1. Unboxing and Basic Familiarization with the Equipment

1.1 Key Technical Specifications

LMS-7000UV	LMS-7000UV-VIS	LMS-7000VIS	LMS-7000VIS-NIR	LMS-7000UV-VIS-NIR
200–400 nm	200–800 nm	350–950 nm	350–1050 nm	200–1050 nm

1.2 Unboxing and Inspection

When unpacking the device, handle it gently to avoid scratching the casing with sharp tools. After unpacking, 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.

1.3 System Configuration and Overview

1.3.1 Core Hardware Components

Note: The table below lists the core hardware components of the entire system. The equipment you purchased may include only some of these components; please keep this in mind when following the instructions in this manual.

Component Name	Model	Core Features
Spectroradiometer	LMS-7000 Series	Measure spectral data and calculate colorimetric and photometric parameters
Large Integrating Sphere	Large Integrating Sphere with Cabinet (IS-*MA-CASE); Note: * indicates the diameter of the Integrating Sphere; standard sizes are: 1 m, 1.5 m, 1.75 m, 2 m, 2.5 m, and 3 m	Provides a uniform diffuse reflection environment and collects optical signals from samples for testing large specimens. The cabinet includes a power strip, an RS-232 communication module, and other components. The LMS-7000 is installed and secured inside the cabinet before shipment.
Small Integrating Sphere	Model: IS-*M, typically mounted on the left side of the cabinet; Note: * indicates the diameter of the Integrating Sphere; Standard sizes are: 0.3 m / 0.5 m	Provides a uniform diffuse reflection environment and collects light signals from samples for testing small samples
Stage	/	It must be installed inside a large Integrating Sphere (with a diameter of at least 1 m) to allow users to install standard lamps and the lamps under test.
Strip Light Fixture	/	Applicable only to Integrating Sphères with a diameter of at least 1.5 m. During use, it can be mounted on both sides of the stage to facilitate the installation of linear lights, such as LED tubes.
Auxiliary Light Fixture	/	Installed inside a large Integrating Sphere (with a diameter of at least 1 m) for mounting auxiliary lights
Cross-Line Laser	/	Installed inside a large Integrating Sphere (with a diameter of at least 1.5 m) to determine the center of the Integrating Sphere.
Power Meter	LS Series	Measure electrical parameters such as voltage, current, power, and power factor of the sample
DC Power Supply	DC Series	Provides a stable DC power supply for DC samples, reference lamps, and auxiliary lamps
AC Power	LSP Series	Provide a stable AC power supply for AC samples
Optical Fiber	CFO Series	Transmit the optical signal from the Integrating Sphere to the spectrometer
Standard Light	SLS Series	Integrating Sphere System for Calibrating Spectroradiometers
Auxiliary Lights	RLS Series	Applicable only to large Integrating Sphères (with a diameter of at least 1 m). Used to correct for the self-absorption effect of large light sources and improve test accuracy.
Attenuator	Pore size: 0.3/0.4/0.5/0.6	Reduce the optical signal intensity, extend the integration time, and stabilize the test results for stroboscopic samples

1.3.2 Software, manuals, certificates, etc.

At the time of shipment, a download link containing all the documents was sent via email. Please download them as soon as possible. If you missed the email, you can also contact us directly to request a new download link.

Includes important documents such as software, user manuals, warranty cards, standard lamp calibration certificates, and other related documents.

1.4 Measurement Parameters

Chromaticity Parameters: Chromaticity coordinates (x, y), Correlated Color Temperature (CCT), Color ratio, Peak wavelength, Half-width, Dominant peak wavelength, Color purity, Color Rendering Index (Ra, R1–R15), Spectral graph, TM30 (Rf, Rg), CQS

Photometric parameters: Luminous flux (lm), luminous efficacy (lm/w), radiant power, EEI, PAR, PPF

Electrical Parameters: Voltage (V), Current (A), Power (W), Power Factor, Harmonics (optional), DF (optional)

2. Precautions for Use

2.1 Electrical Safety

The system must be connected to a stable single-phase AC 220 V, 50/60 Hz power supply, and ensure proper grounding with a grounding resistance of ≤4 Ω;

Do not use the equipment if the power connections are loose or the cables are damaged.

2.2 Environmental Safety

The equipment must be placed in a dry, well-ventilated environment free of dust and corrosive gases;

Ambient temperature: 15–35°C; relative humidity: ≤65% (non-condensing);

Keep the equipment away from strong magnetic fields and strong electric fields.

2.3 Using An Integrating Sphere

2.3.1 Internal Coating Protection

Whenever entering the interior of the Integrating Sphere to perform operations (such as installing samples or standard lamps), white gloves must be worn; direct contact with the interior coating with bare hands is prohibited;

Do not use paper towels, rags, or other materials that come into direct contact with the coating to clean it. If dust accumulates, open the Integrating Sphere and use a hair dryer set to the cool air setting to blow the dust out from the inside toward the outside (at least once a week);

Be sure to secure the sample firmly during installation to prevent it from falling and damaging the coating; if a small area of the internal coating peels off, contact LISUN to obtain coating repair materials;

If the coating inside the Integrating Sphere has peeled off over a large area, or if the coating has darkened significantly due to lack of proper care, please replace the Integrating Sphere.

2.3.2 Switching and Handling of Integrating Sphers

Keep the Integrating Sphere closed when not in use to prevent dust from entering;

Do not disassemble the Integrating Sphere during transport. If disassembly is necessary under special circumstances, be sure to protect the internal coating to prevent contamination;

2.4 Standard Lamp Operating Procedures

The standard lamp has a lifespan of 1 year and must be replaced when it expires;

The standard lamp is hot immediately after use; do not touch it. Allow it to cool for 10 minutes before returning it to the lamp case;

Avoid getting stains on the surface of the standard lamp; if it becomes soiled, clean it before use or replace it with a new one;

Integrating spheres of different sizes must be used with standard lamps of the corresponding wattage (50W or 100W for large spheres, and 10W for small spheres).

