Davis Instruments Fan-Aspirated Radiation Shield Installation Manual
Daytime fan-aspirated radiation shield kit for vantage pro & vantage pro plus stations
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D ay t i me Fa n - As pi r ated
Radiation Shield Kit
Installation Manual
for Vantage Pro & Vantage Pro Plus Stations
Introduction
These instructions describe how to upgrade a non-aspirated Vantage Pro radiation shield
to a Daytime Fan-Aspirated Radiation Shield. The upgrade kit can be installed on any
®
Vantage Pro
or Vantage Pro Plus Integrated Sensor Suite (ISS) equipped with a
round-plate non-aspirated, radiation shield. The round-plate non-aspirated radiation
shield replaced the previous square-plate shield at the beginning of 2003.
Note: The Daytime Fan-Aspirated Radiation Shield Kit can only be installed on round-plate non-aspirated
radiation shields.
Components
The upgrade kit includes the items shown in "Figure 1" and "Figure 2".
Closed Cap Plate
Open Cap Plate
Open Plate
Fan Unit
Fan Plate
Figure 1. Daytime Fan Kit Components
Solar Panel &
Mounting Bracket
Product # 7745
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Summary of Contents for Davis Instruments Fan-Aspirated Radiation Shield
- Page 1 Vantage Pro & Vantage Pro Plus Stations Introduction These instructions describe how to upgrade a non-aspirated Vantage Pro radiation shield to a Daytime Fan-Aspirated Radiation Shield. The upgrade kit can be installed on any ® Vantage Pro or Vantage Pro Plus Integrated Sensor Suite (ISS) equipped with a round-plate non-aspirated, radiation shield.
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Page 2: Tools Needed
#8-32 x 3-1/4" Screws (3) #8 Split-Lock Washers (6) #8 Flat Washers (6) Tools Needed You may need some or all of the following tools and other items to complete the upgrade: • A medium Phillips-Head screwdriver • A medium slot-tip screwdriver Cabled ISS Only: •... - Page 3 Installing the Daytime Fan Kit Put Console in Setup Mode At your Vantage Pro console, press and hold the key to put the console in Setup Mode. This prevents the reception of erroneous data from the rain collector 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”...
- Page 4 Disassemble the Standard Radiation Shield Note: We recommend using a workbench or table to perform the following procedures. Turn the ISS upside down with the rain collector cone on the bottom. Disconnect the RAIN cable and, if present, disconnect the SUN and UV cables from the SIM. Wireless ISS Only: cable.
- Page 5 Route the RAIN cable behind the drain and out the hole near the drain. Figure 6. Route RAIN Cable Around Drain and through Hole Place the adhesive-backed cable tie mount next to the hole near the drain, and secure the cable with the small cable tie.
- Page 6 Assemble the Lower Section The top plate in the ISS radiation shield has a thick, insulating disk attached on the underside. Remove the two screws holding the insulating disk and discard the disk. Save the top plate for use in Step 3. Top Plate Remove the Temp/Hum sensor from the bottom plate.
- Page 7 Start building the lower section of the new radiation shield with the original bottom plate. Place the new Temp/Hum plate from Step 3 and two open plates on top of the bottom plate. Note: When stacking plates, make sure the screw bosses (holes) line up with each other.
- Page 8 Lower the Fan Plate onto the stack 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. Screw Boss Turn the screw a few times to engage the threaded insert in the bottom plate. Make sure the other screw bosses are aligned and then insert the other two 4”...
- Page 9 Install the Fan Unit Place the fan unit into the center of the fan plate. See Figure 14. Fan Unit Cabled ISS Only: console, we recommend you cut the power cable next to the connector module and discard the cable. Save the connector module for use in Steps 3 and 4. See Figure Plug the fan cable into the 3-pin connector on the connector module.
- Page 10 Tuck the cables behind the spacer as shown in Figure 15.. Figure 15. Clamp Power Cable and Solar Power Cable Secure the power cable and solar power cable to the fan plate using the cable clamp, #4 screw and washer included with the kit. Make sure the fan blades rotate in a counter-clockwise direction by taking the radiation shield assembly to an area exposed to sunlight or by shining a bright incandescent light on the solar panel.
- Page 11 Assemble the Upper Section Place the open cap plate (has hole in center) on top of the fan plate, then place the closed cap plate (no hole). See Figure 18. ‘ Upper Shield Assembly” on page 12. Place the solar panel bracket on top of the stack with the panel located near the hinge side of the SIM housing.
- Page 12 Lower the ISS base onto the stack so that the screw goes into the boss nearest the solar panel.Turn the screw a few times to engage the threads. Place a lock washer and washer on the other two 3 1/4” screws then insert them through the remaining two screw holes.
- Page 13 Re-Install the ISS Install the rain collector cone and turn the ISS upside down. Open the SIM cover and connect the TEMP/HUM and RAIN sensor cables. If installed on your station, connect cable for the UV and SUN sensors. Cable Routing Channels (press cables fully into channel) Optional RAIN...
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Page 14: Annual Maintenance
Refer to your Vantage Pro Console Manual for more information on setting and clearing weather variables. 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. -
Page 15: Troubleshooting
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. - Page 16 Rev B, January 16, 2004 Document: 07395.033 Product: 7745 Vantage Pro is a registered trademark of Davis Instruments Corp. This product is protected in the United States by Patent Number 6,247,360. 3465 Diablo Avenue, Hayward, CA 94545-2778 U.S.A. 510-732-9229 • Fax: 510-732-9188...
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