Spectrum, Transmittance And Refelectance Tester

1. Unboxing and Basic Familiarization with the Equipment

1.1 Key Technical Specifications

Parameters	Note
Spectroscopy Platform	Long-Focus Crossed Asymmetric CT Spectroscopic System
Wavelength Accuracy	±0.5 nm; Resolution: ±0.2 nm; Sample scanning interval: ±0.1 nm
Chromaticity Coordinate Accuracy (Δx, Δy)	±0.005
Relevant Color Temperature Range	1000K–100000K; Color temperature accuracy: ±0.6%
Illuminance Range	5–200000 lx
Color Rendering Index	0–100.0; Accuracy: ± (0.3% of reading ± 0.3)
Photometric Linearity	±0.6%; Straylight: <0.015% (600 nm) and <0.03% (435 nm)
Points Time	0.1 ms–5 s
LCD Display	5-inch HD IPS capacitive touchscreen with a resolution of 480×854
Battery	4000 mAh rechargeable lithium-ion battery, capable of up to 20 hours of continuous operation
Dimensions	135 mm × 80 mm × 23 mm
Memory	Comes with an 8GB SD memory card for storing test data
Software	It runs on Windows 7, Windows 8, Windows 10, and Windows 11.

1.2 Unboxing and Checking the Contents

1.2.1 Unpacking and Visual Inspection

When unpacking the device, handle it gently to avoid scratching the casing with sharp tools. After unboxing, first inspect the exterior of the device to ensure there is no visible deformation or dents, and that the buttons are not damaged or loose. If you notice any abnormalities with the device or its accessories, do not turn it on. Please contact us immediately.

1.2.2 Main Unit and Accessories

Number	Note
①	LMS-6600TR
②	USB Cable
③	Power Adapter
④	Felt Bag
⑤	Handbag

Download links for the digital user manual, software, warranty card, and other materials have been sent via email. Please download them as soon as possible. If you missed the email, you can contact us to request the download links again.

Figure 0

1.3 Description of Equipment Structure

Number	Note
①	LMS-6600TR Main Unit
②	Base
③	Power button—press and hold to turn the device on or off
④	Standard Light Sources and Their Sleeves

Figure 1

Note: The LMS-6600TR includes both transmittance and reflectance testing; the LMS-6600T includes only transmittance testing (without a stand); and the LMS-6600R includes only reflectance testing.

2. Safety Precautions

2.1 Environmental Safety

Do not use the equipment in environments that are flammable, explosive, high-temperature, high-humidity, high-pressure, or dusty, to prevent short circuits, corrosion, or performance failures.

Avoid placing the device in direct sunlight to prevent screen deterioration and overheating of internal components.

Stay away from environments with strong magnetic or electric fields (such as large Voltage Transformers or microwave ovens) to avoid interfering with the accuracy of the test data.

2.2 Operational Guidelines

Do not plug in or unplug communication cables or other accessories during testing to prevent damage to the interface or data loss.

This device contains glass optical components and a touchscreen. Handle it with care during use; do not drop or crush it to prevent the screen from shattering or the optical components from being damaged.

When the probe is aimed at the light source being measured, avoid looking directly at bright light sources—especially ultraviolet light sources—to prevent eye injury.

To ensure accurate test results, try to avoid stray light interference during testing; if necessary, conduct the test in a darkroom.

Please use the standard USB cable to connect the device; using a different USB cable may cause some features to malfunction.

2.3 Power Supply and Battery Safety

The built-in lithium-ion battery has a capacity of 4000 mAh and is compatible only with the standard power adapter. Please note: Using a non-standard power adapter—especially one designed for high-current fast charging—may damage the battery.

Do not use the device for extended periods when the battery level is below 15 percent. If you notice the battery level is below 15 percent during initial use, charge it promptly. Do not charge the battery after it has been deeply discharged, as this may shorten its lifespan.

Ensure the area is well-ventilated while charging, keep the charger away from flammable materials, and unplug it promptly after charging is complete.

If the device will not be used for an extended period, fully charge it first, and then top it up every three months to prevent the battery from discharging completely and becoming damaged.

2.4 Maintenance and Calibration Specifications

Unauthorized personnel are strictly prohibited from opening the case for repairs, to prevent further damage or personal injury.

Equipment must be sent to a laboratory accredited for spectral and photometric calibration; the recommended calibration interval is once a year.

2.5 Other

For matters not covered in this manual, please proceed with caution or contact us.