2.5 Optical Fiber Operating Procedures

Optical Fiber must not be bent excessively (minimum bend radius ≥ 10 cm). Do not step on or squeeze the Optical Fiber, as this may damage it and cause abnormal test results.

2.6 Other

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

3. Equipment Assembly

3.1 Installation of Cabinet Equipment

3.1.1 Cabinet Placement and Front Panel Removal

The base of the cabinet and the large Integrating Sphere is equipped with swivel casters and locking mechanisms. Please unlock the locking mechanism, move the unit to the desired location, and then lock the mechanism securely to ensure it is in contact with the floor, thereby preventing the equipment from sliding during use.

We have completed the internal wiring of the cabinet prior to shipment. From left to right and top to bottom, the cabinet requires the installation of the LS series power meters, the DC-S series DC power supplies, and the LSP series AC power supplies.

Note: Some large DC and AC power supplies cannot be installed inside the cabinet and must be placed outside the cabinet. We will provide cables of sufficient length to facilitate wiring; please keep this in mind during use.

Please remove panels ① and ② from the cabinet.

Note: The key for the equipment’s power switch is attached to the back of part ③. Please keep it in a safe place.

3.1.2 Power Meter Installation and Wiring

Place the LS series power meter in the upper left compartment of the cabinet.

Number	Note
①	Connect the four test leads according to the labels: Connect A1 to the red terminal of current A, and A2 to the black terminal of current A; connect V1 to the red terminal of voltage V, and V2 to the black terminal of voltage V. Ensure that the connections are secure and tight.
②	Connect the RS-232 communication cable; the other end is already connected to the RS-232 communication box inside the cabinet.
③	Connect the power cord

3.1.3 DC Power Supply Installation and Wiring

Place the DC-S series power supply (such as the DC3005S) in the upper right compartment of the cabinet.

Number	Note
①	Connect the DC power output wires, making sure the red wire is the positive terminal and the black wire is the negative terminal.
②	Connect the RS-232 communication cable; the other end is already connected to the RS-232 communication box inside the cabinet.
③	Connect the power cord
④	Remote measurement terminal; no connection required
⑤	Proximal/distal toggle switch—no switching required

Note: Wiring configurations may vary for other DC power supply models, but the principle remains the same; simply connect them according to the actual situation.

3.1.4 AC Power Installation and Wiring

Place the LSP series AC power supplies in the lower section of the cabinet.

Number	Note
①	Connect the AC power output cable
②	Connect the RS-232 communication cable; the other end is already connected to the RS-232 communication box inside the cabinet.
③	Connect the power cord
④	As with ①, both are AC power output ports; you can connect to either one.

Note: Wiring configurations may differ for other AC power supply models, but the principle remains the same; simply connect them according to the actual situation.

3.1.5 Reinstalling the Cabinet Cover

After verifying that all equipment is properly installed and wired, reinstall and secure cabinet panels ① and ②.

3.2 Assembly and Commissioning of Large Integrating Sphere Accessories

3.2.1 Mount Installation

To prevent the large Integrating Sphere from opening during shipping, we secure it with screws. Please remove the two screws securing the Integrating Sphere.

The stage can be mounted either on top of the Integrating Sphere or at the bottom. Here, we’ll use the example of mounting the stage at the bottom. Open the large Integrating Sphere, loosen this screw, and remove the plug.

Feed the four-core cable from the stage through the opening at the bottom of the Integrating Sphere.

Then tighten this screw again. Make sure the screw handle is facing down.

Connect the four-wire cable from the test fixture to the corresponding four terminals in the cabinet, matching the colors one-to-one. Of the four wires, two are power wires (POWER) and two are sense wires (SENSE).

If you also have a small Integrating Sphere, note that the sphere comes with a two-wire power cord. When using the small Integrating Sphere, simply connect it to the terminal blocks in the cabinet shown in the figure above, matching the colors. The small Integrating Sphere is intended only for small samples powered by DC, so it comes with only a power cord and no sampling cable.

Note: For safety reasons, please do not plug in the cables for the large Integrating Sphere and the small Integrating Sphere at the same time. When using a specific Integrating Sphere, connect only the cable for that Integrating Sphere.

3.2.2 Optical Fiber Connections

During transport, the Optical Fiber is secured to the side of the Integrating Sphere. Carefully remove it and connect it to the Optical Fiber port on the large Integrating Sphere. Be careful not to bend the Optical Fiber excessively (bending radius ≥ 10 cm). Do not step on or squeeze the Optical Fiber, as this may damage it and cause abnormal test results.

Note: If your device includes two Integrating Sphères and uses a Y-shaped Optical Fiber, the Optical Fiber for the smaller Integrating Sphere is already connected inside the cabinet at the factory; you only need to connect the Optical Fiber for the larger Integrating Sphere.

3.3 Power Connection and Power-On Checks

3.3.1 Power Cord Connection and Power On/Off

Remove the power cord secured here and connect it to the power connector on the cabinet. The LPCE-3 system must be connected to a 220V, 50/60 Hz power source.

Insert the cabinet power switch key and turn it 90 degrees clockwise to turn on the cabinet’s main power.

Turn on the power switches for the power meter, DC power supply, and AC power supply, in that order.

Power-up sequence: First, turn on the cabinet’s main power switch, then turn on the power switches for each piece of equipment inside the cabinet one by one.

Shutdown procedure: First, turn off the power switches for each piece of equipment in the cabinet one by one, then turn off the cabinet’s main power switch.

3.3.2 Cross-Line Laser Adjustment

A cross-shaped laser is installed inside an Integrating Sphere with a diameter of at least 1.5 meters. Turn on the cross-shaped laser.

