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Product #7720

 

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The Rain Collector Heater may be used to protect the Rain Collector’s internal 
components from freezing and/or to measure the moisture content of snowfall.  
When the heater is on, it is capable of melting snow at a rate of 1/4” (6 mm) of 
liquid precipitation per hour.  It may not be able to keep up with larger rates of 
snowfall.  

The Rain Collector Heater warms only the inside of the Rain Collector and the 
cone itself.  For some weather conditions, it may be necessary to add a lamp or 
heater beneath the unit to keep the drains open.

Please note that we have made every attempt to design and manufacture a safe 
product, but Davis Instruments assumes no liability for any injury or damage 
caused directly or indirectly by the installation or use of this product.

 

CAUTION:

 

Although the nominal heater voltage is not hazardous, a short in the wall transformer could 
cause hazardous voltage to appear on the heater wires. For safety, you should always turn the 
heater’s power unit to the “OFF” position before removing the Rain Collector’s cone. We also 

 

recommend that you unplug the wall transformer before removing the Rain Collector’s cone.

 

This instruction manual is designed to take you step-by-step through the pro-
cess required to install and use your Rain Collector Heater. Please take the time 
to read through this manual before beginning the process.

Summary of Contents for Rain Collector

Page 1: ...t we have made every attempt to design and manufacture a safe product but Davis Instruments assumes no liability for any injury or damage caused directly or indirectly by the installation or use of th...

Page 2: ...all Transformer with Power Unit Insulation Blanket 50 15 meter Heater Cable Installation Hardware Kit Two Tie Wraps Two 6 32 x 3 4 Screws Two 6 32 Hex Nuts Two 6 32 Split Lock Washers One 8 x 3 8 Scre...

Page 3: ...You may use 22 gauge two twisted pair wire in this manner for cable lengths up to 120 feet 36 m If you want to use single pair cable use the following table to determine the minimum wire size for the...

Page 4: ...ted on the base with the terminal block facing away from the bucket and mark the location of the screw holes on the heater assembly Earlier versions of the Rain Collector did not come with built in ho...

Page 5: ...in Collectors secure the heater assembly to the Rain Collector base using the 6 32 x 3 4 19 mm screws a lock washer and a hex nut as shown below Securing the heater in a Non Vantage Pro Rain Collector...

Page 6: ...head screwdriver to knock out the hole for the heater s power cable 9 Pass the heater cable wires up through the cable hole you just drilled non Vantage Pro Rain Collector or knocked out Vantage Pro R...

Page 7: ...a screw head on the terminal block as shown below It does not matter which wire goes to each screw as long as only one wire goes to each screw Attaching cables to Terminal Block of Non Vantage Pro Ra...

Page 8: ...ter assembly as shown below Securing Cable to Heater Assembly 13 To provide strain relief for the cable place a cable tie around the cable just above the hole through which this cable is running as sh...

Page 9: ...o that it does not whip about in the wind Use cable clips or weather resistant cable ties to secure the cable underneath the eaves of your house building or in a location similarly shielded from rain...

Page 10: ...d to ground if you wish to make use of the shield in the cable 6 Bend each bare wire into a U shape and secure under a screw head on the terminal block as shown below It does not matter which wire goe...

Page 11: ...snow at a rate of 1 4 6 mm of liquid precipitation per hour It may not be able to keep up with larger rates of snowfall When the Rain Collector Heater is set to ON the indicator light on the power un...

Page 12: ...Rev D Manual 8 6 01 This product complies with the essential protection requirements of the EC EMC Directive 89 336 EC Davis Instruments Corp 2001 All rights reserved 3465 Diablo Avenue Hayward CA 94...

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