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Sensor Operation
The RVS sensor is powered by solar energy from natural or artificial light sources.
The solar energy is transformed into electrical energy which is then used
as a power source for the sensor. Powered by two solar cells, the sensor will
begin operation without a battery within 2 minutes of being in sufficient light.
The sensor will operate with 6 foot candles (65 lux) light energy. The RCS has
instantaneous operation (battery powered).
Wireless Telegrams
The motion sensor supports the Occupancy Sensor EnOcean profile A5-07-01.
The sensor will transmit occupancy or vacancy depending on the occupancy
state of the room. The sensor will broadcast occupancy immediately upon a
state change from vacant to occupied. The sensor broadcasts a telegram when
movement is detected and repeats occupied telegrams with a minimum 100
second period between subsequent transmissions.
After detecting motion, the sensor is shut-down to conserve energy for 100
seconds. When the sensor awakens and further motion is detected, the sensor
will transmit an occupied telegram. If no motion is detected within 100 seconds,
the sensor transmits a vacancy telegram, 200 seconds total since the previous
transmission. The sensor will remain active until the next occupancy state is
triggered by motion detection. If the sensor does not detect motion, it resends
the vacancy telegram every 1000 seconds.
Motion Detection
The sensors use a PIR sensor element that detects motion by measuring the infrared
energy emitted by objects. The sensors are calibrated to detect the temperature
range of the human body. The sensor has a lens that breaks the viewing angle of the
sensor into zones (movement zones), infrared energy moving in and out of a zone
is how the occupied state is defined. The amount of movement that triggers the
sensor is dependent upon the density of the zones where the motion takes place. A
0
0
8ft/2.4m
8ft/2.4m
10ft/3m
10ft/3m
15ft/4.5m
15ft/4.5m
0
8ft/2.4m
10ft/3m
30ft/9.1m
2
10ft/3m
10ft/3m
5ft/1.5m
5ft/1.5m
Lens A: use for small motion detection or small rooms.
20ft/6m
10ft/3m
Lens B: use for large motion detection or larger rooms.
0
0
5ft/1.5m
5ft/1.5m
0
10ft/3m
10ft/3m
10ft/3m
15ft/4.5m
15ft/4.5m
20ft/6m
30ft/9.1m
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