English Datasheet

SL400 Personal
Noise Dosimeter
For employees that are exposed to loud noise, sound level monitoring is essential to determine
what protective measures are required. Perform OSHA and IEC Noise accumulation surveys to
determine total sound exposure over an 8-hour period. The SL400 is a compact, lightweight
Dosimeter with USB interface designed to test noise exposure and provide noise surveys for
compliance with OSHA, MSHA, DOD, ACGIH, and ISO standards. Includes PC software to control
setup and retrieve stored events or analyze real-time measurements.
- Personal accumulated noise exposure measurement
- Workplace noise assessment
- OSHA and other regulatory agency compliances
Measures frequency weighted noise exposure and
One user-defined measurement setup
peak (C, Z) sound level
Optional 94dB calibrator to perform “before” and “after”
calibration checks per ANSI standards
Datalogs up to 999,999 readings when used as
a sound level meter with sampling times between
software to control setup and retrieve stored events or
1 second and 24 hours
analyze real-time measurements
Sound level mode: displays sound level, min/max,
time-averaged sound level (Leq), peak, and sound
USB interface with Windows® 7 and 8 compatible
Complete with belt clip, clip-on 0.5" (12.7mm)
exposure level (SEL)
microphone with 32" (81.3cm) cable and windscreen,
Adjustable Criterion Level, Exchange Rate, & Threshold
9V battery, software, USB cable, and carrying case
IEC61252-1993, IEC67672-1-2003, ANSI S1.25-1992, ANSI S1.4-1983, ANSI S1.43-1997
Ranges (Accuracy)
30 to 90 dB, 50 to 110dB; C, Z Peak: 70 to 140dB / C and Z Peak: 90 to 143dB (Accuracy: ±1.4dB@94dB 1kHz)
Frequency Weighting
A, C, Z
Response Rate
Fast, Slow, Impulse
20Hz to 8kHz
Dose: 10,000 points/SLM: 999,999 points
Criterion Level / Threshold Level
30 to 140dB in 0.1dB steps / 30 to 140dB in 0.1dB steps
Exchange Rate
3, 4, 5 or 6 dB
Measurement Duration
5, 10, 15, or 30 minutes; 1, 2, 4, 8, 10, 12, or 24 hours
Measurement Modes
%Dose, Lxmax, Lxyp, Lxmin, Lxeq, SEL (LAE), PeakMAX, LAVG, TWA, LEP, LN%
SPL, Lxmax, Lxyp, Lxmin, Lxeq, SEL (LAE) PeakMAX
4.2 x 2.6 x 1.3” (107 x 65 x 33mm) - exclude connector on top/ 7oz. (198g) include batteries and microphone cable
SL400 N *.......... Personal Noise Dosimeter
N* Indicates product available with optional Limited NIST for Certificate of Traceability to A and C Weighting . Order with -NISTL after part number for product plus
Calibration Certificate.
Specifications subject to change without notice. Copyright © 2015 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form.
Rev. 4/22/15
UPC Code: 793950474006