switel BCF820, Operating Instructions Manual

Page: 43 / 52

Operating the Transmitter
43
4 Operating the Transmitter
Check the transmitter and receiver are working properly each time before the equipment is
put into operation.
Switching the transmitter on/off
1. Set the Power switch (22) to its ON" position. The Power LED (15) lights up red. The transmitter
is now ready to operate.
2. Position the transmitter in a good position for the monitoring tasks required and align the lens to
the area to be monitored.
3. To switch the transmitter off, set the Power switch (22) to its OFF" position.
4. When the VOX switch is set to CAMERA" (21), the image and ambient sounds are transmitted
continually. When set to AUTO" (21), ambient sounds and the image are transmitted from a
sound level of approx. 50 dB.
VOX sensitivity
The VOX
1
function causes the system to start transmitting automatically from the transmitter to the re-
ceiver immediately a voice or sound is detected.
There is a slight delay in the transmission before the receiver can reproduce the voice/sound
and picture.
If no voice or sound is detected for longer than one minute, transmission is automatically inter-
rupted.
Night vision
The integrated infrared technology enables image transmission from unlit areas. The night vision func-
tion is activated automatically when the light conditions make it necessary.
When the night vision function is activated, the screen display on the receiver turns to black
and white. The transmission range is approx. 2 m in this case.
Night light
The night light can be switched on either continuously or automatically on detecting sound levels of
50 dB or more.
1. Set the
Night Light switch (23) to ON". The night light is switched on permanently.
2. Set the Night Light switch (23) to OFF". The night light is switched off.
3. Set the Night Light switch (23) to AUTO". The night light is switched on automatically from a
sound level of approx. 50 dB.
1
VOX: V oice O perated T ransmission = sound detection