Hellberg Local 446 Active Capsule Hearing Protection with Radio User Manual

Hellberg Local 446 Active Capsule Hearing Protection with Radio

Parts

Replace of battery pack

Fitting and adjustment

Change of hygiene kit

Approval & Technical data

85001-001 85002-001 Local HeadbandE1, Weight 513 gE4, EN 352-1:2020E3

Size: S M LE10

85101-001 85102-001 Local Helmet MountE2, Weight 547 gE4, EN 352-3:2020E3

Certification and Monitoring: PZT GmbH, Bismarckstrasse 264 B, 26389 Wilhelmshaven, Germany Notified Body: 1974E8, Notified by ZLS

Tested and certified to:

• PPE regulation (EU) 2016/425 and applicable parts of European standards:
• EN 352-1:2020 (Headband)
• EN 352-3:2020 (Helmet Mount)
• EN 352-4:2020 (Level Dependent)
• EN 352-6:2020 (Headset Profile max SPL is below 82dB(A))
• EN 352-8:2020 (Entertainment audio – Bluetooth®) max SPL is below 82dB(A)
• EN 352-4: Criterion level H= 112,7 dB, M= 110,5 dB, L= 97,1dB
• EN 352-6: Two-way radio
• Max. SPL 79,6 dB(A) at -14,7 dBVrms
• Usage time for max. input signal: 8,0 h

EN 352-6 : Bluetooth (Local 2) Max. SPL 77,2 dB(A) at -14 dBFS Usage time for max. input signal: 8,0 h

• EN 352-8 : Bluetooth (Local 2) Maximum sound level: 81,6 dB(A) at -10 dBFS
• Radio standard: PMR 446 MHz (EU)
• Channel separation: 12,5 kHz
• Modulation: FM
• Number of channels : 16
• Subchannel coding: CTCSS
• Number of Subchannels : 38
• Transmit power : 150/50/10 mW ERP
• Range : Max 3 km line of sight
• Receiver sensibility: Typical -120 dBm
• Bluetooth ®: 4.2, A2DP 1.3.1, HSP 1.2, HFP 1.7, AVRCP 1.6
• Power supply: Lithium Battery Pack
• Weight: 513 g Headband, 547 g Helmet Mount
• Battery operation time : 12 hours normal operation
• Battery standby time : 20 hours
• Battery charging time : Up to 5 hours
• Water and dust resistance : IP 56
• Approvals/Compliance : EN 352, RED, ROHS, REACH, WEEE
• Operating temperature: -20 to +55°C

Radio Equipment Directive (RED) 2014/53/EU (Europe)

• NEMKO Norway, Notified Body : 0471E8

English is the language examined by Notified Body. English has interpretive precedence.

Approved helmet combinations

Supplementary helmet list according to EN 352-3

• Certification and Monitoring: PZT GmbH, Bismarckstrasse 264 B, 26389 Wilhelmshaven, Germany
• Notified Body : 1974E8, Notified by ZLS

Radio Channels (MHz)E12

Subchannels CTCSS (Continuous Tone Coded Squelch System)(Hz) E13

WARNING!
This hearing protector is intended to protect the wearer from hazardous noise levels when fitted by this user’s instructions. Any other use is not intended and therefore not permitted. The instructions for use must be followed. Failure to do so could result in a drastic decrease of the noise attenuation and may lead to serious injury.

Read these user instructions carefully!

