Casella CEL-246/K1 디지털 로깅 통합 소음 측정기 Type 2 키트 사용 설명서

1. 서론

This manual provides comprehensive instructions for the proper use, setup, operation, and maintenance of the Casella CEL-246/K1 Digital Logging Integrating Sound Level Meter Type 2 Kit. This device is designed for precise sound level measurements, incorporating Digital Signal Processing (DSP) technology for accurate and reliable data.

The CEL-246/K1 offers a wide measurement range, selectable frequency weightings (A and C), and time responses (Slow, Fast, Impulse). It features a non-decaying maximum hold function and a clear display showing current, highest, and average noise levels, along with a time history trend. Data logging capabilities are available via a USB output port.

2. 포함 사항

The Casella CEL-246/K1 Kit includes the following components:

• One (1) Casella CEL-246/K1 Sound Level Meter
• One (1) Acoustic Calibrator
• One (1) Foam Windscreen
• 하나(1) 휴대용 케이스
• One (1) Calibration Certificate
• Three (3) AA Batteries

3. 설정

3.1 배터리 설치

1. Locate the battery compartment on the rear of the sound level meter.
2. 구획 덮개를 엽니다.
3. AA 건전지 3개를 넣을 때, 극성(+/-)을 정확히 확인하십시오.
4. 배터리 덮개를 단단히 닫으세요.

3.2 Attaching the Foam Windscreen

Gently slide the foam windscreen over the microphone at the top of the sound level meter. This helps to reduce wind noise during outdoor measurements.

3.3 초기 전원 켜기

Press the power button to turn on the device. The display will illuminate, showing the current measurement mode and readings.

An image showing the Casella CEL-246/K1 Digital Logging Integrating Sound Level Meter. The device is blue and grey, with a display screen showing measurement data and a graph. A black foam windscreen is attached to the top microphone.

4. 사용 설명서

4.1 기본 작업

The CEL-246/K1 features simple two-button operation for ease of use. Refer to the on-screen prompts and the full user guide for detailed button functions.

4.2 Frequency Weighting

The meter supports two frequency weighting scales:

• A-Weighting: Attenuates lower frequencies to approximate the human ear's response, which is most sensitive between 3000 and 4000 Hz. Use for general noise measurements.
• C-Weighting: Reads all frequencies more uniformly, providing a better response to higher frequencies than A-weighting. Useful for pinpointing problems when A-weighted readings are very high.

4.3 Time Weighting

Selectable time responses include:

• 느린: Provides a slower response, suitable for measuring steady noise levels.
• 빠른: Offers a quicker response, ideal for capturing fluctuating noise levels.
• 충동: Designed for very short, sharp noise events.

4.4 Maximum Hold Feature

The non-decaying maximum hold feature captures and displays the highest sound pressure level detected until manually reset. This is useful for identifying peak noise events.

4.5 Data Logging and USB Output

The meter includes a USB output port for simple data logging. Connect the device to a PC to download stored data or for real-time data analysis using the optional software package. Data can be exported in spreadsheet format for further analysis.

4.6 자동 보정

The CEL-246/K1 supports auto calibration at a selected decibel level using the included acoustic calibrator. Refer to the full user guide for detailed calibration procedures to ensure measurement accuracy.

5. 유지관리

5.1 청소

Wipe the meter's exterior with a soft, dry cloth. Do not use abrasive cleaners or solvents. Ensure no moisture enters the device.

5.2 배터리 교체

Replace batteries when the low battery indicator appears on the display. Always use three (3) new AA batteries of the same type.

5.3 보관

When not in use for extended periods, remove the batteries to prevent leakage. Store the meter in its carrying case in a cool, dry place, away from direct sunlight and extreme temperatures.

5.4 교정

Regular calibration is crucial for maintaining measurement accuracy. Use the provided acoustic calibrator according to the instructions in Section 4.6 and the full user guide. It is recommended to calibrate the device before each critical measurement session.

6. 문제 해결

6.1 Meter Not Powering On

• 배터리가 극성에 맞게 올바르게 삽입되었는지 확인하십시오.
• 새로운 AA 배터리로 교체하세요.
• 전원 버튼을 확실하게 눌렀는지 확인하세요.

6.2 부정확한 판독값

• Perform an auto calibration using the acoustic calibrator.
• Ensure the foam windscreen is properly attached to minimize wind noise.
• Verify that the correct frequency (A or C) and time weighting (Slow, Fast, Impulse) are selected for your measurement environment.
• Check for any physical damage to the microphone or device.

6.3 Data Logging Issues

• Ensure the USB cable is securely connected to both the meter and the PC.
• Verify that the necessary software drivers are installed on your PC.
• Consult the software manual for specific data transfer instructions.

7. 사양

8. 보증 및 지원

For warranty information and technical support, please refer to the documentation provided with your purchase or contact Casella customer service directly. Keep your purchase receipt as proof of purchase.

Manufacturer: Cole-Parmer