The center of the crosshairs should be aligned with the exact center of the Integrating Sphere. If the crosshairs are no longer aligned with the exact center of the Integrating Sphere due to shipping, remove this front panel from the cabinet, adjust the direction of the crosshairs, and secure it again.

3.3 Connecting via USB Cable

The equipment includes two USB cables. One end of the white USB cable connects to the LMS-7000 spectrometer installed inside the cabinet, providing power and communication for the spectrometer. The other end of the blue USB cable connects to the RS232 communication box installed inside the cabinet, which is used for communication with the LS series power meters, DC series DC power supplies, and LSP series AC power supplies.

Please connect both USB cables to the computer. Avoid using other USB extension cables or USB hubs whenever possible, as they may cause communication errors.

4. Software Installation and Configuration

4.1 Software and Driver Installation

4.1.1 Software Runtime Environment

System Requirements: Windows 7/8/10/11 (32-bit/64-bit); the computer must have at least two USB ports.

Note: If you have purchased multiple LMS-7000 units at different times, please use different computers to connect to them whenever possible and avoid mixing them, as this may cause the software to display abnormal data. Devices purchased during the same period will not experience this issue.

4.1.2 Installation

Number	Note
①	LMS-7000 Spectrometer Software: Double-click to install
②	LMS-7000 Driver—Please Install
③	RS232 Communication Module Driver—Please Install
④	If your computer prompts you to install “Microsoft . NET Framework” during the LMS-7000 software installation process, please double-click this file to install it, and then try installing the LMS-7000 software again.
⑤	For a list of tools you may need, please refer to document No. ⑥.
⑥	Please read this document for more detailed information about the software installation process.

4.1.3 Exception Handling

If, during the software installation process, your antivirus software or Windows Firewall flags a file as suspicious, please temporarily disable the antivirus software or Windows Firewall and then try installing the software again.

If the software fails to open when you double-click the icon after a successful installation, please verify that you are logged in to your computer with an administrator account. If the software still does not open after logging in with an administrator account, right-click the software icon to open its Properties window. On the Compatibility tab, check the box next to “Run this program as an administrator,” click “Apply,” and then double-click the icon again to open the software.

4.1.4 View the Device Manager on Your Computer

Open “Device Manager” on your computer. You should find “LMS-7000” and four additional communication ports in the following location (Note: Port numbers may vary depending on the computer and USB port used), and verify that there are no error messages. If any errors are present, please refer to sections 4.1.2 and 4.1.3 for troubleshooting instructions.

Note: If your device does not include an RS232 communication module, the four additional communication ports mentioned above will not appear in the computer’s “Device Manager.”

4.2 Software Settings

4.2.1 Adding Integrating Sphers of Various Sizes

If you have only one Integrating Sphere, you do not need to perform this step.

If your system includes two Integrating Sphères, click to add the large sphere and the small sphere at the locations shown in the figure below.

Type “Large Integrating Sphere,” click Add, and then click OK.

Then, add the “small Integrating Sphere” using the same method. The large and small Integrating Sphères use different system configurations and must be calibrated separately. When using them, please make sure you are working on the correct Integrating Sphere interface.

4.2.2 System Configuration

Take the large Integrating Sphere as an example. Select “Large Integrating Sphere.”

Number	Note
①	Click “System Configuration”
②	Select the model of the AC power supply you purchased, then click “Search Port.” Once communication is established, select the model of the DC power supply you purchased, and click “Search Port” again. If communication is successful, a “Communication Successful” prompt window will pop up and the communication port will be displayed automatically; if communication fails, a “Communication Failed” prompt window will pop up. Please refer to Section 4.1 for troubleshooting. Note: If you have not purchased an LISUN AC power supply or DC power supply, please skip this step.
③	Select the model of the power meter you purchased and click “Search Port.” If communication is successful, a “Communication Successful” prompt window will appear and the communication port will be displayed automatically; if communication fails, a “Communication Failed” prompt window will appear. Please refer to Section 4.1 for troubleshooting. Note : If you did not purchase a LISUN power meter, please skip this step.
④	The spectrometer model is LMS-7000. Click “Response.” If communication is normal, no prompt window will appear, and the correct wavelength range will be automatically detected. Do not modify the wavelength range on your own, as this may cause testing errors. If communication is abnormal, a “Spectrometer Not Found” prompt window will appear; please refer to Section 4.1 for troubleshooting.
⑤	The “Auto-On” and “Auto-Off” functions allow the software to automatically turn the sample lamp on or off at the start and end of a test, respectively. You can select these options as needed. Note : Do not select this option if you have not purchased the corresponding LISUN power supply or if the software has not successfully established communication with the power supply; otherwise, the software will encounter an error.
⑥	AC Power Baud Rate Options: Unless otherwise specified, please select 9600.
⑦	If you check the “Automatically Retrieve Electrical Parameters” box, the software will automatically communicate with the power meter to retrieve electrical parameters during testing; if you leave this box unchecked, all electrical parameters in the test report will be displayed as 0 . Note: If you have not purchased a LISUN power meter or the software has not successfully established communication with the power meter, you do not need to check this box.
⑧	For strobe lights, this feature is still under development; there is no need to check this box for now.
⑨	Enter the diameter of your Integrating Sphere. This information appears only in the test report and has no effect on the test results.
⑩	Select your test method. The 4Π test method involves placing the luminaire under test in the center of the Integrating Sphere; the 2Π test method involves placing the luminaire under test at the side opening of the Integrating Sphere. The 4Π test method is generally used.
⑪	Maximum integration time; the default is 10000 ms. No modification is required.
⑫	Once you’ve finished configuring everything, click OK to save.

Power Supply Models and Appearance. LSP Series/LSP-VARS Series AC Power Supplies:

LSP Series AC Power Supplies:

LSP-S Series AC Power Supplies:

LSP Series/LSP-VARS Series AC Power Supplies:

DC-S Series DC Power Supplies:

DC Series DC Power Supplies:

The power meter model number can be found directly on the front panel of the power meter.

