CeoTronics CT-DECT Base Manual de instrucciones - Página 12

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3.4

Range warning

In the case the range limit is reached a high 3-beep tone sequence is audible in the base and in the

standard headset approx. every 5 seconds. When the range limit is exceeded the connection will be

released. After the headsets are back again within the reception area the connection setup will be

effected automatically. Finally a high double-beep tone is audible in the headsets and then a high beep

tone which indicates that the connection setup has been completed.

3.5

Battery warning

If the rechargeable battery has an undervoltage a low 3-beep tone sequence is audible in the headset

approx. every 60 seconds.

End of operation

Switch off (switch position OFF) the headset with the On/Off switch and volume control knob (Fig. 3/b)

or the On/Off switch (Fig. 3/d). This guarantees a longer usage from the rechargeable battery.

Recharge the headset battery.

In the case of headsets with ambient sound reception switch off the ambient sound reception with the

rotary knob »ASR« (Fig. 4/b), so that the rechargeable battery does not discharge itself.

Headset with level-limited ambient sound reception

5.1

General

The headset with level-limited ambient sound reception (ASR) (Fig. 4) is used mainly where ambient

sounds, warning signals etc, have to be heard perfectly alongside speech communication.

With ASR, ambient sounds can be received via a second microphone (Fig. 4/a) on the front side of the

right-hand headset muff and can be heard via one ASR speaker each in the right-hand and left-hand

headset muffs. Even when receiving a message the external sound reception is in operation.

In the case of external sound levels of over 85 dB(A) the sound level emitted by the ASR speakers in

the headset muffs to the ear is limited to a maximum of 85 dB(A). The overall noise attenuation of the

headset is, however, limited to passive noise attenuation of the headset muffs.

5.2

Operation

Described below are only the operating control differences relating to external sound reception.

Switch on the ambient sound reception by means of the rotary knob »ASR« (Fig. 4/b) on the rear side

of the right-hand headset muff and adjust by means of this rotary knob the desired volume for the

ambient sound reception. The ambient sound reception is switched off in position »OFF«.

Due to the separate On/Off switch and volume control »ASR« it is possible to use the headset for

ambient sound reception only.

Headsets without separate On/Off switch for the ambient sound reception

Headsets are also available without separate On/Off switch for the ambient sound reception. The

ambient sound reception is switched on and off by the On/Off switch and volume control (Fig. 1/c) for

the device. Then the rotary knob »ASR« (Fig. 4/b) is only used to adjust the volume for the ambient

sound reception.

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