elsner elektronik KNX RW Technical Specifications And Installation Instructions

EN

Rain/Wind Sensor KNX RW

Technical specifications and installation instructions

Elsner Elektronik GmbH Control and Automation Engineering

Herdweg 7
D – 75391 Gechingen Phone [phone] / 93 97-0 [e-mail]
Germany Fax [phone] / 93 97-20 www.elsner-elektronik.de

2 Description

1. Description

The Rain/Wind Sensor KNX RW measures precipitation and wind speed and trans­fers the values to the KNX system. Four switching outputs with three adjustable
threshold values as well as additional AND and OR logic gates are available. The sen­sor system, the evaluation electronics and the electronics of the bus connection are
mounted in a compact housing.

Functions:

• Precipitation perception: The surface of the sensor is heated so that only

drops and flakes are recognised as precipitation but not fog or dew. If it stops
raining or snowing, the sensor dries quickly and the precipitation message
ends

• 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

• 4 switching outputs, 3 with adjustable threshold values (Threshold values

can be set by parameter or via communication objects)

• 8 AND and 8 OR logic gates with each 4 inputs. Every switching incident as

well as 8 logic inputs (in the form of communication objects) may be used as
inputs for the logic gates. The output of each gate may optionally be configured
as 1 bit or 2 x 8 bits

Configuration is made using the KNX software ETS. The programme file (format
VD2), the data sheet and the manual can be downloaded from the Elsner Elektronik
homepage on www.elsner-elektronik.de in the “Service” menu.

1.1. Technical specifications

Housing Plastic material

Colour White/ translucent

Mounting On-wall

Protection category IP 44

Dimensions approx. 96 × 77 × 118 (W × H × D, mm)

Weight 230 V AC version: approx. 240 g,

Ambient temperature Operation -30…+50°C, storage -30…+70°C

Operating voltage Available for 230 V AC or 24 V DC (20 V AC).

Cable cross-section Massive conductors of up to 1.5 mm² or conductors

Current 230 V AC version: max. 20 mA, 24 V DC version max.

Data output KNX +/- bus terminal plug

Rain/Wind Sensor KNX RW • Date of issue: 05.11.2010 • Technical changes reserved. Errors reserved.

24 V DC version: approx. 170 g

An appropriate 20 V AC power supply unit can be
obtained from Elsner Elektronik.

with fine wires

100 mA, residual ripple 10%

3 Installation and commissioning

BCU type Own micro controller

PEI type 0

Group addresses max. 254

Allocations max. 255

Commmunication objects 81

Heating rain sensor approx. 1,2 W (230 V and 24 V)

Measurement range wind 0...70 m/s

Resolution (wind) <10% of the measured value

Accuracy (wind) ±25% at 0...15m/s, at an angle of attack of 45°,

The following standards have been considered for the evaluation of the product in
terms of electro magnetic compatibility:
Transient emissions:

• EN 60730-1:2000 Section EMV (23, 26, H23, H26) (threshold category: B)

• EN 50090-2-2:1996-11 + A1:2002-01 (threshold category: B)

• EN 61000-6-3:2001 (threshold category: B)
Interference resistance:

• EN 60730-1:2000 Section EMV (23, 26, H23, H26)

• EN 50090-2-2:1996-11 + A1:2002-01

• EN 61000-6-1:2004
The product has been tested for the above mentioned standards by an accredited EMV
laboratory.

pole mounting

2. Installation and commissioning

2.1. Notes on installation

Warning, mains voltage!
National legal regulations are to be observed.

Installation, inspection, commissioning and troubleshooting of the
device must only be carried out by a competent electrician.

Disconnect all lines to be assembled, and take safety precautions against accidental
switch-on.

The device is exclusively intended for appropriate use. With each inappropriate change
or non-observance of the instructions for use, any warranty or guarantee claim will be
void.

After unpacking the device, check immediately for any mechanical damages. In case of
transport damage, this must immediately notified to the supplier.

Rain/Wind Sensor KNX RW • Date of issue: 05.11.2010 • Technical changes reserved. Errors reserved.