Download User Manual - Future Senior

Function
General
BE1530/BE1550 Bellman Visit 868 Smoke Alarm is a radio transmitter within the Bellman Visit 868 System for indoor use,
which detects smoke. When smoke is detected, the Smoke Alarm will transmit a fire alarm signal to all Bellman Visit 868
receivers which are within its range.
Bellman Visit Smoke Alarms are activated by smoke detected by a built-in smoke detector. There are two types of smoke
detector: optical (BE1530) and ionising (BE1550).
The differences between the two types are explained briefly below:
• Ionising smoke alarms measure electrical resistance in the air and will therefore react to both visible and invisible smoke.
Ionising smoke alarms are considered most useful for detecting rapid (or explosive) fires that burn completely, i.e. fires with
open flames and a supply of oxygen. This type of fire can spread quickly and produce a large number of invisible combustion
particles. Such fires include fires in waste paper baskets, TV fires or grease fires in kitchens.
• The optical smoke alarm contains no radioactive material but has a very advanced photocell system, which detects visible
smoke particles using infrared light. This is a very effective system for detecting smouldering fires. A fire can burn for several
hours without developing into a fire with open flames. Examples of such fires include cigarettes touching furniture or
overheated electric cables.
The majority of international investigations have demonstrated that both optical and ionising smoke alarms are needed to
detect fires in the shortest possible time, regardless of cause. The majority of countries therefore recommend that either both
types of smoke alarm, or combined smoke alarms with both ionic and optical detectors, be installed. This is of course the best
alternative, as it will detect a fire as soon as possible, regardless of the cause. For example, a cigarette lying in a waste paper
bin will cause an explosive fire in a very short length of time, whilst a cigarette resting on a sofa will cause a smouldering fire
that takes longer to burn.
Radio key
On delivery all Bellman Visit 868 units are tuned to the same Radio Key. If you have a neighbour with a similar system, you
can change to different Radio Keys so that you do not affect each other’s systems. If you use the Radio Key Switch (5) to
change the Radio Key on this transmitter, you must also change all other units in your Bellman Visit 868 System to the same
Radio Key. Refer to the user manual for the relevant unit.
Broadcasting
On delivery the Bellman Visit 868 Smoke Alarm is set to only transmit signals to systems which are set to the same Radio
Key as the Smoke Alarm.
By changing the broadcast switch (6) to ON, the operation of the Smoke Alarm can be changed so that it transmits the smoke
alarm signal to all Bellman Visit 868 receivers within its range regardless of the Radio Key that is set.
Note that the battery warning signal is only transmitted to receivers with the same Radio Key as the Smoke Alarm regardless
of the broadcast key setting.
Indicators and Signals
System indicators
The LED (2) blinks red when the Bellman Visit 868 Smoke Alarm indicates an alarm.
Power supply
The LED (2) blinks red approximately once per minute to indicate that the Bellman Visit 868 Smoke Alarm is working
correctly.
The Bellman Visit 868 Smoke Alarm will beep once per minute while the LED (2) blinks when the battery is becoming
completely flat.
A flat battery alarm signal will then be transmitted to the Bellman Visit 868 System which causes the receivers to briefly
indicate a fire alarm at the same time as the receivers’ fire alarm LED blinks once every five seconds.
Troubleshooting in brief
Problem
Solution
Nothing happens when the
transmitter is activated with
the Test Button (2).
• Change the battery. Use a Duracell MN1604, Energizer 522
(alkaline) or Ultralife U9VL-J (lithium).
The Bellman Visit 868
• Change the battery. Use a Duracell MN1604, Energizer 522