3. Introduction to the Touchscreen Program

3.1 Main Interface

3.1.1 Main Interface Layout

Number	Note
①	Key Parameters and Spectral Diagrams
②	All Parameter Pages
③	Chromaticity Diagram
④	Calibration Button
⑤	Test Button
⑥	“Stop Test” button: Click this button to turn off the standard light source when you won’t be conducting tests for an extended period of time.
⑦	Click the “Save” button to save the test report as a CSV file, which you can then open in software on your computer.
⑧	Settings button: Tap to open the Settings screen

Figure 2

Note: When saving test files to a device, only the CSV format is currently supported (the PDF feature is still under development). If you need a report in PDF format, you can open the saved CSV file using desktop software and print it as a PDF.

3.1.2 Changing the Main Screen Display Settings

If you need to modify the display settings on the main screen, simply click the corresponding item to make changes directly.

3.2 Settings Interface

3.2.1 Interface Navigation

Number	Note
①	Measurement Settings
②	File Management: Read or delete saved test files
③	System Settings
④	Equipment Version Number and LISUN Contact Information

Figure 3

3.2.2 Measurement Settings Screen

Number	Note
① Points Mode	This includes both automatic and manual integration. Unless otherwise specified, please select automatic integration.
② Maximum integration time	The default value is 5000 ms; no changes are needed.
③ Average number of times	The higher the average number of runs, the more accurate the test data will be, but the longer the test will take. The default is 1 run.
④ Custom Bands	Customizable bands within the 350 nm to 950 nm range to display corresponding blue light test results; up to 3 bands can be set.
⑤ Correction Factor	Please keep the default values; do not modify them without authorization, as doing so may cause abnormal test results.
⑥ Measurable Wavelength Range
⑦ Blackboard reflectance	This applies only to reflectance testing. Please keep the default value and do not modify it without authorization, as doing so may result in abnormal test results.
⑧ Whiteboard reflectance coefficient
⑨ More Settings	Click to go to Page 2 of the measurement settings screen
⑩ Exit	Click to return to the Settings navigation page

Figure 4

Click “More Settings” to go to Page 2.

Number	Note
① Comparative Testing	This model does not have this feature.
② Reference Standard Testing
③ More Settings	Click to go to Page 1 of the measurement settings screen
④ Exit	Click to return to the Settings navigation page

Figure 5

Note: Leave the other parameters on this screen at their default values. Do not modify them without authorization, as doing so may result in abnormal test results.

3.2.3 System Settings Interface

Number	Note
① System Language	You can switch between Chinese and English
② Advanced Mode	Used to calibrate equipment; a password is required to use it. Calibration must be performed by a professional.
③ Set the date
④ Set the time
⑤ Screen Saver Duration	After the screen has been idle for the set amount of time, it will automatically dim.
⑥ Automatic Shutdown	The device will automatically shut down after the set standby time has elapsed.
⑦ Adjust screen brightness
⑧USB Communication	To transfer files, select “File Transfer”; to control a device using software, select “Serial Communication.”
⑨ Bluetooth Switch	Bluetooth functionality is still under development and is currently unavailable.
⑩ Automatic switching of standard light sources	To automatically turn the standard light source on and off, it is recommended that you leave this option unchecked, so that the standard light source remains on at all times. Frequent switching on and off can affect measurement results and reduce the service life of the standard light source.
⑪More Settings	Click to go to Page 2 of the system settings screen
⑫ Exit	Click to return to the Settings screen navigation page

Figure 6

Click “More Settings” to go to Page 2.

Number	Note
① Test Mode	If your model is LMS-6600TR, you’ll need to switch between test modes—transmittance or reflectance—here. You’ll need to restart the device after each switch.
② More Settings	Click to go to Page 1 of the system settings interface
④ Exit	Click to return to the Settings navigation page

Figure 7

Note: Leave the other parameters on this screen at their default values. Do not modify them without authorization, as doing so may result in abnormal test results.

4. Operate the equipment to conduct tests

4.1 Procedures for Reflectance Testing

Refer to Section 3.2.3, select “Reflectance Test” in the system settings, and restart the device.

Place the device in the cradle and press the calibration button to calibrate it. Note: Calibration must be performed each time the device is turned on.

After calibration is complete, remove the device from its base and position the test probe on the object being tested.

Figure 8

Minimize stray light between the test object and the test aperture; if necessary, perform the test in a darkroom. Click the “Test” button to complete the test. If desired, click the “Save” button to save the test report as a CSV file on the device.

4.2 Procedure for Transmittance Testing

Refer to Section 3.2.3, select “Transmittance Test” in the system settings, and restart the device.

Place the device in the base (the LMS-6600T model does not have a base), then press the calibration button to perform calibration. Note: Calibration must be performed each time the device is turned on.

After calibration is complete, place the sample between the standard light source sleeve and the test aperture.

Figure 9

If necessary, the test can be conducted in a darkroom. Click the “Test” button to complete the test. If desired, click the “Save” button to save the test report as a CSV file to the device.

5. Software Operation

5.1 Software Installation

Computer System Requirements: Compatible with Windows 7 or later (32-bit/64-bit).

