LINSHANG LS171 Manuale utente

Shenzhen Linshang Technology Co., Ltd.

3-9-2021 Page 1 of 15

LS171

Colorimeter

User Manual V2.0

QR code for app installation

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

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

Shenzhen Linshang Technology Co., Ltd.

3-9-2021 Page 2 of 15

I Mobile App Installation

The colorimeter APP supports Android operating system 7.0 and above or iOS 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 application.

(2) Search for "LScolor" from the iOS App Store or Google Play App market and follow the prompts to

download and install LScolor application.

APP icon

Precautions:

Open the APP during the installation process or after the first installation, the mobile phone will prompt

for permission settings. The customer needs to set “Allow all”, otherwise it will appear that the APP can’t

search for the device and the APP can’t be used.

II Product Introduction

LS171 is a portable App smart colorimeter. It greatly improve and expand the function of the colorimeter

using the mobile phone App's large memory and convenient operation. The mobile APP comes with

multiple electronic color charts to quickly match the measured color to the closest color card number and

support measured color sharing through WeChat, WhatsApp, Skype, email, etc. The colorimeter also

has a color comparison function, the color difference threshold can be set and a variety of color

difference formulas can be selected, which can realize fast QC testing. It is equipped with an OLED

display, which can be used separately from the mobile phone APP.

III Parameters

Illumination geometry D/8, specular component include (SCI)

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Illumination light source Full spectrum LED light source

Measuring aperture 8mm

Measurement conditions Light source D65, field of view 10°

Measuring time About 1s

Color space CIE Lab, Luv, LCh, Yxy, CMYK, RGB, Hex

Color difference formula ΔE*ab, ΔE*uv, ΔE*94, ΔE*cmc(2:1), ΔE*cmc(1:1), ΔE*00

Repeatability

Standard deviation ΔE*ab is within 0.03 (Measurement

conditions: after calibration, the average value of 30

measurements on the whiteboard at an interval of 3s)

Dimension 57mm×57mm×89.4mm

Weight About 126g

Battery power Rechargeable lithium battery 3.7V@700mAh, can be used

continuously for 10,000 times under full charge

Display 128×64 dot matrix OLED

Charging port USB (Type-C)

Data transmission Bluetooth

Operating temperature range 0~45℃, 0~85%RH (no condensation)

Storage temperature range -25~55℃, 0~85%RH (no condensation)

IV Features

1. With OLED screen, it can be used alone, or used with mobile phone App.

2. Built in multiple electronic color charts, quickly match the closest color code, the color code

matching accuracy rate is greater than 90%.

3. Equipped with QC testing function, color difference threshold (tolerance value) can be set and a

variety of color difference formulas can be selected.

4. A variety of color spaces are available to facilitate color measurement for various needs.

5. Support color data import and sharing to achieve multi-device data sharing.Built-in compensation

optical path makes the values stable, allowing long-period calibration.

6. Built-in rechargeable lithium battery, can be used continuously for 10,000 times under full charge.

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V Operation

1. Power on/off

Power on: Short press the power button to turn on the colorimeter, after that, the indicator light will flash.

Shut down: Long press the power button to turn off the colorimeter; when the mobile phone is not

connected to Bluetooth, it will automatically turn off without any operation in 3 minutes; when the mobile

phone is connected to Bluetooth and it will automatically turn off without any operation in 30 minutes.

2. Bluetooth connection

Turn on the colorimeter, open the App and first display the LOGO. After the LOGO is displayed for 3s,

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. After the connection is successful, it will jump to

“Calibration interface".

Precautions:

 If there is a Bluetooth connection error or connection failure, you can restart the App and the

colorimeter, or turn off/start Bluetooth in the setting interface and then reconnect.

 Click the "Browse" button, you can enter the App to view historical data without connecting to the

colorimeter.

3. Calibration

After the App is connected to the colorimeter, enter the "equipment calibration" interface. The user can

perform the calibration operation or skip the calibration.

 Equipment calibration

After closing the bottom cap of the colorimeter, click the "Calibration" button. If the calibration is

successful, the colorimeter will directly enter the measurement interface; if the calibration is

unsuccessful, it will prompt "Calibration failed".

If it prompts that the calibration failed, the possible reasons are as follows:

(1) The bottom cap is not closed properly;

(2) The standard tile on the bottom cap is too dirty and needs to be cleaned;

(3) The attenuation of the light source leads to abnormal use, the colorimeter needs to be returned to

the factory for inspection and repair.

 Skip calibration

The colorimeter skips the calibration operation and enters the measurement interface. When the

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colorimeter has not been used for a long time, it is recommended to calibrate.

4. Measurement

After the App is successfully connected to the colorimeter, enter the main measurement interface. There

are two measurement modes: "Color Scan" and "Color Compare". After the App is opened, the default

mode is "Color Scan", there are two measurement switch buttons at the bottom of the main interface.

The font of the button becomes blue when selected. The current measurement mode, battery power,

historical records, model and connection status are displayed on the top information bar.

 Battery life

Display the current power of the colorimeter. When the battery is low, charge it in time.

 History records

Click the history icon, if it is the color measurement interface, enter the "My Colors" interface; if it is

the color compare interface and enter the "Compare History" interface.

 Connection status

Display the connection status of the colorimeter. If the App is connected to the colorimeter, the

corresponding model will be displayed; if not, it will prompt that the device is disconnected and the

model display will be blank.

4.1. Color measurement

After the colorimeter is connected, it will enter the color measurement interface. Click the "Scan" button

on the App or short press the button and the colorimeter will show the data to the App after measuring.

