Sennheiser SK 50 - 04-05 Specifications download pdf (Page 33)

Preparing for use

Inserting and changing the battery

For powering the transmitter, two 1.5 V AA size batteries are

required.

 Press the two unlocking buttons  and open the battery compartment

cover .



Insert the two batteries as shown above. Please observe correct

polarity when inserting the batteries.

 Close the battery compartment. The battery compartment cover

 locks into place with an audible click.

Inserting and charging the accupack

The transmitter can also be powered via the rechargeable

Sennheiser BA 2015 accupack. Insert the rechargeable battery into

the battery compartment as described above.

The transmitter has two charging contacts  and a sensing contact

on its short sides. The rechargeable battery can be recharged while

remaining in the transmitter. Insert the transmitter into the L 2015

charger (see ”Charging the rechargeable battery BA 2015“ on

page 24).

Note:

For rechargeable battery operation of the transmitter, only use

the BA 2015 rechargeable battery in order to ensure optimum

operational reliability. For charging the accupack, only use the

L 2015 charger. Both the rechargeable battery and the charger

are available as accessories.

The rechargeable battery is fitted with an integrated sensor

which is – via a third contact – monitored by the electronics of

the transmitter and the charger. The sensor is necessary for the

following control purposes:

y The taking into account of the different voltage characteristics

of primary cells (batteries) and accupacks. The battery status

indications on the displays, the transmission of transmitter

battery status information to the rack-mount receivers and

the switch-off thresholds at the end of the operating time are

corrected correspondingly. Due to the missing sensor, indivi-

dual rechargeable battery cells will not be identified as accup-

acks.

y The monitoring of the rechargeable battery temperature

during charging in the L 2015 charger.

y The prevention of improper charging of inserted primary cells

(batteries). Due to the missing sensor, individual rechargeable

battery cells will also not be charged in the L 2015 charger.

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Sennheiser SK 50 - 04-05 Specifications Page 33

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