1. Unboxing and Basic Familiarization with the Equipment

1.1 Key Technical Specifications

The equipment complies with the test requirements for IPX3 and IPX4 specified in GB/T 4208-2017, Sections 14.2.3–14.2.4 and Figure 4.

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 outer 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

Main Components of the Equipment.

Figure 1

One of the freestanding cabinets contains a parts box filled with small parts, as shown in the figure below.

Figure 2

Other accessories are packaged separately; all major accessories are shown in the image below.

Figure 3

Download links for the digital user manual, software, warranty card, and other materials have been sent via email. Please download them promptly. If you missed the email, you may contact us directly to receive the download links again.

2. Safety Precautions

2.1 Electrical Safety

2.1.1 Power Connection Specifications

Based on the nameplate, connect the test chamber to the correct power source, typically 220 V, 50 Hz (60 Hz available upon request), and ensure the voltage and frequency are correct. Please use a dedicated circuit to avoid sharing the circuit with other high-power equipment. Verify that all connections are secure and free of looseness.

2.1.2 Grounding Requirements

The test chamber must be reliably grounded, with a grounding resistance of ≤4 Ω. It is prohibited to use gas pipes, non-metallic water pipes, or neutral wires as substitutes for the grounding wire. After grounding is complete, use the Grounding Resistance Tester to measure the ground resistance. Power may only be applied after confirming that the resistance meets the requirements, to prevent electric shock, test chamber malfunctions, or measurement errors caused by poor grounding.

2.1.3 Electrical Operating Contraindications

Before wiring, inspecting, or maintaining equipment, you must disconnect the main power supply and confirm that there is no residual voltage before proceeding;

Do not operate the test chamber’s power switch, touchscreen, or instrument buttons with wet hands to avoid the risk of electric shock;

Do not place any foreign objects (such as tools or paper) inside the electrical control cabinet to prevent dust or foreign objects from causing short circuits or damaging components;

Do not plug in or unplug power cords or signal cables while the equipment is running to prevent short circuits that could damage the controller or electrical components.

2.2 Operational Safety

When the swing tube is in operation, do not place any objects in the test area; personnel must stay well outside the swing tube’s range of motion, and must not extend their bodies or hands into the swing area; do not replace needles or plugs, or touch the swing tube, until it has come to a complete stop;

Before placing or removing a sample, ensure that the swing arm is reset to zero and the turntable has come to a complete stop; secure the sample exactly at the center of the turntable to prevent it from falling off while the turntable is rotating; the sample’s weight must not exceed the turntable’s load capacity to avoid damaging the turntable;

If the equipment malfunctions, non-professionals are prohibited from disassembling or repairing it; contact LISUN Customer Service or operate the equipment only under the guidance of a technician.

2.3 Environmental Safety

Sufficient clearance should be maintained between the wall and surrounding equipment (such as other test equipment and shelving) to allow for the swing of the test arm and to facilitate operation and maintenance;

Both cabinets must be placed on a sturdy, level surface. Use a level to ensure they are level, making sure the bubble in the level is centered. If the equipment is tilted, it may cause the swing arm to move unevenly or even damage the equipment. Note: The feet on both cabinets are adjustable to ensure they are level.

2.4 Other

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

3. Equipment Overview and Assembly

3.1 Equipment Assembly

3.1.1 Positioning of the Vertical Cabinet and Turntable

Position and align the two cabinets according to the swing arm dimensions. Be sure to leave sufficient space between the cabinets and the wall to allow the swing arm to rotate. One of the cabinets is equipped with a touchscreen; be sure to leave enough space for operation. Place the turntable exactly in the center to prevent the swing arm from colliding with it during normal testing.

Figure 4

3.1.2 Swing Pipe Installation

Each of the two upright cabinets has a washer that needs to be inserted into the connection between the upright and the swivel tube.

Figure 5

Remove the swing arm.

Figure 6

The swing pipe has an inlet at only one end.

Figure 7

Of the two connections between the vertical cabinets and the swing pipe, only one has an outlet; connect the inlet end of the swing pipe to the outlet end of the vertical cabinet. Note: The direction of the swing pipe should match the direction of the pointer on the vertical cabinet’s angle dial.

Figure 8

Tighten the three hex screws on each side.

Figure 9

Readjust the position of the cabinet and screw the feet on the bottom of the cabinet securely in place. This will prevent the cabinet from sliding when the swing arm rotates.

Figure 10

3.2 Cable Connections

Figure 11

Another upright cabinet is connected to a water pump cable.

Figure 12

The turntable is connected to the motor cable.

Figure 13

Please follow the link indicated.

Figure 14

This is a waterproof plug provided by Li Shan.

Figure 15

Plug one end into the outlet on the tall cabinet.

Figure 16

The other end is used to connect the sample. Note: The turntable automatically rotates forward and backward during the test to prevent the power cord from becoming tangled.

