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Integrating Sound Level Meter - Class 1

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Specifications
KEY FEATURES

Applicable standard

IEC 61672-1 : 2013 Class 1

Microphone

1/2-inch backelectret-type

Preamplifier

MI-3111 Preamplifier for mocrophone

Linearity range

100 dB (Wide range), 80 dB (Normal range)

Measurable frequency range

10 Hz to 20 kHz(IEC, JIS)

Measurement level range

A : 27 to 135 dB(IEC, JIS)

Level range

20 to 90 dB, 30 to 90 dB, 40 to 100 dB, 50 to 110 dB, 60 to 120 dB (Normal range), 70 to 130 dB, 40 to 120 dB (Wide range)

Power requirement

Size AA battery 2 pcs. (manganese (6R) or alkaline (LR6) or oxyride (ZR6)) or PB-7090 AC adapter (option))

Battery life (continuous using)

Approx. 8 hours (LR6 alkaline battery in use / 23 C/ backlight off / not RS-232C?USB in use)

Operating (storage) temperature range

-10 to 50 C (-20 to 60 C)

Operating (storage) humidity range

25 to 90 %RH (10 to 90 %RH) with no condensations

Outer dimensions

Approx. 78(W) 263(H) 47(D) mm

Weight

Approx. 360 g (including batteries)

Accessories

Windscreen1 (f 70 mm), carrying case1, hand strap1, size AA battery 2 pcs. instruction manual(CD), simple,operation guide

Microphone can be separated from the main unit of sound level meter by connecting several exclusive coaxial cable(s).

Simple and easy data processing

time-weighted sound level

time-average sound level (equivalent continuous sound level)

sound exposure level

maximum time-weighted sound level

minimum time-weighted sound level

peak sound level

percentile sound pressure level

Product Description

Integrating Sound Level Meter - Class 1 Three models of sound level meter LA-1411/1441A(Class 2) and LA-4441A (Class 1) are applicable to IEC 61672-1:2013, JIS C 1509- 1:2017. The all models can perform simultaneous measurement of seven sound parameters including equivalent continuous sound level without adjusting the level range corresponding to the sound fluctuation and display the selected parameters.

The microphone is able to be used away from the main unit of sound level meter by using exclusive coaxial cable(s). Featuring curve-shaped body with minimum affects from sound reflection, easy-to-read and intuitive operating menu etc., our new sound level meters have greatly improved more than ever easier as ergonomically designed interface.

Moreover, LA-1441A/4441A sound level meters can transfer the measurement result to a PC with simple and quick operation via RS-232C or USB interface. The sound level meter can be controlled remotely from PC using software (user preparation).