• The hearing protector must be worn at all times in noisy environments to provide full protection! Only 100% wear time provides full protection.
• Do not remove the headset to change settings in a noisy environment. Use a menu system with a guide voice while wearing the headset.
• The audibility of warning signals at a specific workplace may be impaired due to over-protection when using a hearing protector with too high a noise attenuation performance in the noise environment.
• When using hearing protection with entertainment audio features, remember to adjust the volume when working in noisy environments so that any warning signals etc. can be heard.
• In some individuals, excessive sound pressure from earphones and headphones may cause hearing loss.
• This hearing protector features the level-limiting of audio signals from the speakers to a maximum of 82 dB(A) at the ear.
• Do not use this product in a potentially explosive atmosphere.
• This product may be adversely affected by certain chemical substances. Further information should be sought from the manufacturer.
• The earmuff is provided with safety-related audio input. The user should check the correct operation before use. If distortion or failure is detected the user should refer to the manufacturer’s advice for maintenance.
• The hearing protector’s noise attenuating properties can dramatically decrease when used with, for example, thick eyeglass frames, ski masks/balaclavas, etc.
• Use of perspiration/hygienic protection over the sealing rings can reduce the hearing protector’s noise attenuation properties.
• Earmuffs, and in particular cushions, may deteriorate with use and should be examined at frequent intervals for cracking and leakage.
• Immediately discard the product if it shows any signs of cracking or damage.
• The earmuffs shall be regularly inspected for serviceability. The hygiene kit should be changed at least twice a year. Make sure you choose the correct hygiene kit for your hearing protector.
• Clean the product with mild soap. You must be sure that the detergent you use does not irritate the skin. Do not dip the product in water.
• The hearing protector must be stored in a dry, clean environment out of direct sunlight, e.g. in its original packaging.
• Ensure battery condition and state of charge to ensure capacity is sufficient throughout a critical task. Battery capacity may deteriorate over time.
• Ensure matching configuration by testing communication before commencing critical task.
• Note, on communication radio, only one unit can transmit at the same time. A unit can not receive a message while transmitting.
• Ensure that the used radio frequencies are license-free or obtain a license in the region you operate.

FITTING & ADJUSTMENT

Brush away all hair from your ears and place the earmuffs over your ears so they fit comfortably and snugly. Ensure your ears are completely enclosed by the earmuffs and that you have an even pressure around your ears. The earmuffs must be fitted, adjusted, and maintained per the manufacturer’s instructions.

Headband (pic. C1)
Adjust the headband size so that it rests lightly against the crown of your head.

Helmet mount (pic. C2, C3)
Push the hearing protectors’ helmet attachment into the helmet slot until it locks into position. Place the hearing protectors over your ears and press inwards until you hear a click. Adjust the hearing protectors and helmet so they
fit comfortably.

Boom microphone (pic. C4)
The boom microphone (A:6) should be placed approximately 1 cm from the mouth for best noise suppression and clear speech intelligibility. Make sure the microphone is facing the mouth, with the TALK text imprint towards the mouth. Attach the Windshield for use in windy environments.

USER INSTRUCTIONS FOR TWO WAY COMMUNICATION

Charge the headset before first use! See the Charging section of the user manual.

Operation
Power ON/OFF: Press and hold the on/off button (A14) for 4 seconds. To transmit on the configured channel, press and hold the PTT button (A16). If the VOX is activated just speak into the microphone. Press the LD button (A15) to turn the LD function ON/OFF.

Configuration

• Configuration can be done both by wearing the headset guided by a voice prompt or using the headset O-led screen.
  Warning! Never remove the hearing protection when exposed to noise.

• All navigation and configuration of settings are guided by and confirmed with voice messages.

• By default, the display shows a home screen with radio channel and sub-channel as well as function icons and a battery indicator.

• By default, the up and down buttons (A13 >) (A12 <) change the radio volume

• Press on/off to enter the menu

• Navigate through settings with up/down buttons

• Press on/off to enter edit mode of the selected setting

• Use up/down to change value

• Confirm and exit the setting with on/off

• The menu system returns to the home screen automatically after 10 seconds of inactivity, or manually with a long press on the on/off button

Menu items

• < Radio Volume> Set radio volume
• < Channel> Set the radio channel, <1–16> (might vary per region)
• < Sub Ch> Set the subchannel for selective squelch (if activated, only transmissions with a matching subchannel will be heard)
• < OFF, 1–38> View and pair new Bluetooth® phones with the device.
• < VOX> Set the VOX threshold. A lower threshold means a weaker mic signal activates transmission <OFF-1-2-3-4- MAX-1-2-3…>
• < Sidetone> Set the volume of your voice to be heard in the headset when transmitting, <OFF-1-2-3-4-MAX-1-2-3…>
• < Battery> Battery status guide voice

Bluetooth® Pairing

1. To pair first unit, press and hold the Bluetooth® button (A19) for 4 sec until it flashes blue.
2. Activate Bluetooth® on your phone (or other unit) and select “Local 2” in the list. (See the user instructions for your phone). If the phone requires a PIN code, enter four zeros (0000).
3. An audio signal with 2 tones is heard in the headset when the pairing is completed. The headset LED flashes blue and a headset display prompt confirms that a connection has been established. If pairing fails, switch off the headset and start the pairing process again.