Figure 17

3.3 Water Tank Assembly

3.3.1 Water Pipe Connections

Figure 18

Note 1: Before using the device for the first time, please inspect the water tank and all water lines, remove any debris, and rinse with clean water.

Note 2: We recommend using deionized water or purified water (a water purifier may be used); if tap water is used, the minerals and impurities it contains can easily cause scale buildup, which affects the test water flow rate and may require frequent replacement of filter cartridges, unclogging of needles, cleaning of solenoid valves, and other maintenance—and may even damage the water pump.

3.3.2 Overview of the Water Tank’s Internal Structure

Figure 19

3.4 Powering On the Equipment

After verifying that all components are properly connected and that there are no abnormalities, turn on the device.

Figure 20

4. Introduction to the Touchscreen Program

4.1 Components of the Program’s Main Interface

4.1.1 User Interface

Figure 21

Note: If your equipment includes multiple swing pipes, you must select the size of the swing pipe currently in use on this screen.

4.1.2 Parameter Settings Interface

Figure 22

Note: Continuous power supply: Power-on time = test duration; power-off time = 0 s; No power supply: Power-on time = 0 s; power-off time = test duration.

4.1.3 Manual Window

Figure 23

4.2 Description of the Program Alarm Interface

Emergency stop has not been reset. Please turn the emergency stop button clockwise to reset it, then try again.

Figure 24

Figure 25

The swing-arm spray test is complete. Click “Back” to return.

Figure 26

No water resistance rating has been selected. Please click “Back,” select the desired water resistance rating, and try again.

Figure 27

The test time has not been reset. Please click “Back,” then click “Reset” to clear the previous test data and try again.

Figure 28

The swing arm has not been reset to zero. Please click “Back,” then click “Reset Swing Arm” to rotate the swing arm to the 0-degree position, and try again.

Figure 29

The water tank is overfilled. Refer to Section 3.3.2 to verify that the mechanical float is functioning properly, reset it, and lower the water level in the tank below the electronic float. Alternatively, check whether the upper-level electronic float is stuck; if it is jammed by debris, remove the debris and lower the float.

Figure 30

The water tank is low on water. Refer to Section 3.3.2 to verify that the water level in the tank is normal. Alternatively, check to see if the electronic float switch is stuck; if it is stuck due to debris, remove the debris and allow the float to rise. Tap “Back” to clear the alarm.

Figure 31

5. Preparations Before the Test

5.1 Sample Installation

5.1.1 Preliminary Inspection of Samples

Inspect the sample to ensure it is in good condition, with no damage or deformation; verify the test requirements for the sample (whether power-on testing is required, and the water resistance rating); if power-on testing is required, refer to Section 3.2 to connect the sample’s power cord to an appropriate power source.

5.1.2 Sample Mounting and Positioning

Place the sample exactly in the center of the turntable and secure it firmly with a tie-down strap to prevent it from shifting or falling off while the turntable is rotating;

If the sample has any protruding parts, ensure that they will not collide with the swing arm to prevent damage to the equipment and the sample;

For electrical testing, follow the instructions in Section 3.2 to connect the sample using a waterproof plug, socket, and power cord. Check that the connection is secure, with no loose connections or short circuits, and verify that all connections in the circuit are properly sealed against water.

5.2 Matching and Commissioning of the Swivel Tube and Turntable

5.2.1 Calibration of the IPX3 Test Swing Arm

According to the requirements of GB/T 4208-2017, Section 14.2.3, IPX3 involves water spray within 60° arc segments on either side of the swing tube’s midpoint. The nozzles in the non-60° arc segments of the swing tube must be sealed with plugs, leaving only the nozzles within the 60° arc segments on either side of the midpoint (a total of 120° arc segment). Ensure that the seals are secure and free of leaks.

Figure 32

5.2.2 Calibration of the IPX4 Test Swing Arm

According to the requirements of GB/T 4208-2017 Section 14.2.4, the IPX4 test involves water spray within 180° arc segments on either side of the swing tube’s midpoint (approximately 360°). All plugs on the swing tube must be removed and replaced with nozzles; check that the nozzles are functioning properly andand ensure they are not clogged or loose.

Figure 33

5.2.3 Turntable Height Adjustment

Manually adjust the turntable height according to the sample size so that the distance between the sample and the nearest point to the swing tube nozzle is ≤200 mm (in accordance with the requirements of Figure 4 in GB/T 4208-2017). After adjustment, lock the turntable height in place to prevent any height deviation during the test.

Figure 34

Note: Depending on the size of the sample, you may need to use different sizes of swing arms and turntables.

5.3 Pre-commissioning of Equipment

5.3.1 Equipment Functionality Check

If the equipment has not been used for an extended period, or if you need to verify in advance that all its functions are still operating normally, refer to Section 4.1.3 to check and confirm that the equipment’s pump, turntable, and swing pipe are functioning properly.

5.3.2 Needle Inspection and Flow Rate Pre-adjustment

Still referring to 4.1.3, turn on the water pump.

