value of 30 measurements on the whiteboard at an interval of 3s after calibration)

Product Usage Instructions

Illumination Geometry:

The LS177 Spectrocolorimeter uses a specific illumination geometry for accurate color measurement.

Measurement Conditions:

Ensure that the measuring conditions specified in the manual are met for accurate color readings.

Data Transmission:

Understand how to transmit data from the device to other systems or devices for analysis.

Operating Temperature Range:

Operate the spectropolarimeter within the specified temperature range mentioned in the manual.

Frequently Asked Questions

• Q: How do I calibrate the LS177 Spectrocolorimeter?
  • A: Calibration instructions can be found in the user manual provided with the device. Follow the steps carefully to ensure accurate measurements.
• Q: Can I use the LS177 Spectrocolorimeter for measuring plastic color differences?
  • A: Yes, the device is capable of determining the yellowness index and changes in the yellowness index for plastics.

QR code for app installation

https://www.linshangtech.cn/a/170/

Please read this manual carefully before using and reserve it for reference.

Product Introduction

The instrument is a multifunctional large aperture spectrocolorimeter. It has a 7-inch IPS color display and capacity touch panel, which has an excellent operating experience. The instrument integrates multiple color charts and can quickly match the measured color to the closest color code. It also has color difference comparison function, color difference threshold can be set and a variety of color difference formulas can be selected to achieve rapid QC testing. The instrument can also connect to APP for color measurement and sharing. It is also equipped with a powerful PC software to meet various needs of customers. The instrument meets the requirements about grade 1 colorimeter in the Chinese JJG 595-2002 Verification Regulation of Colorimeters and Color Difference Meters in all directions employing full-spectrum LED light source and advanced spectral sensor.

Standards for the product

• GB/T 3978-2008 Standard illuminants and geometric conditions
• GBT 7921-2008 Uniform color space and color difference formula
• GB/T 11186.1-1989 Methods for measuring the colour of paint films–Part 1: Principles
• GB/T 11186.2-1989 Methods for measuring the colour of paint films–Part 2: Colour measurement
• GB/T 11186.3-1989 Methods for measuring the colour of paint films–Part 3: Calculation of colour differences
• GB/T 39822-2021 Plastics—Determination of yellowness index and change in yellowness index
• GB/T 17749-2008 Methods of whiteness specification
• ASTM E313-98 Standard Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates

Parameters

Repeatability

| Standard deviation ΔEab is within 0.03 (Measurement condition: the average value of 30 measurements on the whiteboard at an interval of 3s after calibration)
Inter-instrument agreement| △Eab<=0.4, based on avg. of 12 BCRA series II tiles
Dimension| 21.1 26.4 15.5cm (LWH)
Weight| About 3.29kg
Power supply| 100~277V 0.4A 50/60HZ
Display| 7-inch 1024*600 dot matrix IPS color screen
Language| Simplified Chinese, English
Data transmission| USB, Bluetooth

Operating temperature range

| 0~45℃, 0~85%RH (no condensation)

Storage temperature range

| -25~55℃, 0~85%RH (no condensation)

Features

1. The measuring aperture is up to 50mm, which is especially suitable for measuring uneven surfaces such as masterbatches, powders and coarse cloths.
2. The instrument is equipped with special plastic cuvettes for the measurement of masterbatches, powder and opaque liquid.
3. The instrument is fashioned with a full-spectrum LED light source and spectral sensor, and it meets the requirements of the national metrology grade 1 machine.
4. Adopt a 7-inch capacity touch panel with human-machine interaction interface for convenient operation.
5. Contains multiple electronic color charts, which can quickly match the closest color code with matching accuracy rate greater than 90%.
6. QC testing function: the color difference threshold can be set and a variety of color difference formulas are optional.
7. A variety of color spaces are available, suitable for various needs of color measurement.
8. It can store 1000 colors and 1000 color comparison records with large storage space.
9. It can connect to APP for color sharing.
10. Equip with PC software which has stronger color difference statistical analysis function, spectral reflectance measurement and curve data export EXCEL function.
11. The instrument has a built-in compensation optical path with stable values, allowing long-period calibration.