The pairing link is automatically established with the phone the next time the headset is switched on. If you experience issues with pairing, clear the previous headset in your phone’s bluetooth menu and reset the previous paired device list in the headset. In menu .

Pairing with a second Bluetooth unit

1. Navigate to in the menu and select the pairing option.
2. Press and hold button (A13>) to enter pairing mode. An audio signal confirms pairing mode and the first paired unit is temporarily disconnected during paring with the second unit.
3. Start the Bluetooth® function on your second unit and search for and connect to “Local 2”. An audio signal confirm unit 2 is connected. The headset LED flashes blue and a headset display prompt confirms that a connection has been established. Connection with the first paired unit is reestablished The pairing link is automatically established with the last 2 connected phones the next time the headset is switched on.

Music streaming from a Bluetooth® unit

1. Switch on the headset (see earlier steps).
2. Start the music player on the phone (or other unit).
3. Play/Pause by short pressing on the Bluetooth button.
4. Adjust the volume by pressing the volume buttons UP/ DOWN (A12, A13).
5. Move to the next track by pressing and holding down the Volume UP button for 2 seconds.
6. Play the song from the beginning by pressing and holding down the Volume DOWN button for 2 seconds.
7. Move to the previous track by pressing and holding down the Volume DOWN button for 4 seconds.

Answer/End/Reject call

1. Answer a call by briefly pressing on the Bluetooth button.
2. End a call by briefly pressing the Bluetooth button.
3. To reject a call, press and hold down the Bluetooth button for 2 seconds.

Voice dial from headset via a connected phone
Check the user instructions for your phone to see if it supports voice dial.

1. Press and hold the Bluetooth button for 3 seconds and release. An audio signal confirms the function is activated.
2. Speak your voice dial command. Most phones that support voice-controlled dialing will send an acknowledgment signal when to speak your voice dial command.

Broken Bluetooth® link
If the Bluetooth® link is broken due to exceeding the range (more than 10 meters) the headset will say “bluetooth connection lost”. The headset will auto-connect when back within range.

Hellberg SafetyHub app (Local 2)
Download the app from the App Store or Google Play. Scan the QR codes on the back of the user manual.

Level-dependent “Active listening” function
Press the LD button (A15) to switch the level-dependant function ON. A voice message confirms the function and a symbol will show on the display home screen. The volume is adjustable in 5 levels (1, 2, 3, 4, MAX). Adjust the volume by pressing the LD button until you reach your desired volume level. The level will be indicated with a voice message and on the display. Press and hold the LD button to switch the Level-dependent function OFF. The headset remembers your last volume setting the next time you switch ON the headset or the level-dependant function. For use in windy environments, it is recommended to fit the two included windshields. Remove the peel-off film and fit the windshield perfectly centered over the Level Dependant microphones (A7). This hearing protector is provided with level-dependent attenuation. The wearer should check the correct operation before use. If distortion or failure is detected, the wearer should refer to the manufacturer’s advice for maintenance and charging of the battery. Warning! The output of the level-dependent circuit of this hearing protector may exceed the external sound level.

Volume adjustment
When a phone call is active or music streaming is activated the volume buttons will change the Bluetooth volume. Tones will indicate when volume min/max has been reached. When there is an incoming radio call, or no ongoing call or music streaming the volume buttons will change the radio volume will be adjusted with 6 different levels selectable (OFF, 1, 2, 3, 4, MAX). The Radio can be turned OFF by turning the volume down, pressing and holding the down button when on volume level 1. A radio-off notification will be heard with 10-minute intervals. To turn the radio ON increase the radio volume.

PTT (Push To Talk)
Press and hold the PTT button (A16) to transmit on the selected radio channel. Release the button to stop transmitting

Radio channel (frequency)
Se Table E:12 for available channels and frequencies. When two (or more) radios are configured on the same channel, they can communicate with each other.

