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Sound Level Calibrator

DB Sound Tester Digital Noise Level Meter

DB Sound Tester Digital Noise Level Meter

Widely used to test the sound level of environment, machinery, vehicle, ship and other noise. For industrial environmental protection, construction, health care, teaching and research department.
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Product Application:


Widely used to test the sound level of environment, machinery, vehicle, ship and other noise. For industrial environmental protection, construction, health care, teaching and research department.

 

Features:


Offers 4 measurement parameters: Lp (sound level); Leq (Equivalent Continuous A Sound Level ); Lmax ( Maximum Sound Level) and LN (Percent of all readings over alarm value set ).
Permits choice A / C / F weighting and Fast / Slow response times; Can memorize 30 groups of measurement results and measuring conditions.
Use USB data output and RS-232 data output to connect with PC; Provide Bluetooth TM data output choice.



Standards

IEC 651.2, ANSI 1.4.2

Parameters Measured

Lp - Sound Level

Leq - Equivalent Continuous A Sound Level

Lmax - Maximum Sound Level

LN - Percent of All Readings Over Alarm Value Set

Main performance parameters

Main performance parameters

Travel speed (max. & min.)

Max. Gradeability

Measurement 

Range

 Lp

30 ~ 130 dB ( A Weighting )

35 ~ 130 dB ( B Weighting )

40 ~ 130 dB ( F Weighting )

 Leq

30 ~ 130 dB( 10 Seconds, 1 Min, 5 Min, 10 Min, 15 Min, 30 Min, 1 Hour, 8 Hours,  24 Hours )

LN

0 ~ 100 %

Resolution

0.1 dB

 Accuracy

1 dB

Frequency Weighting

 “A” / “C” / “F”(Flat)

 Time Weighting

Fast (125 ms) / Slow (1 Second)

Microphone

1/2 Inch Electret Condenser Type

Memory

 Maximum Value ( 30 Groups)

Built in Calibration Signal

94 dB at 1k Hz (sinusoidal)

Frequency Range

20 ~ 12,500 Hz

Alarm Value Set

30 ~ 130 dB

Alarm Output

LED Optional Relay Contact (NC)

 Indicator

 Low Battery Indicator

Power Supply

 4 x 1.5v AAA size (UM-4) Battery

External DC Power Supply

 6 V,DC,100 mA

Dimensions

236 × 63 × 26 mm

Weight

170 g

Package:

1* Main Unit

1* Windscreen
1* Carrying Case
1* Operation Manua


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