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• In Canada, users of hard hats combined with earmuffs must
refer to CSA Standard Z94.1 on industrial protective
headwear.
LABORATORY ATTENUATION
WARNING! 3M strongly recommends individual fit testing
of hearing protectors. If the NRR is used to estimate
typical workplace protection, 3M recommends that the
noise reduction value be reduced by 50% or in
accordance with applicable regulations.
Explanation of attenuation tables
ANSI S3.19-1974
A:1 Frequency (Hz)
A:2 Mean attenuation (dB)
A:3 Standard deviation (dB)
The level of noise entering a person's ear, when hearing
protector is worn as directed, is closely approximated by the
difference between the A-weighted environmental noise level
and the NRR.
Example
1. The environmental noise level as measured at the ear is 92
dBA.
2. The NRR is 23 decibels (dB).
3. The level of noise entering the ear is approximately equal
to 69 dB(A).
Headband MRX21A2WS6-NA
D:1 Headband (PVC, PA)
D:2 Headband wire (stainless steel)
D:3 Two-point fastener (POM)
D:4 Cushion (PVC foil and PUR foam)
D:5 Foam liner (PUR foam)
D:6 Cup (ABS)
D:7 Level-dependent microphone for ambient listening
(PUR foam)
D:8 Speech microphone (ABS, PA)
D:9 Antenna (PE, ABS, TPE)
D:10 Wind shield (foam)
D:11 Charger jack (stainless steel)
Helmet attachment/Hardhat
MRX21P3E2WS6-NA
D:12 Cup supporting arm (stainless steel)
FITTING INSTRUCTIONS
Headband
E:1 Slide out the cups and tilt the top of the shell out, as the
cable must be on the outside of the headband.
E:2 Adjust the height of the cups by sliding them up or down
while holding the headband in place.
E:3 The headband should be positioned across the top of the
head as shown and should support the weight of the headset.
Safety Helmets Attachment
E:4 Insert the hard hat attachment in the slot on the
hard hat and snap it into place E:5.
E:6 Ventilation mode: To switch the unit from work mode
to ventilation mode, pull outward on the ear cups until you
hear a click E:7.
E:8 Avoid placing the cups against the hard hat as this
prevents ventilation.
OPERATING INSTRUCTIONS
CHARGING AND REPLACING THE BATTERIES (fig. 1)
1. Detach the latch on the left cup with your fingers.
2. Open the cup.
3. Insert or replace the batteries. Make sure the polarity
corresponds to the markings.
4. Close the cup and lock the latch. Change the battery type
if you are switching from rechargeable to non rechargeable.
Long press (2 s) the Menu button [M] to access the
configuration menu, see "Configuring your headset".
CAUTION: Use only 3M™ PELTOR™ USB charger
FR09 and 3M™ PELTOR™ USB wall adapter FR08
with 3M™ PELTOR™ LR6NM rechargeable batteries
(or equivalent AA Ni-MH rechargeable batteries.)
CAUTION: The battery may not be charged if the
ambient temperature exceeds +113 °F (45 °C).
NOTE:
- Do not charge alkaline batteries as this may cause damage
to the headset.
- Only use AA non-rechargeable or Ni-MH rechargeable
battery.
- Do not mix old and new batteries. Do not mix alkaline,
standard, or rechargeable batteries. To properly dispose
of the battery, follow local solid waste disposal regulations.
OPERATION TIME
Approximate use time with new AA alkaline batteries and fully
charged LR6NM rechargeable batteries (2100mAh):
- FM radio and level-dependent: approx 58 hours
- Bluetooth
streaming and level-dependent: approx 78 hours
®
NOTE:
Depending on the environment, temperature, and battery,
the operation time may vary.
POWER ON/POWER OFF (fig. 2)
Long press (2 s) the Power button [
headset on or off.
A voice message will notify "Power on" or "Power off".
The first time the headset is powered on, it automatically
enters pairing mode.
NOTE: If no button has been pressed for 4 hours, the headset
will automatically be powered off. A voice message will notify
"Automatic power off".
EN
] to power the
2
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