Aearo MT534720 User Manual

PowerCom plus II

FP3581

PowerCom plus II

ENG Instruction manual p. 1
FRA Mode d’emploi p. 12
ESP Instrucciones de uso p. 23

PELTOR PowerCom plus II HEADSETS, CSA CERTIFIED AND APPROVED BY FM
APPROVAL FOR USE IN HAZARDOUS LOCATIONS

MODELS:

MT53H7A4720 - Head Band Version
MT53H7B4720 - Neck Band Version
MT53H7P3E4720 – Version with attachment for use with hardhat

CSA AND FM LISTINGS:

• Certified by CSA as Intrinsically Safe for Use in Hazardous Locations Class I,
Div 1, Groups A, B, C and D; Class II, Groups G, Coal Dust; Class III

• Approved by Factory Mutual as Intrinsically Safe for Use in Hazardous Locations Class I,
Div 1, Groups A, B, C and D.

APPLICABLE STANDARDS:

• CAN/CSA Standard C22.2 No. 157 – 92

• CANADIAN ELECTRICAL CODE, Part I

• FM 3600 & FM 3610

• NATIONAL ELECTRICAL CODE (USA)

WARNING:

Substitution of components may impair intrinsic safety

Equipment with broken or otherwise damaged enclosure shall not be operated in the hazardous
locations.

Use only Peltor battery pack ACK05
or DURACELL MN1500, DURACELL PROCELL PC1500, ENERGIZER E91,
ENERGIZER INDUSTRIAL EN91 (1.5V disposable batteries).

Do not mix different manufacturers batteries or mix new with used batteries

Change batteries only in locations known to be non hazardous

1

Headset basics….

Refer to figure H.

1. (MT53H7A4720)

Wide padded headband – for over-the-head use

(MT53H7B4720) Neckband - for use under a hardhat
(MT53H7P3E4720) Slotted hardhat mount – snaps into slots of hardhats

2. Stainless steel headband wires – special bending processes ensure an even distribution of pressure

around the ears.

3. Guide arms – slide assembly for easy height adjustment.

4. Ear seals – foam with liquid bladder for all day comfort, built-in pressure-relief canals ensure low

pressure and effective sealing. See page 8 for replacements.

5. Antenna – flexible with fixed mount design and high reception quality

6. Audio jack - for external audio accessories including 2-way radios, cell phones, personal entertainment

devises, see page 9.

NOTICE / WARNING
NO external audio accessories may be connected into the Peltor PowerCom plus II MT53H7*4720,
if the area where it is used requires I.S. (Intrinsically Safe) -approved equipment.

7. Battery cover – requires 2 standard 1.5-volt AA alkaline batteries, optional rechargeable battery pack

available, see page 8.

8. Key pad - for easy changing of modes, settings and levels.

9. Lip microphone – quick positioning metal boom assembly with an electret noise canceling condenser,

see page 8 for replacements.

10. Cup microphones – amplify and reproduce in stereo inside the headset ambient noises and voices

allowing the user to be fully aware of surrounding environment.

See page 8 for foam replacements.

11. Headset Push-To-Talk (PTT) – will key up lip microphone and activate the radio inside headset to start

transmitting.

10

1

2

3

7

8

4

9

11

6

(H)

5

2

Getting Started…

BATTERIES

Open the battery cover (#7, Fig. H) and place two 1.5 Volt AA size batteries inside the compartment.
Ensure that the + and – poles of the batteries are in the correct positions (refer to figure inside the battery
cover). The headset is polarity protected in the event batteries are incorrectly inserted.
When the batteries get low in power, a voice message saying “low battery” will be heard inside the
headset. This message will be repeated in 2 minute intervals until the batteries are completely depleted,
at which point the headset will have a voice confirmation saying “battery empty” and will shut off.

