This is a simple sound level meter that complies with measurement laws, JIS, and IEC standards.
It can measure noise levels and output data to a level recorder. It is also capable of calculations such as equivalent noise level and time-weighted noise level. 【Features】 ■ Wide range of 100dB With a wide dynamic range, there is no need to switch ranges during measurement, allowing for safe long-duration measurements. ■ 24-hour battery life Continuous measurement for long periods is easily achievable with dry batteries (when using alkaline batteries). ■ Built-in large-capacity memory For example, it can store instantaneous values every 100 milliseconds for up to 12 hours (432,000 data points). It can continuously store Leq and Lx every 10 minutes in the main memory for 50 days. ■ Built-in timer function The start and end times for automatic measurements can be set arbitrarily, enabling simultaneous measurements at multiple points.
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basic information
■Model Approval Number: S-51 ■Applicable Standards: Measurement Law General Noise Meter JIS C 1502:1990 ■Measurement Functions ・Instantaneous Value Lq ・Equivalent Noise Level Leq ・Single Noise Exposure Level Le ・Maximum Value Lmax ・Minimum Value Lmin ・Time-Averaged Noise Level Lx (any selected 5 values) ■Measurement Time: 1, 3, 5, 10 seconds; 1, 5, 10, 15, 30 minutes; 1, 8, 24 hours; and manual ■Maximum Measurement Time: 199 hours 59 minutes 59 seconds ■Measurement Level Range ・A-Weighting: 28dB to 130dB ・C-Weighting: 33dB to 130dB ・Flat Response: 38dB to 130dB ■Self-Noise Level ・A-Weighting: 22dB or less ・C-Weighting: 27dB or less ・Flat Response: 32dB or less *For more details, please download the PDF from our website or feel free to contact us.
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Applications/Examples of results
■Effective value detection circuit Digital calculation method Dynamic characteristics: Fast, Slow ■Data storage function Manual: Stores instantaneous values, storage time, and each calculated value along with the calculation start time as a set of data Auto 1: Continuously stores instantaneous values or Legs for the set measurement duration Auto 2: Continuously stores all calculated values and calculation start times for each set measurement duration. Supports only one event ■Pause function: In addition to the normal pause function, a feature to remove the last data for 3 seconds or 5 seconds can be selected ■Timer function: Sets the start and end times for storage in the auto store function ■Microphone: 1/2 inch electret condenser microphone ■Display: LCD with LED backlight (128×64 dots) ■Power supply: Four AA batteries ■Operating temperature and humidity range: -10°C to 50°C, 30% to 90% RH (no condensation) ■Dimensions and weight: Approximately 286 (H) × 85 (W) × 41 (D) mm; approximately 460g (including batteries)
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Company information
Since our founding in April 1986 as "Soki Shokai" with the vision of "creating a new century with measurement technology," we have continuously challenged ourselves to innovate in measurement through our "technical expertise" and "on-site capabilities." As a specialist in the surveying and measurement field within the Kanamoto Alliance Group, we will increasingly focus on "rental of surveying and measuring equipment," "development of automatic measurement systems," and "development of original products." We are committed to working together as a united team to meet the expectations of all our stakeholders. We sincerely appreciate the continued support and patronage of our customers and partners.
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