Duevi DIRRVE, DIRFE User Manual
This electronic device is compliant to the essential requirements of the
European Union (EU) norms, concerning the electromagnetic compatibility and
the electric safety.
DIRRVE - DIRFE
OUTDOOR DUAL-IR SENSOR
USER MANUAL
(VERSION 2.4)
We thank you very much for choosing our product.
Now we would like to invite you to read carefully the following
instructions before installing the product in order to use all its capacities.
This manual can be modified without any warning
2
DIRRVE-DIRFE V2.4
DIRRVE – DIRFE
Outdoor DUAL-IR sensor
DIRRVE / DIRFE is an innovative passive infrared sensor for outdoor use. It
has two PIR detection heads that are completely independent and can be
separately adjusted.
This allow to obtain a great functioning versatility and contemporary, if correctly
installed, an excellent reduction of unwanted alarm.
Infact the sensor can work with two different logic combinations between the
two heads: OR logic or AND logic. In OR mode, the sensor gives alarm when
any one of the sensible elements detects a movement. In AND mode, the
sensor gives alarm only when both elements detect a movement. It is also
possible to select a directional AND mode.
ALL THIS MEANS MORE SECURITY
AND LESS UNWANTED ALARMS.
AVAILABLE MODELS:
DIRRVE wireless version
DIRFE wired version
Both the models are identical in functionality and optical performances. They
only differ for the alarm transmission method.
This manual can be modified without any warning
3
DIRRVE-DIRFE V2.4
WARNING
DIRRVE-DIRFE HAS BEEN DESIGNED TO GUARANTEE A VERY
HIGH IMMUNITY TO LIGHT INTERFERENCE, HOWEVER VERY
BRIGHT LIGHT CAN PRODUCE A RANGE DECREASE. IT IS
THEREFORE RECOMMENDED TO TAKE GREAT CARE IN
INSTALLATION TO AVOID DIRECT OR REFLECTED SUNLIGHT OR
HIGH INTENSITY LIGHT BEAMS
IT IS RECOMMENDED TO USE THE OUTDOOR SENSOR AS AN
ADDITIONAL TOOL TO A SECURITY SYSTEM AND NOT FOR
ACTIVATING DIRECTLY ALARM TOOLS AS SOUNDERS AND
PHONE DIALLERS
AVOID TO ORIENT THE SENSOR TOWARDS MOVING OBJECTS
SUCH AS BUSHES, FLAGS, BRANCHES ETC, IN ORDER TO AVOID
UNWANTED RELEVATION
IN OUTDOOR INSTALLATION, IT IS RECOMMENDED TO USE THE
SENSOR IN THE “AND MODE” FOR A BEST IMMUNITY TO
UNWANTED ALARMS AND TO SET BOTH ELEMENTS IN THE SAME
DIRECTION. INCORRECT INSTALLATION COULD REDUCE
SECURITY LEVEL.
THE SENSOR DIRRVE HAS AN IP54 PROTECTION LEVEL AGAINST
THE DUST AND WATER. IF POSSIBLE, IT IS ANYWAY
RECOMMENDED TO AVOID INSTALLING THE SENSOR IN AREAS
DIRECTLY EXPOSED TO RAIN OR SNOW. DO NOT SPRAY ANY
HIGH PRESSURE WATER ON THE SENSOR. WHEN POSSIBLE
INSTALL THE SENSOR IN SHELTERED AREAS OR MOUNT IT ON
THE DEDICATED BRACKET (STA).
TO HAVE THE IP54 LEVEL IT IS MANDATORY TO INSERT THE ORING INCLUDED IN THE PACKAGE.
IF YOU DO NOT COMPLY WITH THE ABOVE MENTIONED
RECCOMANDATIONS, IT MAY CAUSE A NOT CORRECT WORKING
OF THE SENSOR AND IN SUCH AN EVENT, THE MANUFACTURER
WILL DECLINE ANY RESPONSIBILITY.
This manual can be modified without any warning
4
DIRRVE-DIRFE V2.4
PROPER USE OF THE SENSOR
DIRRVE/DIRFE sensor can be fixed at height between 50 and 250 cm from the
ground level, on vertical surfaces, walls or posts using the fixing and protecting
provided visor.
Each detection unit is equipped with a Fresnel lens that builds 5 double sectors
beams horizontally oriented with a radial aperture of 100° (Fig.1).
Fig. 1 - View of the beam’s sectors
NOTICE
The IR sensor is sensible to the “
amount of heat” emitted by a moving
body. The maximum range of the sensor (measured in meters) is referred
to a human body. However the same “
amount of heat” may be emitted by
a smaller body at lower distances, or by a larger one at greater distances.
It should be considered therefore that
the range of any passive infrared
sensor is a RELATIVE measure (referring to a human body) and NOT
ABSOLUTE (for any body).
Range
(m)
IR sensor
This manual can be modified without any warning
5
DIRRVE-DIRFE V2.4
OUTDOOR USE
The detecting units MUST be adjusted in order to have beams facing
downward to the ground level or parallel to the ground, but NEVER upward.
This is to avoid situations of blinding by sunlight during the day and to prevent
the not-correct working of the sensor.
The two detecting units MUST be adjusted on the vertical axis in order to the
two beams pattern slight divergent: the upper unit see the most distant area,
the lower one see the nearer area. In this way, using the AND logic, an alrm is
triggered only when a human intruder crosses both the beams. The alarm is
not triggered when only one beam is crossed for example by an animal or
objects that you do not want to be considered intruders.
Fig. 2 - AND logic mode: the human trigger alarm, the dog doesn’t.
The function of "directional AND" allows to further refine the way in which an
alarm is triggered. This mode make the sensor to trigger an alarm only after a
sequence of detection that starts with the upper head (farther beams) and end,
within the AND period, with the lower head (closest beams).
This feature allows to give a directionality to the detection, that means the
sensor is able to identify an intruder approaching the protected zone, avoiding
alarms for people who, even if moving inside the detection zone of the upper
head, are not approaching the protected zone.
NO ALARM
ALARM
NO
ALARM
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