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Commissioning information
Beam sensor STATES
The Beam Sensor is designed to operate in any one of the following sensor STATES.
&
Do not use beam sensor STATES that are not listed below, as selecting an UNUSED STATE will be
interpreted by the panel as STATE 0.
States verses distance
Sensor STATES
minimum to maximum
4 or 5
2 or 3
0 or 1
LPCB approval
The Beam sensor STATES 0, 1, 2 and 3 are approved test at LPCB.
Beam Sensor STATES
STATES
Definition
STATE 0
Default detection
STATE 1
Normal sensitivity
STATE 2
Medium Sensitivity
STATE 3
Medium Sensitivity
STATE 4
High Sensitivity
STATE 5
High Sensitivity
STATE 15
No detection.
10
Ideal range
2m to 30m
5m to 100m
12m to 100m
Application
A fire is detected when there is a 50% (3dB) fall in signal level,
however if the fall is by 90% (10dB) in less than 1second and is
maintained for 40 seconds, then a fault is registered. This allows the
Control panel to differentiate between a fire and a fault signal caused
by accidental obscuration.
A fire is detected when there is a 50% (3dB) fall in signal level,
however if the fall is by 90% (10dB) in less than 1 second and is
maintained for 40 seconds then a fire is registered.
A fire is detected when there is a 25% (1.3dB) fall in signal level,
however if the fall is by 90% (10dB) in less than
1 second and is maintained for 40 seconds then a fault is registered.
A fire is detected when there is a 25% (1.3dB) fall in signal level,
however if the fall is by 90% (10dB) in less than
1 second and is maintained for 40 seconds then a fire is registered.
A fire is detected when there is a 10% (0.5dB) fall in signal level,
however if the fall is by 90% (10dB) in less than
1 second and is maintained for 40 seconds then a fault is registered.
A fire is detected when there is a 10% (0.5dB) fall in signal level,
however if the fall is by 90% (10dB) in less than
1 second and is maintained for 40 seconds then a fire is also
registered.
This is a total disablement of the sensor.
S4 Beam Sensor & brackets
4188-968 issue 4_Part 2_07-12_S4 mains interface
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