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Personal Noise Dosimeters
Personal Noise Dosimeter
Interpreting Results
Interpreting Results — Normal Mode
LED
Dose %
Risk Factor
Hearing Protection Needed
green (slow flash)
< 25%
No risk of hearing loss
NO
green (fast flash)
25%
No risk of hearing loss
NO
green
50%
1/2 daily dose reached
NO
yellow
100%
Limit of permissible exposure
YES
red
200%
2x allowable daily dose
YES
Muffled hearing and ringing in the ears are likely after unprotected exposure.
red
400%
4x allowable daily dose
YES
red
1600%
16x allowable daily dose
YES
red
3200%
32x allowable daily dose
YES
Interpreting Results — Quick Check (2-minute test)
If the LED color is:
The estimated dose per hour is:
The estimated dose per 8 hours is:
green (slow flash)
< 25%
< 200%
green (fast flash)
25%
200%
green
50%
400%
yellow
100%
800%
red
200%
1600%
red
400%
3200%
red
1600%
red
3200%
Time to Reach 100% Dose
% Dose
Per Hour
% Dose
8 Hours
Time (hours) to Reach 100% Dose
Level (dBA)
No EP
ER-9
ER-15
ER-25
ER-20
85
<25 (12.5)
100
8
24
24
24
24
88
25
200
4
24
24
24
24
91
50
400
2
16
24
24
24
94
100
800
1
8
24
24
24
97
200
1600
30 min
4
16
24
24
100
400
3200
15 min
2
8
24
22 (est)
103
800
6400
7.5 min
1
4
24
14 (est)
106
1600
12,800
3.8 min
30 min
2
20 (est)
7 (est)
109
3200
25,600
1.9 min
15 min
1
10 (est)
3.5 (est)
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For $99 Each
Accessories
Technical Specifications
The Importance of Monitoring Noise Exposure
Instructions for Use
Interpreting Results
Warranty
ER200 Personal Noise Dosimeter - User Manual
» 336 KB
ER200 Personal Noise Dosimeter - User Manual (French)
» 136 KB
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