Etymotic ER•200DW8 Personal Noise Dosimeter with Data Logging - Manual (Page 10)

10
Status Check
Power ON
· Press and release the power button one time .
The 12.5% green LED illuminates briefly.
· The previously measured noise dose is displayed
(flashing LED).
Device Status is Displayed
· Two Green LEDs
Battery is good; memory capacity is acceptable
· Two Green and one Yellow LED
Battery is low or memory capacity is low
· Two Red LEDs — 3 Possibilities
- Battery is dead
- Device memory is full
- Hardware failure
2 Green
Good
2 Green and
1 Yellow
Caution
2 Red
Warning