Digital Sound Level Meter™

Digital Sound Level Meter™

Prevent worker-related hearing loss!

Each Digital Sound Level Meter comes complete with a removable windscreen, battery, and a protective case

What Is The Digital Sound Level Meter?

EXAIR’s Model 9104 Digital Sound Level Meter is an easy to use instrument that can measure and monitor the sound level pressure in a wide variety of industrial environments. The source of loud noises can be quickly identified and isolated so corrective measures can be taken to reduce or eliminate the problem. For compressed air noise, it is often as simple as replacing the existing inefficient blowoffs with EXAIR’s engineered compressed air products such as the Super Air Knife, Super Air Amplifier or Super Air Nozzles. In many cases, the EXAIR products can reduce noise levels by 10 dBA which is perceived as cutting the sound volume in half.

Hearing loss induced by high noise in the workplace is a common problem. Exposure to high noise levels for an extended period of time can lead to a permanent hearing loss for workers not wearing proper hearing protection. The Digital Sound Level Meter can help employers protect workers by monitoring noise levels so they don’t exceed the limits shown in OSHA Standard 29 CFR – 1910.95(a). Failure to comply can result in hefty fines.

Maximum Allowable Noise Exposure

WorkSafe Australia Maximum Allowable Noise Exposure
LAeq,8h = 85 dB(A)
Exposure Time	16* hrs	12* hrs	8 hrs	4 hrs	2 hrs	1 hr	30 min	15 min	7.5 min	3.8 min	1.9 min	57 sec	28.8 sec	14.4 sec	7.2 sec	3.6 sec	1.8 sec	0.9 sec
Sound Level dBA	80	82	85	88	91	94	97	100	103	106	109	112	115	118	121	124	127	130

* The adjustment factor for extended work shifts is taken into account.

OSHA Maximum Allowable Noise Exposure
Standard 29 CFR-1910.95(a)
Hours per day (constant noise)	8	7	4	3	2	1	0.5
Sound Level dBA	90	91	95	97	100	105	110

Accurate and responsive, the Digital Sound Level Meter measures the decibels of the sound and displays the reading on the large LCD display that has a backlight button for easier viewing. An “F/S” response time button provides a choice of slow response measurements for comparatively stable noise measurement or fast for varying noise. The “Max Hold” setting will measure the maximum noise level of sounds and updates continuously if a louder sound is detected. Certification of accuracy and calibration traceable to NIST (National Institute of Standards and Technology) is included.

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Advantages

Measures sound level range from 35dB – 130dB
(Low: 35 to 100; High: 65 to 130dB)
Frequency range 31.5Hz – 8kHz
A and C weightings (check compliance with safety
regulations and acoustic analysis)
Slow (1 sec) and fast (125ms) response settings to check peak and average noise levels
Maximum hold feature to measure peak sound levels
Accuracy is ± 1.5dB
NIST Certification included
Four-digit LCD display in 0.1dB steps with backlight
Battery life is 50 hours (typical) with low battery alert
Automatic power off after 15 minutes of non-use
Meets CE, ANSI, and IEC Type 2 SLM standards
Tripod mounting ideal for taking long-term measurements (tripod not included)
Removable windscreen for use in windy conditions to reduce misreads
Includes protective carrying case, 9V battery, instruction manual, and removable windscreen

The Sound Level Meter identifies a potential source of hearing loss.

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Models

Digital Sound Level Meter
Model	Description
9104	Digital Sound Level Meter includes hard-shell plastic case, removable wind screen and battery
9104CAL	Digital Sound Level Meter Calibration