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3. Sensor Installation
The sensorHUB has eight inputs for sensors, the input module expects a 4-20mA sensor sig-
nal. Any sensor with this sensor signal could be connected to the system, as long as the sensor
could be supplied with the 24 volts that the sensorHub supplies and that the helioCORE system
has support for it.
The sensors should be placed at canopy level or as close to the canopy as possible. Once the
sensors have been placed appropriately, then make sure to place the cable in safe locations
out of direct passing traffic as they are fragile by nature. The best is to install them close to
a structural element such as a support pole and pull the cables along the truss space to the
sensorHUB .
Most sensors come equipped with 5 m (16 ft 5 in) long cables, prebuilt extentions could also
be purchased. If extensions are made with a general cable, it is important that the cable fufills
this requirments: Shielded Twisted Pair AWG20 (0,52mm2). It is also very imortant that the
cable shielding connected and intact all the way from the sensor into the sensorHUB and then
connected to the GND bar.
Each sensor has an indended cable gland, make sure that the cable gland seals correclty around
the cable, so that no moisture enters. Each gland have a pushout seal that seals the gland when
no cable is connected. Only one cable is allowed in each gland, to ensure proper sealing. The
cable gland will accept cable dimensions between 3 and 5mm (12 to 14 AWG).
3.1 Cable Installation
LAN
S1
S2
S3
S4
Sensor data cable entry
S5
S6
S7
S8