Hardware Requirements: The computer must have a USB port to connect the device; if you need to print reports, you must have a printer installed (one that supports PDF printing).

Installation Order	Note
①	Double-click to install the LMS-6600TR software
②	Install the appropriate drivers based on your computer’s operating system.
③	If your computer is running a 32-bit operating system, you’ll need to install “vcredist_x86.exe.”

Figure 10

5.2 Use the software to open test reports saved on the device

Refer to Section 3.2.3 to change the USB communication mode to “File Transfer.”

Then connect the device to your computer using a USB cable. Double-click the software icon on your desktop, and the IoT test interface will open automatically.

Procedure	Note
①	Click to switch the test mode to transmission/reflection testing
②	Click “File,” select “Import File,” and then locate the corresponding CSV file using the path to view the corresponding test report in the software interface.

Figure 11

5.3 Testing Using Software to Control Devices

Refer to section 3.2.3, “USB Communication,” and change the USB communication mode to “Serial Communication.”

Connect the LMS-6600TR to your computer using the original USB cable. You should see a COM port with the following name in the computer’s “Device Manager,” indicating that communication with the device is working properly.

Figure 13

When you double-click the software’s desktop icon, the IoT testing interface will open automatically.

Instructions	Note
①	Click to switch the test mode to transmission/reflection testing
②	Refer to section 3.2.3, “Test Modes,” to verify that the device is in the correct test mode. Refer to Chapter 4 to set the device to calibration mode, then click “Calibrate” to perform calibration.
③	Refer to Chapter 4 to set the device to test mode, then click “Test” to run the test.

Figure 14

5.4 Processing Test Reports

All current reports are automatically saved in the list below the software. You can click the options on the right to export them as CSV or PDF files.

Figure 15

6. Daily Maintenance and Care of Equipment

6.1 Daily Pre-Use Inspection

Battery Level Check: After turning on the device, check the battery level. If it is below 15%, charge it promptly to prevent the device from shutting down during testing.

6.2 Long-Term Storage and Maintenance

Storage Conditions: Store in a dry, well-ventilated, and cool location at a temperature of ≤50°C and a relative humidity of <70% RH.

Preparation before storage: Fully charge the battery, turn off the device, place it in a flannel pouch, and keep it away from water, oil, chemicals, and corrosive liquids or gases.

Regular Maintenance: If the device will not be used for an extended period, remove it and charge it once every 3 months. Turn it on and let it run for 5 minutes before turning it off and storing it to prevent battery degradation.

6.3 Calibration and Performance Maintenance

Regular Calibration: Have the equipment professionally calibrated once a year to ensure the accuracy and reliability of test data, and keep the calibration certificate in a safe place after calibration.

7. Troubleshooting and Resolving Common Problems

7.1 The device won’t turn on

7.1.1 Possible Causes

The battery is dead; the battery is damaged.

7.1.2 Troubleshooting Steps

Charge the device using the standard power adapter and USB cable, then try turning it on again after 1 hour;

If the device still won’t turn on, the battery is damaged. Please mail it back to us so we can replace the battery for you.

7.2 Test Data Anomalies

7.2.1 Possible Causes

The test environment is subject to stray light interference; the equipment has not been calibrated for an extended period; and the test parameters are set incorrectly.

7.2.2 Troubleshooting Steps

Avoid stray light interference; if necessary, conduct tests in a darkroom environment;

Check the calibration schedule for your equipment. If it has been more than a year since the last calibration, have it calibrated promptly. You may send it to a third-party laboratory for calibration or return it to us, and we will calibrate it for you;

Check and confirm the test parameters: Verify that the integration time is set to “Auto” and that the wavelength range is set correctly. Refer to Section 3.2.2 to ensure that other parameters are set to their factory defaults; do not modify them without authorization.

7.3 The software fails to open or functions abnormally

7.3.1 Possible Causes

Incorrect USB communication mode settings; damaged USB cable; faulty computer port.

7.3.2 Troubleshooting Steps

Verify that the device’s USB communication mode is set correctly; restart the device if necessary, as described in Section 3.2.3;

Use the original USB cable, or try reconnecting it to a different USB port on your computer, and make sure the cable is securely connected;

If you are still unable to connect, try using a different computer to rule out any issues with your own computer.

7.4 Touchscreen Unresponsiveness Issues

7.4.1 Possible Causes

Stains or water marks on the screen; the device freezes; touchscreen hardware failure.

7.4.2 Troubleshooting Steps

Wipe the screen with a clean touchscreen cleaning cloth to remove any smudges or water stains, then try the operation again; press and hold the device’s power button for 10 seconds to force a shutdown, wait 30 seconds, then turn it back on to see if the touchscreen responds; if it still does not respond after multiple restarts, please send it back to us for repair.