Note 1: Switch the software interface to “Small Integrating Sphere” and configure all settings using the same method.

Note 2: Reinstalling the software or unplugging and replugging the USB cable will require re-establishing communication.

5. Calibration

5.1 Calibration Principles

Description of the Situation	Is recalibration necessary?
First Use	Calibration is required before use.
The equipment needs to be used every week.	We recommend calibrating once a week.
Equipment that has not been used for more than a week	Calibration is required before the next use.
Reinstall the software	Needs to be recalibrated
Replace the computer	Needs to be recalibrated
Plugging in and unplugging the USB cable	No recalibration required
Inserting and Removing the Optical Fiber Cable on the Spectrometer Side	No recalibration required
Inserting and Removing the Optical Fiber at the Integrating Sphere End	It is recommended to recalibrate.
Significant changes in environmental conditions, such as temperature and humidity	It is recommended to recalibrate.
The software has added a large Integrating Sphere and a small Integrating Sphere.	Calibration must be performed separately, and the calibration data for the large Integrating Sphere interface does not affect the calibration data for the small Integrating Sphere interface; each must follow the principles outlined above.

5.2 Procedure for Calibrating A Large Integrating Sphere

Take the large Integrating Sphere as an example. Refer to Section 3.2.1 to connect the cables from the large Integrating Sphere mount to the cabinet. For safety reasons, do not connect the cables from the small Integrating Sphere at the same time.

All of our standard lamps are constant-current DC light sources; please set the AC/DC switch on the 19-inch Standard Instrument Cabinet to DC.

Please remove the appropriate standard bulb, put on white gloves, and carefully screw it into the E27 socket on the stand. Then turn on the crosshair laser to ensure the bulb is centered exactly in the middle of the sphere.

Then turn off the crosshair laser and close the Integrating Sphere. If your device has two Integrating Sphères, make sure both are closed (the Y-splitter reads signals from both Integrating Sphères simultaneously).

Set the software to “Large Integrating Sphere.”

If your software is already communicating properly with the LISUN DC power supply, please proceed to Section 5.2.1; if your software is not communicating with the LISUN DC power supply, please proceed to Section 5.2.2.

5.2.1 The software is communicating normally with the LISUN DC power supply

If you have purchased a LISUN DC power supply and have successfully established communication with it in “System Configuration,” please follow the steps outlined in the table and diagrams below.

Number	Note
①	Click “Calibrate”
②	Select the model of the DC power supply you purchased, and the system will automatically select the correct communication port. If you are unsure, you can also click “Search Port” to reconfirm the communication port. If communication is abnormal, refer to Chapter 4 for troubleshooting.
③	Check the “Auto On” and “Auto Off” boxes to make the calibration process smarter.
④	The corresponding current and voltage values are listed on the standard lamp certificate and the standard lamp packaging. Please enter them correctly. Note: The specifications vary by lamp; please do not mix and match.
⑤	Click to control the DC power supply output and verify whether the test lamp lights up normally. When the test lamp lights up normally, the DC power supply should display “CC” (constant current output), and the displayed current value should match the entered value exactly; the displayed voltage will fluctuate around 25V. If the displayed current does not match the entered value (fluctuations in the last digit after the decimal point are normal) or if the displayed voltage differs significantly (for example, only around 10 V), the standard lamp is not lighting up properly. Please check the standard lamp’s filament, its installation, and all wiring, then try again.
⑥	The color temperature and luminous flux are listed on the standard lamp certificate and the standard lamp packaging; please enter them correctly . Note: The specifications vary by lamp; do not mix them.
⑦	For points accumulation, be sure to check the “Auto” box.
⑧	Average count; the default is 10; no modification is necessary.
⑨	The warm-up time is set to 15 minutes by default; no changes are needed. In other words, after you click “Start,” the software will wait 15 minutes for the standard lamp to warm up, and once its data has stabilized, it will automatically perform calibration.
⑩	Once you have confirmed that the above settings are correct, click “Start.” The software will automatically perform the following operations in the order listed: It will automatically control the DC power supply to turn on the standard lamp; it will automatically control the DC power supply to turn off the standard lamp and automatically perform a zero calibration; after the zero calibration is successful, it will again automatically control the DC power supply to turn on the standard lamp and begin the warm-up countdown; When the warm-up countdown ends, calibration is performed automatically; after calibration is successful, the DC power supply is automatically controlled to turn off the standard lamp.

After successful calibration, the following screen will appear.

Number	Note
①	Check whether the color temperature and luminous flux displayed here are close to the set values. A difference of 1 to 2 K in color temperature and 1 to 2 lumens in luminous flux is considered normal.
②	Click “Save and Exit” to complete the calibration.

The standard lamp is hot immediately after use. Wait until it has cooled to room temperature, then carefully remove it while wearing white gloves (do not touch the bulb to prevent contamination), and place it back in its case for proper storage.

5.2.2 The software is not communicating with LISUN’s DC power supply

If you have not purchased a LISUN DC power supply, or if you are unable to establish communication with it in “System Configuration,” please refer to the following table and illustrations for instructions.

