Etymotic ER•200DW8 Personal Noise Dosimeter with Data Logging - Manual (Page 5)

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Getting Started
The ER-200DW8 Personal Noise Dosimeter is an inexpensive,
easy-to-use device that provides a good estimate of noise
dose and alerts the user to the risk of over exposure.
In cases of gunfire and other impulse noise, no conventional
dosimeter measures the risk accurately. More specialized
equipment is required to measure impulse noise.
The ER-200DW8 has three modes of operation:
· Status: displays the previously measured results, indicates
when batteries need to be replaced, and indicates when
the device memory is full.
· Normal: measures and displays noise dose continuously
for up to 7 days; provides an early warning for
over-exposure and the need for hearing protection.
· QuickCheck: measures noise for two minutes then
calculates and displays the estimated dose per hour.
QuickCheck provides a quick way to measure a specific
noise source to determine if permissible exposure levels
will be exceeded and hearing protection is needed (e.g.,
loud equipment, vehicles, power tools, concerts or sporting
events).
Package Contents
· ER-200DW8 Personal Noise Dosimeter
· USB Cable
· PC Interface Software CD
· Windscreen
· Batteries: Three AAAA Alkaline*
· User Guide
*AAAA batteries are available at electronics retailers
and at etymotic.com