ONOSOKKIPrecision sound level meter noise meter LA-7700The LA-7000 series high-function sound level meter uses a large-size color LCD touch screen, and the operability is greatly improved. You can use the sound level meter to start measuring with simple and intuitive operation. In addition to measuring and analyzing noise levels, the LA-7000 series high-function sound level meter can monitor the noise being measured during the measurement process. By monitoring, you can confirm the state of the object being measured, detect the sound source, and confirm the recording status, so that you can complete the measurement with peace of mind and certainty. In addition to measuring and analyzing noise levels, the LA-7000 series high-function sound level meter can monitor the noise being measured during the measurement process. At the same time, if you use the optional function, in addition to sound pressure level measurement, it can also have noise analysis*, spectrum analysis*, sound recording* and other functions. (*Optional function) The LA-7000 series high-function sound level meter can complete multiple measurement and analysis such as noise measurement, noise recording, spectrum analysis, and abnormal sound source detection with only one unit, which can greatly improve the work efficiency of measurement and analysis. The LA-7000 series high-performance sound level meter records and stores sound data, and analyzes and processes it in combination with our various products to meet a variety of needs such as time waveform analysis, sound quality evaluation analysis, jitter noise analysis, and sound spectrum simulation. LA-7700 Sound Level Meter Class 1 High Sensitivity Type. Suitable for measuring tiny sounds in anechoic rooms, etc. Measurement frequency range: 10 Hz - 20 kHz Measurement level range (JIS, IEC) A: 20 to 128 dB Body noise A: 12 dB or less LA-7500 Sound Level Meter Class 1 Wide-Area Broadband Type. Suitable for measuring ultra-low frequencies to audible frequencies Measurement frequency range: 10 Hz - 20 kHz 1 Hz to 20 kHz (when ultra-low frequency sound measurement function is turned on※2) Measurement level range (JIS, IEC) A: 24 to 138 dB Body noise A: 16 dB or less LA-7200 Sound Level Meter Class 2 High-Performance Type. Applicable to the measurement of environmental noise Measurement frequency range: 10 Hz - 8 kHz Measurement level range (JIS, IEC) A: 23 ~ 138 dB LA-7700 Precision Sound Level Meter LA-7500 Precision Sound Level Meter LA-7200 General Sound Level Meter Applicable standards JIS C 1509-1: 2017 Class 1 JIS C 1516: 2020 Class 1 JIS C 1509-1: 2017 Class 2 JIS C 1516: 2020 Class 2 IEC 61672-1: 2013 Class 1 IEC 61672-1: 2013 Class 2 ANSI S1.4-2014/Part1 Class1 ANSI S1.4-2014/Part1 Class2 Measurement frequency range 10 Hz ~ 20 kHz 10 Hz ~ 20 kHz 1Hz ~ 20kHz (When the ultra-low frequency sound measurement function is on※2) 10 Hz to 8 kHz Measurement level range (JIS, IEC) A: 20 to 128 dB C: 28 to 128 dB Z: 34 to 128 dB A: 24 to 138 dB C: 32 to 138 dB Z: 38 to 138 dB Z: 50 to 138 dB (When the ultra-low frequency sound measurement function is on) G: 35 to 138 dB (When the ultra-low frequency sound measurement function is on) A: 23 to 138 dB C: 30 to 138 dB Z: 36 to 138 dB Body noise A: 12 dB or less C: 20 dB or less Z: 26 dB or less A: 16 dB or less C: 24 dB or less Z: 30 dB or less G: 27 dB or less (When the ultra-low frequency sound measurement function is on) A: 17 dB or less C: 24 dB Below Z: 30 dB Below Microphone MI-1281 MI-1271 MI-1471 Microphone preamplifier MI-3270 Linear range extended range: 110 dB/Normal range: 80 dB Measurement range 10 to 120 dB (wide range)/50 to 120 dB/40 to 110 dB/ 30 to 100 dB/20 to 90 dB/10 to 