Number	Note
①	Click “Calibrate”
②	Before turning on the standard lamp, turn off the Integrating Sphere, then click “Zero Calibration” and confirm that zero calibration was successful.
③	No need to verify the DC power supply model or communication port
④	Do not check the “Auto On” and “Auto Off” boxes, or an error will occur.
⑤	There is no need to enter current or voltage values; even if you enter them, the software will not perform any control functions.
⑥	Do not click to control the DC power output; doing so will cause an error.
⑦	The corresponding color temperature and luminous flux are listed on the standard lamp certificate and the standard lamp packaging. Please enter the information correctly. Note: The specifications vary by lamp; do not mix them.
⑧	For point accumulation, be sure to check the “Auto” box.
⑨	Average count; the default is 10; no modification is needed.
⑩	The warm-up time is set to 15 minutes by default and does not need to be changed. In other words, after you click “Start,” the software will wait 15 minutes for the standard lamp to warm up, and once the data has stabilized, it will automatically perform calibration.
⑪	Once you have confirmed that the above operations and settings are correct, manually control your DC power supply. Refer to the corresponding current values listed on the standard lamp certificate and the standard lamp packaging to ensure constant-current output and illuminate the standard lamp. When the standard lamp is lit normally, the DC power supply should display “CC” (indicating constant current output), and the displayed current value should match the entered value exactly. The displayed voltage will fluctuate around 25V. If the displayed current does not match the entered value (fluctuations in the last digit after the decimal point are normal) or the displayed voltage differs significantly (e.g., only around 10 V), the standard lamp is not illuminating properly. Please check the standard lamp’s filament, its installation, and all wiring before retrying. Once the standard lamp is lit normally, click “Start.” The software will automatically enter the warm-up countdown. When the warm-up countdown ends, calibration will begin automatically. After calibration is successful, please manually turn off the standard lamp using the DC power supply.

After successful calibration, the following screen will appear.

Number	Note
①	Check whether the color temperature and luminous flux displayed here are close to the set values. A difference of 1 to 2 K in color temperature and 1 to 2 lumens in luminous flux is considered normal.
②	Click “Save and Exit” to complete the calibration.

The standard lamp will be hot immediately after use, so please handle it with care when removing it (do not touch the bulb to prevent contamination). Wait until the standard lamp has cooled to room temperature before placing it back in the lamp case for proper storage.

5.3 Procedure for Calibrating A Small Integrating Sphere

Refer to Section 3.2.1 to connect the two-core cable from the small Integrating Sphere to the cabinet. For safety reasons, do not connect the cable from the large Integrating Sphere at the same time.

Set the software to “Small Integrating Sphere.”

Install the standard bulb. Note: The 0.3-meter Integrating Sphere does not include an E27 socket. Please wear white gloves and carefully remove the 10W standard bulb so that it can be installed in the 0.3-meter Integrating Sphere. The 0.5-meter small Integrating Sphere includes an E27 socket, so there is no need to remove the bulb.

Remove the 10W standard light bulb:

All other operations are exactly the same as for the large Integrating Sphere; please refer to Section 5.2.

6. Testing

6.1 Large Integrating Sphere Test

6.1.1 Verification of Calibration Information

Refer to Section 5.1 to determine whether recalibration is necessary.

6.1.2 Sample Installation

When the stage is mounted at the bottom, the sample’s light-emitting surface should face upward; when the stage is mounted at the top, the light-emitting surface should face downward—it must not face to the side. Use the crosshairs as a reference to adjust the sample’s position so that its light-emitting surface is exactly at the center of the Integrating Sphere, and secure it firmly with screws or clamps to prevent it from falling during testing.

If the sample is an E27 light bulb, it can be mounted directly onto the stage or mounted onto the stage using an E27 adapter; no power cord is required.

If the sample is a linear light fixture, you can install and use a linear light fixture clamp.

For other samples, please place them directly on the stage or secure them with screws; the stage is equipped with M6 screw holes. Make sure they do not fall off.

Connect the power cord to the two POWER terminals on the stage; the two SENSE terminals do not need to be connected. If using a DC-powered lamp, be sure to connect the positive and negative terminals correctly.

After installation, turn off the cross-hair laser and the Integrating Sphere. If your device includes two Integrating Sphers, make sure both are turned off at the same time.

6.1.3 Cabinet Power Switching

If the sample is powered by DC, set the AC/DC switch on the cabinet to the DC position; if the sample is powered by AC, set the AC/DC switch on the cabinet to the AC position.

6.1.4 Verification of the Correction Factor for Auxiliary Lights

Integrating Sphere testing relies on diffuse reflection from the sphere’s walls. Therefore, if the sample is a relatively large luminaire, “self-absorption” may occur—that is, some of the diffusely reflected light is absorbed by the luminaire itself, leading to deviations in the test results. Bare light sources and small luminaires can be tested directly; for larger luminaires, an Auxiliary Lamp must be used to correct for this effect. Click “Auxiliary Light Flux Correction.”

For bare light sources or small luminaires, select “Do not use an auxiliary light for correction,” which corresponds to a correction factor of 1. For larger luminaires, select the appropriate correction factor from the drop-down list. If no correction factor has been generated for this sample previously, you will need to use an auxiliary light to generate a new correction factor; please refer to Chapter 7.

Note: Even if the software or computer is shut down, the software will still use the auxiliary light correction factor from the previous session by default the next time it is opened. Therefore, you must verify that you are using the correct auxiliary light correction factor every time you perform a test.

6.1.5 Confirmation of System Configuration Parameter Settings

See Section 4.2.2.

For AC samples, select the corresponding AC power supply model under the “Power Supply” option, and select the corresponding power meter model under the “Power Meter” option.

For DC samples, under the “Power Supply” option, select the corresponding DC power supply model. If the power meter you purchased is not a high-precision LS2050 series power meter, then under the “Power Meter” option, select a DC power supply of the same model to use as the power meter.

6.1.6 Verification of Power Parameters via Software Navigation

If “AC Power” is selected under the “Power” option in “System Configuration,” you can enter the correct voltage and frequency for the sample on the corresponding screen.

If the “Power Supply” option under “System Configuration” is set to DC power, you can navigate to the corresponding screen to enter the correct current and voltage for the sample and select the output mode. CC stands for constant current mode, and CV stands for constant voltage mode.

Note: If you need constant-current mode, enter the sample’s rated current and the power supply’s maximum output voltage; if you need constant-voltage mode, enter the sample’s rated voltage and the power supply’s maximum output current. If the sample fails to light up, please verify that the sample’s voltage and current are within the power supply’s output range. For example, the DC3005S model has a maximum output voltage of 30 V and a maximum output current of 5 A.

