핫 와이어 점화 테스터

1. 제품 개봉 및 기본 사용법 익히기

1.1 주요 기술 사양

사양 항목	자세한 사양
Heating Element Parameters	Heating coil: Ni80/Cr20, φ0.5 mm, length 250 ± 5 mm, thermal resistance 5.28 Ω/m, heating power 0.26 W/mm ± 4%
Heated Wire Pretreatment	Pre-annealing of the heating wire coil: Time: 8–12 seconds (preset); Power: 0.26 W/mm ±4%
압력 제어	Coil Winding: Tension 5.4±0.05 N, pitch 6.35±0.5 mm, 5 turns wound within 31.5±0.5 mm
타이밍 매개변수	Coil test time: 120 s (preset range: 1 s–999.9 s)
시편 사양	Dimensions: Length 125±5 mm, width 13±0.5 mm, thickness 0.75±0.1 mm/1.5±0.1 mm/3±0.2 mm; during testing, the heating wire must be wound around the specimen 5 times.
Specimen Holder Parameters	The distance from the surface of the specimen holder to the connector plate is 70 mm; the height is 60 mm; designed to accommodate a fixed hot-wire coil.
Combustion Chamber Specifications	Volume ≥ 0.5 m³ (other sizes available upon request)
본체 재질	High-temperature spray-coated steel structures are heat-resistant and corrosion-resistant, making them suitable for long-term high-temperature testing environments.
작동 디스플레이	Proprietary extra-large LCD touchscreen + clear indicator lights + remote control operation

1.2 개봉 및 내용물 확인

1.2.1 포장 해제 및 육안 검사

When unpacking the equipment, handle it gently to avoid scratching the exterior casing with sharp tools. After unpacking, first inspect the exterior of the main unit to ensure there is no obvious deformation or dents, and that the buttons are not damaged or loose. Open the test chamber door and check whether any internal components have come loose, become deformed, or been damaged during shipping. If you notice any abnormalities with the equipment or accessories, do not power it on. Please contact us immediately.

1.2.2 본체 및 부속품

Hosting Categories:

번호	주의 사항
①	핫 와이어 점화 테스터
②	Specialized Winding Tools

그림 1

표준 액세서리는 다음과 같습니다.

번호	주의 사항
①	배기 파이프
②	Nickel-chromium resistance wire/heating wire, total length 25 m
③	5.4 N weight
④	전원 코드
⑤	Stainless Steel Clamps (for securing exhaust pipes)
⑥	예비 퓨즈

그림 2

Links to download the electronic user manual, warranty card, and other documents have been sent via email. Please download them as soon as possible. If you missed the email, you may contact us to request the download links again.

2. 안전상의 주의

2.1 전기 안전

2.1.1 전원 연결

220V single-phase power; power outlets must comply with safety standards, have proper grounding, and have a rated current that matches the equipment’s power rating (it is recommended to install a dedicated circuit breaker).

We recommend using a regulated power supply, as voltage fluctuations can also cause fluctuations in the heating power of the heating element.

2.1.2 접지 사양

The equipment must be reliably grounded, with a grounding resistance of ≤4 Ω. Do not use gas pipes, non-metallic water pipes, or neutral wires as substitutes for the grounding wire. After grounding is complete, use a Grounding Resistance Tester to measure the grounding resistance. Do not turn on the power until it is confirmed to meet the requirements, to prevent electric shock, equipment malfunctions, or measurement errors caused by poor grounding.

2.1.3 Contraindications for the Procedure

장비를 배선, 검사 또는 유지보수하기 전에 장비의 주 전원을 차단하고 잔류 전압이 없는지 확인한 후 작업을 진행해야 합니다.

감전 위험을 방지하기 위해 젖은 손으로 장비의 전원 스위치, 터치스크린 또는 계기판 버튼을 조작하지 마십시오.

전기 제어 캐비닛 내부에는 먼지나 이물질이 들어가 단락을 일으키거나 부품을 손상시킬 수 있으므로 공구나 종이 등의 이물질을 넣지 마십시오.

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 작동 안전

When using the winding tool, be careful not to pinch your hands, and apply force slowly when turning the handle;

When installing or removing a specimen, make sure the equipment is powered off;

Temperatures reach extremely high levels during hot-wire annealing and testing; special high-temperature-resistant gloves must be worn, and direct contact with the hot wire or high-temperature components is strictly prohibited;

The High Temperature Chamber door must be closed during testing. Observe the test process through the chamber viewing window to avoid burns from high-temperature radiation or sparks from burning materials;

After the test is complete, wait until the hot wire has cooled to room temperature before disassembling and cleaning it to avoid burns;

In the event of a malfunction or abnormality, immediately stop the test and troubleshoot the issue. For guidance, refer to “Chapter 7: Troubleshooting and Resolution of Common Problems” or contact our after-sales service;

Do not open the control cabinet door while the equipment is in operation to avoid touching internal high-voltage components and causing an electric shock;