Operation

1. Power on/off
   Power on: Plug in the power supply, short press the right side button to turn on the instrument.
   Power off: Long press the right side button to turn off or press “Power off” in the menu bar.

2. Calibration
   After entering the “calibration” interface, you can perform the calibration operation as the calibration animation, or skip the calibration. It is recommended to calibrate after a long time of no usage.
   For failed calibration, the possible reasons are as below:

   • The standard tile is not closed properly;
   • The standard tile needs to clean;
   • The attenuation of the light source leads to failure of normal use and it needs to be returned to the factory for inspection and repair.

3. Measurement
   The default measurement parameter of the instrument is “Lab”. Users can click the “Param” at the top of the screen or the “Param Settings” in menu bar to enter the setting interface to select the parameters to be measured (CIE Lab, CIE Luv, CIE LCh, Yxy, CMYK, RGB, WI-98, WI-Gauz, WI-Hunter, YI-98, WI-R457, Spectra).
   Entering the measurement interface, you can click the ” Compare” on the top of the screen to switch the compare measurement mode

Compare on

In the measurement interface, press the “Scan Standard” button to set current value as standard. Press the “Scan Sample” button to use current value as sample. If short press the button on the right side, another measurement will also be taken and the current value will replace the previous one. When measuring or adding a standard and measuring a sample, the color difference between the two measured values will be calculated with the following results:

• The difference value
  The difference Δ is the sample data minus the standard data;

• Color Bias
  When the measurement parameter is selected as Lab, the color bias will be judged by ΔL, Δa, and Δb;

• Δ E value
  When the measurement parameter is selected as Lab、LCh、Luv、Yxy、CMYK or RGB, ΔE is calculated using the ΔE*ab color difference formula;

• QC test

Suitable for color difference inspection in production process. If ΔE is higher than the set threshold, it will read “NG” and sown in red; if ΔE is less than or equal to the set threshold, it will read “Pass” and display in green.

The following steps can be performed after completing compare measurement:

• Save
  To save the comparison result, press “Save” on the upper right corner. You can choose default or name the record manually.

• History
  If users need to view the saved results, click “History” to view the records, and records can be paged, deleted, renamed and searched.

• Save standard
  After the user has finished measuring the standard value, if need to save it for later calling, click the ” Save standard” to save it, and the saved value can be queried in the add standard interface

• Add standard
  After clicking “Add standard”, the interface will jump to “Add standard”, click the value you want to add, and the selected value will be used as the standard, and will automatically return to the measurement interface to compare with the current sample or the upcoming sample.

• Input standard
  The user can manually input the Lab, Luv, LCh, Yxy, CMYK, RGB, WI-98, WI-Gauz, WI-Hunter, YI-98, WI-R457 value as standard.

• △E Setup
  Setting the △E formula and threshold for QC inspection.

Compare off

In the measurement interface, click on “Scan” or short press the button on the right side of the instrument to measure.

Matching colors: According to the selected color chart by the user, the closest three color chart numbers are matched for display.

The following steps can be performed after completing the measurement:

• Save
  To save the comparison result, press “Save” on the upper right corner. You can choose default or name the record manually.

• History
  If users need to view the saved results, click “History” to view the records, and records can be paged, deleted, renamed and searched.

• Color chart
  Select one set of color charts for matching, then samples will be only compared within this chart. Three closest color codes will be matched.

Menu bar

In the measurement interface, click the “ ” icon on the upper left corner to pop up the menu bar, with the following options: Language, Calibration, Param Settings, Device info, Reset to defaults and Power off.

• Calibration
  Can enter the calibration interface to perform calibration operation of the instrument.

• Language
  Support Simplified Chinese and English.

• Param Settings
  Select the parameter desired to be measured and displayed. Shortcut keys for the same functions are available at the top of the measurement interface.

• Device Info
  “Device Info” displays the basic information of the instrument, including: Serial Number, Firmware Version, and Device Status.

• Reset to defaults
  To restore parameters to the factory settings and clear the data in the measurement interface.

• Power Off
  Press “Power off” to power off the instrument.

