Sound Level Meter LSDM-A11

Sound Level Meter LSDM-A11 is a universal sound level meter that measures the exponential time weighted sound level. It is small in size, light in weight and easy to carry unit. It has 1/2 inch electret condenser type microphone and 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 with 4 digit LCD display, function mark, time weighting, weighting icon and data memorized. Permits choice A, C, F weighting and Fast/Slow response times and interface use RS-232 data output to connect with PC.

Standards	IEC 651.2, ANSI 1.4.2
Parameters	Lp-Sound Level
Measured Leq	Equivalent Continuous A Sound Level
Measured Lmax	Maximum Sound Level
Measured LN	Percent of All Readings Over Alarm Value Set
Testing Range Lp	30 to 130 dB ( A Weighting ) 35 to 130 dB ( C Weighting ) 40 to 130 dB ( F Weighting )
Testing Range Leq	30 to 130 dB (10 Seconds, 1 Min, 5 Min, 10 Min, 15 Min, 30 Min, 1 Hour, 8 Hours, 24 Hours)
Testing Range LN	0 to 100 %
Resolution	0.1 dB
Accuracy	1 dB
Frequency	A /C / F (Flat)
Time Weighting	Fast (125 ms) / Slow (1 Second)
Microphone	1/2 Inch Electret Condenser Type
Memory	30 Groups with Measuring Conditions
Calibration	94 dB at 1k Hz (sinusoidal)
Frequency Range	20 to 12, 500Hz
Alarm Value Set	30 to 130 dB
Alarm Output	LED Optional Relay Contact (NC)
Indicator	Low Battery Indicator
Dimensions	236 × 63 × 26 mm
External DC	6V, DC, 100mA
Power Supply	4 × 1.5 V AAA Size (UM-4) Battery
Weight	170 g

Permits choice A, C, F weighting and ‘Fast’ / ‘Slow’ response times
4 measurement parameters used
Memorize 30 groups of measurements
Designed with 4 digit LCD display, function mark, time weighting and weighting icon
94 dB at 1k Hz (sinusoidal) Calibration
Use RS-232 data output to connect with PC

Sound Level Meter is used to test the sound level of environment, machinery, vehicle, ship and other noise also used for industrial environmental protection, construction, health care, teaching and research department.

Sound Level Meter LSDM-A11

Related to Sound Level Meter-Calibrator

Sound Level Calibrator LSDC-A10

Standards	ANSI S1.40 CLASS2, IEC942
Sound Pressure Level	94 dB 114 dB
Accuracy	0.3 dB
Frequency	1000 Hz

Accurate Sound Level Meter LSDM-A10

Microphone	Φ 12.7 mm (1/2) test condenser microphone
Frequency weighting	A, C, and Lin (Linear)
Range	25 dB to 130dB (A)
Range control	Manual, three gears, linear range > 60 dB