UNITE – Safety
5
disconnect it from the mains and have it checked and
repaired.
• Do not hold the mains cable with wet hands. There
must be no water or dust on the contact pins. In both
cases you could receive an electric shock.
• The mains cable must be firmly connected. If it is
loose there is a fire hazard.
• Always pull out the mains cable from the mains
and/or from the equipment by the plug – never by the
cable. The cable could be damaged and cause an
electric shock or fire.
• Do not use the equipment if the mains plug is
damaged.
• If you connect defective or unsuitable accessories,
the equipment could be damaged. Only use
connection cables available from or recommended
by beyerdynamic.
Switching off
• When switching off the device, also disconnect the
power plug from the power socket. Make sure that
you do not pull on the cable, but on the power plug.
Ventilation
• Do not insert objects into the ventilation grilles or
other openings. You could damage the equipment
and/or injure yourself.
Disconnect
• For pluggable equipment, the socket-outlet shall be
near the equipment and shall be easily accessible.
Maintenance
• Only clean the equipment with a slightly damp or dry
cloth. Never use solvents as these damage the
surface.
Trouble shooting and servicing
• Never open the device yourself.
• Leave all service work to authorised expert personnel.
Charging
• A completely new battery may need to be charged and
discharged several times before it has reached its full
change capacity.
• Do not throw used batteries in the household waste, but
hand them over to the local collection points.
• High ambient temperatures during charging (> +40 °C)
affect the efficiency of the charging process and the life-
time of the rechargeable battery.
1.2
Transmitters / receivers
General
• Protect the transmitter/receiver from moisture and
sudden impacts. You could either injure yourself or
others or damage the transmitter/receiver.
Trouble shooting and servicing
• Never open the device yourself.
• Leave all service work to authorised expert personnel.
Maintenance
• Only clean the equipment with a slightly damp or dry
cloth. Never use solvents as these damage the
surface..
Rechargeable battery
• The transmitter/receiver is operated with the following
battery type: BAT-3707, lithium-ion, 3.7 V, 1.88 Ah,
6.96 Wh (order no. 727.679)
• Use only a USB 2.0/3.0 compliant 5V power supply to
charge the battery pack via the integrated USB
type-C port (power consumption is max. 500 mA).
• High temperatures, particularly in association with a
high charging status, result in irreversible damage of
the battery pack.
• If you are not intending to use the battery for an
extended period or are planning to put it into storage,
it is advisable to lower the battery’s charging level to
around 50% and to store it at temperatures of maxi-
mum 30 °C.
• In order to ensure safe transport by land, sea and air,
the battery pack used for the bodypack transmitter is
tested according to the UN 38.3 transport regulation
for lithium-ion batteries.
• Misuse or improper use could damage the battery
pack. In extreme cases, there is a risk of explosion,
heat, fire, smoke or gas.
• Never expose the battery pack to excessive heat such
as sunshine, fire or the like.
• Do not expose the battery pack to mechanical shock.
• Charge the battery pack before initial use.
• Use the specified chargers for charging the battery
pack.
• Avoid complete draining of the battery. This could
damage the battery and shorten its service life.
• If you do not use the transmitter for several months,
the batteries should be charged at least twice a year
to prevent deterioration in performance due to self-
discharge.
• Clean the charging contacts of the transmitter with a
clean dry cloth, if they become dirty.
• Do not short-circuit the battery.
• The charging contacts could cause property damage,
injuries or fire damage if they come into contact with
conductive materials such as jewellery, keys or chains.
This can lead to a closed electric circuit and, therefore,
to the material overheating. To avoid this kind of
unintentional electric circuit, the charging contacts
must be handled with care. This is especially important
if the transmitter is transported in a bag or another
container containing other metallic objects.
Moisture / heat sources
• Keep the battery pack clean and dry. Never expose
the device to rain or high humidity. Do not install it in
the immediate vicinity of swimming pools, shower
facilities, damp basements or other areas with
unusually high air humidity.
• Never place objects filled with water (e.g. vases or
drinking glasses) on the device. Liquids in the devices
may cause a short circuit.
• Never install or operate the device in the immediate
vicinity of radiators, lighting systems or other heat-
generating devices.
Unite TH handheld transmitter
• Do not blow into the microphone. In a condenser
microphone this could damage the transformer. It is
preferable to carry out a speech trial.
Unite TP bodypack transmitter
• Clip-on microphones are often very compact. If they
are accidentally swallowed there is a risk of choking.
Always keep this type of microphone away from small
children.