80 dB/0 to 70 dB 20 to 130 dB (wide range)/60 to 130 dB/50 to 120 dB/ 40 to 110 dB/30 to 100 dB/20 to 90 dB/10 to 80 dB Reference range 50 to 120 dB Time weighting characteristic example LAF F (fast), S (slow), I (impact), 10 ms F (fast), S (slow), I (impact), 10 ms, 10 s (When the ultra-low frequency sound measurement function is on) F (fast), S (slow), I (impact), 10 ms Frequency weighting characteristic example LAF A, C, Z characteristics A, C, Z, G characteristics (When the ultra-low frequency sound measurement function is on) A, C, Z characteristics Measurement items Lp, Leq, LE, Lmax, Lmin Lpeak, LN (L5, L10, L50, L90, L95, Lhigh, Llow, Lave. Any two LN values) Sampling period 15.6 μs (Lp, Leq, LE, Lmax, Lmin, Lpeak), 100 ms (LN) Measurement time example: The following settings are used to measure for 10 minutes per hour and for a total of 24 hours. MT: 10 min, PT: 1h, TT: 24h Meas. Time Manual (OFF), arbitrary setting 0.1 to 199 hour 59 min 59.9 sec Minimum interval: 0.1 sec Meas. Period 1 min to 24 hour Minimum interval: 1 min Total Time 0.1 sec to 999 hour 59 min 59.9 sec Minimum interval: 0.1 sec Measurement start method Manual, internal clock, internal counter, level trigger Indicator function Touch-type color backlit 4.3-inch LCD Digital display 4 digits / resolution 0.1 dB / display period 1 s Bar indicator Extended range: range 100 dB / normal range: range 70 dB Battery level indication 4-stage indication Operation processing mode Online mode Standard functions: SLM-Single, Dual, Quad, Filter1/1, RTA1/1 Optional functions: Filter1/3 (LA-0702), RTA1/3 (LA-0702), FFT (LA-0703), LSIM (LA-0707), SQE Steady-state Noise (LA-0708A) Standard functions: SLM-Single, Dual, Quad, Filter1/1, RTA1/1 Optional functions: Filter1/3 (LA-0702), RTA1/3 (LA-0702), FFT (LA-0703), LSIM (LA-0707) * "SQE Steady-state Noise (LA-0708A)" optional function cannot be added. Offline mode (LA-0704 required) Standard functions: SLM-Single, Dual, Quad, Octave-Filter1/1, RTA1/1 Optional functions: Filter1/3 (LA-0702), RTA1/3 (LA-0702), FFT (LA-0703) ※ LSIM (LA-0707), SQE Steady-state Noise (LA-0708A) Optional functions require Ver4.0 or above. Overlay Overlay Standard function: RTA1/1 Optional function: RTA1/3 (LA-0702) Background noise compensation Standard function: RTA1/1 Optional function: RTA1/3 (LA-0702) Storage function Save in SD/SDHC memory card (SDHC memory card up to 32 GB) Storage mode MANUAL (CSV format), AUTO (instantaneous value, calculated value, CSV) ... Standard function LOGGING (instantaneous value 10 ms or 100 ms, CSV format) ... Standard function RECORD (WAVE format: sampling frequency 64 kHz) ... Requires the optional function LA-0704 Setting condition storage PanelCondition Internal memory (internal setting conditions 5, EZ measurement conditions 5/SD memory card, power-off memory), SDHC memory card Simple measurement mode 5 modes in total (EZ1: LAeq+LCpeak, EZ2: Recording, EZ3: Logging 100 ms, EZ4:NC, EZ5) Timer function built-in (year/month/day and hour:minute) Contact working time: Approximately 1 year (charging time: 24 hours in fully discharged state) Calibration history recording function Internal memory (number of items saved: Approximately 100 items) Contents (calibration value, adjustment VR position, use of calibrator/internal reference signal, calibration date and time) Backup auxiliary function Saves measurement setting conditions in internal memory Calibration reference signal (output signal for connection to external instruments) Calibration signal generated by built-in signal generator (1 kHz sine wave) -6 dB of full scale in normal range (-16 dB of full scale in extended range) Recommended calibrator SC-2500A SC-2500A