Davis Instruments Daytime Fan Aspirated Radiation Shield Kit User manual

1
Daytime Fan-Aspirated Radiation
Shield Kit Installation Manual
For Vantage Pro2™& Vantage Pro2 Plus™Stations
Introduction
The instructions describe how to upgrade a non-aspirated Vantage Pro2™
radiation shield to a Daytime Fan-Aspirated Radiation Shield. The upgrade
kit can be installed on any Vantage Pro2™or Vantage Pro2 Plus™Inte-
grated Sensor Suite (ISS) equipped with a round-plate non-aspirated, radi-
ation shield. The Daytime Fan-Aspirated Radiation Shield Kit can only be
installed on round-plate non-aspirated radiation shields.
Components
The upgrade kit includes the following components:
Closed Cap Plate
Open Cap Plate
Open Plate
SIM Cover
Fan Plate
Daytime Fan Kit Components

Installing the Daytime Fan Kit
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The kit also includes the following hardware:
Tools Needed
You may need some or all of the following tools and other items to com-
plete the upgrade:
• A medium Phillips-Head screwdriver
• A medium slot-tip screwdriver
• Other tools as required to remove and re-mount the ISS
• Cabled ISS Only: Wire cutters
•Wireless ISS Only: CR-123A 3-volt lithium battery (optional)
Note: If you are upgrading an ISS that has been in service for a year or more, you should
consider changing the ISS battery on the SIM board during the upgrade.
Installing the Daytime Fan Kit
Installation Overview
Installing the Daytime Fan Kit is not very complicated and should take
only 30 to 60 minutes to complete.
These are the steps to install the Daytime Fan components:
1. Put the console into Setup Mode.
2. Take the ISS down from its installed position.
3. Disassemble the standard radiation shield..
4. Assemble the lower section of the fan-aspirated shield.
5. Install the fan unit.
6. Assemble the upper section of the fan-aspirated shield.
7. Re-Install the ISS.
8. Take the console out of Setup Mode.
#8-32 x 3-1/4" Screws
(3)
#8-32 x 1/2" Screws
(3) Threaded Spacers
(3)
#8 Split-Lock Washers (6)
#8 Flat Washers (6)
12" Cable Ties (2)
Daytime Fan Kit Hardware

Installing the Daytime Fan Kit
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Put Console in Setup Mode
1. At your Vantage Pro2 console, press and hold DONE and then press the
down arrow ( - ) to put the console in Setup Mode. This prevents the
reception of erroneous data while you are removing the ISS.
Note: If the console acquires erroneous data during the upgrade, refer to “Take the Console
Out of Setup Mode” for instructions on clearing data. Additional information on clear-
ing and setting console data can be found in the Vantage Pro2 Console Manual.
Take Down the ISS
Please work on your Vantage Pro2 ISS in a safe place. We strongly recom-
mend that you take the ISS down from its sited location before beginning
the upgrade. If you are installing the Daytime Fan Kit on an ISS that has
already been placed into service, you will need to take down the ISS from
its sited location and move it to a convenient and safe place to perform the
installation.
To dissassemble the ISS:
1. Locate the Sensor
Interface Module (SIM)
housing cover on the
side of ISS and open it..
2. Disconnect the Solar
Panel wire on the SIM
cover from the SIM
board by pulling the
Solar Panel connector
3. Pull the foam insert out
of the cable access port
in between the cables
and set the foam insert
aside.
4. Disconnect the ane-
mometer cable from the
sensor connector
labeled WIND and, if
you are using a cabled model, disconnect the console cable from the
SIM.
5. You can now remove the ISS from its mounted position. Move it to a
safe place to install the kit components.
Disassemble the Standard Radiation Shield
Note: We recommend using a workbench or table to perform the following procedures.
1. Open and remove the SIM cover if you have not done so already.
Lift off cover,
unplug solar power
connector
Dettaching the SIM Cover

Installing the Daytime Fan Kit
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2. Disconnect the TEMP/HUM cable from the
SIM and slide the cable out of the cable access
port.
3. Remove the rain collector cone from the ISS
base by rotating the cone counter-clockwise.
When the cone’s latches line up with openings
in the base, you can lift the cone off. The cone
fits in the base tightly and may require extra
pressure to remove the first few times.
Steady the ISS base between your knees when
removing the cone.
Twist to Open
Remove the Rain Collector
Cone

Installing the Daytime Fan Kit
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4. Remove the three 8-32 x 4'' screws holding the radiation shield plates
together.
Standard Radiation Shield Assembly Diagram
4" Screw
(3)
Plates
Rain Collector Base
Temp/Humidity
Sensor
Lock
Washer
Flat
Washer

