4
EN
When selecting accessories to respiratory personal protective
equipment, such as hard hat mounted hearing protection,
please consult the NIOSH approval label or consult 3M
Technical Service for approved configurations.
For more information about 3M™ Safety Helmets, visit
www.3M.com
D. Explanation of the electrical audio input level table
EN 352-6
D:1 Input signal level U (mV, RMS)
D:2 Mean sound pressure level (dB(A))
D:3 STD sound pressure (dB(A))
D:4 Input signal level for which the mean plus one standard
deviation equals 82 dB(A)
E. Factory programmed radio frequencies explanation
The North American WS™ LiteCom Pro III Headset (*NA
Models) comes factory programmed with the frequencies listed
in table E. However, the headset is fully programmable
between the frequency range of 403-470 MHz, using either
analog or DMR modulation. To change the programmed
frequencies, contact 3M Technical Service or an authorized
PELTOR dealer.
NOTE: The Federal Communications Commission (FCC)
requires the operators of the General Mobile Radio Service
(GMRS) frequencies to obtain a license prior to use (Title 47
CFR Part 90 and Part 95). If any other frequencies are
programmed into the headset, both the FCC and Industry
Canada (IC) require the operators to obtain a license prior to
use. Contact the FCC or IC for license application forms, filing
instructions, and frequency availability in your area of use.
COMPONENTS
Headband MT73H7A4D10EU, MT73H7A4D10NA
F:1 Headband (PVC, PA)
F:2 Headband wire (stainless steel)
F:3 Two-point fastener (POM)
F:4 Cushion (PVC foil and PUR foam)
F:5 Foam liner (PUR foam)
F:6 Cup (ABS)
F:7 Environmental microphone (PUR foam)
F:8 Speech microphone (ABS)
F:9 Antenna (PE, ABS, TPE)
F:10 Auxiliary port (brass)
F:11 Li-ion battery (PC, ABS)
F:13 On/Off/Mode button (silicone)
F:14 + button (silicone)
F:15 – button (silicone)
F:16 PTT button for built-in two-way radio (PBT)
F:17 Bluetooth
®
button (PBT)
Headband MT73H7F4D10EU-50, MT73H7F4D10NA-50
F:18 Headband (TPE)
F:19 Headband wire (stainless steel)
Helmet attachment/Hardhat MT73H7P3E4D10EU*,
MT73H7P3E4D10NA*
F:20 Cup supporting arm (stainless steel)
Neckband MT73H7B4D10EU*, MT73H7B4D10NA*
F:21 Neckband wire (stainless steel)
F:22 Neckband cover (PO)
FITTING INSTRUCTIONS
Headband
G:1 G:2 G:3
G:1 Slide out the cups and tilt the top of the cup out, as the
cable must be on the outside of the headband.
G:2 Adjust the height of the cups by sliding them up or down
while holding the headband in place.
G:3 The headband should be positioned across the top of your
head.
Neckband
G:4
G:5
G:6
G:4 Place the cups in position over the ears.
G:5 Keep the cups in position, place the head strap on top of
your head and lock it tight in position.
G:6 The head strap should be positioned across the top of
your head.
Helmet Attachment
G:7
G:8 G:9
G:10 G:11
G:7 Insert the helmet attachment in the slot on the helmet and
snap it into place (G:8).
G:9 Work mode. To switch the unit from ventilation mode to
work mode, press the headband wires inwards until you hear a