Do not disassemble core components without authorization. Modifying the equipment will void the warranty and may result in safety incidents;

2.3 환경 안전

2.3.1 설치 요구 사항

The equipment must be installed in an air-conditioned room where the ambient temperature is maintained between 5°C and 25°C and the relative humidity is ≤85%. If the ambient humidity is high, condensation may form near the equipment door and test ports; in such cases, improve room ventilation or use a dehumidifier;

The installation site must be free of high concentrations of dust, corrosive gases (such as sulfur dioxide and chlorine), and flammable or explosive atmospheres. Direct sunlight must not be allowed to shine on the equipment to prevent corrosion of the equipment housing and deterioration of electrical components;

The storage of flammable and explosive materials (such as alcohol, gasoline, etc.) is strictly prohibited in the test area to prevent the risk of fire or explosion;

The work area is equipped with fire extinguishers (dry powder or carbon dioxide), and operators are familiar with how to use them;

Keep it away from areas with significant temperature fluctuations, such as near vents or indoor entrances;

Stay away from sources of strong magnetic and electric field interference (such as large electric motors and high-voltage equipment).

2.3.2 공간 요구 사항

The distance between the equipment enclosure and the wall, as well as surrounding structures (such as other test equipment and shelves), must be at least 1000 mm to facilitate maintenance;

At least 2000 mm of space must be left at the equipment door opening to ensure that the door can be opened in any direction, facilitating the placement and removal of test specimens.

2.3.3 Horizontal Placement

The device must be placed on a flat surface. Use a level to ensure the device is level: Place the level on the top surface of the device and make sure the bubble is centered. Note: The device has four adjustable feet that can be used to level it. Once leveled, ensure that all four feet are firmly in contact with the floor.

2.4 기타

본 설명서에 나와 있지 않은 사항에 대해서는 주의를 기울여 진행하시거나 당사에 문의해 주십시오.

3. 시험 전 준비 사항

3.1 Connecting the Equipment

번호	주의 사항
①	Exhaust vent, 100 mm in diameter, securely connected using an exhaust pipe and clamps and extending to the outside
②	Power Cord Connection—see Section 2.1

그림 3

3.2 Sample Preparation and Pretreatment

3.2.1 Specifications for Test Specimens

Dimensions: Length (125±5) mm × Width (13.0±0.5) mm; suitable for molded or sheet materials with thicknesses ranging from 0.25 mm to 6.4 mm;

Appearance Requirements: The specimen must be free of burrs and flash on all edges; the corner radius must be ≤1.3 mm; and the surface must be free of oil, damage, and cracks;

Quantity Requirements: Five test specimens must be prepared for each type of material to ensure that the test results are representative.

3.2.2 Sample Pretreatment Procedure

Drying: If the sample is damp, place it in a forced-air oven and dry it at (70±2)°C for 168 hours, then place it on silica gel or another desiccant and allow it to cool for at least 4 hours;

Environmental Conditioning: Place the dried specimens in an environment with a temperature of (23±2)°C and a relative humidity of (50±5)% and allow them to stand for at least 40 hours to ensure that the specimens are in a stable condition before conducting the test.

4. 터치스크린 프로그램 소개

4.1 메인 인터페이스

번호	주의 사항
①	중국어와 영어 간 전환
②	Annealing Interface
③	Hot-Wire Ignition Test Interface

그림 4

4.2 Annealing Interface

번호	주의 사항
①	Click to turn the lighting inside the test chamber on or off
②	Click to turn the exhaust fan on or off
③	Annealing Time Settings
④	Current annealing time displayed
⑤	Click to reset the current annealing time
⑥	Click to turn the test power on or off
⑦	Click to start or stop the annealing timer
⑧	메인 화면으로 돌아가기

그림 5

4.3 Hot-Wire Ignition Test Interface

번호	주의 사항
①	Click to turn the lighting inside the test chamber on or off
②	Click to turn the exhaust fan on or off
③	Test Duration Settings
④	Current Test Time Display
⑤	Click to reset the current test time
⑥	Click to turn the test power on or off
⑦	Click to start or stop the test timer
⑧	메인 화면으로 돌아가기

그림 6

5. Operating Procedures for the Glowing Wire Ignition Test (Reference: GB/T 14048.1-2023, Appendix M)

5.1 Hot-wire Annealing Treatment

5.1.1 Heating Element Handling and Installation

Cut the heating wire to the standard length of 250 mm ± 5 mm. After cutting, straighten the wire to ensure it is straight and free of bends. Wipe the surface of the heating wire with anhydrous ethanol to remove oil, dust, and other contaminants, then allow it to air dry.

Secure both ends of the straight heating wire to the annealing support, ensuring that the wire is taut and free of slack.

그림 7

5.1.2 Annealing Process

Close the test chamber door. Note: The test chamber is equipped with a safety device; if the door is open, the test power supply will not start.

