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EN
4.3.3. COMPATIBLE INDUSTRIAL SAFETY HARD HATS
E:A
Hard hat attachment with foam cushion
E:B
Hard hat attachment with gel cushion
E:1
Hard hat manufacturer
E:2
Hard hat model
E:3
Hard hat attachment
E:4
Head size: S = small, M = medium, L = large
For Europe, Australia and New Zealand
These earmuffs should be fitted to, and used only with, the
industrial safety hard hats listed in Table E:A and E:B. These
earmuffs are tested in combination with the following
industrial safety hard hats, and may give different levels of
protection if fitted to different hard hats.
For North America
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 Services for approved configurations.
5. OVERVIEW
5.1. HEADBAND (FIG. 1)
Article Numbers:
HT52A-112 (Listen only)
MT74H52A-110 (Microphone)
MT74H52A-111 (Microphone and PTT button)
1:A
Cable (PE, TPE)
1:B
Cup supporting arm (stainless steel)
1:C
Two-point fastener (POM)
1:D
Part number
1:E
Speech microphone (ABS, PA)
1:F
Adjustable screw
1:G Cushion (PVC foil and PUR foam)
1:H
Foam liner (PUR foam)
1:J
Ear cup (ABS, (2K molding))
1:K
PTT button
1:L
Headband
1:M Cable jack (nickel plated brass)
5.2. HARD HAT ATTACHMENT (FIG. 2)
Article Numbers:
HT52P3E-112 (Listen only)
MT74H52P3E-110 (Microphone)
MT74H52P3E-111 (Microphone and PTT button)
2:A
Two-point fastener (POM)
2:B
Part number
2:C
Speech microphone (ABS, PA)
2:D
Adjustable screw
2:E
Cushion (PVC foil and PUR foam)
2:F
Foam liner (PUR foam)
2:G Cable jack (nickel plated brass)
2:H
Ear cup (ABS, (2K molding))
2:J
PTT button
2:K
Cup supporting arm (stainless steel)
2:L
Back plate
2:M Hard hat attachment
2:N
Cable (PE, TPE)
4
5.3. NECKBAND (FIG. 3)
Article Numbers:
HT52B-112 (Listen only)
MT74H52B-110 (Microphone)
MT74H52B-111 (Microphone and PTT button)
3:A
Ear cup (ABS, (2K molding))
3:B
Part number
3:C
Speech microphone (ABS, PA)
3:D
Adjustable screw
3:E
Foam liner (PUR foam)
3:F
Cushion (PVC foil and PUR foam)
3:G Head straps (Velcro)
3:H
Cable (PE, TPE)
3:J
PTT button
3:K
Cup supporting arm (stainless steel)
3:L
Cable jack (nickel plated brass)
6. EXPLANATION OF SYMBOLS
4:A
Environmental mark. This product contains electrical
and electronic components and must not be disposed of
using standard refuse collection. Please consult local
directives for disposal of electrical and electronic equipment.
4:B
Recycling symbol. Recycle this product at a recycling
station for electrical and electronic equipment.
NOTE: Other symbols/decals may occur on the product due
to certification requirements for some commercial areas.
7. TO FIT THE HEADSET
Inspect the hearing protector before each use. If damaged,
select an undamaged hearing protector or avoid the noisy
environment.
7.1. HEADBAND
7.1.1. TO PUT THE HEADSET IN OPERATING POSITION
1. Tilt the top of the ear cups outwards. (Fig. 5:A)
NOTE: Make sure that the cable is on the outside of the
headband. (Fig. 5:K)
2. Put the earmuffs in position over your ears. (Fig. 5:U)
NOTE: Make sure that the headband is in position across the
top of your head. (Fig. 5:U)
7.1.2 TO ADJUST THE HEIGHT OF THE EAR CUPS
• Hold the ear cup and push the cup supporting arms up or
down. (Fig. 5:B)
7.2. HARD HAT
7.2.1. TO FIT THE HEADSET TO A HARD HAT
ATTACHMENT
1. Hold the earmuff and push the back plate, until the earmuff
locks into position. (Fig. 5:C)
2. Rotate the back plate to upright position. (Fig. 5:D)
3. Put the back plate into the slot on the hard hat. (Fig. 5:E)
4. Push the back plate until it locks into position.
5. Rotate earmuff to set the headset to operating position.
(Fig. 5:F)
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