Sd-200 Overview; Figure 1-1: Sd-200 Overview - 3M SD-200 Mode D'emploi

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SD-200 Overview

SD-200 Overview
The SD-200 is intended to provide measurements of sound pressure levels in air.
With five easy-to-use keys, the keypad is used for powering on/off, viewing and/or
running measurements, navigating, and setting parameters. (See Table 1-2 for
more information.)
Note: for typical sound measurements when determining hearing protection,

the SD-200 may be set to "A weighting" with "Slow" response.
A/C frequency
weighting key
Press to select
A or C frequency
weighting
Run & Stop key
Runs and stops
integrating
measurements over the
Run-Time

Figure 1-1: SD-200 overview

Microphone with an attached windscreen
LEDs
Used in the LED alert
Display
View measurements and screen indicators
Screen indicators
The screen indicators identify
settings and values
Fast/Slow time response key
Press to select fast or slow
time response
Mode key
Cycles through the measurements
and Run-Time
On/Off key
Powers the SD-200 On/Off
measurement screen
screens