This is a low-frequency sound level meter that enables real-time analysis of 1/3 octave bands while measuring the G characteristic sound pressure level.
It can measure low-frequency sounds (1 to 500 Hz). It can measure low frequencies (1 to 100 Hz) that are difficult for humans to hear (or inaudible). 【Features】 - Equipped with G-weighting frequency characteristics and real-time analysis function for 1/3 octave bands. - Simultaneously measures low-frequency sound pressure levels (1 Hz to 100 Hz), G-weighted sound pressure levels, and 1/3 octave band levels (FLAT). - G-weighted frequency characteristics, RMS detection circuits, and 1/3 octave band filters utilize digital calculations via DSP. - Data can be imported to a computer through serial communication, allowing for editing in spreadsheet software.
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basic information
■Applicable Standards: JIS C 1514:2002 Class 1, ISO 7196:1995 (Filter Section) ■Measurement Functions Measurement of Low-Frequency Sound Pressure Level Low-Frequency Sound Pressure Level: FLAT Characteristics (DR: Frequency Range 1Hz to 500Hz) Low-Frequency Sound Pressure Level: FLAT Characteristics (FLAT: Frequency Range 1Hz to 100Hz) G Characteristics Sound Pressure Level: LG (Refer to G Characteristics ISO 7196) 1/3 Octave Band Real-Time Analysis (FLAT: Analysis Frequency Range 1Hz to 80Hz) ■Measurement Level Range G Characteristics 43dB to 143dB (including overload 3dB) FLAT Characteristics 33dB to 130dB 1/3 Octave Band 30dB to 143dB (including overload 3dB) ■Self-Noise Level G Characteristics 38dB or below FLAT Characteristics 45dB or below 1/3 Octave Band (Band values above 20Hz) 25dB or below ■Level Range G Characteristics Sound Pressure Level Meter Mode (Display Range 60dB) Display Full Scale 140dB to 100dB, 10dB Step 5 Ranges 1/3 Octave Band Analysis Mode (Display Range 70dB) Display Full Scale 140dB to 100dB, 10dB Step 5 Ranges
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■Calculation time setting: 10 seconds, 1, 5, 10, 15, 30, 60 minutes, Free (manual stop or maximum 8 hours) ■Overload characteristics: Display full scale plus 3dB ■Measurement frequency range: 1.0Hz to 500Hz (including microphone), 0.4Hz to 800Hz (amplifier only) ■Frequency weighting characteristics: G weighting, FLAT (digital method) ■Time weighting characteristics: Fast (125ms), Slow (1 second), 10 seconds ■Memory function: Manual store: Records the displayed measurement results in internal memory. Number of records: 200 Auto store: Continuously records measurement results in internal memory. Number of records: 6,000 ■Level trigger function: Starts calculation when the set level is exceeded ■Microphone: UC-24 (integrated preamplifier ceramic microphone) ■Display: LCD with LED backlight (192×192 dots) ■Power supply: 4 AA alkaline batteries ■Operating time: Approximately 6 hours ■Operating temperature and humidity range: -10°C to 50°C, 30% to 90% RH (no condensation) ■Dimensions and weight: Approximately 319 (H) × 100 (W) × 50 (D) mm, approximately 900g (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.