EXTECH SL355 Personal Noise Dosimeter Datalogger

EXTECH SL355 Personal Noise Dosimeter Datalogger measues frequency weighted noise exposure and peak soundlevel simultaneously over an 8-hour period. It datalogs up to 12,000 readings when used as a sound level meter with sampling times between 1 second and 1 hour. In sound level mode, the meter displays sound level, time-averaged sound level peak, and sound level exposure.

Up to 20 dosimeter surveys are stored with start/stop time, %dose, %dose projected for an 8 hour period, and peak level when used in the dosimeter mode. The USB interface allows for connection to a PC using the software for setup and retrieval of stored events, or to analyze real-time measurements. Applications include personal accumulated noise exposure measurements, workplace noise assessment, and OSHA and other regulatory agency compliances.

Specifications :

Standards: IEC61252 ,ANSI S1.25(1992) for dose and sound exposure meters
IEC 60651-1979 Type 2 for sound level meters
ANSI S1.4-1983 Type S (1) for sound level meters
Ranges: 60 – 130 dB / 70 to 140dB (A/C weighting)
60 to 130dB / 93 to 133dB (C or Z (linear) peak)
70 to 140dB / 103 to 143dB (C or Z (linear) peak)
Digital display: LCD 0.01-9999%
Criterion level: 80, 84, 85, or 90dB
Exchange rate: 3, 4, 5 or 6 dB
Threshold level: 70 to 90 (1dB steps)
High level detector/peak flag: 115dB, 130dB and 140dB
Response rate: fast or slow
Measurement duration: 5, 10, 15, or 30 minutes
1, 2, 4, 8, 12, or 24 hours
Microphone: 1/2 inch electret condenser with 31” cable
Battery life: >35 hrs
Event storage: 20 surveys
USB interface: yes
Real time clock/calendar: yes
Dimensions/weight: 3.8 x 2 x 1.4” (97 x 51 x 35mm) 4.2oz. (120g) incl.batteries