6.1.7 Confirmation of Color Tolerance (SDCM) and Energy Efficiency Index (EEI) Settings

For the SDCM color tolerance option, “Default” is usually the best choice.

Click “Color Tolerance List Settings.”

You can set the number of color tolerance steps as needed. In the settings below, the solid line represents 5 color tolerance steps, and the dashed line represents 6 color tolerance steps.

The figure below shows schematic diagrams of standard ellipses for color tolerances of 5 and 6.

The figure below shows schematic diagrams of the standard ellipses for color tolerance in Steps 1 and 2.

EEI options.

Number	Note
①	Click EEI
②	Select the applicable standards and the type of lighting fixture

6.1.8 Verify Test Control Parameters and Conduct the Test

Number	Note
① Turn on/Turn off the lights	If communication with the LISUN power supply is successful in “System Configuration” but the “Auto On” and “Auto Off” functions have not been selected, you can still use this button to turn the sample light on or off.
② Points Period	Be sure to select “Automatic”; otherwise, the test results will be inaccurate.
③ Preheating Time	When the light fixture is first turned on, the data may be unstable. If you need to test data after the fixture has stabilized, enter a warm-up time (such as 10 minutes) based on the sample fixture. When you click to start the test, the software will automatically begin a warm-up countdown and start the test automatically once the warm-up is complete. The warm-up setting applies to both single tests and continuous testing.
④ Single Test	Click to run a single test
⑤ Continuous Testing	If you need to run a continuous test, enter the interval (e.g., 15 seconds) and the total test duration (e.g., 30 minutes), then click the “Continuous Test” button. During the test, the software will run a test every 15 seconds for 30 minutes.

If you want to skip the warm-up process while it is in progress, click “Stop,” and the software will begin the test immediately.

Whether for a single test or a series of tests, all test reports will be automatically sorted in chronological order at the bottom of the software.

After the test is complete, turn off the power to the test lamp and remove it. Do not store the lamp inside the Integrating Sphere when it is not being used for testing.

6.1.9 Processing of Test Reports

The software interface includes the following modules, where you can manually enter information about the sample luminaires.

Click “Save” to save all current test results to an LSD file. LSD files can only be opened using the LMS-7000 software.

Note: The LMS-7000 can be installed on any computer; however, if the computer has never communicated with the LMS-7000 device, opening an LSD file with the software may result in abnormal data display.

To open an LSD file using the software, first launch the LMS-7000 software, click “Open,” and select the corresponding LSD file. Do not open LSD files by double-clicking them directly.

The software indicates that it is currently in “Browse Mode,” which allows you to view test reports but does not allow you to perform tests or calibrations. Click the “New” button on the left to create a blank file for performing calibrations and tests.

Click to save all current test results to a CSV file.

See the figure below for the contents of the CSV file.

You can right-click the corresponding test report to export the spectral data as a TXT file.

The content of the spectral data document is shown in the figure below.

If you need to print the test report, click “Print Options” to customize the print settings as needed. Note: You can select only one of the CIE chromaticity diagram or the SDCM color tolerance diagram.

Click the “Print” drop-down list to choose whether to print the test report or the spectral data.

The test report printout is shown below.

The printed spectral data appears as shown below.

6.2 Small Integrating Sphere Test

Switch the software interface to “Small Integrating Sphere.”

The Xiaoji Ball does not have a fixture for auxiliary lights, so there is no need to apply any correction factors for auxiliary lights.

The small Integrating Sphere has no sampling leads, so the power meter cannot read the electrical parameters of the sample lamp inside the small Integrating Sphere. Small Integrating Sphères are generally used only for testing small DC-powered lamps, so simply select the corresponding DC power supply under the “Power Meter” option in “System Configuration.” If you need the power meter to read the electrical parameters of the sample lamp inside the small Integrating Sphere, please contact us for guidance on modifying the wiring.

The remaining steps are exactly the same as those for the large Integrating Sphere test; please refer to Section 6.1.

7. Use of Auxiliary Lights

7.1 Scenarios for Using Auxiliary Lights

Larger luminaires may exhibit self-absorption. If a correction factor for the auxiliary light has not been generated previously, you must first generate the correction factor using the auxiliary light before conducting the test. Self-absorption is related to the luminaire’s housing dimensions, shape, color, and other factors; therefore, the self-absorption coefficient varies for different luminaires.

Note: The darker the color of the luminaire and the larger its size, the more severe the “self-absorption” issue becomes. Users can gain practical experience regarding whether to apply an auxiliary light correction. For example, for certain small luminaires, if the correction factor obtained after applying the auxiliary light correction is 1.02, this indicates that the luminous flux test result will increase by 2% after applying the correction factor; For example, for certain large luminaires, if the correction factor obtained after applying the auxiliary light correction is 1.13, this indicates that the luminous flux test result will increase by 13% after applying the correction factor.

7.2 Steps for Generating Correction Factors

Number	Note
①	Click “Auxiliary Light Flux Correction”
②	If you reinstall the software, you can click to export the previously saved correction factors, and then import them once the software has been reinstalled.
③	If you need to add a correction factor, select “Add.”
④	If you already know the exact correction factor, you can check the “Enter Manually” box to enter the correction factor directly and save it.

If you need to regenerate the auxiliary light correction factor, follow the steps below.

Turn on the cabinet auxiliary light switch.

Based on the prompts displayed on the software interface:

Both the auxiliary light and the standard light must be installed inside the Integrating Sphere.

Number	Note
①	The auxiliary light is mounted on a special bracket. Please wear gloves, remove the auxiliary light bulb, and install it.
②	The standard lamp must be placed exactly in the center of the Integrating Sphere, but please do not connect the standard lamp’s power cord (used only to simulate the calibration environment).