Figure 35

Note: Please ensure that water flows evenly from all nozzles. If any nozzles are clogged, you may not be able to adjust the water flow rate to meet the required standards. Use a nozzle cleaner to clear all nozzles, reinstall them, and then continue adjusting the water flow rate until it meets the standards.

Once commissioning is complete, you can turn off the pump.

6. Swivel-nozzle rain test

6.1 Start-up Test

On the touchscreen program interface, select the required waterproof rating. If the sample is powered, click “Sample Power,” then click “Clear and Reset” and “Pendulum Zero,” and finally click “Start Test” to begin the pendulum rain test.

6.2 The test is conducted automatically according to the standard settings.

6.2.1 IPX3 Oscillating Nozzle Rain Test

The pump starts, and the swing arm oscillates at a cycle of 120°/4 seconds. After 5 minutes of testing, the turntable automatically rotates the sample 90° horizontally, followed by another 5 minutes of testing. The total test duration is 10 minutes.

6.2.2 IPX4 Swivel Nozzle Rain Test

The pump starts, the swing arm oscillates at a rate of 350° per 12 seconds, and the turntable rotates at a constant speed of 1 r/min; the test continues for 10 minutes. The sample support has no water barrier, and the sample is exposed to water splashes from all directions.

6.3 Real-Time Monitoring of Tests

6.3.1 Water Spray from the Needle and Water Flow Rate

All nozzles delivered water evenly throughout the test, with no blockages. If the flow rate fluctuates during the test, the flow meter can be fine-tuned to keep the water flow rate stable at the standard rate.

6.3.2 Electrical Conditions of the Sample

Power to the sample is automatically turned on and off according to the set schedule. If an abnormality occurs during the test—such as a short circuit—the test can be stopped immediately; after inspecting the sample, the test can be repeated.

6.3.3 Other Exceptions

The swing angle of the swing arm is normal, with no jamming or unusual noises; the turntable rotates smoothly; the sample does not shift; and the program does not trigger any alarms. If any abnormalities occur, stop the test immediately, troubleshoot the issue, and then restart the test.

7. Post-Test Procedures

7.1 Immediate Actions Upon Test Completion

7.1.1 Remove the sample

Press the “Stop Test” button, or wait for the test to end automatically. The swing arm will automatically return to the 0-degree position, the turntable will stop rotating, and power to the specimen will be cut off (for specimens undergoing powered testing). Remove the specimen from the turntable.

7.1.2 Touchscreen

Check whether the test time display on the interface is working properly, then click “Clear and Reset” to prepare for the next test.

7.2 Shutdown

After all tests for the day are completed, turn off the water supply valve and switch off the power to the equipment.

7.3 Evaluation of Test Results

Use a dry cloth to wipe away any water stains from the sample’s outer surface, and then test the sample. Determine whether the sample passes the test based on the following criteria.

8. Daily Maintenance and Care of Equipment

8.1 Daily Cleaning

Wipe water spots and dust from the surface of the equipment, paying special attention to cleaning the turntable and swing arm areas to prevent water spots from forming limescale;

Wipe the touchscreen and control panel with a dry cloth to prevent water and dust from entering the internal circuitry;

Thoroughly clean the water tank at least once a week: Drain any standing water, then wipe it dry with a clean cloth. After cleaning, check the inner walls of the tank for rust or scale buildup. If there is minor rust, gently wipe it with a rust remover, then rinse thoroughly with clean water.

8.2 Regular Inspections and Replacements

Needle: Check that the needle on the oscillating tube is not clogged, loose, or deformed, and verify that the water drips evenly. If the needle is clogged, use a needle cleaner to clear the blockage.

Connections: Check all connections on the swing pipe, water lines, and electrical circuits to ensure there are no leaks or loose connections.

Filter Cartridge: Inspect the filter cartridge inside the filter. If the cartridge has turned brown (indicating it is saturated with adsorbed impurities), replace it with a new one immediately.

8.3 Maintenance of Idle Equipment

8.3.1 Short-term Idle (within 1 month)

Drain all standing water from the water tank and water lines to prevent scale buildup on the needles and tubing;

Cover the entire unit with a dust-proof cloth to prevent dust from entering;

Keep the equipment in a dry, well-ventilated area.

8.3.2 Long-term inactivity (more than 1 month)

Complete all maintenance tasks for equipment that will be idle for a short period; disconnect all electrical and water connections from the equipment; remove the water hoses, let them air dry, and store them properly;

Apply a layer of rust-preventative oil to the inner walls of the water tank and the surfaces of metal parts to prevent rust; store the equipment in a cool, dry place away from direct sunlight;

Apply a small amount of industrial lubricant to moving parts, such as turntable bearings, to prevent rust and seizing;

The equipment should be powered on once a month. Switch to the manual screen to test all functions, then shut it down after 5 to 10 minutes of operation to prevent circuit deterioration.

9. Troubleshooting and Resolving Common Issues