SC-2500A, SC-2120A Output/Input Phone output signal (headphone output signal) Actual audio signal sound or recorded playback sound, using 1/1 octave filter function or optional LA-0702 1/3 octave filter function Actual audio signal or recorded playback sound through a specified 1/1 or 1/3 octave frequency band Maximum output power 0.03 mW (63Ω: 1 kHz condition), signal jack (dual channel 3.5 φ) AC signal output A/C/Z frequency-weighted main measurement signal linked output AC signal output voltage Output voltage: 0.707 Vrms ±5 % (normal range), 2.236 Vrms (extended range) ±5 % full scale input / 1 MΩ load, distortion 0.2 % or less, load resistance 10 kΩ or more / offset voltage within ±30 mV, output impedance 50 Ω ± 2 % AC/DC signal output DC, AC-Z (Z frequency characteristics), Through 3 options in total DC signal output voltage 2.5 V ± 20 mV (normal range, extended range) Full scale input / 1 MΩ load, range factor 0.25 V ± 10 mV / 10 dB, load resistance 10 kΩ or more, output impedance 50 Ω ± 2 % AC-Z AC (Z frequency characteristics) signal output voltage Output voltage: 0.707 Vrms ±5 % (Normal range), 2.236 Vrms (Extended range) ±5 % Full scale input / Distortion rate 0.2 % or less at 1 MΩ load, load resistance 10 kΩ or more / Offset voltage within ±30 mV, output impedance 50 Ω ± 2 % Through AC signal output voltage 0.707 Vrms± 5 % (Normal range, Extended range) Full scale input / Distortion rate 0.2 % or less at 1 MΩ load External control signal input action: Measurement starts after clearing. Control voltage: No-voltage contact input Input pulse width: 200 ms or more, absolute maximum voltage: 24.0 V Noise level comparison judgment output function (LA-0705) Open collector (output withstand voltage: DC+24 V or less, sink current: 20 mA or less) "Accessory (Multi I/O - BNC connector 2 m) output cable" Noise level comparison judgment object SLM mode (Main: Lp), Filter 1/1,1/3 (Main(BP): Lp), RTA1/1,1/3 (AP1: Lp), FFT (OVERALL: Instant) Communication interface RS-232C Transmission speed: 9,600, 115,200 bps. Multi-purpose I/O cable (sold separately) USB Supports USB (Ver.2.0) data communication, USB communication cable: USB (A) – Micro USB (female) (sold separately) ※3 External storage SD/SDHC memory card, maximum SDHC 32 GB ※4 Extension cable included (microphone extension) ※5 AG-3400 series (CE mark compliant within 30 m), cable maximum extension 103 m (AG-3305) Compensation function for exceeding 5 m. Power supply ・AA dry cell (alkaline or rechargeable) × 4 ・USB power supply (operating voltage range: DC 4.75～5.25V) ・External power supply AC adapter (PB-7090 power consumption at AC100 V, approx. 7 VA) External power supply operation function This unit's power switch function is linked to the AC adapter power supply. When using the external power on mode, the internal battery does not supply power. Set with the setting switch in the battery box. (Standard function) The wind shield compensation function compensates for the effect of installing a wind shield. ※ Even with a windshield, it complies with IEC61672-1 standards. Battery life (continuous operation)※6 Alkaline battery LR6: Approx. 12 hours, Ni-MH rechargeable battery: Approx. 12 hours Operating (storage) temperature range −10 to 50 ºC (−20 to 60 ºC) Operating (storage) humidity range 20 % to 90 % RH (10 to 90 % RH)) but without condensation Dimensions Approx. 90 mm (W) × 279 mm (H) × 42 mm (D) Weight (including batteries) Approx. 540 g (including batteries) Accessories AC adapter (PB-7090)※7 Signal cable (AX-501), Windshield (φ70 mm), Anti-drop strap, 4 AA alkaline batteries, Carrying case (including shoulder strap), SDHC memory card (4G), User manual (electronic CD-ROM), Simple operation guide