Note(s):

1) Battery life span/operating time varies greatly depending on the type of batteries and how the headset
is used. For example, with an alkaline battery with at least 2000 mAh, the operating time in low­power mode is about 30 hours at 10 % transmission, 10 % reception and 80 % stand-by. In high­power mode, the operating time under the same conditions decreases by about 10 %. At 20 %
transmission, 20 % reception and 60% stand-by, the operating time is about 20 hours.

2) The headset has an automatic shut-off feature to save on batteries. It will turn itself off automatically
after 2 hours if one of the following keys is not activated in that timeframe: (0) (+) (-) (PTT/VOX).

ADJUSTING THE CUPS FOR FIT (Fig. J)

1. The cup guide arms (#3, fig H) slide up and down the metal wires.

2. For headband and neckband models, place the headset on your head, with one hand, hold the band
(#1, fig H) in place and with the other slowly move the cup up/down the wire arms until they are in
the comfortable and snug fit position.

3. For harthat mount position (fig. K) snap the headset helmet attachment into the slot of the helmet.
Place the hardhat with headsets in place on your head and refer to 2. above for cup placement
instructions.

(J)

(K)

(1)

The hardhat mounted headset can be used in two positions:
working position (1) and ventilation position (2).
When in use, the cups must be placed in working position. Press the headband wires inwards until

you hear a click on both sides. To ensure proper noise attenuation while in the working position do
not press against the lining or edge of the helmet.

Tip: At the end of the day, do not leave the headset in the upright position on top of the helmet, leave

it in the ventilation position allowing the foam on the inside of the cups to dry out.

(2)

3

Operating Instructions………

PowerCom plus II, operates with a simple 3 key touch pad configuration (#8 fig H) and

1 PTT button (#11 fig H).

1. On/Off/Mode Selection (O)

This button will turn the headset on or off by holding it down for more than 2 seconds. Once the
headset is turned on, it reverts to a mode menu selection button, see below for mode menu details.

Step-by-step mode menu selection

Simply press the (O) key and the headset will confirm via a voice message what mode menu has been
selected. Every time the (O) key is pressed it continues onto the next mode menu item followed by a voice
confirmation. Once in the mode of choice, refer to instructions below on the (+) and (-) keys.

Quick step mode menu selection

By pushing (0) key several times in a row, it will quickly scroll down the modes the equivalent number of
times the (0) was pushed, followed by a voice confirmation of the menu item selected.

The headset will revert back to Surround Volume Mode if the (0) or (+) (-) keys are not activated within 5
seconds while making selections. A beep will be heard in the headset indicating mode has automatically
reverted.

2. UP (+) Increases the steps within the mode selected, followed by a voice

confirmation of step selected.

3. DOWN (–) Decreases the steps within the mode selected, followed by a voice

confirmation of step selected.

4. PTT Located on the backside of the right ear cup. The thumb activated push-to-talk button

will key up the lip microphone and activate the radio inside the headset to start
transmitting.

Operating Details…

Turn the unit on by pressing the (O) key for more than 2 seconds and promptly let go, the headset will
emit a raising series of 3 tones confirming the headset is turned on. To turn the unit off, again hold
the (0) button for 2 seconds and promptly let go, the headset will emit a decending series of 3 tones
confirming the headset is off.

Once the headset is on and ready to be used, the (0) key becomes the mode menu selection button:

Mode Menu Selections

SURROUND
This mode adjusts the volume level of the cup microphones (#10 fig H). Pressing the (+) (-) keys while in
this mode will either increase or decrease the surrounding ambient noise level being reproduced inside
the headset. A voice message confirms each new setting as the (+) (-) keys are pressed. There are 5
volume levels and an off level. Off can be activated by scrolling down to level 1 then hold the (-) key down
for 1 second and release, a voice message confirmation will follow saying “surround off”. To reactivate
push the (+) key once and the mode will revert back to the level 1 surround volume setting.
VOLUME
This mode adjusts the headset radio incoming receive volume level. By pressing the (+) (-) keys while in
this mode the volume adjusts up and down accordingly. A voice message confirms each new setting as
the (+) (-) keys are pressed. There are 5 volume levels and an off level. Off can be activated by scrolling

4

down to level 1 then hold the (-) key down for 1 second and release, a voice message confirmation will
follow saying “volume off”. To reactivate push the (+) key once and the mode will revert back to the level
1 volume setting.

