260-953 Alter-Type Wind Screen for Tipping Bucket Rain Gages Revision: 1/12 C o p y r i g h t © 2 0 1 0 - 2 0 1 2 C a m p b e l l S c i e n t i f i c , I n c .
Warranty “PRODUCTS MANUFACTURED BY CAMPBELL SCIENTIFIC, INC. are warranted by Campbell Scientific, Inc. (“Campbell”) to be free from defects in materials and workmanship under normal use and service for twelve (12) months from date of shipment unless otherwise specified in the corresponding Campbell pricelist or product manual. Products not manufactured, but that are re-sold by Campbell, are warranted only to the limits extended by the original manufacturer.
Assistance Products may not be returned without prior authorization. The following contact information is for US and international customers residing in countries served by Campbell Scientific, Inc. directly. Affiliate companies handle repairs for customers within their territories. Please visit www.campbellsci.com to determine which Campbell Scientific company serves your country. To obtain a Returned Materials Authorization (RMA), contact CAMPBELL SCIENTIFIC, INC., phone (435) 227-2342.
260-953 Table of Contents PDF viewers: These page numbers refer to the printed version of this document. Use the PDF reader bookmarks tab for links to specific sections. 1. Introduction..................................................................1 2. Specifications ..............................................................1 3. Installation....................................................................2 3.1 3.2 3.3 3.4 3.5 Site Considerations ..................................................
260-953 Alter-Type Wind Screen for Tipping Bucket Rain Gages 1. Introduction The 260-953 is a wind screen for our tipping bucket rain gages that can minimize the effect of strong winds on the rain measurements. It includes 32 leaves that swing as the wind moves past them. The leaves are evenly spaced on a 48-in.-diameter ring. The ring is comprised of four quadrants. Each quadrant mounts onto posts made of galvanized-steel pipe.
260-953 Alter-Type Wind Screen for Tipping Bucket Rain Gages 3. Installation The tipping bucket rain gage is typically installed before the wind screen (refer to the rain gage’s manual for installation procedures). 3.1 Site Considerations The foundation size must be at least 4 ft x 4 ft if the same concrete or wooden foundation is used for both the wind screen and tipping bucket rain gage (see Figure 3-1). A larger area may be desirable to more easily access the wind screen and tipping bucket rain gage.
260-953 Alter-Type Wind Screen for Tipping Bucket Rain Gages NOTES: 1. Typical of three quadrants. 2. Gate quadrant has left vertical rod that is 2” shorter. FIGURE 3-2. Leaf and spacer assembly 3.3 Posts Spacing between the wind screen posts is 34 in. (see Figure 3-1). If a concrete foundation is used, the posts can be directly embedded into the concrete. To ensure the proper height, assemble the wind screen (see Section 3.2) and temporarily install it at its desired location.
260-953 Alter-Type Wind Screen for Tipping Bucket Rain Gages Each post has a 3/4-in. NPT thread at one end (see Figure 3-4). If the posts are to be directly embedded into the concrete, use a floor flange on the end of each post as an anchor to help prevent it from pulling out of the concrete. Short pieces of pipe with threaded couplers may also be embedded into the concrete, allowing the posts to be threaded directly into the concrete. The posts should be leveled vertically during installation. 3.
260-953 Alter-Type Wind Screen for Tipping Bucket Rain Gages 4. Maintenance Refer to your tipping bucket rain gage manual for tipping bucket rain gage maintenance. CAUTION Avoid brushing against the wind screen leaves while servicing the rain gage. Removal of the wind screen while servicing the rain gage can help avoid injuries caused by the leaves’ sharp edges. Use leather gloves while handling the wind screen.
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