Extech SL355 Personal Noise Dosimeter/Datalogger

Item #:

EXT-SL355

Brand:

Extech

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Description

SL355 Personal Noise Dosimeter/Datalogger by Extech

Features

Perform OSHA and IEC Noise accumulation surveys
One user-defined measurement setup
Adjustable Criterion Level, Exchange Rate, and Threshold
Applications include Personal accumulated noise exposure measurement, Workplace noise assessment, OSHA and other regulatory agency compliances
Measures frequency weighted noise exposure and peak sound level simultaneously
Datalogs up to 12,000 readings when used as a sound level meter with sampling times between 1sec and 1hr
In sound level mode, meter displays sound level, time-averaged sound level (Leq), peak, and sound exposure level (SEL)
Optional 94/114dB calibrator to perform "before" and "after" calibration checks per ANSI standards
Stores up to 20 dosimeter surveys. Data includes Start/Stop Time, %Dose, %Dose projected for an 8 hour period, and peak level when used in the Dosimeter mode
USB interface with Windows® XP/Vista/7 compatible software to control setup and retrieve stored events or analyze real time measurements
Includes belt clip, clip-on 0.5" microphone with 2.6ft (0.8m) cable, 3 AAA batteries, mini screwdriver, software, USB cable, and carrying case

Specifications

Applicable Standards	IEC 61672-1:2005, IEC 61252:2000, ANSI S1.25 – for dose meter and sound exposure meters IEC 60651 – 1979 Type 2 for sound level meters IEC 60804 – 2000 Type 2 for integration sound level meters ANSI S1.4 – 1983 Type 2 for sound level meters ANSI S1.43 – 1997 for integrating sound level meters
Microphone	1/2-inch electret condenser microphone with 31-inch integral cable.
Display	Liquid Crystal Display
Measurement Ranges	Linearity and Indicator ranges at 4 KHz (IEC 60804): 60 – 130: 60 – 130dB (A and C); 70 – 140: 70 – 140dB (A and C) Peak Ranges: 'C' Frequency Weighted Peak or Linear (Z) Peak over the top 40dB of each range: 60 – 130db: 93 – 133dB Peak; 70 – 140db: 103 – 143dB Peak
Frequency Weighting	RMS Detector: 'A' or 'C'; Peak Detector: 'C' or 'Z' (flat or linear).
Response Time Weighting	Fast and Slow (RMS detector).
Exchange Rate (Q)	3, 4, 5 or 6 db
Stabilization Time	10 seconds after the meter is switched on.
Threshold and Criterion Levels	Threshold Level: 70 – 90dB in 1dB steps; Criterion Level: 80, 84, 85 or 90dB.
Overload Indication	0.1dB above the selected measurement range.
Under–Range Indication	1dB below the selected range.
High Level Detector	115dB
Clock	Real-time clock with calendar.
Memory	20 noise surveys can be stored.
Measurement Control	Measurement Duration may be set to 5, 10, 15, or 30 minutes or 1, 2, 4, 8, 10, 12, or 24 hours.
Timers	Up to 5 timers (automatic start and stop) can be set (maximum up to one month ahead of measurement time). Timer Controlled Start/Stop: Configured using PC software or meter keypad.
Logging	All measurement parameters values can be logged, if the Logging Period is ≥ 1 minute.
Logging Period (LP)	Seconds: 1, 2, 5, 10, 15, 20, or 30; Minutes: 1, 2, 5, 10, 15, 20, 30, or 60.
Logging Capacity	The meter can log 14400 total values spread over 20 memory locations (RUNS).
PC Interface method	USB interface (meter-to-PC cable included in kit)
Battery	Three (3) 1.5V 'AAA' batteries
Battery life	Typically > 35 hours at room temperature. The instrument will automatically stop measuring and store its data before the battery voltage falls below the cut-off value.
Battery Indicator	Battery voltage level is represented in 4 stages using a displayed battery symbol.
Battery Backup	3V lithium battery (CR1220)
Operating Temperature & Humidity	0 – 50°C (32 to 122°F); 10 - 90%RH
Storage Temperature & Humidity	-10 – 60°C (14 to 140°F); 10 - 75%RH
Dimensions	97(L) × 51(W) × 35(H) mm (3.9 x 2.0 x 1.4")
Weight	Approx. 120g (3.8 oz.) including batteries