Subchannel (selective squelch)
Using sub-channels enables multiple groups to use the same radio channel without disturbing each other. When activated, transmissions are coded with the sub channel and only received messages on the same sub channel
will be heard. A unit with a sub-channel turned OFF will hear transmissions from all sub-channel groups. Subchannel grouping is achieved by sending units overlaying a tone to the transmitted audio which receiving units can detect and open the selective squelch. See Table E:13 for available sub-channels and their tone frequencies.

VOX (Voice Operated Transmission)
When the VOX is activated, radio transmission is automatically started when the speech signal from the microphone is above a certain level (threshold). Double press the PTT button or use the menu to enable/disable the VOX and set the desired threshold (OFF, 1, 2, 3, 4, MAX). A lower threshold allows a weaker speech signal to activate transmission. A higher threshold might be needed when the background noise is higher to prevent false triggering of transmission. When enabled, a VOX symbol is shown on the display home screen. Also when VOX is enabled the PTT button can be used to manually control transmission. Note, for reliable VOX triggering and clear communication the microphone needs to be correctly rotated and approximately 1 cm from your mouth.

Sidetone
Playback of the transmitted audio in the headset (1, 2, 3, 4, MAX). Confirms that transmission has been triggered and helps the user to speak at normal levels.

Advanced menu
When the display is in its home screen, press and hold both the up and the down buttons to enter the advanced menu

• < TX allow> Sets when transmission is allowed, always, channel free, sub-channel match, sub-channel mismatch
• < TX power> Set the radio’s transmitting power, <LO, MED, HI>
• < Voice> Deactivate voice prompts for navigation and settings, <ON, OFF>
• < Version> Version and serial number
• < Squelch> Set the squelch threshold, <OFF, 1, 2, 3, 4, MAX>
• < Audio> Audio configuration. Switch the radio and bluetooth audio between left and right sides.
• < Reset> Reset settings to factory default. Confirm with up or down button.

Squelch (radio noise suppression)
Noise from the radio reception is blocked when the incoming signal is below the set squelch threshold (1, 2, 3, 4, MAX). A lower setting can increase the radio range but might open up for more noise.

TX allows (busy channel lockout)
TX allows configures when radio transmission is allowed from the headset. The setting affects transmissions triggered by the PTT button as well as the VOX functionality. Two descending tones are given as feedback when the transmission is prevented. TX allow can be configured in the following settings:

• Always: transmission is always allowed
• Channel free: transmission is allowed if the channel is free

TX power
Sets the power at which the headset transmits the radio signal (LO, MED, HI). Higher power can extend the range or improve reception for others in challenging environments. Lower power uses less battery when transmitting and extends operating time. TX power is automatically reduced from HI to MED if the battery status is running low.

Battery save function
The headset has a built-in battery save function that turns the headset off when not used. When no movement has been detected for 10 minutes the headset turns off, otherwise, it turns of after 2 hours of inactivity.

Low battery warning
When the battery power is decreasing and approximately 10% of operation remains, a voice prompt “battery low” will be heard in the headset. The batteries should then be charged as soon as possible. The headset will turn OFF when the batteries are drained.

Replacement of battery pack
Unscrew the thumbscrew (A18) that secures the battery pack (A17). Remove the battery pack from the earcup. Be careful and make sure the sealing gasket is in place around the edge of the battery pack compartment on the headset. Reinserts the battery pack making sure the bottom protruding part is inserted in its sleeve (B). Gently tighten the thumbscrew.

Replacement of AA batteries (Accessories)
Unscrew the thumbscrew (A18) that secures the battery pack (A17). Remove the battery pack from the earcup. Replace batteries, and take note of battery orientation. Only use included batteries or NiMh batteries with similar capacity.

Warning!
If other battery types than specified are used, a risk of explosion may occur. Dispose of used batteries according to local regulations.

Charging of batteries
Never connect a charger to the headset if disposable batteries are used. Charge rechargeable batteries before first use. For safety reasons, all headset functions are automatically switched OFF when charging. The battery pack/headset will charge when connected to a USB power supply. Only use a charger that is approved to local directives for electronic devices. Use the USB charge cable supplied with the headset. Check that the charging cable is correctly connected to the charging socket (A8). The batteries must be inserted before inserting the charge cable. Power supply specifications: Output DC 5V 1000 mA (Limited Power Source – LPS). When charging, the LED (A11) will flash green. When the batteries are fully charged, the LED changes to solid green. The  LED will flash green with high frequency if there is an error detected when charging. Disconnect the charger cable when the batteries are fully charged.

