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Applicable standards |
Measurement function |
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General-Purpose Sound Level Meter according to Measurement Law
IEC 61672-1:2002 Class2
IEC 60651:1979 Type2
IEC 60804:2000 Type2
JIS C 1502:1990? |
Sound level Lp,maximum sound level Lmax,
equivalent continuous sound level Leq,sound exposure level LE |
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Measurement time: 10minutes, 1hour (stop at any time possible)
Measurement level range : A-weighting: 30 -137dB, C-weighting: 3 6-137dB
Inherent noise: A-weighting: max. 24dB, C-weighting: max. 30dB
Reference sound pressure level: 94dB
Reference frequency: 1,000Hz
Reference range: 130dB (no range selection necessary)
Frequency range: 20 - 8,000Hz
Frequency weighting characteristics: A and C
Time weighting characteristics: rms detection performed with digital processing |
Precessing: Sampling cycle 20.8㎲ ( Lmax, Leq, LE)
Acoustic Calibration: Using sound level calibrator NC-74
Microphone:1/2inch electret condenser microphone |
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Dynamic characteristics: Fast(F) and Slow(S) |
Model: UC-52
Sensitivity level: -33dB (0dB=1V/Pa) |
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Display: LCD |
Output: DC output |
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Numeric readout: Resolution 0.1dB, update frequency 1s
Bar graph display: Resolution 5dB, scale 100dB, update frequency 0.1s
Warning indicators:
“Over”(overload) when upper scale limit is exceeded by more than +7dB
“Under”(underload) when lower scale limit is exceeded by less than -0.5dB
Battery voltage: 3-stage indication of battery capacity |
Output voltage: 2.5V (at 130dB), 0.25V/10dB
Output impedance: Approx. 50ohms
Load impedance: 10k-ohms or more |
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Power requirements: IEC R6P (size AA) battery: X2 |
Ambient temperature range for operation: |
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Battery life:
Approx. 20hours continuous operation with LR6 batteries (at 25℃) Approx.
7hours continous operation with R6P batteries (at 25℃)
(Battery life is 20% shorter when DC output is used or during Cal On) |
-10 to +50℃, 10-90% RH(no condensation) |
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Dimensions, weight: |
Supplied accessories: |
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Approx. 227X78X31mm, approx. 240g(including batteries) |
Windscreen WS-10
IEC R6P (size AA) batteries (Manganese)
Miniature screwdriver
Carrying case
Hand strap |
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Optional accessories: |
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DC voltage output cable CC-26
Sound calibrator NC-74 |
