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Davis Instruments Rain Collector Heater Installation Manual

Davis rain collector heater weather-accessories: install guide
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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.
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Product #7720

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Summary of Contents for Davis Instruments Rain Collector Heater

  • Page 1 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.
  • Page 2 OMPONENTS The Rain Collector Heater includes the following components. Please make sure you have all listed components before continuing. ✦ Heater Assembly Includes heater element, thermostat, and terminal block for power cable. ✦ Wall Transformer with Power Unit ✦ Insulation Blanket ✦...
  • Page 3: Tools And Materials Needed For Installation

    Cable Clips or Weather-Resistant Cable Ties Choosing Cable for the Rain Collector Heater The Rain Collector Heater comes with a 50-foot (15 m) length of 22 gauge, two twisted-pair cable. When using this cable, the red and white wires are joined and used as one wire and the two black wires are joined and used as one wire.
  • Page 4 Rain Collector. 2. If screw holes for the Rain Collector Heater are not already present in the base, posi- tion the heater as shown below (at the edge of the Davis logo imprinted on the base with the terminal block facing away from the bucket) and mark the location of the screw holes on the heater assembly.
  • Page 5 Note: Non-Vantage Pro Rain Collectors consist of Rain Collectors used with all Weather Wizard III, Weather Monitor II, GroWeather, Health Enviromonitor and Energy Enviromonitor Weather Stations. Installing the Rain Collector Heater Terminal Block Rain Collector Heater Terminal Block Page 5...
  • Page 6 10. If using the provided cable, twist the Red & White wires together to create a single wire and twist the two Black wires together to create a single wire. The bare wire may simply be cut off. Page 6 #4 x 3/8" Self-tapping Screws Heater Assembly Knock-out Hole for Heater Cable Rain Collector Heater...
  • Page 7 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 Rain Collector Heater Terminal Block Attaching cables to Terminal Block of Vantage Pro Rain Collector Heater...
  • Page 8 You may want to cut off the excess cable tie. 14. Re-attach (or attach) the Rain Collector to the mounting surface. Page 8 Securing Cable to Heater Assembly Providing Strain Relief Rain Collector Heater...
  • Page 9 Installing the Insulation Blanket 1. Fit the insulation blanket against the side of the Rain Collector cone, pushing it as far inside the cone as it will go. If fully inserted correctly, the blanket should extend all the way to the top of the cone, leaving a space of approximately 5/16”...
  • Page 10 You may need to cut off the excess cable tie in order to close the power unit. 8. Replace the base of the power unit. Page 10 Power Unit terminal Block Providing Strain Relief Rain Collector Heater...
  • Page 11 “ON,” the indicator light on the power unit is also on. Note: The Rain Collector Heater warms only the inside of the Rain Collector and the cone. For some weather conditions it may be necessary to add a lamp or heater beneath the unit to keep the drains open.
  • Page 12 Rain Collector Heater 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 94545-2778 510-732-9229 • Fax: 510-732-9188 E-mail: info@davisnet.com • www.davisnet.com...

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