Rion NL-42 Sound Level Meter (20 Hz - 8 kHz)

  • Manufacturer: RION
    Model: NL-42
    Origin: Japan
    Guarantee: 12 month
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Manufacture: Rion
Model: NL-42
Made in Japan
Warranty: 12 month


Applicable standards
+ IEC 61672-1: 2013 Class 2
+  ANSI S1.4-2014 Class 2
+ JIS C 1509-1:2005 Class 2
Measurement functions
+ Instantaneous sound pressure level: Lp
+ Equivalent continuous sound pressure level: Leq
+ Sound exposure level: Le
+ Maximum sound pressure level: Lmax
+ Minimum sound pressure level: Lmin
+ Percentile sound levels: Ln{0.1 to 99.9 %, 0.1-increment steps, max. 5 values)
Sensitivity level: -33 dB
Measurement range            
+ A-weighting: 25 dB to 138 dB
+ C-weighting: 33 dB to 138 dB
+ Z-weighting: 38 dB to 138 dB
+ C-weighting peak sound level: 55 dB to 141 dB
+ Z-weighting peak sound level: 60 dB to 141 dB
Inherent  noise        
+ A-weighting: 17 dB or less
+ C-weighting: 25 dB or less
+ Z-weighting: 30 dB or less
Frequency range:  10 Hz to 20 kHz
Frequency weighting    : A, C, G and Z
Time weighting: F (Fast) and S (Slow), I (Impulse) and 10 s
Sampling cycle: 20.8 /vs (Lp, Leq, Le, Lmax, L-min, L-peak : sampling frequency: 48 kHz) 100 ms (L/v)
Calibration: Electrical calibration performed according to IEC and JIS standards, usinc internally generated signals: acoustic calibration performed with the NC-74.
Lp sampling cycle: 100 ms, 200 ms, 1 s, Leq 1s
Leq sampling cycle: 10 s, 1, 5, 10, 15, 30 min, 1, 8, 24 h, and user selected time (up to 24 hours)
Measurement Time: Max. 1 000 h in Auto Lp storage mode, max. 100 000 addresses in Auto Z_eq storage mode(depends on the capacity of the SD card)*1
Sampling frequency: Select 48 kHz, 24 kHz or 12 kHz
Data length: Select 24 bit or 16 bit
- USB: Allows USB to be connected to a computer and recognized as a removable disk Allows USB to be controlled via communication commands
- RS-232C communication: Allows for RS-232C communication via use of a dedicated cable
- Dimensions, weight: Approx. 255 (H) x 76 (W) x 33 mm(D), approx. 400 g (with batteries)
- Supplied accessories: Storage case x 1, Windscreen WS-10x1, Windscreen fall prevention rubber x 1, Hand strap x 1, LR6 (AA) alkaline batteries x 4, SD card 512 MBx1


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