CHANNEL
This mode changes the main radio channel selections. By pressing the (+)(-) keys while in this mode the
channels scroll up and down accordingly. A voice message confirms each new channel number selected
as the (+) (-) keys are pressed. The number of channels available in this mode depends on the headset
configuration (see page 2). The channels are in a rolling configuration, that is, when the top channel has
been reached, pressing (+) again will revert back down to the first channel available, followed by a voice
confirmation.

VOX
This mode will adjust the voice activation (VOX) sensitivity. By pressing the (+)(-) keys while in this mode
the lip microphone is made more or less sensitive to activation via the user’s voice and/or surrounding
noise levels.

Tip(s):

1) Press (+) as the noise becomes louder (therefore making the microphone less sensitive to outside
noise) and viceversa as noise levels drop.

2) Setting 1 is for low noise applications. Setting 5 is for extreme noise applications. Try different
settings until the optimum setting is found.

3) Setting 1 requires minimal voice level to activate the microphone. Setting 5 requires maximum voice
level to activate the microphone.

4) Do not pause when talking during transmissions, VOX will turn off during pauses

5) Ensure lip microphone is no more than 1/4” away from the mouth.

A voice message will confirm each new setting as the (+)(-) keys are pressed. There are 5 VOX sensitivity
levels and an off position. Off can be activated by scrolling down to level 1 then hold the (-) key down for
1 second and release, a voice message confirmation will follow saying “vox off”. To reactivate push the
(+) key once and the mode will revert back to the level 1 vox setting. (i.e. the most sensitive microphone
setting). When in the off position, the headset radio transmit can only be operated via the PTT on the
right earcup (#11, Fig H), or remote finger ptt accessory, see page 13.

SQUELCH
This mode changes the antenna sensitivity level. By pressing the (+)(-) keys while in this mode it will
help filter out unwanted incoming RF noise between transmissions. A voice message confirms each new
setting as the (+)(-) keys are pressed.
Tip(s)

1) Normal mode is 1

2) Level 5 has most filtering

3) Level 1 has least amount of filtering

4) Off level has no filtering with squelch open

5) Try different levels in order to settle on the lowest possible setting for the specific application.

There are 5 squelch sensitivity levels and an off squelch position. Off can be activated by scrolling down to level
1 then hold the (-) key down for 1 second and release, a voice message confirmation will follow saying “squelch
off”. To reactivate push the (+) key once and the mode will revert back to the level 1 squelch setting.

SUB CHANNEL
This mode changes the privacy/sub-channel selections. By pressing the (+)(-) keys while in this mode the
channels scroll up and down accordingly. A voice message confirms each new channel number selected
as the (+) (-) keys are pressed. There are 38 analog CTSS tunes and 83 digital DCS codes. The channels
are in a rolling configuration, that is, when the top channel has been reached, pressing (+) again will
revert back down to the first channel available, followed by a voice confirmation.

5

Tip(s)

1) In order to communicate properly, all headsets in the group must be on the same main channel and
same sub-channel.

POWER
This mode allows the selection of three transmitting power levels. When (+) is pressed, a voice confirmation
will follow and the headset will adjust to a higher output power transmitting mode. When the (-) is pressed,
a voice confirmation will follow and the headset will adjust to a lower output power transmitting mode.

Tip(s)

1) This mode can be used as a battery conservation feature

2) Depending on distance transmitting, high power setting is not always required for good coverage.
Evaluate units in environment to be used for optimum setting.

3) The high setting will consume more battery power than the low setting.

LANGUAGE
This mode allows the selection of voice confirmations in the headset to be in one of three languages:
English, French or Spanish. By pressing the (+) (-) keys while in this mode the languages will scroll up
and down accordingly. A voice message will confirm language selected.

