WSS 500 Series
User’s Manual/Installation Note
DEIF A/S
Page 20 of 25
5. Replacement of an old wind sensor
type 879.3c by the WSS 500 series
The special upgrade kit should be used when an existing 879.3c
dynamic wind sensor is to be replaced with a new WSS 500 series
sensor and connected to a display type 879.50/879.521 or WSDI.
The interface box type WSI is needed to translate the RS-485 data
signal from the WSS 500 series into a speed and direction TTL signal
appropriate for the 879.50/879.521 or WSDI display.
Remove the tap for the old sensor 879.3c and mount the new sensor.
Notice that the tap is fixed on the new sensor and is not to be
removed.
Follow the instructions in chapter 2 to mount the new WSS 500 series
sensor correctly.
The existing cable can be used. Before mounting the new sensor
using the existing cable, remember to disconnect the cable from the
wind display and check that the cable is not damaged.
The sensor is equipped with a 2 m cable, this cable is connected to
the existing cable using a junction box (normally already mounted).
WSS 500 series WSI 879.50/879.521 or WSDI
Replacing 879.3c