Important!
When using an AA battery pack only use NiMh re-chargeable batteries or with similar performance. Never use batteries with more than 1.5 volts. Never leave the battery pack/headset unattended when charging. Do not use the headset when the batteries are charging. Only use a power supply and cable as specified by the manufacturer. Only charge the batteries at room temperature (10-25°C, (50-77°F)). Do not disassemble, crush, or expose the batteries to extreme heat or fire. If storing the unit for a longer time remove the batteries from the battery pack. If these instructions are followed, the product is unlikely to present any hazards within the meaning of EN 60950-1.

Parts (pic. A)

• A1: Thermoplastic headband
• A2: Thermoplastic helmet attachment
• A3: Replaceable foam liner
• A4: Replaceable foam-filled plastic ear cushions
• A5: Replaceable foam-filled head cushion
• A6: Boom microphone
• A7: Level-dependent microphones
• A8: Charging socket
• A9: Socket for boom-microphone
• A10: Display
• A11: LED
• A12: Volume DOWN and decrease setting
• A13: Volume UP and increase setting
• A14: On/Off button
• A15: Level dependent button
• A16: PTT button
• A17: Battery pack
• A18: Battery pack thumb screw
• A19: Bluetooth® button

Accessories and spare parts

• Hygiene kit: 99403-001
• Sweat absorbers: 99900-001
• Windshield boom microphone: 16999-001
• USB charging cable Local: 39927-001
• Boom microphone: 16982-001
• Windshield level dependent microphones: 1059-001
• Spare headband electronic: 26046-915
• Spare helmet arm (pair): 26108-910
• Battery pack Li-Ion Local 446: 17018-001
• Battery pack Li-Ion Local 2 : 17018-011
• Battery pack AA Local 446: 17004-001
• Battery pack gasket : 17112-001
• Charger EU : 17193-001
• Charger UK: 17193-007

Change the hygiene kit (pic. D)

• Remove the old foam liner (A3) and insert the new
• Pull off the old ear cushion (A4)
• Centre the new ear cushion over the hole
• Press with a finger along the outside of the ear cushion until it attaches all around the edges
• Pull off the old head cushion (A5) and insert the new

Approval and technical data (E)

• E:1) Headband
• E:2) Helmet-mounted
• E:3) Tested and certified to (standards)
• E:4) Weight
• E:5) Mean attenuation
• E:6) Standard deviation
• E:7) Assumed Protection Value
• E:8) Tested by (notified body)
• E:9) Headband force
• E:10) Size: S M L
• E:11) Additional technical data
• E:12) Radio channel frequencies
• E:13) Subtone channel frequencies

Approved helmet combinations
These earmuffs attached to head protection and/or face protection devices shall be fitted to and used only with, the carriers(s) listed in table G.

• G:1) Manufacturer
• G:2) Model
• G:3) Adapter

Earmuffs complying with EN 352-3 are of medium range or small size range or large size range. Medium-size range earmuffs will fit the majority of wearers. Small-size range or large-size range earmuffs are designed to fit wearers for whom medium-sized range earmuffs are not suitable. Hereby, Hellberg Safety AB declares that the hearing protectors Local 446 and Local 2 comply with PPE regulation EU 2016/425 and the RED Directive 2014/53/EU. The full text of the EU Declaration of Conformity is available at: www.hellbergsafety.com /declaration-of-conformity For manufacturing date, see the date clock on the inside of the ear cup. The expected lifetime of a product, excluding batteries, is 5 years. The serial number is placed on a label on the bottom of the ear cup. This product is covered by the Waste Electrical and Electronic Equipment Directive (WEEE) 2012/19/EU. Do not dispose of your product as unsorted municipal waste. Batteries must be disposed of per national regulations. Use local recycling systems for electronic products.

References

• Declaration of Conformity – Hellberg Safety
• Declaration of Conformity – Hellberg Safety
• Hellberg Safety | Head Protection
• Declaration of Conformity – Hellberg Safety
• Declaration of Conformity – Hellberg Safety

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