The display interface after color measurement including the following parameters:

 Color of the test sample: After the measurement, the measurement button area will display the color

value of the test sample and the value type can be set by the user.

 Matching colors: According to the color chart selected by the user, the closest three color codes are

matched and displayed.

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You can continue other operations as follows:

 Enter name

After measuring the color, you can enter a name for saving or sharing.

 Save

The user can enter name and click the "Save" icon to save the measured color. The color is saved

in "My Colors".

 Share

The user can enter name and click the "Share" icon to share the measurement results in image

format or data format (the sharing methods are: WeChat, WhatsApp, Skype, email, etc.) with others.

The shared data can be used for App data import.

 Select color chart

Choose a set of color chart or multiple sets of color charts for color matching in color measurement.

After the color chart is selected, only the colors in the color chart are calculated and matched. The

three color codes that are closest to the measured color are displayed.

4.2. Color compare

Click the "Color Compare" button at the bottom to switch to the color compare interface

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 Standard color measurement

Click the "Scan Standard" button and the current measured value will be used as the standard color.

 Sample color measurement

Click the "Scan Sample" button and the current measured value is used as the sample color.

The display interface after color difference comparison is as follows:

When the standard color is measured or added and the sample color is measured or added, then a

comparison measurement is completed (a comparison record is automatically stored). The color

difference calculation is performed on the two colors. The color difference comparison results generally

have the following three judgments:

 LabCh value

The LabCh value Δ is obtained by the sample color data minus the standard color data and the color

cast direction between the two is judged by ΔL, Δa and Δb.

 The value of ΔE

The value of ΔE is calculated according to the selected color difference formula.

 QC testing

QC testing is suitable for color difference detection in the production process. Users can set whether

this function is needed according to actual needs. If the QC testing function is set (QC testing is

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ticked) and the ΔE threshold is set, if the calculated ΔE is greater than the set threshold, "NG" is

displayed, and the judgment area is displayed in red; if the calculated ΔE is less than or equal to the

set threshold, it will display "PASS" and the judgment area will be green.

 ΔE setting

Set the formula of ΔE calculation and threshold of QC testing.

 Save standard

Users can enter the name of the color and save the standard color in “My Colors”.

 Input standard

Users can input Lab or LCh values as the standard color.

 Add standard color

Standard color addition is to add the measured color in "My Colors" or the color in the standard color

charts as the standard color. After clicking the "Add Standard" button, jump to the "add color"

interface, open the folder, click the color you want to add and then use the selected color as the

standard color and return to the measurement interface.

 Add sample color

Sample color addition is to add the measured color in the history or the color in the standard color

chart as the sample color. The operation of adding sample color is the same as adding standard

color above.

5. Menu bar

In the measurement interface, click the menu bar " " in the upper left corner, the menu bar as

shown in the figure below appears, corresponding to different parameter settings.

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5.1. Parameters settings

"Parameter setting" can set the color format, ΔE formula, QC mode and matching color chart.

 Color format

The color format corresponding to the color space includes: Lab, Luv, LCh, Yxy, CMYK, RGB and Hex.

Users can select different format to tick according to their needs. Up to 3 items can be selected. Lab is

ticked by default. Options cannot be changed, so you can choose up to 2 items.

After this option is changed, the color format in the “Color Scan” interface will change accordingly. The

color parameters in "My Color" will also change.

 ΔE formula

The ΔE formula corresponding to the type of color difference formula includes ΔE*ab, ΔE*uv, ΔE*94,

ΔE*cmc(2:1), ΔE*cmc(1:1), ΔE*00, a total of 6 color difference formulas. Users can choose one of them

as the color difference calculation standard according to their needs.

After this option is changed, the ΔE calculation of the "Color Compare" interface will be changed

accordingly. The results displayed in the "Compare History" should be recalculated and determined

according to the selected formula (if QC testing is selected, QC judgment must be recalculated based on

the calculated ΔE).

 QC mode

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The QC mode is the parameter setting for QC testing. The QC testing function can be selected

according to the needs. The threshold can be set in the range of 0.1-50. After the QC testing function is

turned on, the QC judgment result will appear in the "Color Compare" interface after each color

comparison. If the input threshold exceeds the range, it will automatically return to the default threshold.

 Select color chart

The purpose of selecting color chart is to select a set of color chart or multiple sets of color charts for

color matching in color measurement. After the color chart is selected, three closest color codes in the

color chart are matched and displayed.

 Reset to defaults

The parameter settings are restored to the factory options.

5.2. My Colors

"My Colors" is used to save the color measured by the user. The user can add up to 5 folders to save the

measured color. Folders can be created, deleted and modified. The measured color can also be deleted,

modified name and shared.

 Create folder

In the "My Colors" interface, click "Create Folder", enter the name and click "Confirm".

 Delete folder

To delete a single folder, click the box on the left side of the folder to select the folder (the box is ticked)

and click the "Delete" icon in the upper right corner to delete. If you need to delete all, first click the

"select all" icon to select all the folders (the boxes in front of all folders are ticked) and then click the

"delete" icon to delete all folders.

 Modify the folder name

After opening the folder, click on the name and the folder naming box will pop up, you can re-enter the

name and click "Confirm".

 View color data

The user can click on any folder to view the saved color and view the name of the saved color,

measurement time and measurement data. Single deletion or all deletion can be performed (the deletion

operation is the same as the folder deletion operation).

Click on a single color to view the measurement data and matching color codes and you can share and

modify the name.

 Color data sharing

In any folder, click the "Share" icon in the upper right corner and all the measured colors under the folder

will be exported in data format.

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