1. 서론
This manual provides detailed instructions for the proper use and maintenance of your GAIN EXPRESS SLM-267 Small Digital Sound Level Meter. Please read this manual thoroughly before operation to ensure accurate measurements and safe handling of the device. This device is designed for sound quality management in various environments.
Figure 1: GAIN EXPRESS SLM-267 Digital Sound Level Meter
2. 제품 오버view
The GAIN EXPRESS SLM-267 is a compact and portable digital sound level meter featuring a backlit LCD display for clear readings. It is equipped with functions for maximum/minimum value measurement, data hold, and automatic power-off to conserve battery life. A windscreen is included to minimize wind noise during outdoor measurements.
2.1 구성 요소 및 디스플레이
Figure 2: Labeled Diagram of the SLM-267
- Electret Condenser Microphone: Captures sound. Use the included windscreen to reduce wind interference.
- LCD 디스플레이: Shows measurement values, battery level, mode indicators (HOLD, MIN, MAX, OVER), and units (dBA).
- 전원/백라이트 버튼: Turns the device on/off and controls the display backlight.
- 최소/최대 버튼: Toggles between current, minimum, and maximum sound level readings.
- 홀드 버튼: 디스플레이의 현재 측정값을 고정합니다.
- 삼각대 마운트: A 1/4-inch screw hole for mounting on a tripod (tripod not included).
- 배터리 덮개: 배터리 설치를 위해 뒤쪽에 위치합니다.
Figure 3: Microphone with Windscreen
3. 설정
3.1 배터리 설치
- 장치 뒷면에서 배터리 덮개를 찾으세요.
- 배터리 덮개를 아래로 밀어서 엽니다.
- Insert three (3) AAA 1.5V batteries, ensuring correct polarity (+/-) as indicated inside the compartment.
- 딸깍 소리가 날 때까지 배터리 덮개를 다시 제자리에 밀어 넣습니다.
Video 1: Battery installation and basic operation demonstration. This video illustrates how to install batteries, power on the device, use the backlight, change modes, and hold data.
3.2 삼각대 장착 (선택 사항)
The device includes a 1/4-inch screw hole on the back for mounting onto a standard tripod. This can be useful for stable, long-term measurements or when hands-free operation is desired. Ensure the tripod is stable before mounting the device.
Figure 4: Tripod Mount
4. 사용 설명서
4.1 전원 켜기/끄기
- 전원을 켜려면: 를 누르세요 전원/백라이트 button once. The display will light up and begin showing real-time measurements.
- 전원을 끄려면: 길게 누르세요 전원/백라이트 버튼을 약 2초간 누릅니다.
4.2 백라이트 제어
- 기기의 전원이 켜진 상태에서 전원/백라이트 button briefly to toggle the display backlight on or off.
Figure 5: Backlit Display for improved visibility.
4.3 Mode Selection (MIN/MAX)
- 를 누르세요 MIN / MAX button to cycle through measurement modes: Current Value → Minimum Value (MIN) → Maximum Value (MAX).
- The corresponding indicator (MIN or MAX) will appear on the display.
4.4 데이터 홀드 기능
- 를 누르세요 잡고 있다 button to freeze the current measurement on the display. The "HOLD" indicator will appear.
- 를 누르세요 잡고 있다 button again to release the data hold and resume real-time measurements.
4.5 Backlight Alarm Setting
- When the measured value exceeds a preset threshold, the backlight will flash as an alarm. The initial default threshold is 100dB.
- To adjust the alarm threshold: While in 잡고 있다 모드, 길게 누르기 전원/백라이트 button for 2 seconds. Use the left and right buttons (MIN/MAX and HOLD) to adjust the setting value. Press the 전원/백라이트 버튼을 다시 눌러 설정을 확인하고 종료하세요.
4.6 자동 종료
- The device will automatically power off after 10 minutes of inactivity to save battery.
- To disable automatic shutdown: Long press the 전원/백라이트 button for 3 seconds when turning on the device. The display will show "UOF" (User Off) to indicate that auto-shutdown is disabled.
5. 측정 절차
To take a measurement, ensure the device is powered on and held in the desired measurement area. The display will show the real-time sound level in dBA. For accurate readings, ensure the microphone is pointed towards the sound source and is not obstructed.
Video 2: Product demonstration showing the sound level meter in use, including auto-off feature and tripod setup.
5.1 실제 적용 사례
The GAIN EXPRESS SLM-267 is suitable for a wide range of applications, including:
- Environmental noise monitoring in factories, offices, and residential areas.
- Assessing noise levels in vehicles, schools, and theaters.
- Checking audio system performance.
- Monitoring noise on transportation routes and construction sites.
- General noise engineering and health prevention assessments.
그림 6: 광범위한 응용 분야
6. 사양
| 특징 | 설명 |
|---|---|
| 측정 범위 | 30~130dBA |
| 정확성 | ±1.5dB |
| 해결 | 0.1데시벨 |
| 주파수 응답 | 31.5Hz - 8kHz |
| 주파수 가중치 | A 가중치 |
| 표시하다 | 백라이트 LCD |
| 기능 | Max/Min Value, Data Hold, Over-range Display |
| 전원 끄기 | Manual / Automatic (10 minutes of inactivity) |
| 배터리 표시기 | 예 |
| 전원 공급 장치 | AAA 3V 배터리 1.5개 |
| 무게 | 약 96.38g |
| 치수 | 약 56.1 x 177 x 36.03mm |
그림 7: 주요 사양
그림 8: 장치 크기 및 무게
7. 유지관리
- Keep the device clean and dry. Avoid exposure to extreme temperatures, humidity, or direct sunlight.
- 장치를 떨어뜨리거나 강한 충격을 가하지 마십시오.
- 장기간 사용하지 않을 때는 누액 및 손상을 방지하기 위해 배터리를 제거하십시오.
- 외부를 부드럽고 마른 천으로 닦으십시오. 연마성 세제나 용제를 사용하지 마십시오.
- Ensure the windscreen is properly fitted over the microphone to protect it from dust and debris.
8. 문제 해결
- 기기의 전원이 켜지지 않습니다: Check if the batteries are installed correctly with the right polarity. Ensure batteries are not depleted and replace if necessary.
- 부정확한 판독값: Ensure the microphone is not obstructed and the windscreen is clean. Avoid measuring in strong wind without the windscreen. Check for any physical damage to the microphone.
- 디스플레이가 어둡거나 깜빡거립니다: Replace batteries if the battery indicator shows low power. If the backlight is off, press the Power/Backlight button to turn it on.
- "OVER" displayed: The measured sound level exceeds the device's maximum range (130dBA). Move to a quieter environment or use a device with a higher measurement range.
9. 보증 및 지원
For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official GAIN EXPRESS web사이트. 보증 청구를 위해 구매 증빙 자료로 구매 영수증을 보관하세요.