Once installation is complete, turn off the Integrating Sphere. If your device includes two Integrating Sphères, make sure both are turned off.

Number	Note
①	Select the model of the DC power supply you purchased and click “Search” to find the correct communication port. If you did not purchase a LISUN DC power supply, select “Not Installed.”
②	The auxiliary lamp certificate and the lamp box list its current and voltage specifications; please enter them correctly . Note: If you have not purchased a LISUN DC power supply, you do not need to enter this information. However, please use another DC power supply to illuminate the auxiliary lamp at a constant current. The default warm-up time is 15 minutes; no modification is required.
③	Click “Next” to start the pre-launch countdown

Once the warm-up is complete, proceed to Step 2. Following the instructions here, open the Integrating Sphere. Remove the standard lamp. Place the lamp under test in the test position, but do not connect its power cord (this is only for simulating the test environment). Note: The auxiliary lamp remains on during this step.

Use the cross-laser to determine the position of the light fixture. Once installed, close the Integrating Sphere.

Just click “Next.”

After a brief calculation, the software will automatically calculate the correction factor required for this light fixture. Click OK to save.

Turn off the auxiliary lights. At the same time, turn off the cabinet auxiliary light switch. If the auxiliary lights will not be used for an extended period of time, remove them after they have cooled down and store them properly.

7.3 Testing Using the Auxiliary Light Correction Factor

During testing, the auxiliary light correction factor that was just generated will be used by default. Please refer to Chapter 6 for testing instructions.

Note: The auxiliary lights are used solely to generate correction factors; please do not turn them on during official testing.

8. Using an Attenuator

8.1 Introduction to Attenuators

We will include one attenuator with the LMS-7000 at no additional cost. If you need attenuators with different attenuation factors or a complete set of attenuators, please purchase them separately. Thank you.

The following attenuator accessories are included free of charge (the connector shown on the right side of the image; if used, it will slightly reduce the transmittance; customers may choose whether or not to use it).

The complete set of attenuator accessories is shown in the figure below.

8.2 How Attenuators Work

Many light fixtures have a flickering issue, though it is more or less noticeable depending on the fixture. When testing samples with higher power ratings and where the flickering is particularly severe, the results of continuous testing may fluctuate to some extent.

Note the automatic integration time shown in the figure below after the test is complete. Because the LMS-7000 spectrometer is highly sensitive, when testing this type of high-power luminaire, the automatic integration time should be relatively short—possibly around 10 milliseconds or even just a few milliseconds—which is insufficient to cover a full flicker cycle of the luminaire, resulting in inconsistent test results each time. The shorter the integration time, the more severe the stroboscopic effect, and the greater the variation in the results.

In this situation, if you need to obtain more stable test results, you must use an attenuator to reduce the sensitivity of the LMS-7000 and extend its automatic integration time. A neutral attenuator only reduces the intensity of the light signal; it does not alter the chromaticity parameters of the light signal. A set includes four attenuators, distinguished by their aperture sizes, which range from largest to smallest as follows: 0.6, 0.5, 0.4, and 0.3. The smaller the aperture, the lower the transmittance; the weaker the transmitted light signal, and the longer the integration time.

8.3 Principles for Selecting Attenuators

To ensure testing accuracy, the general rule for using attenuators is: avoid using them whenever possible; if an attenuator is necessary, use one with the largest aperture possible. Users should determine which attenuator to use through trial and error. For example, start by using an attenuator with a large aperture; if the results are still unsatisfactory, try again with an attenuator that has a smaller aperture.

8.4 Steps for Using an Attenuator

8.4.1 Attenuator Installation

The attenuator must be connected to the Optical Fiber; see the figure below for the connection procedure.

Then simply reconnect the Optical Fiber cable to the Integrating Sphere.

8.4.2 Recalibration

Whenever test conditions change—such as when an attenuator is added, removed, or replaced—the system must be recalibrated using the standard lamp. The maximum integration time for the LMS-7000 is 10000 milliseconds. After successful calibration, observe the automatic integration time.

The automatic integration time during calibration must be less than 10000 milliseconds. If the automatic integration time reaches 10000 milliseconds, the light signal received by the probe is too weak, and calibration will not proceed normally. Please try again with an attenuator that has a slightly larger aperture.

8.4.3 Test Results

The following are the results of actual comparative tests. When no attenuator was used to test a luminaire with a stroboscopic effect, the automatic integration time was as low as 1.5 ms. In continuous testing, the luminous flux fluctuated by nearly 15%, as shown in the figure below.

Using an attenuator with a aperture of 0.6, while keeping all other test conditions unchanged, we recalibrated the system and retested the same sample. The automatic integration time was extended to 15 ms, and the continuous test results have stabilized, with the luminous flux fluctuation ranging from only about 3%, as shown in the figure below.

8.5 Other

LISUN offers a variety of spectrometer models, such as the LMS-9500C, LMS-9000C, and LMS-7000, each with different prices and specific applications. When testing luminaires with stroboscopic effects, the LMS-9500C and LMS-9000C series spectrometers do not require the use of an attenuator. Please contact us for more details.

Flicker is also an important factor in evaluating the quality of lighting fixtures. We recommend that users contact us to purchase professional flicker testing equipment.

9. Routine Maintenance and Care of Equipment

9.1 Hardware

9.1.1 Daily Maintenance

Before turning on the device, check that the Integrating Sphere is closed and that there is no dust or debris inside; check that all connections are secure and that the USB cable and Optical Fiber are undamaged; after turning off the device, close the Integrating Sphere, disconnect the main power supply, and clean any dust from the surface of the equipment.

9.1.2 Weekly Maintenance

Use a hair dryer (set to the cool air setting) to blow dust out of the Integrating Sphere through its opening to prevent the dust from adhering to the coating; inspect the packaging of the standard lamp to ensure it is free of moisture and damage, and verify the expiration date.

