DAVIS Vantage Pro ISS Retrofit Kit User Manual
Va nt ag e P ro® ISS Retrofit Kit
INSTRUCTIONS Estimated Time Required: 30 Minutes
This Instructio n Shee t desc ribes how t o inst all the I SS Retrofit Kit for a Vantage
®
or Vantatge Pro Plus Integrated Sensor Suite (ISS).
Pro
Components
The ISS Retrofit Kit includes the following components and hardware:
• New Sensor Interface Module (SIM) preinstalled in a SIM housing,
attached to a new bo ttom radiation shield plate along with a new separate Temp/Hum sensor module
• Three long screws with nuts, flat washers, and lock washers
• One 3-volt CR-123A lithium battery
Tools for Setup
In addition to the kit, you will need the following tools:
• 7/16” (12mm) wrench or adjustable wrench
• Phillips screw driver
• Hammer
• Pliers
Overview of Kit Installation
1. Remove the ISS from its Mounted Position
2. Dissassemble the ISS Radiation Shield
3. Install the Retrofit Kit components
4. Connect Cables and Power the New SIM
5. Verify Communications - Wireless Models
6. Mount the ISS
7. Return the Old SIM to Davis
Product # 6920, 6920C
Remove the ISS from its Mounted Position
In order to take down your ISS you will first need to disconnect the anemometer cable. If you have a Cabled Vantage Pro station, you will also need to disconnect the console cable from the ISS.
CAUTION:Please work on your Vantage Pro ISS in a safe place.
1. At your Vantage Pro console, press and hold t he DONE ke y and th en press
the “-” (down arrow) key to put the console in Setup Mode. This will prevent the reception of erroneous rain counts from the rain collector.
2. At the ISS, remove
and discard the three
(3) wing nuts from the
bottom of the radiation shield.
3. Remove the three (3) bottom plates from the shield.
4. Set aside the two open (middle) plates.
5. Discard the bottom closed plate.
6. Disconnect the WI ND sensor (anemometer) cable.
7. Cabled Stations Only:
Disconnect the Console cable from the
SIM.
8. You can now remove
the ISS from it’s
mounted position.
Move it to a safe place
to install the kit components.
Sensor
Interface
Module
(SIM)
Antenna
Antenna
Deployment
Hole
(Wireless only)
#8 Flat Washer
Rain Collector
Base
Top Closed Plate
(Save this plate)
Open Plate
(Save this plate)
Open Plate
(Save this plate)
Bottom Closed Plate
(Discard this plate)
#8 Lock Washer
#8 Wing Nut
Opening the Radiation Shield
Page 2 Vantage Pro® ISS Retrofit Kit
Dissassemble the ISS Radiation Shield
Note:We recommend using a workbench or equivalent flat surface for the following pro-
cedures.
1. With the rain collector cone in place, turn the ISS over so it rests on the top of the cone.
2. Disconnect the rain collector ca ble and (if pr esent) the so lar panel cab le, and
the SUN (solar radiation) and UV sensor cables.
Mounting Screws (4)
UV Sensor
Solar Sensor
Rain Collector
Anemometer
Solar Panel Cable (wireless only)
UV SUN RAIN WIND
CONSOLE
3-Volt
Lithium
Battery
(wireless
only)
AC Power
(optional)
Console Cable
(cabled only)
DavisTalk Transmitter ID Switches
Green Test LED
Old SIM Connections and Screw Locations
3. The SIM transmitter board, dust cover, and small rear cover plate (not
shown) are attached to the top radiation shield plate by 4 sc rews . Unscrew
these screws and remove the front dus t co ver along with the SIM and the
rear cover plate.
4. Make a note of the transmitter ID switch settings. You will use these settings in the new replacement SIM.
Switch Position1234
Switch Setting OFF
5. Remove the battery fr om the cir cuit b oar d and se t all ID code pos iti ons ON . With all the transmitter ID switches set to ON, the power stored in the old
SIM’s super capacitor should dissipate within one hour.
Note:Setting the #1, 2 and 3 ID switches to ON will set your transmitter ID to “8”. Setting the
#4 ID switch will turn on the ISS test mode. Set the #1, 2 and 3 switches differently if you
are using Station 8 in your weather station. Refer to Appendix A.”Wireless Transmitter
Settings” in your ISS Installation Manual for more information.
6. Save the battery as a back-up and s et aside the SIM board for return to Davis.
Dissassemble the ISS Radiation Shield Page 3
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