그림 8

Navigate to the annealing screen in the touchscreen program and set the annealing time to 8–12 seconds (10 seconds recommended). Turn on the test power supply and slowly rotate the voltage adjustment knob to ensure the annealing power meets the standard requirements. If the heating wire power loss is 0.26 W/mm, the total heating wire power should be 250 mm × 0.26 W/mm = 65 W.

그림 9

Then, reset the current annealing time to zero and click to start the annealing timer. Once the annealing time reaches the set duration, the test power supply will automatically shut off.

Note: Do not turn on the fan during the annealing process. Allow the annealed filament to cool completely (approximately 5–10 minutes).

5.2 Using a Winding Tool

As shown in the figure below, use a special winding tool.

그림 10

번호	주의 사항
①	시편을 고정합니다
②	First, manually rotate the hot wire one full turn on the specimen.
③	The hot wire passes through the coil spacing control device; the standard specifies that the distance between each coil is (6.35 ± 0.05) mm.
④	A 5.4 N weight is suspended from the other end of the hot wire.
⑤	Slowly rotate the handle clockwise to automatically wind the hot wire around the specimen in 5 complete turns, spaced 6.35 mm apart.

5.3 Glowing Wire Ignition Test

5.3.1 시편 설치

Mount and secure the specimen with the coiled heating wire to the heating wire ignition test apparatus. See the figure below.

그림 11

Then close the test chamber door.

5.3.2 Initiation of the Glowing Wire Ignition Test

Close the test chamber door. Navigate to the glow wire ignition test screen on the touchscreen. Set the test duration to 120 seconds in accordance with the standard. Reset the current test time to zero. Turn on the test power supply and check whether the current power of the glow wire is still 65 W; if there is a discrepancy, make a slight adjustment. Then immediately start the test timer.

Observe the condition of the test specimen through the observation window in the test chamber door.

Note: Do not turn on the fan during the hot-wire ignition test.

5.3.3 Termination of the Glow Wire Ignition Test

If the specimen ignites during the test, immediately click “Stop” to halt the test (the test power will automatically shut off), and record the time at which the specimen ignited.

If, during the test, the specimen does not ignite but melts and is no longer in close contact with any of the five coils of the hot wire, stop the test (the test power supply will shut off automatically) and record the specimen’s melting time.

If, during the test, the specimen neither ignites nor melts, the test automatically stops after 120 seconds.

5.4 Tests on Multiple Specimens

After each test specimen has been tested, turn on the fan for at least 10 minutes to ensure that all exhaust gases are completely vented from the chamber, and then remove the specimen.

Wipe down the interior walls of the test chamber, the annealing rack, and the hot-wire ignition device with a dry cloth to remove any residual soot or drippings.

Each heating wire may be used only once. Refer to this chapter and perform the same test on five specimens.

5.5 Organization of Experimental Data

The thickness of each specimen and the ignition time or melting time should be recorded.

The test results are the average ignition time of the material at the specified measured thickness, recorded in seconds.

6. 테스트 후 절차

6.1 Equipment Operation After Testing

Turn the voltage adjustment knob to the minimum setting, then turn off the unit.

6.2 샘플 준비

Remove the test specimens after testing. If the specimens contain toxic or hazardous substances, they must be sealed and handled separately; the rest should be stored according to the classification of hazardous waste.

Set aside a portion of the samples for subsequent re-inspection or traceability, and label them with the test number and date.

6.3 장비 보관

6.3.1 Short-Term Storage Requirements

If the equipment is used on a daily basis, no further action is required after each test is completed and the equipment has been cleaned.

6.3.2 장기 보관 요건

If the device will not be used for an extended period (more than 1 month), please unplug the power cord and cover the device with a dust cover to prevent dust buildup.

The equipment should be powered on once a month and left on standby for half an hour to prevent the aging of electrical components (such as capacitors and contactors).

7. 문제 해결 및 일반적인 문제 해결 방법

결함 증상	가능한 원인들	문제 해결 단계	순서
Touchscreen is unresponsive or lagging	1. There are smudges on the touchscreen; 2. The device has been running for too long, causing the system to lag; 3. The touchscreen is malfunctioning	1. Wipe the touchscreen surface with a clean cloth; 2. Turn off the power and restart the device; 3. If the device still does not respond after restarting, check the touchscreen cable	1. Clean the touchscreen regularly; 2. Avoid running the device continuously for long periods; shut it down for a 10-minute break every 2 hours; 3. If any cables are loose, tighten them.
The heating element is not heating up	1. The heating element is not securely connected; 2. The voltage control knob is not set correctly; 3. The heating element is broken	1. Check that the heating wire is securely connected to the device terminals; 2. Turn the voltage adjustment knob and observe whether the power meter reading changes; 3. Check the heating wire for any abnormalities.	1. Reconnect the heating element and ensure good contact; 2. Adjust the power control knob to the standard power setting; 3. Replace the heating element and repeat the test.