9.1.3 Monthly Maintenance

Inspect the coating on the Integrating Sphere: If there is minor peeling, contact us to obtain coating repair materials; if there is extensive peeling, the Integrating Sphere must be replaced.

9.1.4 Annual Maintenance

Replace standard bulbs (regardless of whether they are working or not; they must be replaced when they reach the end of their service life).

9.2 Software

We will release software updates from time to time to add features and fix bugs. If you encounter any issues while using the software, please feel free to contact us at any time to obtain the latest version.

10. Troubleshooting and Resolving Common Problems

10.1 Hardware Communication Failures

Causes of the problem: Driver not installed or installation failed; incorrect USB port connection; incorrect device model selected;

Troubleshooting Steps: Check the Device Manager on your computer to verify that the LMS-7000 and the four COM ports are functioning properly (no exclamation marks);

Reinstall the drivers (with antivirus software disabled) and ensure that both the communication box driver and the spectrometer driver are successfully installed; connect the USB cable to a native USB 2.0 or 3.0 port on the computer (do not use a hub or USB extension cable); go to “System Configuration” in the software, reselect the device model, and click “Search for Port.”

10.2 Calibration Errors

10.2.1 The standard lamp will not turn on

Causes of malfunction: The AC/DC switch is not set to the DC position; “Auto Illumination” is not checked on the calibration screen; incorrect voltage or current parameters; broken filament;

Troubleshooting Steps: Ensure that the AC/DC switch on the cabinet is set to “DC” and that the standard lamp is securely connected; verify that “Auto Illumination” is checked on the calibration interface, and that the entered voltage and current match those specified in the standard lamp’s certificate; inspect the standard lamp’s filament—if it is broken or blackened, replace the standard lamp.

10.2.2 Calibration/Test Message: “Signal Too Weak”

Causes of malfunction: Optical Fiber not connected; Integrating Sphere lid not closed properly; standard lamp not illuminated; Optical Fiber bent or broken;

Troubleshooting: Check that the Optical Fiber is securely connected at both ends and is not excessively bent; close the Integrating Sphere door to ensure a tight seal and prevent external light from entering; verify that the standard lamp and sample lamp are illuminated; if they are not, follow the troubleshooting steps in Section 10.2.1; if the Optical Fiber is broken, contact us for a replacement.

10.3 Test Data Anomalies

10.3.1 Inaccurate Test Data

Causes of malfunction: Failure to perform regular calibration, incorrect correction factor for the auxiliary lamp, improper selection of the Integrating Sphere, damaged coating, or issues with the sample itself

Procedure: Recalibrate according to Chapter 5, ensuring the calibration interval is ≤ 1 week; set the correction factor to 1 for bare light sources and small luminaires, and use the correct correction factor for large luminaires; Use a large Integrating Sphere for large samples and a small Integrating Sphere for small samples to avoid size mismatches; if the Integrating Sphere’s coating is severely peeling or has darkened significantly, contact us for repairs; please test several additional sets of different sample types; if most results are normal, the issue lies with the sample itself.

10.3.2 Excessive Variation in Test Results

Causes of the malfunction: Insufficient warm-up time, severe sample flicker, and failure to use an attenuator;

Solution: Extend the warm-up time (e.g., 20–30 minutes) and perform the test only after the sample has stabilized; if the sample exhibits severe flickering, install an attenuator (preferably one with a large aperture), recalibrate the instrument, and then perform the test.

10.3.3 Electrical parameters are displayed as 0

Causes of the malfunction: “Automatically retrieve electrical parameters” was not checked; the wrong power meter model was selected; wiring errors;

Troubleshooting Steps: Go to “System Configuration” in the software and verify that “Automatically Retrieve Electrical Parameters” is checked; refer to Section 4.2.2 to select the correct power meter model, then rescan the ports; check the power meter wiring to ensure that A1, A2, V1, and V2 are connected correctly and are secure.

10.4 Software Operation Malfunctions

10.4.1 The software won’t start (no response when double-clicked)

Causes of the problem: Not running as an administrator, incomplete software installation, missing Microsoft . NET Framework;

Solution: Log in to your computer with an administrator account, right-click the software shortcut, and select “Run as administrator”; uninstall the old software, delete any remaining folders, and then reinstall it; install Microsoft . NET Framework and restart your computer.

10.4.2 Unable to Export Test Reports

Causes of the problem: Insufficient software permissions, the save path does not exist, or the file is in use;

Solution: Run the software as an administrator; select an existing save location (such as Drive D) to avoid saving to the system drive; close any open report files (such as Excel or .txt files) to prevent the files from being locked.

10.4.3 LSD Files Cannot Be Opened

Causes of the problem: The file was not opened using the software; the software version is incompatible; the file is corrupted;

Solution: First, open the LMS-7000 software, then select the LSD file via “File → Open” (do not double-click to open it directly); ensure that the software version matches the version used to generate the LSD file; if they do not match, update the software; if the file is corrupted, you will need to retest.

10.5 Power Failure

10.5.1 DC Power Supply OVP/OCP Indicator Flashing Alarm

Cause of failure: Incorrect OVP/OCP parameter settings, short circuit in the sample;

Procedure: Turn off the DC power supply output, press the OVP button, and set it to the power supply’s rated voltage +0.5 V (e.g., set the DC3005S to 30.5 V); Press the OCP button and set it to the power supply’s rated current plus 0.05 A (e.g., set to 5.05 A for the DC3005S); check whether the sample is short-circuited; if so, repair the sample and retest.

10.5.2 No AC Power Output

Cause of the malfunction: Overload protection triggered;

Troubleshooting Steps: Check the AC power output wiring and sample connections to ensure there are no loose connections or short circuits; if the overload protection is triggered, turn off the power, allow the unit to cool for 5 minutes, and then restart it. Ensure that the sample power remains within the AC power output range; for example, the maximum output power of the LSP-500VARS is 500W.