Bluetooth Connection

Installation

The colorimeter APP supports Android operating system 7.0 and above as well as iOS system 7.0 and above. Choose one of the following methods to install:

1. Scan the QR code on the cover with a mobile browser or WeChat, follow the prompts to download and install Lscolor.
2. Search for “LScolor” from the iOS App Store or Google Play App market and follow the prompts to download and install LScolor.

Precautions:

Open the App during the installation process or after the first installation, the mobile phone will prompt the permission of setting, the customer needs to allow all of them, otherwise the App cannot search for the device, and App cannot be used.

Device connection

Turn on the colorimeter, open the App, after display of LOGO. Enter the “Connect Device” interface and automatically start searching for Bluetooth devices. The searched devices will be displayed at the bottom of the interface. Click the device that matches the SN of the colorimeter and wait for the device to connect. Once connected, it will jump to “Calibration interface. Precautions:

1. If there is a Bluetooth connection error or failure, you can restart the App and the colorimeter, or turn off/start Bluetooth in the setting interface and reconnect.
2. Click the “Browse” button, App is not connected to the colorimeter, you can enter the App to view historical data.

APP operation

The APP has the same function of color scan and color compare as the instrument with the same operation. The only difference is that the APP has color sharing function, and can import and export colors.

Color sharing

There are two ways to share colors:

• a) Scan a color in the “Color Scan” interface, press the “Share” icon to share the scanned color in image format or data format (the sharing methods are: WhatsApp, Facebook, email, etc.).
• b) In the “My Colors” folder, select the colors to share and click “Share” icon to share the colors in data format.

Color import

Users can import colors shared by others into their own App, but the colors must be scanned by the same model of colorimeter. Both single color and batch of colors can be imported as follows: Take WeChat sharing and import on Android as an example, find the file to import with a name of “import_mycolor” and long press the file to be imported.

If use the iOS system, click the file and download it first, and then select “Open with other app” to realize data sharing.

• a) If the above interface appears, click “Open with other app” and select the App “LScolor”, after confirmation, jump to the import interface and select the file to complete the import
• b) If the import has completed, it will prompt “Import successful”. After pressing “Confirm”, the imported color will be displayed. After the import is completed, the import can be checked as the first record under the folder.
• c) If the product model does not match, it will prompt “Unmatched device model “. Please connect to the correct model before importing.

PC Software

You can use the PC software to connect the computer via USB. The software has functions of color compare measurement, reading compare record, export compare data to Excel, spectral reflectance measurement, qualified number, unqualified number, total number statistics, report generation and printing, etc. For specific operation, please refer to the “Color Haze Meter Software Operation Manual”.

Precaution

1. When the colorimeter has not been used for a long time, it is recommended to perform calibration before using.
2. Please ensure that the sample is evenly colored with a flat and clean surface, otherwise it will affect the measurement accuracy.
3. The calibration cover should be adsorbed to the iron shell after it is removed from the main unit to avoid fouling of the standard plate.
4. Do not apply any objects to the glass of the measuring port, as this will damage the instrument and affect the measurement accuracy and operational safety.
5. When the instrument is not in use, put on the calibration cover to prevent dust from entering or prolonged humidity, which may affect the measurement accuracy.
6. It’s recommended to calibrate the instrument once each year. And we offer calibration service.
7. Due to color difference in the LCD display, the color displayed on the instrument screen is for reference only.

Plastic cuvettes

In order to meet the measurement requirements of masterbatches, powders, and opaque liquids, the instrument is equipped with two plastic cuvettes.

Packing List

Service

1. The colorimeter has one-year warranty. If the meter works abnormally, please send the whole instrument to our company for maintenance.
2. Provide users with spare parts and lifelong maintenance services.
3. Provide the users with the gauge calibration service.
4. Free technical support for long term.

• Manufacturer: Shenzhen Linshang Technology Co., Ltd.
• Website: www.linshangtech.com
• Service hotline: +86-755-86263411
• Email: sales21@linshangtech.com

References

• Transmission Meter | UV Light Meter | Coating Thickness Gauge - Linshang
• LScolor APP

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