Superfire EP7 Sonic Defenders Ultra User manual

HEARING PROTECTION
HEARING PROTECTION
EP7 Sonic Defenders® Ultra
Two Levels of Protection Against Two Types of Noise
Filtered EP7 Sonic Defenders
Ultra provide two levels of protection—
with their attached filter caps in or out—against two types of noise:
continuous noise (example: loud roar of an engine) and impulse noise
(example: gunshot). With the filter caps out of the noise-reducing
filters, loud potentially dangerous sounds (above 85dB) are lowered
while safe-level ambient sounds and conversations are allowed to
pass through and be heard. With the filter caps inserted, additional
hearing protection is afforded and ambient sounds and conversations
are blocked. FOR PROTECTION WITH THE ABILITY TO HEAR AMBIENT SOUNDS,
leave filter caps out, or pry out with your fingernail if already inserted. FOR MAXIMUM
PROTECTION OR SITUATIONS WHERE YOU DON’T WANT TO HEAR AMBIENT
SOUNDS, insert filter caps into filter holes and push in until snug.
NOISE ATTENUATION DATA
WARNING: Improper fit of this device will reduce its effectiveness in attenuating noise.
Follow instructions for proper fit. Failure to follow instructions could result in hearing loss
and/or injury. EP7 Sonic Defenders
Ultra fit most people; however, no hearing protection
fits everyone. If proper fit cannot be achieved following instructions, discontinue use. Do
not use in environments with extreme air pressure or where abrupt pressure changes
occur. Foam-tipped EP7s should NOT be worn for swimming. For swimming use, we
recommend polymer flange-stemmed Sonic Defenders models.
EP7 Sonic Defenders Ultra - FILTER CAPS OUT
NOISE REDUCTION RATING (NRR)
EP7 Sonic Defenders Ultra - FILTER CAPS IN
14
NRR
Test Frequencies (Hz)
Mean Attenuation (dB)
Standard Deviation (dB)
125
9.5
4.2
250
10.6
3.1
500
18.7
3.5
1000
26.9
3.6
2000
34.6
4.1
3150
34.3
2.6
4000
30.8
4.4
8000
41.1
2.9
6300
36.1
4.3
28
NRR
Test Frequencies (Hz)
Mean Attenuation (dB)
Standard Deviation (dB)
125
31.3
3.7
250
29.8
2.9
500
35.9
3.6
1000
36.3
3.6
2000
38.1
2.8
3150
40.1
4.2
4000
34.8
3.5
8000
41.3
4.4
6300
38.5
4.8
EP7 Sonic Defenders®Ultra
14
(when used as directed)
EP7 Sonic Defenders®Ultra
28
(when used as directed)
WITH FILTER CAPS OUT
WITH FILTER CAPS IN
Average Peak Impulse Level dB Reduction
Average Peak Impulse Level dB Reduction
132 dB Overall Average PIL
150 dB Overall Average PIL
168 dB Overall Average PIL
24.5
29.3
32.1
132 dB Overall Average PIL
150 dB Overall Average PIL
168 dB Overall Average PIL
41.8
45.3
44.9
NOISE REDUCTION (dB)
EP7 Impulse Noise Reduction—Filter Caps Out
ANSI S12.42-2010
45
40
35
30
25
20
15
10
5
0
132 150 168
IMPULSE NOISE LEVEL (dB)
Average Peak Impulse Level dB Reduction
Average Peak Impulse Level dB Reduction
132 dB Overall Average PIL
150 dB Overall Average PIL
168 dB Overall Average PIL
24.5
29.3
32.1
132 dB Overall Average PIL
150 dB Overall Average PIL
168 dB Overall Average PIL
41.8
45.3
44.9
ANSI S12.42-2010
NOISE REDUCTION (dB)
EP7 Impulse Noise Reduction—Filter Caps In
50
45
40
35
30
25
20
15
10
5
0
132 150 168
IMPULSE NOISE LEVEL (dB)

CONNECTING/DISCONNECTING LANYARD
CLEANING, STORAGE & PRODUCT LIFE
EP7 Sonic Defenders Ultra typically last up to 6+ months, depending on usage
and care. Clean earpieces with mild soap and water and allow to air dry. Clean
foam tips by wiping with a clean cloth and rinsing with water, then air dry.
Replace earplugs when they become stiff and hardened. Store in a cool, dry
place in the included container. Do not leave in direct sunlight. In extreme
storage temperatures, filters may separate from stems. If this occurs, filters
must be reinserted into stems before using.
NOTE: EP7s provide a reduced level of hearing protection with their noise-reducing filters removed.
RADIO COMMUNICATION SYSTEM USE
An EP7 earplug can also serve as an earpiece for compatible radio
communication systems by simply removing its noise-reducing filter (store in a
safe place for future use) and inserting the system’s elbow connector into the
hole previously occupied by the filter until snug.
18300 Mt. Baldy Circle •Fountain Valley, CA 92708, U.S.A •www.surefire.com/hearingprotection •800.828.8809
71-01-906 Rev.A
1. Roll Comply™Canal Tip of color-coded (red filter for right) EP7 into a thin,
round cylinder, being careful not to unscrew tip from stem.
2. Starting with the EarLock®retention ring of the right earplug oriented
slightly backward, rotate the earplug forward while inserting the foam
tip deep into the right ear canal. Fit the retention ring to the natural
contour of concha bowl surrounding the ear canal to lock the earplug in
place. Hold in place 15 - 30 seconds while foam tip fully expands in ear canal.
3. Check earplug’s seal by placing your fingertip over the outer hole of filter and
removing. Detection of a slight suction indicates a proper seal.
4. Repeat process with white-filtered earpiece for left ear.
5. Test by clapping, with filter caps out. If no noticeable decrease in volume,
reinsert and retest.
6. To block lower-level noise* in quiet environments, insert attached filter caps
into filter holes and push in until snug.
* Inserting filter caps negates noise-reducing filters’ abilities to let ambient sounds &
conversations pass safely through.
FITTING & TESTING
WARNING: If the instructions above are not adhered to, the protection afforded by
EP7 Sonic Defenders
Ultra will be severely impaired.
Remove twist tie and uncoil
lanyard. Insert lanyard ends into
small holes on the outside of EP7s,
located beneath the noise-reducing
filters, and push in until lanyard
ends snap in place. To remove, pull
gently on lanyard ends until they
disconnect from earplugs.
SUREFIRE NO-HASSLE PROMISE
We’ll do what it takes to keep your SureFire gear running smoothly.
SureFire warrants that if you—our customer—purchase one of our products, and
we determine that it is defective in material and/or workmanship, we will repair or
replace it for free or refund your money—no hassle! SureFire Hearing Protection
products are warranted for 90 days from the date of purchase. Our warranty does
not cover consumables, or normal wear-and-tear, or damage resulting from abuse,
alterations, unauthorized repairs, or use contrary to SureFire’s user manuals. For
complete warranty information, visit www.surefire.com/warranty.
REPLACING COMPLY™ CANAL TIPS
For optimal performance, the Comply™Canal Tips used on EP7s should be
replaced every 2 - 4 weeks or when soiled. Additional tips can be purchased
directly from SureFire. To replace Comply ™Canal Tips: 1. Unscrew old tips
and discard. 2. Wipe earplug stems clean with a clean, dry rag. 3. Screw on
new tips until fully seated and hand tight. DO NOT overtighten, as this may
damage the stems. ALWAYS replace both tips at the same time.