| Measurement functions |
Inherent noise |
Sound level Lp
Equivalent continuous sound level Leq
Sound exposure level LE
Maximum sound level Lmax
Minimum sound level Lmin
Percentile sound level LN(5selectable settings) |
A wighting: 20dB or less
C wighting: 27dB or less
FLAT: 32dB or less
Linearity range 100dB
Reference sound pressure level 94dB
Reference level range 30 to 120dB |
| Measurement time |
RMS detection Digtal processor |
10seconds, 1,5,10,15,30 minutes, 1,8,24 hours and manual
(Maximum 200hours) |
Time seighing : Fast, Slow
Sampling interval 30.3㎲(Leq, LE) 100ms(LN) |
| Measurement range |
MIcrophone |
A weighing: 25 to 138dB
C weighing: 33 to 138dB
FLAT: 38 to 138dB |
1/2-inch electrical condenser type
Model: UC-52
Preamplifier NH-21 |
| Level range selection |
Data store functions |
6 ranges in 1-0dB steps: 20 to 80dB, 20 to 90dB,
20 to 100dB, 20 to 110dB, 20 to 120dB, 20 to 130dB |
Data can be stored in the internal memory |
| Frequency range |
Calibration |
Overall characteristics including microphone:20 to 8000㎐
Electrical circuit characteristics(AC output):10 to 20000㎐
Electrical circuit characteristics(RMS): 10 to 14000㎐ |
Electrical calibration calibration with 1-kHz sine wave signal from built-in oscillator
Acoustic calibraion using sound calibrator |
| Frequency weighting |
Dimensions |
| A, C, FLAT |
Approx. 400g |
| Outputs |
Dimensions |
AC/DC output
I/O connector (Sound level meter control from and data ouput to a computer)
Data output to printer DPU-414/CP-11/CP-10 |
Approx. 206×76×33mm |
| Display |
Optional equipment |
Backlit LCD (128×64dots+121icons)
Display sceens
Numeric and bar graph indication of sound level
Processing results screen
Level-timi graph(real-time level recording wiht 20second horizontal axis)
Messages on menu screen can be changed into English, Germany or Spanish |
AC adapter: NC-34 series
AC adapter with CE mark:up0181165A(100 to 250V,50/60㎐)
BNC-to RCA cable: CC-24
Microphone extension cable: EC-04 series
Serial I/O cable: CC-92
Printer cable: CC-93
Printer: DPU-414
Sound calibrator: NC-74
Pistonphone: NC-72
Level recorder: LR-06/LR-07 |
| Supplied accessories |
|
Windsreen WS-10 1
Carring case NL-21-031 1
connector cover(mounted on unit) NL-21-005 1
Hand strap VM-63-017 1
Batteries IEC R6P 4 |
