DAVIS Vantage Pro ISS, 2002 & earlier - Manual (Page 9)

Disassembling the Radiation Shield Page 9
D ISASSEMBLING THE R ADIATION S HIELD
The sensors are connected by cables to the Sensor Interface Module , or “SIM”,
located inside the radiation shield. The SIM contains electronics which mea-
sure and store weather values for transmission to the console via cable or radio
waves. The radiation shield’s white plastic plates protect the SIM from sun and
other sources of radiated and reflected heat, and from precipitation.
Before the ISS can be mounted, you need to disassemble the radiation shield
to do the following tasks:
✦ Verify that the rain sensor cable is plugged in
✦ Connect the anemometer sensor cable to the Sensor Interface Module, or “SIM”
✦ Apply power to the ISS (different methods for cabled/wireless versions)
✦ Change the transmitter ID for wireless communication, if necessary
✦ Verify that your console is
receiving and displaying
data
Removing Radiation Shield
Plates
Disassemble the radiation
shield by removing the plates
as shown in the illustration.
1. Turn the rain collector side of
the ISS upside down. Locate
three wing nuts on the under-
side of the radiation shield.
2. Remove the wing nuts, lock
washers and flat washers.
3. Remove the first three plates of
the radiation shield.
You should now be able to
see the SIM.
Open Plate
Open Plate
Closed Plate
#8 Wing Nut
#8 Lock Washer
#8 Flat Washer
Antenna
deployment
hole
Sensor
Interface
Module
(SIM)