Notes:

1) The mode will revert back to Surround Volume Mode (in PowerCom plus II headsets) and Radio
Volume mode (in PowerCom and LiteCom headsets) if the (0) or (+) (-) keys are not activated
within 5 seconds while making selections. A beep will be heard in the headset indicating mode has
automatically reverted.

2) The headsets will also automatically shut-off if one of the following buttons (0) (+) (-) (PTT/VOX) is
not pressed within a span of 2 hours.

PUSH-TO-TALK (PTT) BUTTON FUNCTIONALITY

Located on the backside of the right ear cup, pressing this button keys up the lip microphone and enables
radio transmission manually. The radio will transmit, and the lip microphone will stay open as long as
the button is pressed.

VOX DISABLE FEATURE-Short cut

Double clicking the PTT button quickly will disable the vox feature, confirmed by a voice message
“VOX off” in the headset. To reactivate, double click the PTT button again and the vox will be enabled,
confirmed by a voice message “VOX on” in the headset.

Tip: Excellent feature to use if operator moves from low to high noise periodically during the work day.

MAINTENANCE

Clean the outside of the headset regularly with soap and warm water.
Note: Do not immerse in fluids.

If the headset is exposed to internal moisture, remove the hygiene kit and let the unit dry out.

6

Do not store the headset in temperatures exceeding +55°C, for example in on a car dashboard or behind

18.6

4.3

23.6

3.1

31.8

2.8

36.6

2.2

31.2

2.4

36.4

3.6

MT53H7A4720
PowerCom plus II

39.0

2.6

25

3150

6300

CSA

B

NNR

39.5

2.7

38.3

3.6

19.1

2.6

22.3

2.3

31.7

2.7

34.7

2.4

33.5

2.9

37.9

2.5

MT53H7B4720
PowerCom plus II

40.4

2.9

25

3150

6300

CSA

A

NNR

40.8

3.1

38.8

2.5

18.1

3.1

21.7

2.9

31.5

2.8

35.5

2.7

30.7

2.7

36.8

2.7

MT53H7P3E4720
PowerCom plus II

39.0

2.8

24

3150

6300

CSA

A

NNR

39.7

2.5

38.6

2.1

the windshield.

The ear seals deteriorate over time, inspect them regularly to ensure that there are no cracks. New earseals
ensure optimum comfort and proper noise attenuation. Refer to page 15 for ordering information.

Certain chemical substances may be harmful to this product. Contact the manufacturer for more
information.

When changing batteries, protect the electronics from being damaged by always turning off the unit
manually prior to replacing batteries. Refer to page 5 for proper battery replacement procedure.

Always wear, adjust, clean and maintain the headset according to these instructions. If not, noise
attenuation characteristics and other electronic functions may be compromised.

NRR

Improper fit of this device will reduce its effectiveness in attenuating noise. Consult this manual for
proper fitting instructions. For further information, please write Aearo Company, 8001 Woodland Drive,
Indianapolis, Indiana 46278. The level of noise entering a person´s ear, when a hearing protector is worn
as directed, is closely approximated by the difference between the A-weighted environmental niose level
and the NRR.

Attenuation

PowerCom plus II

FCC and IC License Information.

This Peltor PowerCom plus II transceiver operates on communications frequencies which are subject to
FCC (Federal Communications Commission) and IC (Industry Canada) Rules & Regulations.
These regulations require that all operators using Private Land Mobile radio frequencies obtain a radio
license prior to operating their equipment.

Programming of this transciever and the application for license must be made through a
Peltor authorized 2-way radio dealer.

7

SPARE PARTS

HY79 Hygiene kit

Consists of two snap-in ear cushions and foam pads. Replace at least twice a year
to ensure proper attenuation, hygiene and comfort. Sold as a pair, enough for one
headset replacement.

HY100A Ear seal comfort pad

A single-use sweat absorbing pad that is placed on the ear seals. Sold in packages
of 100 pair.

