Davis Instruments 7747 Installation Manual Download

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Installing the Daytime Fan Kit

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

Summary of Contents for 7747

Page 1: ...tion 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...

Page 2: ...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...

Page 3: ...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 housi...

Page 4: ...tor 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...

Page 5: ...ime Fan Kit 5 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...

Page 6: ...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...

Page 7: ...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...

Page 8: ...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 Lif...

Page 9: ...s 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...

Page 10: ...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...

Page 11: ...oss 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 Humi...

Page 12: ...r 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 c...

Page 13: ...onsole 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 r...

Page 14: ...iencing 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 ca...

Page 15: ...Troubleshooting 15...

Page 16: ...se 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...