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Instruction Manual
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F a n - A s p i r a t e d I S S R e t r o f it K i t
I ns t a l la t io n I n s t r u c t io n s
These instructions describe how to install the Vantage Pro
Integrated Sensor Suite (ISS) Retrofit Kit.
This retrofit kit applies to all cabled and wireless versions of the fan-aspirated
ISS.
Components
The Fan-Aspirated ISS Retrofit Kit includes the following components:
• Externally-mounted SIM with housing
• Temperature/Humidity sensor module
• Rain Collector cable extension
• New SIM Power cable
• Splice kit to attach extension cables
• Mounting hardware for new SIM housing
Tools for Setup
In addition to the kit, you will need the following tools:
• Small Phillips-head screwdriver
• Pliers or other crimping tool
• Other hand tools depending on your installation
Tip: If your Wireless Fan-Aspirated ISS has been in service for over a year, this would
be a good opportunity to replace the C-cell batteries used by the fan.
Installation Outline
Early version of the fan-aspirated ISS mounted the sensor interface module
internally inside the radiation shield. Newer versions of the fan-aspirated ISS
mount the SIM module in an external housing. The installation procedure for
the two different versions are outlined separately below.
CAUTION: Please work on your Vantage Pro ISS in a safe place. We strongly recommend
that you remove the ISS from its installed position before beginning these steps.
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E s t im a t e d Ti m e R eq u ir e d : 6 0 M i n ut es
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Fan-Aspirated
Product # 6921, 6921C
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Summary of Contents for DAVIS VANTAGE PRO ISS Retrofit Kit
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Page 1: Tools For Setup
® ™ A N T A G E A N D A N T A G E L U S F a n - A s p i r a t e d I S S R e t r o f it K i t I ns t a l la t io n I n s t r u c t io n s E s t im a t e d Ti m e R eq u ir e d : 6 0 M i n ut es ®... - Page 2 10. Test Communication between the ISS and the console. 11. Mount the ISS and the SIM Housing. 12. Return the old SIM to Davis. ISS With Externally Mounted SIM These are the procedures required to install the Fan-Aspirated ISS Retrofit Kit in an ISS that has the SIM mounted in an external housing.
- Page 3 I n s t a l l a t i o n - I S S w i t h I n t e r n a l S I M Use these procedures to install the retrofit kit on an ISS that has the SIM mounted inside the radiation shield.
- Page 4 Locate the SIM inside the upper section of the radiation shield. Sensor Interface Module (SIM) Solar Power Cable (wireless models only) Sensor Interface Cable Disconnect the WIND sensor (anemometer) cable. If you have a cabled station, you will also need to disconnect the Console cable from the SIM.
- Page 5 The SIM transmitter board, dust cover, and rear cover plate (not shown) are attached to the top radiation shield plate using 4 screws. Unfasten these screws and remove the dust cover along with the board and mounting plate. Remove the SIM power cable, solar panel cable and the Sensor Interface Cable from the junction board located in the lower section of the radiation shield.
- Page 6 Install the new Temp/Hum module, being sure to set the sensor cable in the cable channel in the fan plate. The new Temp/Hum module cable will plug directly into the SIM instead of the junction board. Reinstall the fan and fan deflector. The new SIM power cable has a brown terminal at one end and a white termi- nal at the other end.
- Page 7 Install the Junction Board cover as shown above. The cover installs easily by pressing it into place. Slide the two sections of the Radiation Shield completely together. Fasten the two sections together using the 3 flat washers, lock washers, and wing nuts.
- Page 8 Take the same colored wire from the other cable and place it into the other hole at the end of the splice connector. Make sure you push the wire all the way in. You can check this by looking through the clear side of the splice connector. Using Splice Connector Use pliers to snap the cap into place, securing the wires.
- Page 9 Refer to the ISS SIM Connections illustration and connect only the sensor cables as shown. You will connect the power cables in the next procedure. 3-Volt Lithium Battery (wireless models only) Transmitter ID Switches SUN RAIN WIND TEMP SUN RAIN WIND SIM Power Cable (wireless only) UV Sensor Cable...
