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GAMMA

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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
Theilerstrasse 1a

 Siemens AG 2019

CH-6300 Zug

Subject to change

5

provided terminals while taking polarity into account
(see fig. 1).

Fastening the weather station:
Close the enclosure by putting the lid over the lower
part. The lid must snap into place on the left and the
right with a clear “click”. Check that the lid and lower part
are  properly  snapped  into  place!  Fig.  10  shows  the  cor-
rectly closed weather station from below.

Figure 10

Now slide the enclosure into the mounted holder from
above. The pegs of the holder must slot into the rails of
the enclosure (see fig. 11).

Figure 11

When needed, the weather station can be pulled out of
the holder in an upwards direction.

Notes:
Do not open the weather station if water (rain) can get
into the inside. A few drops are enough to damage the
electronics.

Take care that the connections are correctly made. A
wrong connection can destroy the electronics of the
weather station.

During assembly care should be taken that the tempera-
ture sensor (small circuit board on the lower part of the
enclosure) is not damaged. The cable connection be-
tween the circuit board and the rain sensor may not be
torn off or bent while making the connection.

The wind measurement value is first transmitted 30
seconds after initiating the supply voltage.

Maintenance
The weather station should be regularly (twice per year)
checked for soiling and cleaned if necessary. In case of
strong pollution, the wind sensor may cease to function,
rain may be reported permanently or no more sun may
be detected.

During maintenance and cleaning, the weather station
should always be separated from the bus and the supply
voltage for safety purposes.

General Notes

The operating instructions must be handed over to the
client.

Any faulty device is to be sent together with a return
delivery note to the local Siemens office.

If you have further questions concerning the product

,

please contact our technical support:

'

  +49 (911) 895-7222

7

  +49 (911) 895-7223

*

 [email protected]

www.siemens.com/automation/support-request

Summary of Contents for AP 257/22

Page 1: ... is not lowered completely but only so far that the sun can still shine into the room for a certain distance e g 50 cm which can be set by a parameter This way the occupant of the room can look outside in the lower part of the window and plants on the windowsill can receive sunshine With externally mounted Venetian blinds the sun track ing control of slats can avoid heat influx into the room due t...

Page 2: ...ing 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 dis...

Page 3: ...h water could con tinue to drop on to the precipitation sensor even after rain or snow has stopped The weather station should not be shaded by the building or e g trees There must be at least 60 cm free space around the weather station to allow correct wind measurements and to prevent the station from being snowed in It is recommended to install the weather station on a mast It should be en sured ...

Page 4: ...a mast pole Fasten the holder vertically with the curved side to the mast pole and the bar to the bottom see fig 6 Figure 6 View of the rear wall and drilling scheme Dimensioning of the rear of the enclosure with holder see fig 7 drilling scheme see fig 8 Figure 7 Figure 8 Preparing the weather station The lid of the weather station with the rain sensor is slotted in on the right and the left at t...

Page 5: ...ke care that the connections are correctly made A wrong connection can destroy the electronics of the weather station During assembly care should be taken that the tempera ture sensor small circuit board on the lower part of the enclosure is not damaged The cable connection be tween the circuit board and the rain sensor may not be torn off or bent while making the connection The wind measurement v...

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