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GAMMA instabus
Technical Product Information
February 2019
Weather Station (GPS) AP 257/22
Installation Instructions
If the weather station has been damaged, it must not be
commissioned.
V
WARNING
· The device must be mounted and commissioned by an
authorised electrician.
· For planning and construction of electric installations,
the relevant guidelines, regulations and standards of
the respective country are to be considered.
Technical Specifications
Sensors
· Wind sensor:
Measuring range: 0 ... 35 m/s,
Resolution: 0.1 m/s
precision at ambient temperature -20...+50°C:
±22% of measured value with air flow from 45...315°
±15% of measured value with air flow from 90...270°
(air flow onto the front equals 180°)
· Brightness sensor:
Measuring range: 0 ... 150.000 lux,
Resolution at:
0 ... 120 lux
121 ... 1.046 lux
1.047 ... 52.363 lux
52.364 ... 150.000 lux 423 lux
Precision:
±20% at 0 lx ... 10 klx
±15% at 10 klx ... 150 klx
· Temperature sensor:
Measuring range: -30 ... +50 °C,
Resolution:
0.1 °C
Precision:
±0,5°C at +10...+50°C,
±1°C at -10...+10°C,
±1,5°C at -25...-10°C
· Rain sensor:
Heating: approx. 1.2 W
Voltage supply
· Bus voltage: via the bus line
· KNX bus current: 9 mA
· Auxiliary power sensor electronics:
AC 20 V (AC 12...28V) 50/60 Hz or
DC 24 V (DC 12...40V) max. 185 mA at DC 12V, residu-
al ripple < 10%, max. permissible cable length 100 m
· Power consumption: max. 2.3 VA
Siemens Switzerland Ltd
Building Technologies Division
International Headquarters
Theilerstrasse 1a
CH-6300 Zug
Operator elements
1 commissioning button: for switching over between
normal mode / addressing mode
Display elements
· 1 red LED: for display of normal mode / addressing
mode (off / on)
· 1 red LED: as control display for GPS reception
Connections
· Voltage supply: plug terminals for solid conductors or
finely stranded conductors 0.5 ... 1.5mm²
· Bus connection: screwless bus terminal,
0.6... 0.8 mm Æ single-wire, insulation strip length 5
mm.
Mechanical data
· housing: plastic
· Dimensions :
approx. 118 mm x 96 mm x 77 mm (L x W x H)
· Weight: approx. 170 g
· Fire load: approx. 5360 kJ
· Mounting: Mast or wall mounting
Electrical safety
· Degree of pollution (according to IEC 60664-1): 2
· Type of protection (according to EN 60529): IP 44
· Overvoltage category (according to IEC 60664-1): III
1 lux
· Bus: safety extra-low voltage (SELV) DC 24 V
2 lux
· Device complies with EN 50090-2-2
63 lux
EMC requirements
complies with EN 50090-2-2
Environmental conditions
· Climatic conditions: EN 50090-2-2
· Ambient temperature operating: - 30 ... + 50 °C
· Ambient temperature non-op.: - 30 ... + 70 ° C
· Relative humidity (non-condensing): 5 % ... 93 %
Markings
KNX EIB
CE mark
complies with the EMC regulations (residential and func-
tional buildings), and low voltage regulations
DS01
ã Siemens AG 2019
Subject to change
5WG1 257-3AB22
Update: http://www.siemens.de/gamma-td
2
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