Compact, lightweight meter with USB interface

The SL355 Noise Dosimeter is designed to test noise exposure and provide noise surveys for compliance with OSHA, MSHA, DOD, ACGIH, and ISO standards. The SL355 monitors accumulated noise exposure and measures frequency weighted noise exposure and peak sound level simultaneously for % dose and TWA (time weighted average or sound exposure in Pa2 h).

Up to twenty (20) noise surveys can be recorded and up to five (5) automated dose tests can be programmed up to 30 days in advance. Each test includes a ‘repeat’ feature where tests can be rerun a pre-programmed number of times. Criterion Level, Threshold, Exchange rate and other parameters are user-programmable. Noise Survey results can be viewed on the meter’s display and downloaded using the supplied PC software.

The SL355 Sound Level Meter (SLM) displays real-time sound pressure level (SPL) readings along with LEQ, SEL, and elapsed time as a typical type 2 SLM would. The SLM has selectable measurement ranges: 60 to 130 & 70 to 140dB, ‘A’ and ‘C’ frequency weightings, Linear ‘Z’, and ‘C’ Peak weightings, Fast & Slow response time settings, and an adjustable energy exchange rate (Q).

The SL355 Datalogger has a built-in real-time clock for date/time stamped data records. The datalogger can store up to 14,400 readings in the meter’s memory. Sampling time (rate) is programmable from 1 second per reading up to 1 hour per reading. Logged readings are downloaded using the supplied PC software.

This device has been calibrated and tested before shipment. With proper care, years of reliable service can be expected.