User's Manual

MCW-D 50 – Important Safety Instructions
31
english
Maintenance
• Only clean the equipment with a slightly damp or dry cloth. Never use solvents as these damage the surface.
Trouble shooting and servicing
• Do not open the equipment without authorisation. You could receive an electric shock. Leave all service work to authorised expert personnel.
• Refer all servicing to qualified service personnel.
Charger
• Use only the CD 12 charger or CA 2457 power supply unit to charge the rechargeable batteries integrated in the microphone units.
• Never remove the base foam section from the CD 12 charger. There are no parts that can be serviced in the interior of the charger.
• The charger has been designed for charging the rechargeable batteries in the MCW-D microphone stations. Only charge MCW-D
microphone stations and no other battery operated equipment. The batteries could explode and injure you or damage the equipment.
• If you use the charger with accessories which have not been developed for it, this could result in a fire, an electric shock or physical injury.
• Never try to repair the charger yourself. There is a risk of an electric shock or causing a fire.
• Never use the charger as a mains power supply unit for electrical equipment.
Microphone Units
Set up
• Conference microphone stations with metal casings are heavy, so always position them on a secure surface.
• To align the gooseneck microphone on the microphone station and to avoid twisting it too far and causing premature wear,
always grip the microphone by the bottom flexible section never by the microphone head or by the rigid tube. The
gooseneck must be bent no further than an angle of 90° maximum.
Risk of injury
• If the microphone stations have a gooseneck microphone take care that you do not injure yourself on this e.g. poke it into your eye.
• The charging contacts of the MCW-D microphone stations can cause damage to property, injuries or fire damage if they come into
contact with conductive material such as jewellery, keys or chains. This closes the circuit and can thus cause the material to heat up.
To avoid this sort of unwanted circuit, the charging contacts must be handled with caution. This applies particularly if the microphone
stations are transported in a bag or some other container together with metal objects.
Charging / rechargeable batteries
• When charging the microphone station in the charger, take care to ensure that you do not injure yourself when putting the station in or
taking it out.
• Only switch on the charger when you have inserted all microphone stations. Empty charging compartments should never be touched
during the charging process. You could receive an electric shock.
• Avoid letting the rechargeable batteries in the microphone station become too deeply discharged. The rechargeable batteries could be
damaged and the life of them could be reduced.
• If battery operated equipment is not used for a lengthy period (e.g. 1 year) the self-discharge of the battery could be accelerated. The
temperature for long-term storage should be between +10° C and +30° C.
• If the microphone stations are not used for several months, the rechargeable batteries in the microphone stations should be charged up
at least twice a year in order to avoid them running out and deterioration in the performance due to self discharge.
Volume
• If the participants of a meeting use a headphone with the MCW-D 50 microphone stations, please make sure that the
volume is not set too high via the MCW-D 50 Conference Software. Otherwise, the hearing of the participants could
permanently be damaged.
Safety Symbols
The label shown on the left is attached to back of the unit. The symbols on this label have the following meaning:
This symbol indicates that dangerous voltage constituting a risk of electric shock is present within this unit.
This symbol indicates that there are important operating and maintenance instructions in the literature accompanying this unit.