Metrix+ SL 4005 Sound Level Meter 30-130dB Data Logging Noise Meter

A. Product Overview

The Metrix Plus SL 4005 is a portable digital sound level meter developed for measuring and analyzing sound pressure levels in industrial, commercial and environmental applications.

It is suitable for applications involving machinery, vehicles, ships, industrial environments, workplaces, environmental protection, educational institutions and aircraft noise measurement.

Important functions include:

• Digital sound level measurement
• Measuring range up to 130 dB
• 0.1 dB display resolution
• Fast and slow time weighting selection
• Measuring level selection
• Maximum value hold
• Low battery indication
• Over range indication
• AC output
• DC output
• Storage for up to 30 groups of measurements
• Measurement condition storage
• Data analysis capability
• RS 232C computer interface
• Built in 94 dB calibration signal at 1 kHz
• Optional USB interface
• Optional analysis software
• Optional ND 9 sound calibrator

The SL 4005 is designed for users who need more than basic sound level measurement and require storage, analysis and computer connectivity functions.

B. Working Principle

The Metrix Plus SL 4005 works by detecting sound pressure waves in the surrounding air.

When sound reaches the microphone, variations in air pressure are converted into an electrical signal. The internal electronics process this signal and calculate the sound pressure level.

The measured value is displayed in decibels.

The instrument provides fast and slow time weighting options.

Fast weighting is useful when sound levels change rapidly.

Slow weighting provides a more stable reading when sound levels fluctuate continuously.

The maximum hold function allows the highest measured sound level to remain available for review.

The SL 4005 can also store measurement data for later analysis. Its RS 232C interface can be used for connection to a computer with suitable accessories and software.

A built in 94 dB reference signal at 1 kHz is provided for calibration related checking.

C. Why It Is Used

The Metrix Plus SL 4005 is used when noise levels need to be measured objectively and recorded for further evaluation.

Industrial machinery, motors, compressors, production equipment, vehicles, workshops and environmental sources can generate varying levels of noise.

A digital sound level meter helps technicians measure these noise levels accurately instead of depending on human hearing.

Typical applications include:

• Industrial noise measurement
• Factory noise monitoring
• Machinery noise testing
• Vehicle noise measurement
• Workplace noise surveys
• Environmental noise assessment
• Occupational noise monitoring
• Workshop noise measurement
• Production area noise inspection
• Equipment comparison testing
• HVAC noise measurement
• Building acoustic checks
• Preventive maintenance
• Aircraft noise measurement
• Ship and marine equipment noise testing
• Educational and research applications

The data storage function is useful when measurements need to be reviewed later.

The computer interface makes the SL 4005 suitable for more detailed noise analysis and documentation.

D. Suitable Buyers

The Metrix Plus SL 4005 is suitable for professionals and organizations that require portable noise measurement with data storage and analysis capability.

Typical buyers include:

• Industrial safety departments
• Factory maintenance teams
• EHS professionals
• Occupational health professionals
• Environmental consultants
• Mechanical engineers
• HVAC engineers
• Facility management companies
• Machine manufacturers
• Automotive workshops
• Manufacturing plants
• Quality control departments
• Testing laboratories
• Research institutions
• Educational institutions
• Service engineers
• Industrial contractors
• Environmental monitoring agencies
• Equipment maintenance companies
• Noise measurement professionals

It is especially suitable for users who require additional features such as memory, maximum hold, AC and DC output and computer connectivity.

Frequently Asked Questions

1. What is the Metrix Plus SL 4005?

The Metrix Plus SL 4005 is a digital sound level meter designed for industrial, environmental and workplace noise measurement.

2. What sound level range does the SL 4005 measure?

The SL 4005 is designed for sound level measurement up to approximately 130 dB.

3. What is the resolution of the SL 4005?

The instrument provides a digital resolution of 0.1 dB.

4. Does the SL 4005 support data storage?

Yes. It can store up to 30 groups of measurement data.

5. Is the SL 4005 a data logging sound level meter?

Yes. It can store measurement readings for later review and analysis.

6. Does the SL 4005 have a maximum hold function?

Yes. The maximum hold function allows the highest measured sound level to be retained on the display.

7. Does the SL 4005 support fast and slow response modes?

Yes. The instrument provides both fast and slow time weighting options.

8. Can the SL 4005 connect to a computer?

Yes. It includes an RS 232C interface for computer connectivity with suitable accessories.

9. Does the SL 4005 support computer based data analysis?

Yes. Optional software and interface accessories can be used for further measurement analysis.

10. Does the SL 4005 have built in calibration?

Yes. It includes a built in 94 dB reference signal at 1 kHz for calibration related checking.

11. Is an external sound calibrator available?

Yes. An ND 9 sound calibrator can be used as an optional accessory.

12. Does the SL 4005 have AC and DC outputs?

Yes. AC and DC signal outputs are available.

13. Does the SL 4005 indicate over range conditions?

Yes. The instrument provides an over range indication.

14. Does it have a low battery indicator?

Yes. A low battery indication is provided.

15. Can the SL 4005 be used for factory noise measurement?

Yes. It is suitable for factories, production areas and industrial environments.