Installing the Daytime Fan Kit
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5. Save these three screws and washers, and keep the radiation plating
together for use in the next procedure, Assemble the Lower Section
(page 6).
Assemble the Lower Section
Once the existing radiation shield has been disassembled, the existing
disks have to be re-organized and assembled with the fan-aspirated kit. To
re-assemble the radiation shield with the new fan-aspirated shielding:
1. Locate the plate at the top of the radiation shield plating and find the
insulating disk on the underside of the radiation shield.
2. Remove the two screws
holding insulating disk
attached on the under-
side and discard it. Save
the top plate for use in
Step 3.
3. Start building the lower
section of the new radi-
ation shield , starting
with the original bottom
plate on bottom and the
disassembled top plate
above that.
4. Place the plate containing the Temperature/Humidity sensor and the
two open plates on top of the two bottom plates.
Note: When stacking plates, make sure the screw bosses (holes) line up with each other.
5. Place the third open plate (supplied with the fan-aspirated kit) on the
stack.
6. Run the TEMP HUM cable through the top of the three open plates.
7. Set aside the re-assembled radiation shielding and find the fan plate
motor assembly.
Top Plate
Insulating Disk
Remove the Insulating Disk

Installing the Daytime Fan Kit
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8. Attach the three threaded spacers to the fan plate using the three #8-32
x 1/2'' screws and the three #8 washers and #8 lock washers included
with the kit.
Install Threaded Spacers
9. Dettach the fan motor cable from the power cable assembly on the fan
plate and set the fan motor aside.
Dettach Fan Motor Cable
10. Lower the Fan Plate onto the radiation shielding stack.
Fan Plate
Threaded
Spacer
(3)
#8 Flat Washer
#8 Split-Lock Washer
#8-32 x 1/2" Screw
Fan
Fan Plug
Power Cable
Assembly

Installing the Daytime Fan Kit
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11. Bring the TEMP HUM cable over the top of the fan plate so that no
slack in the cable exists between the sensor and the fan plate and press
it firmly into the cable channel on the fan plate.
Fan Plate
Channel
Temperature/Humidity
Cable
Lift Fan Motor up
and set aside
Connecting the Radiation shield and Fan Unit

Installing the Daytime Fan Kit
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12. Place one of the 4'' screws removed from the original radiation shield
and its corresponding #8 lock washer and # 8 flat washer into one of the
radiation shield plate holes on the fan plate located just counter-clock-
wise from a threaded spacer, making sure the screw goes through the
boss in each of the plates and lines up with the threaded insert located
in the bottom plate.
13. Turn the screw a few times to engage the threaded insert in the bottom
plate.
Fan Plate
#8 Flat Washer
#8 Lock Washer
#8-32 x 4" Screws (3)
Threaded Insert
in Bottom Plate
Screw Boss
Install Fan Plate

Installing the Daytime Fan Kit
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14. Make sure the other screw bosses are aligned and then insert the other
two 4'' screws and corresponding washers in the same way.
15. Tighten all three screws to securely fasten the bottom section of the
radiation shield.
16. Place the fan motor back into place and plug the fan motor cable back
into the power cable assembly.
17. Unscrew the cable clamp holding the power cable assembly in place.
18. Thread the TEMP HUM cable into the cable clamp and tighten the
screw back down in its original placement.
19. Place the cap plates on top of the rest of the radiation shield and line up
their bosses.
20. Insert one of the 3 1/4'' screws and corresponding lock and flast wash-
ers included in the kit hardware into the ISS base using the hole indi-
cated for the first screw in the following diagram.
Radiation Shield Mounting Holes (3)
First screw
goes here
Radiation Shield Mounting Holes in ISS base

Installing the Daytime Fan Kit
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21. Lower the ISS base onto the stack so that the screw goes into the boss.
Turn the screw a few times to engage the threads.
#8-32 x3-1/4" Screws (3)
#8 Lock Washers
#8 Flat Washers
Fan Plate
ISS Base
Open Cap Plate
(hole in center)
Closed Cap Plate
Power Cable
Assembly
Temp/Humidity
Cable
SIM Housing
Insert front screw
first
Reconnecting the Radiation Shield to the Rain Collector

Installing the Daytime Fan Kit
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22. Place a lock washer and flat washer on the other two 3 1/4'' screws then
insert them through the remaining two screw holes.
23. Tighten all three screws to securely fasten the radiation shield to the
ISS base.
Re-Install the ISS
1. Install the rain collector cone and lock it in place.
2. Slide the TEMP HUM cable and the fan-aspirated unit’s solar power
cable assembly through the cable access port of the SIM box.
3. Connect the TEMP HUM sensor cable.
4. Close the SIM cover temporarily without connecting the solar panel
cables.
5. Re-install the ISS in its previous location.
6. Open the SIM cover and connect the WIND (anemometer) cable.
7. Cabled ISS Only: Connect the console cable.
8. Connect the wire coming from the top solar panel on the SIM cover
included in the components of the fan-aspirated unit to the SIM board.
Connecting the Solar Panel Wires
9. Connect the wire coming from the bottom solar panel to power cable
assembly in the SIM Box.
10. Reinsert the foam into the cable access port in the SIM box.
11. Close the SIM box .
12. Use cable ties to secure cables.
Top Panel
Wire
Bottom Panel
Wire
Power Cable
Assembly
Temp/Humidity
Cable
Sensor
Interface
Module
(SIM)
SIM
Cove
r

