Rion NL-27 Sound Level Meter adalah alat yang digunakan untuk mengukur tingkat tekanan suara atau kebisingan di sekitar kita. Alat ini memiliki tingkat akurasi yang tinggi dan diklasifikasikan sebagai kelas 2 sesuai dengan standar internasional. Hal ini membuatnya cocok digunakan dalam aplikasi yang membutuhkan pengukuran kebisingan yang akurat, seperti di bidang industri, lingkungan kerja, konstruksi, hiburan, dan lain sebagainya.
Rion NL-27 Sound Level Meter adalah alat yang handal dan akurat untuk mengukur tingkat kebisingan di lingkungan sekitar. Dengan fitur-fitur yang canggih dan kemampuan pengukuran yang andal, alat ini sangat berguna dalam mengendalikan dan memantau kebisingan di berbagai aplikasi industri dan lingkungan lainnya.
FITUR Rion NL-27
- Kisaran linearitas yang luas; dari 30 hingga 130 dB tanpa peralihan jangkauan.
- Memulai dengan cepat dan pengoperasian yang mudah untuk mengukur Lp, Leq, Lmax, LE dan LCpeak.
- Rentang frekuensi: dari 20 Hz hingga 8 kHz
- Pembobotan frekuensi: A dan C
SPESIFIKASI Rion NL-27
| Standard compliance | General-Purpose Sound Level Meter according to Japan Measurement Law JIS C 1509-1: 2017 class 2, IEC 61672-1: 2013 class 2 CE mark, WEEE Directive |
| Measurement functions Processing functions (normal mode) | Sound level Lp, equivalent continuous sound level Leq, sound exposure level LE, maximum sound level Lmax, peak sound level LCpeak (only when peak range was selected) |
| Measurement time settings | 1 min, 5 min, 10 min, 1 h |
| Microphone | 1/2 inch electret condenser microphone Model: UC-52, sensitivity level: -33 dB ± 3 dB (re.1 V/Pa) |
| Measurement level range (normal mode) | A-weighting: 30 dB to 137 dB, C-weighting: 36 dB to 137 dB |
| Linear operation range (A-weighting, 1 kHz) | 30 dB to 137 dB |
| Peak sound level measurement range | 65 dB to 140 dB |
| Residual noise level | A-weighting: max. 24 dB, C-weighting: max. 30 dB |
| Measurement frequency range | 20 Hz to 8 kHz |
| Reference frequency, reference sound pressure level | Reference frequency: 1 kHz, reference sound level: 94.0 dB |
| Frequency weighting characteristics | A-weighting, C-weighting |
| Time weighting characteristics | F (Fast), S (Slow) |
| Level range | Wide range: 30 dB to 130 dB, peak range＊: 65 dB to 130 dB ＊Peak range is used for peak sound level measurements |
| RMS detection method | Digital processing |
| Processing | Digital sampling cycle: 30.3 μs (Lp, Leq, LE, Lmax, Lpeak) |
| Calibration | Calibration frequency: 1 kHz, Calibration sound level: 94 dB Japan Measurement Law: electrical calibration with internal signal source; JIS, IEC: acoustic calibration using NC-74 |
| Windscreen | Unit is compliant with JIS C 1509-1 class 2 and IEC 61672-1 class 2 with and without windscreen |
| Display (TN positive display, reflective) | Numeric display: 0.1 dB resolution Bar graph: Scale range 100 dB, 5 dB resolution (update frequency 0.1 s) Warning indicators: Over (Overload) appears at 137.4 dB (1 kHz) Under (Underload) appears from -0.6 dB of lower scale limit Battery capacity 3-stage indicator for remaining capacity |
| Store function (processing results saved in internal memory, using manual store) | Number of data: 199 Stored data can be checked on recall screen |
| DC output connector | DC output: 3 V (full scale), 25 mV/dB, output impedance: 50 Ω Load impedance: 10 kΩ or more |
| AC monitor output connector | AC output: 1 Vrms +600 -400 mVrms (at 110 dB), overload: +2 dB Output impedance: 600 Ω, load impedance: 10 kΩ or more, frequency weighting: Z-weighting |
| USB connector | For transfer of stored data to a computer, using optional USB adapter cable |
| Power requirements (size AAA [IEC R03] battery x 2 Normal temperature) | Current consumption: approx. 80 mA (3 V operation) Battery life: approx. 9 hours (with alkaline batteries), （Wide range）approx. 3 hours (with manganese batteries) |
| Temperature / humidity range for operation | -10 ℃ to +50 ℃, 10 % to 90 % RH (no condensation) |
| Dimensions, weight | Approx. 120 mm (H) × 63 (W) × 23.5 mm (D), approx. 105 g (including batteries) |
| Supplied accessories | Windscreen × 1, Windscreen fall prevention rubber× 1, Silicone cover × 1, strap × 1, AAA [IEC R03] alkaline battery × 2 |
