Sound Level Meter LSDM-T2011

Introduction

Sound is a universal sound level meter that measures the exponential time weighted sound level. It is small in size, light in weight and easy to carry unit. It has 1/2 inch electret condenser type microphone and offers 4 measurement parameters data output to connect with PC. This analytical equipment is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

Sound Level Meter is used to test the sound level of environment, machinery, vehicle, ship and other noise also used for industrial environmental protection, construction, health care, teaching and research department.

Specifications

Standards	651.2, 1.4.2
Parameters	Lp-Sound Level
Measured Leq	Equivalent Continuous A Sound Level
Measured Lmax	Maximum Sound Level
Measured LN	Percent of All Readings Over Alarm Value Set
Testing Range Lp	30 to 130 dB ( A Weighting ) 35 to 130 dB ( C Weighting ) 40 to 130 dB ( F Weighting )
Testing Range Leq	30 to 130 dB (10 Seconds, 1 Min, 5 Min, 10 Min, 15 Min, 30 Min, 1 Hour, 8 Hours, 24 Hours)
Testing Range LN	0 to 100 %
Resolution	0.1 dB
Accuracy	1 dB
Frequency	A /C / F (Flat)
Time Weighting	Fast (125 ms) / Slow (1 Second)
Microphone	1/2 Inch Electret Condenser Type
Memory	30 Groups with Measuring Conditions
Calibration	94 dB at 1k Hz (sinusoidal)
Frequency Range	20 to 12, 500Hz
Alarm Value Set	30 to 130 dB
Alarm Output	Optional Relay Contact (NC)
Indicator	Low Battery Indicator
Dimensions	236 × 63 × 26 mm
External DC	6V, DC, 100mA
Power Supply	4 × 1.5 V Size (UM-4) Battery
Weight	170 g

Features

Permits choice A, C, F weighting and ‘Fast’ / ‘Slow’ response times

4 measurement parameters used

Memorize 30 groups of measurements

Designed with 4 digit display, function mark, time weighting and weighting icon

94 dB at 1k Hz (sinusoidal) Calibration

Use data output to connect with PC

FAQs

1. What are the key factors to consider when selecting this analytical equipment for laboratory use?

When selecting this analytical equipment, key factors include: 1) The instrument's precision and accuracy to meet experimental requirements; 2) Compatibility with the types of samples and applications you will be working with; 3) Ease of use and maintenance requirements; 4) Safety features to protect operators and samples; 5) Calibration and certification requirements; 6) Cost-effectiveness and long-term reliability; 7) Technical support and service availability from the supplier. Evaluating these factors ensures that the instrument meets your laboratory's specific needs.

2. How often should this analytical equipment be calibrated to ensure accurate results?

It is recommended to calibrate this analytical equipment at least once every 6-12 months under normal usage conditions. More frequent calibration (every 3-6 months) may be necessary if: 1) The instrument is used continuously for extended periods; 2) It is exposed to harsh environmental conditions (temperature fluctuations, humidity, dust); 3) It is used for critical applications requiring high precision; 4) The instrument has been moved or subjected to physical shock; 5) Calibration checks indicate significant deviations from standard values. Always follow the manufacturer's calibration guidelines.

3. What are the common maintenance procedures required for this analytical equipment?

Common maintenance procedures include: 1) Regular cleaning of the instrument's exterior and sample contact surfaces to prevent contamination and ensure proper operation; 2) Inspection of moving parts (if applicable) for wear and lubrication as recommended by the manufacturer; 3) Replacement of consumable parts (filters, bulbs, reagents) according to usage guidelines; 4) Verification of performance parameters (temperature, pressure, voltage) regularly; 5) Storage of the instrument in a clean, dry environment when not in use; 6) Keeping a maintenance log to track service activities and identify potential issues early; 7) Following the manufacturer's specific maintenance schedule for optimal performance and longevity.

4. Can this analytical equipment be used with different types of samples, and are there any compatibility considerations?

Yes, this analytical equipment can be used with a variety of sample types, but compatibility considerations are important: 1) Check if the instrument's materials are compatible with the chemical composition of your samples (avoid corrosive or reactive substances that may damage the instrument); 2) Ensure that the sample volume and concentration are within the instrument's recommended range; 3) For biological samples, consider sterility requirements and potential cross-contamination risks; 4) For volatile or hazardous samples, ensure proper ventilation and safety precautions are in place; 5) Consult the manufacturer's documentation for specific sample compatibility guidelines, and perform compatibility tests with new sample types before regular use.

5. What should be done if the analytical equipment malfunctions or produces inconsistent results?

If malfunctions or inconsistent results occur: 1) First, check the instrument's user manual for troubleshooting guidelines specific to the issue; 2) Verify that the instrument is properly calibrated and within its calibration period; 3) Inspect for obvious issues such as loose connections, damaged parts, or incorrect settings; 4) Clean the instrument thoroughly to remove any contamination that may affect results; 5) Repeat the experiment with a known standard sample to determine if the issue is with the instrument or the sample; 6) If the problem persists, discontinue use of the instrument to prevent further damage or inaccurate results; 7) Contact technical support or a qualified service technician for diagnosis and repair, providing details of the issue and any troubleshooting steps already performed.