Maintenance
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13. Make sure the fan blades rotate in a counter-clockwise direction by
directing the connect SIM cover to sunlight or by shining a bright
incandescent light on the solar panel.
You should hear a slight whir if the fan is running.
Guidelines for Securing Cables
• Secure cables so they will not whip about in the
wind.
• Secure cables to metal poles by using a cable tie
or by wrapping electrical tape around them both.
• Place clips or ties approximately every 3 to 5 feet
(1 to 1.6 m).
• If needed, additional cable ties, cable tie mounts, and other hardware
can be obtained at a hardware or electronics store.
Note: Do not use metal staples or a staple gun to secure cables. Metal staples—especially
when installed with a staple gun—have a tendency to cut the cables.
Take the Console Out of Setup Mode
1. At your Vantage Pro2 console, press DONE to take the console out of
Setup Mode.
2. Check the console for erroneous rain data and clear if necessary.
To clear erroneous data:
• Select the weather variable to be cleared.
• Press and release 2ND, then immediately press and hold CLEAR.
• The daily rain reading will start blinking.
• Keep holding CLEAR until the reading changes to zero.
• Refer to your Vantage Pro2 Console Manual for more information
on setting and clearing weather variables.
3. Congratulations! You have completed the upgrade and can now enjoy
your daytime fan-aspirated radiation shield.
Maintenance
• Keep the surfaces of the ISS clean, since the radiation shield and solar
panel are less effective when dirty. Remove dust from the solar panel
and radiation shield with a damp cloth.
• Remove any debris obstructing air flow through the radiation shield
such as leaves, twigs, webs, and nests.
• Do not spray the ISS with insecticides of any kind. Some insecticides
can damage the sensors and even damage the radiation shield.
Cable Clip
Cable Tie
Securing Cables

Troubleshooting
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Annual Maintenance
We recommend cleaning out any debris that may have accumulated inside
the radiation shield and replacing the motor (# 7758) on an annual basis.
The routine procedures for annual maintenance include:
1. Remove your fan-aspirated ISS and place on a stable work surface.
2. Disassemble the radiation shield.
3. Remove any debris lodged inside the unit.
4. Clean the surfaces of the radiation shield with a damp cloth.
5. Unplug the old fan unit and remove from it from the radiation shield.
6. Install the new fan unit (#7758) and plug it into the Junction Board.
7. Assemble the Radiation Shield.
8. Re-install the ISS in its previous location.
Troubleshooting
If you are experiencing problems performing the upgrade or have prob-
lems with your Daytime Fan-Aspirated Radiation Shield, first be sure to
check all cable connections. If you are unable to solve the problem, please
call Davis Technical Support. We’ll be glad to help. Most questions can be
answered over the phone. You can also email us for support or visit our
website. Sorry, we are unable to accept collect calls.
Note: Please do not return items to the factory for repair without prior authorization.
Contacting Davis Instruments
[phone] for Technical Support, Monday – Friday, 7:00 a.m. – 5:30
p.m. Pacific Time.
[phone] – Fax to Customer Service or Tech Support.
[email protected] – E-mail to Technical Support.
[email protected] – General e-mail.
www.davisnet.com – Copies of user manuals and other product documents
are available on the “Support” page. Watch for FAQs and other updates.
Subscribe to the e-newsletter.

Troubleshooting
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Addendum, Fan-Aspirated ISS Installation
Rev A Manual (November 19, 2004)
Document Part Number: 7395.236
Product Number:7747
Vantage Pro®and Vantage Pro2™are trademarks of Davis Instruments Corp., Hayward, CA.
© Davis Instruments Corp. 2004. All rights reserved.
Information in this document subject to change without notice.
FCC Part 15 Class B Registration Warning
Thisequipment has been tested and foundto comply with the limitsforaClassBdigital device,pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful inter-
ference to radio ortelevision reception, whichcanbedeterminedbyturning the equipment on and off,the user is encouragedtotryto
correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Changes or modification not expressly approved in writing by Davis Instruments may void the warranty and void the user's authority
to operate this equipment.
IC: 378810-6328
EC EMC Compliance
This product complies with the essential protection requirements of the EC EMC Directive 89/336/EC.