- Page 10 Powering the Wireless ISS SIM Wireless versions of the ISS receive most of their power from the solar panel installed next to the rain collector. Backup power is provided by a 3-volt lithium battery. Console Cable Connector Battery Holder (Cabled Only) (Wireless Only) 1 2 3 4 DIP Switch #4...
- Page 11 1/4" x 1-1/2" Lag Screws Setup Mode on the con- sole by pressing and holding the DONE key. Return the old transmit- ter board to Davis Instru- ments in the new board’s shipping box. Use the U-Bolts included return ship- ping label.
- Page 12 Procedure 12. Return the Old SIM to Davis Please return the old SIM and SIM housing (if you have one), in the Fan- Aspirated ISS Retrofit Kit shipping box. Include the shipping paperwork you received with the Retrofit Kit. Ship to:...
- Page 13 I n s t a l l a t i o n - I S S w i t h E x t e r n a l S I M Use these steps to install the retrofit kit on an ISS that has the SIM mounted externally in the SIM housing.
- Page 14 Remove the cardboard packing insert and discard. 1" Screws (3) Lock Washers Flat Washers Rain Collector Base Mounting Bracket AC MODELS Sensor Cable Mounting Bracket with Solar Panel SOLAR MODELS Sensor Cable Power Cable Power Radiation Shield Cable Removing the Rain Collector Base Remove the three (3) screws connecting the mounting bracket to the radia- tion shield.
- Page 15 Remove the top two (2) radiation shield plates to expose the fan plate and junction board. 2" Screws (3) Lock Washers Flat Washers Mounting Bracket Mounting SOLAR MODELS Bracket AC MODELS Solar Power Closed Plate Cable (no hole in center) SOLAR MODELS Open Plate (hole in center)
- Page 16 Procedure 3. Mount the new Temp/Hum module Remove the Fan from the lower section of the radiation shield. Fan Unit Motor Connector Fan Deflector Temp/Hum Sensor Cable Channel Junction Boar Temp/Hum Sensor Fan Plat Cable Fan Removal and Installation Remove the old Temp/Hum module from the radiation shield and replace with the new Temp/Hum module.
- Page 17 Procedure 4. Re-assemble the Radiation Shield Refer to the disassembly drawings shown in Step 2 to re-assemble the Radiation Shield. Make sure the Temp/Hum sensor cable runs through the cable channel molded into the fan plate. Install the Junction Board Cover as shown in the illustration. The Junction Board Cover should press easily into the place.
- Page 18 Procedure 6. Connect Sensor Cables to the New SIM. The ISS sensors are connected by cables to the Sensor Interface Module (SIM), located inside the new SIM housing. The SIM contains electronics that measure and store weather values for transmission to the console via cable or radio. The SIM housing protects the SIM from the elements and provides easy access to SIM cable connections.
- Page 19 Cabled ISS: run the console cable through this second grommet. Install the first grommet in the left slot in the SIM housing, and install the second grommet in the right slot, adjusting the inside cable lengths as needed for a tidy installation. Refer to the ISS SIM Connections illustration and connect only the sensor cables as shown.
- Page 20 When you have finished mounting the ISS, exit Setup Mode on the console by pressing and holding the DONE key. Return the old transmitter board to Davis Instruments in the new board’s shipping box. Use the included return shipping label.
- Page 21 1/4" Flat Washers 1/4" Lock Washers 1/4" x 1-1/2" Lag Screws U-Bolts Installation Outline Page 21...
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Page 22: Troubleshooting
3465 Diablo Ave. Hayward, CA 94545 Troubleshooting Please contact Davis Technical Support if you have any questions or if you encounter problems installing the Fan-Aspirated ISS Retrofit Kit Retrofit Kit. Contacting Davis Instruments (510) 732-7814 for Technical Support, Monday – Friday, 7:00 a.m. – 5:30 p.m. - Page 23 Troubleshooting Page 23...
- Page 24 • Consult the dealer or an experienced radio/TV technician for help. Changes or modifications not expressly approved in writing by Davis Instruments may void the user’s authority to operate this equipment. Product Numbers: 6921, 6921C Davis Instruments Part Number: 7395.132...