도관 압축 시험 장치

1. 장비에 대한 기본 이해

1.1 주요 매개변수

1.1.1 장비 기술 사양

파라미터	주의 사항
최대 압력	5000 N
압력 정확도	± 1의 %
Specifications for Pressurized Steel Blocks	50 × 50 mm
Steel Base Dimensions	300 × 150 mm
리프팅 범위	200 mm

1.1.2 적용 가능한 표준

The LS-B50 Conduits Compression Test Apparatus is designed and manufactured in strict accordance with Clause 10.2 and Figure 1 (IEC 61386-1:2017, Clause 10.2, Figure 1).

1.2 Equipment Configuration Verification

1.2.1 포장 풀기

기기를 개봉할 때는 날카로운 도구로 케이스에 흠집이 나지 않도록 조심스럽게 다루십시오. 개봉 후에는 먼저 기기 외관을 검사하여 눈에 띄는 변형이나 찌그러짐이 없는지, 버튼이 손상되었거나 헐거워지지 않았는지 확인하십시오. 기기 또는 부속품에 이상이 발견되면 전원을 켜지 마시고 즉시 저희에게 연락해 주십시오.

1.2.2 본체 및 부속품

번호	주의 사항
①	LS-B50 Main Unit
②	전원 코드

1.2.3 전자 문서 다운로드

We have already sent the download links for the electronic user manual, calibration certificate, warranty card, and other documents via email at the time of shipment. Please download them as soon as possible. If you have not received the email, please contact us to request the download links again.

2. 안전상의 주의

2.1 전기 안전

Before connecting the power cord, verify that the supply voltage is AC 220 V ±10% and the frequency is 50 Hz or 60 Hz. You must use a three-prong outlet with a protective ground, and the protective ground resistance must be ≤4 Ω. Never cut or disconnect the protective ground wire, as doing so poses a risk of electric shock.

2.2 환경 안전

Do not use in environments with flammable or explosive substances, strong electromagnetic interference, high temperatures and humidity, or excessive dust levels. Place the equipment on a level, stable surface, and ensure there is at least 0.5 m of operating space around it. Operating environment: temperature 15°C to 35°C, relative humidity 45% to 75%.

2.3 운영 절차

During testing, do not place your hands or any other part of your body within the pressure test area to prevent injuries from being crushed; test specimens must be securely fastened to prevent them from falling and causing safety incidents during testing; it is strictly prohibited to disassemble the equipment’s transmission mechanism or dismantle the machine without authorization.

3. 장비개요

3.1 Standard Diagram

See Figure 3-1 (taken from the IEC standard).

그림 3-1

3.2개의 제품 사진

그림 3-2를 참조하세요.

번호	주의 사항
①	전원 스위치
②	Buzzer; a buzzer sounds when the test is complete.
③	터치 스크린
④	Pressure block, used to apply pressure to the conduit specimen
⑤	압력 센서
⑥	스틸베이스

그림 3-2

4. 터치스크린 프로그램 소개

4.1 초기화면

그림 4-1를 참조하세요.

번호	주의 사항
①	Test Interface, Chinese
②	Test Interface, English
③	Pressure Calibration Interface, Chinese
④	Pressure Calibration Interface, English

그림 4-1

Note: The pressure readings have been calibrated before the device left the factory. If you need to recalibrate the pressure during use and have any questions about operating the calibration interface, please contact us.

4.2 테스트 인터페이스

그림 4-2를 참조하세요.

번호	주의 사항
①	To preset the load pressure value, click the ⑧ Pressure Value button. Do not set non-standard pressure values on your own.
②	Set the test duration; according to the standard, it should be set to 60 seconds.
③	Current Load Pressure Value
④	Current Test Duration
⑤	Number of loading pulses, preset according to different pressure values
⑥	Time from 0 to the preset pressure value
⑦	Reset, Release Pressure
⑧	Pressure values for different catheters—simply click to preset them
⑨	시작/정지 테스트
⑩	Reset: Clear the data from the last test and clear the beep alarm.
⑪	Reset the pressure value; set the current force value to 0
⑫	Up—click to raise the steel block
⑬	Drop; click to lower the steel block
⑭	홈 화면으로 돌아가기

그림 4-2

5. Pressure Testing of Electrical Conduits

5.1 준비

5.1.1 시험편 준비

Cut a test specimen from the conduit with a length of (200±5) mm. Maintain the test environment temperature at (23±2) °C. Before the test, measure the outer diameter of the conduit specimen.

