User Manual
GAMMA instabus
Technical Product Information
February 2019
Weather Station (GPS) AP 257/22 5WG1 257-3AB22
Siemens Switzerland Ltd DS01 Update: http://www.siemens.de/gamma-td
Building Technologies Division
International Headquarters Siemens AG 2019
Theilerstrasse 1a Subject to change
CH-6300 Zug 2
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 1 lux
121 ... 1.046 lux 2 lux
1.047 ... 52.363 lux 63 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
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 ∅ 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
• Bus: safety extra-low voltage (SELV) DC 24 V
• Device complies with EN 50090-2-2
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