Standard compliance

General-Purpose Sound Level Meter according to Japan

Measurement Law JIS C 1509-1: 2005 Class 2, IEC 61672-1: 2002 Class 2

CE mark (EMC Directive 2004/108/EC), WEEE Directive

Measurement functions Processing functions

(normal mode)

Sound pressure level Lp, equivalent continuous sound pressure level Leq, sound exposure level LE, maximum sound pressure level Lmax, peak sound level LCpeak (only when peak range was selected)

Measurement time settings

1 min, 5 min, 10 min, 1 h

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

Measurement frequency range

20 Hz to 8 kHz

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)

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. 90 mA (3 V operation)

Battery life: approx. 7.5 hours (with alkaline batteries),

（Wide range）approx. 2.5 hours (with manganese batteries)

Temperature /humidity range for operation

-10 ℃ to +50 ℃, 10 % to 90 % RH (no condensation)

Dimensions

Approx. 120 mm (H) × 63 (W) × 23.5 mm (D)

Weight

Approx. 105 g (including batteries)