5.1.2 Determination of Pressure Values

분류 코드	카테터 유형	Pressure N (tolerance ±4%)
1	초경량	125
2	빛	320
3	중국어	750
4	무거운	1250
5	초과 중량	4000

5.1.3 Positioning of Test Specimens and Equipment

Place the pipe specimen on the steel base, click “Up/Down” to move the steel block toward the pipe specimen. Stop just before contact is made, then click to reset the pressure reading to zero.

5.2 Pressure Test Procedures

5.2.1 Normal Test Procedure

Set the test duration to 60 seconds. Refer to Section 5.1.2, click the button for the desired pressure value to preset the pressure value and loading pulse, and then click “Start” to begin the test.

After the test begins, the steel block slowly applies pressure to the guide tube. When the pressure value begins to change, the timer starts counting the time from 0 until the preset pressure value is reached. When the current pressure value reaches the preset pressure value, the timer stops counting the time from 0 until the preset pressure value is reached, and the timer begins counting the current test duration.

When the current test duration reaches the preset test duration, the device sounds an alarm, but the current pressure value remains at the preset pressure value. According to the standard, after the test is complete, the outer diameter of the specimen at the flattened section must be measured without relieving the pressure. The difference between the original outer diameter and the outer diameter of the specimen after flattening must not exceed 25% of the original outer diameter measured before the test.

Click “Reset” to release the pressure and return the steel block to its initial position. After (60±2) seconds, measure the outer diameter of the flattened portion of the specimen again. The difference between the original outer diameter and the outer diameter of the flattened specimen must not exceed 10% of the outer diameter measured before the test.

After the test, the test specimen must not exhibit any cracks visible to the naked eye or with corrected vision without any additional magnification.

5.2.2 Debugging Load Pulses

Depending on the catheter’s compressive strength, the preset loading pulses may require adjustment. During normal testing, if the timer stops while the load is being applied from 0 to the preset pressure value and the duration is not within the range of (30±3) seconds, the number of loading pulses must be adjusted.

Taking 4000 N as an example, the corresponding preset number of loading pulses is 2700. If the actual loading duration is 25 seconds, which is less than the standard requirement of (30±3) seconds, you can change the number of loading pulses from 2700 to 2600 and try again; If the actual loading duration is 35 seconds—which exceeds the standard requirement of (30 ± 3) seconds—then try changing the number of loading pulses from 2700 to 2800. Continue adjusting until the loading duration meets the standard requirement.

6. 장비의 일상 유지보수 및 관리

6.1 Daily Maintenance After Shutdown

At the end of each day’s testing, clean dust and specimen debris from the equipment surfaces, and keep the steel blocks and steel bases clean and free of debris; use a special touchscreen cleaning cloth to clean the touchscreen; check the pressure-applied steel blocks for deformation or displacement.

6.2 Weekly Routine Maintenance

Apply a small amount of special-purpose lubricating grease to the equipment’s drive lead screw to ensure smooth, jam-free operation.

6.3 Maintenance During Long-Term Storage

After the equipment has been powered off and routine maintenance has been completed, cover the entire unit with a dust cover and store it in a dry, well-ventilated warehouse; power it on for 30 minutes each month to prevent components from being damaged by moisture.

6.4 Calibration Interval Requirements

측정 정확도와 장비의 작동 신뢰성을 보장하기 위해, 자격을 갖춘 제3자 계측 연구소에 정기적으로 보내 교정을 받는 것이 좋습니다. 권장 교정 주기는 12개월입니다. 사용자는 사용 빈도, 환경 조건 및 품질 시스템 요구 사항을 고려하여 구체적인 교정 주기를 결정할 수 있습니다.

7. Troubleshooting and Resolution of Common Problems

결함 증상	가능한 원인들	순서
Touchscreen lags; taps don’t register	Screen surface smudges causing interference, program crashes	Turn off the device, clean the screen, then restart it and try again.
No pressure reading is displayed for an extended period after the test starts	The specimen guide tube was not positioned beneath the steel block, and the steel block was too far from the specimen guide tube.	Reposition the specimen guide tube; use the down arrow key to move the steel block closer to the specimen guide tube, then try again.
The load time is not within the (30±3)s range.	Since catheters have different compressive strength, the preset loading pulses may need to be adjusted.	Follow the instructions in Section 5.2.2 for debugging.
Pressure Drift	After the equipment has been in use for a long time, it is important to calibrate the force readings.	We recommend having the equipment calibrated by a third-party metrology organization. You can adjust the pressure reading by accessing the calibration screen.