HYM1000 Lip microphone hygiene tape

Tape wraps around the lip microphone to protect against moisture and harsh
environmental conditions. Wind and water resistant, great for hygienic purposes
when headsets are shared. Sold in boxes of 5 metres, good for approximately 50
replacements.

M995 Lip microphone foam wind screen

Effective protection from wind noise, also protects against dirt and increases the life
span and of microphone element. One per package.

M60/2 Cup microphone foam windsock (#10, Fig H)

Applicable for PowerCom plus II only products. One pair per package.

1180 SV Battery cover

Replacement battery cover.

MT53-02 Boom microphone assembly

Replacement boom microphone with plug-in connector.

MT90-01 Throat microphone

Replacement boom microphone.

8

SPARE PARTS cont.

FL5602 External PTT

ACK 05 Rechargeable battery pack

Peltor AA rechargeable battery pack.

FR05 US

Charger specially made for ACK 05

Attention: Not to be used in areas known to be Hazardous.

Audio accessory jack (#6, Fig H) connections

NOTICE / WARNING
NO external audio accessories may be connected into the Peltor PowerCom plus II MT53H7*4720,
if the area where it is used requires I.S. (Intrinsically Safe) -approved equipment.

FL6CS Cell phone patch-cord

2.5 mm stereo contact plug assembly for use with cell phones.

FL6CT Listen-only patch-cord

3.5 mm stereo plug, wired in mono for use with personal entertainment devises.

FL6BT Listen-only patch-cord

3.5 mm mono plug, for use with 2-way radios and accessories with a

3.5 mm audio jack

FL6BS Listen-only patch-cord

2.5 mm mono plug, for use with 2-way radios and accessories with a

2.5 mm audio jack

FL6BR – External 2-way radio patch-cord

Cable assembly for adapting PC+ to an alternate 2-way radio.
Comes with Nexus TP-120 connector which mates with standard Peltor
FL50 radio PTT patchcords (sold separately). For a complete list of FL50
2-way radio accessory cables, please contact customer service.

NOTICE / WARNING

NOTICE / WARNING

NOTICE / WARNING

NOTICE / WARNING

NOTICE / WARNING

9

SUB-CHANNEL OPERATING FREQUENCIES

CTCSS (Continuous Tone Coded Squelch System)

15.

16.

110.9

114.8

22. 141.3

23. 146.2

1. 67.0

2. 71.9

88.5

8.

9. 91.5

29. 179.9

30. 186.2

36. 233.6

37. 241.8

3. 74.4

4. 77.0

5. 79.7

6. 82.5

7. 85.4

10. 94.8

97.4

11.

12. 100.0

13. 103.5

14.

107.2

DCS (Digitally Coded Squelch)

39. 023

40. 025

41. 026

42. 031

43. 032

44. 043

45. 047

46. 051

47. 054

53. 114

54. 115

55. 116

56. 125

57. 131

58. 132

59. 134

60. 143

61. 152

17. 118.8

123.0

18.

19. 127.3

20. 131.8

21.

136.5

67. 174

68. 205

69. 223

70. 226

71. 243

72. 244

73. 245

74. 251

75. 261

24. 151.4

25. 156.7

26. 162.2

27. 167.9

28.

81. 315

82. 331

83. 343

84. 346

85. 351

86. 364

87. 356

88. 371

89. 411

173.8

95. 445

96. 464

97. 465

98. 466

99. 503

100. 506

101. 516

102. 532

103. 546

31. 192.8

32. 203.5

33. 210.7

34. 218.1

35. 225.7

109. 631

110. 632

111. 654

112. 662

113. 664

114. 703

115. 712

116. 723

117. 731

38. 250.3

10

48. 065

49. 071

50. 072

51. 073

52. 074

62. 155

63. 156

64. 162

65. 165

66. 172

76. 263

77. 265

78. 271

79. 306

80. 311

90. 412

91. 413

92. 423

93. 431

94. 432

104. 565

105. 606

106. 612

107. 624

108. 627

118. 732

119. 734

120. 743

121. 754