Mô tả sản phẩm: Máy đo mức tiếng ồn Rion NA-83
Standard compliance IEC 61672-1:2002 Class 1 , WEEE Directive
CE mark (EMC Directive 2004 / 108/ EC EN 61326:1997
+ A1 : 1998 + A2 : 2001 + A3 : 2003)
Measurement functions
Measurement items <Display data>
Time-weighted sound level Lp
Time-weighted maximum sound level Lmax
<Serial communication data>
Lp , Lmax , Lmin , Leq every 100 ms
Measurement range A characteristics : 28 dB to 138 dB
C characteristics : 36 dB to 138 dB
Z characteristics : 42 dB to 138 dB
Overall linear operation
range
(A characteristics , 1 kHz) 28 dB to 138 dB
Inherent noise level A characteristics : 20 dB or less
C characteristics : 28 dB or less
Z characteristics : 34 dB or less
frequency range 20 Hz to 20 kHz
Frequency weighting A , C , Z
Time weighting F (Fast) , S (Slow)
Linear operation range 110 dB
Bar graph indication range 30 dB to 130 dB
RMS detection circuit Digital processing (sampling cycle 20.8 µs)
Reference frequency 1 kHz
Windscreen compensation function Frequency response correction when All - Weather Windscreen WS-13 is mounted
Input / output connectors AC or DC output, selectable by key operation or remote command
Microphone 1 / 2 inch electrets condenser microphone
Power requirements
Rated power supply voltage 12 VDC
Operation voltage range 10 to 15 VDC
AC adapter RC45 - 12L
Current consumption Approx. 200 mA (at 12 V DC)
Environmental conditions for operation
Sound level meter unit -10°C to +50°C , max.90% RH
Microphone MS-11
(powered) -20°C to +50°C , max.100% RH (no condensation)
Microphone MS-11(storage) -10°C to +50°C , max.90% RH
