P03/3-RS485-GPS/CET Weather Station
1
P03/3-RS485-GPS/CET Weather Station
• Version: 07.06.2021 • Technical changes and errors excepted. • Elsner Elektronik GmbH • Sohlengrund 16 • 75395 Ostelsheim • Germany • www.elsner-elektronik.de •
Technical Service: +49 (0) 7033 / 30945-250
P03/3-RS485-GPS, P03/3-RS485-CET
Weather Station
Technical specifications and installation instructions
1.
Description
The
P03/3-RS485-GPS/CET Weather Station
measures temperature, wind
speed and brightness (eastern, southern and western sun). It recognizes precipita-
tion and receives the time signal with a GPS receiver. With the weather station P03/
3-RS485-GPS the international time signal UTC and position coordinates are out-
put. Direction (azimuth) and hight (elevation) of the sun are also calculated and
output. For the P03/3-RS485-CET Weather Station, the Central European Time
(CET) is output. The daylight savings time is adjusted automatically according to
the specifications for Central Europe.
The weather station sends the currently recorded weather data, date and time once
every second. This data flow can be received and analyzed by an end device such
as SPS, PC or MC.
Functions:
•
Brightness measurement
with three separate sensors for east, south and
west. Recognition of twilight/dawn
•
Wind measurement:
The wind strength measurement takes place
electronically and thus noiselessly and reliably, even during hail, snow and
sub-zero temperatures. Even turbulent air and anabatic winds in the vicinity
of the weather station are recorded
• Temperature measurement
•
Heated
precipitation sensor
(1.2 watts): No false reports as a result of fog
or dew. Dries quickly after precipitation has stopped
•
Sending cycle for data 1 second
Functions P03/3-RS485-GPS:
•
Integrated
GPS receiver
. Output of UTC (Universal Time Coordinated),
position (degree of longitude and latitude) and position of the sun (azimuth,
elevation)
Functions P03/3-RS485-CET:
•
Integrated
GPS receiver
. Output of CET (Central European Time),
automatic adjustment of daylight savings time.
1.0.1. Scope of delivery
•
Weather station
1.1. Technical specifications
The product conforms with the provisions of EU directives.
2.
Installation and commissioning
Installation, testing, operational start-up and troubleshooting should
only be performed by an authorised electrician.
CAUTION!
Live voltage!
There are unprotected live components inside the device.
• Inspect the device for damage before installation. Only put undamaged
devices into operation.
• Comply with the locally applicable directives, regulations and provisions
for electrical installation.
• Immediately take the device or system out of service and secure it against
unintentional switch-on if risk-free operation is no longer guaranteed.
Use the device exclusively for building automation and observe the operating ins-
tructions. Improper use, modifications to the device or failure to observe the ope-
rating instructions will invalidate any warranty or guarantee claims.
Operate the device only as a fixed-site installation, i.e. only in assembled condition
and after conclusion of all installation and operational start-up tasks, and only in
the surroundings designated for it.
Elsner Elektronik is not liable for any changes in norms and standards which may
occur after publication of these operating instructions.
2.0.1. Installation position
Choose an installation position in the building where wind, rain and sun can be
measured unhindered by the sensors. The weather station must not be installed
underneath any structural parts from which water can still drip onto the rain sensor
after it has stopped raining or snowing. The weather station must not be shaded
by anything, such as building structures or trees.
At least 60 cm of clearance must be left all round the weather station. This facilita-
tes correct wind speed measurement without eddies. The distance concurrently
prevents spray (raindrops hitting the device) or snow (snow penetration) from im-
pairing the measurement. It also does not allow birds to bite it.
Please take note that an extended awning does not shade the device from sun and
wind.
Temperature measurements can also be affected by external influences such as by
warming or cooling of the building structure on which the sensor is mounted, (sun-
light, heating or cold water pipes).
Magnetic fields, transmitters and interfering fields from electricity consumers (e.g.
fluorescent lamps, neon signs, switched-mode power supplies etc.) can interfere
with or even cut out reception of the GPS signal.
2.1. Mounting the sensor
2.1.1. Attaching the mount
The sensor comes with a combination wall/pole mount. The mount comes adhered
by adhesive strips to the rear side of the housing. Fasten the mount vertically onto
the wall or pole.
2.1.2. View of rear side and drill hole plan
Housing
Plastic material
Colour
White / translucent
Mounting
On-wall
Degree of protection
IP 44
Dimensions
approx. 96 × 77 × 118 (W × H × D, mm)
Weight approx.
160
g
Ambient temperature
Operation -30…+50°C, Storage -30…+70°C
Operating voltage
24 V DC ±10%.
A suitable power pack can be purchased from Elsner
Elektronik.
Cable cross-section
Massive conductors of up to 0.8 mm²
Current
max. 120 mA, residual ripple 10%
Data output
RS485
Heating rain sensor
approx. 1.2 W
Measurement range
temperature
-40…+80°C
Resolution (temperature)
0.1°C
Accuracy (temperature)
±1.5°C at -25…+80°C
Measurement range wind
0…35 m/s
Resolution (wind)
0,1 m/s
Accuracy (wind)
at ambient temperature -20…+50°C:
±22% of the measurement value when incident flow
is from 45…315°
±15% of the measurement value when incident flow
is from 90…270°
(Frontal incident flow corresponds to 180°)
Item numbers
30145 (P03/3-RS485-GPS)
30151 (P03/3-RS485-CET)
Measurement range
brightness
0 … 99,000 lux
Resolution (brightness)
1 lux up to 300 lux
2 lux up to 1,000 lux
20 lux up to 99,000 lux
Accuracy (brightness)
±15% at 30 lux … 30,000 lux
Fig. 1
There must be at least 60 cm of space
below, to the sides and in front of the
weather station left from other ele-
ments (structures, construction parts,
etc.).
60 cm
Fig. 2
The weather station must be mounted
on a vertical wall (or a pole).
Wall
or
pole
Fig. 3
The weather station must be mounted
in the horizontal transverse direction
(horizontally).
Horizontal
Fig. 4
For installation in the northern hemis-
phere, the weather station must be
aligned to face south.
For installation in the southern hemis-
phere, the weather station must be
aligned to face north.
North
South
Fig. 5
When wall mounting: flat side on wall,
crescent-shaped collar upward.
Collar
Fig. 6
When pole mounting: curved side on po-
le, collar downward.
Collar
Fig. 7
Different mounting arms are available
from Elsner Elektronik as additional, op-
tional accessories for flexible installation
of the weather station on a wall, pole or
beam (pictures of sensors exemplary).
Example of the use of a mounting arm:
Due to flexible ball joints, the sensor can
be brought into ideal position.
Fig. 8
Example use of the hinge arm mounting:
With the hinge arm mounting, the weat-
her station projects from beneath the
roof overhang. Sun, wind and precipita-
tion can act upon the sensors without
hindrance.
Fig. 9
Example use of the hinge arm mounting:
Fitting to a pole with worm drive hose
clips
Langloch 7,5 x 5 mm
Fig. 10 a+b
Drill hole plan
Dimensions of rear side of housing with bra-
cket. Subject to change for technical enhan-
cement.
EN
