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Campbell Scientific 260-953 Alter-Type Wind Screen Owner Manual
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Campbell Scientific 260-953 is a wind screen designed to minimize the impact of strong winds on rain measurements. It features 32 zinc-plated steel leaves spaced evenly on a 48-inch diameter ring, mounted on four galvanized steel posts. With an installed height of 2 or 3 feet, it helps ensure accurate rain measurements by reducing wind-induced errors. Installation is straightforward, requiring a foundation or support structure and some assembly. Maintenance involves keeping the area clear of weeds and debris, and occasionally inspecting the leaves for free movement.
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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. Batteries, fine-wire thermocouples, desiccant, and other consumables have no warranty. Campbell's obligation under this warranty is limited to repairing or replacing (at Campbell's option) defective products, which shall be the sole and exclusive remedy under this warranty. The customer shall assume all costs of removing, reinstalling, and shipping defective products to Campbell. Campbell will return such products by surface carrier prepaid within the continental United States of America. To all other locations, Campbell will return such products best way CIP (Port of Entry)
INCOTERM® 2010, prepaid. This warranty shall not apply to any products which have been subjected to modification, misuse, neglect, improper service, accidents of nature, or shipping damage. This warranty is in lieu of all other warranties, expressed or implied. The warranty for installation services performed by Campbell such as programming to customer specifications, electrical connections to products manufactured by Campbell, and product specific training, is part of Campbell’s product warranty. CAMPBELL
EXPRESSLY DISCLAIMS AND EXCLUDES ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. Campbell is not liable for any special, indirect, incidental, and/or consequential damages.”
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. After an applications engineer determines the nature of the problem, an RMA number will be issued. Please write this number clearly on the outside of the shipping container. Campbell
Scientific's shipping address is:
CAMPBELL SCIENTIFIC, INC.
RMA#_____
815 West 1800 North
Logan, Utah 84321-1784
For all returns, the customer must fill out a "Statement of Product Cleanliness and Decontamination" form and comply with the requirements specified in it.
The form is available from our web site at www.campbellsci.com/repair . A completed form must be either emailed to [email protected]
or faxed to
(435) 227-9579. Campbell Scientific is unable to process any returns until we receive this form. If the form is not received within three days of product receipt or is incomplete, the product will be returned to the customer at the customer's expense. Campbell Scientific reserves the right to refuse service on products that were exposed to contaminants that may cause health or safety concerns for our employees.
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 Site Considerations ...................................................................................2
3.2 Ring Assembly..........................................................................................2
3.3 Posts..........................................................................................................3
3.4 Gate...........................................................................................................4
3.5 Mounting the Ring Quadrants onto the Posts ...........................................4
4. Maintenance .................................................................5
Figures
3-1. Foundation size and post placement........................................................2
3-2. Leaf and spacer assembly........................................................................3
3-3. Properly installed 260-953 ......................................................................3
3-4. Gate quadrant mounted onto posts ..........................................................4 i
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.
The 260-953 should be installed so that the top edge of the rain gage funnel is
1/2 in. to 1 in. below the top edge of the wind screen leaves. Typically, the wind screen is mounted onto the concrete pad that also supports the rain gage.
However, concrete piers or wooden supports can also be used. To function properly, both the rain gage and wind screen need to be installed correctly.
2. Specifications
Type: Alter
Manufacturer: Novalynx
Leaves
Number: 32
Material: Zinc-plated 20-gauge steel
Width: 3 in. (7.6 cm)
Length: 16 in. (40.6 cm)
Posts
Number: Four
Length: 2 ft (0.6 m)
Material: Galvanized steel
Ring Installed Diameter: 4 ft (1.2 m)
Spacers: 3/4–in. EMT
Installed Height: 2 ft (0.6 m) without leg extensions or 3 ft (0.9 m) with leg extensions
Shipping Weight: 45 lb (20.4 kg)
1
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.
2
FIGURE 3-1. Foundation size and post placement
Sites where there is open ground between the wind screen and the rain gage should be cleared of weeds or grass. A gravel path is recommended to permit access to the rain gage during wet conditions.
3.2 Ring Assembly
On each ring quadrant, alternate the wind screen leaves and spacers as shown in Figure 3-2. The leaves should be installed so that the flat sides of the leaves will face the rain gage.
CAUTION The wind screen leaves have very sharp edges. Use leather gloves while handling the leaves, and avoid brushing against them.
260-953 Alter-Type Wind Screen for Tipping Bucket Rain Gages
3.3 Posts
NOTES:
1. Typical of three quadrants.
2. Gate quadrant has left vertical rod that is 2” shorter.
FIGURE 3-2. Leaf and spacer assembly
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. If the posts are too short to obtain the correct height (1/2 in. to 1 in. above rain gage), use pipe couplings and extension pipes to increase the height (see Figure 3-3).
NOTES:
1. Rain gage shown in bold lines.
2. Cutaway shows spacing between top of wind screen and top of rain gage.
FIGURE 3-3. Properly installed 260-953
3
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.
3.4 Gate
One of the posts has a 45º notch cut out of it. This post is for the wind screen gate (see Figure 3-4), which is used to access the tipping bucket rain gage.
Plan the installation so that the gate is at the desired location for accessing the rain gage.
4
FIGURE 3-4. Gate quadrant mounted onto posts
3.5 Mounting the Ring Quadrants onto the Posts
Two people typically are required to lift the ring quadrants and place them onto the posts. Each end of the ring quadrant has a rod. These rods fit into the short pieces of pipe that are welded onto the posts (see Figure 3-4). The gate quadrant has a shorter rod that fits into the post with a 45º notch (see Figure
3-4).
The posts may need to be flexed slightly to fit the ring quadrants. After the ring quadrants have been installed, inspect each leaf to ensure that it can swing freely.
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.
Keep weeds, grass, and other plants from growing into and interfering with the rain gage and wind screen leaves. Remove any debris and dirt that may have accumulated onto the surfaces of the leaves.
Inspect the wind screen parts for rust, and wire brush rusted areas.
NOTE The wind screen components can be spray painted or cold galvanized to help prevent rust.
Check the posts and flanges for loose mounting hardware.
5
260-953 Alter-Type Wind Screen for Tipping Bucket Rain Gages
6
Campbell Scientific Companies
Campbell Scientific, Inc. (CSI)
815 West 1800 North
Logan, Utah 84321
UNITED STATES www.campbellsci.com • [email protected]
Campbell Scientific Africa Pty. Ltd. (CSAf)
PO Box 2450
Somerset West 7129
SOUTH AFRICA www.csafrica.co.za • [email protected]
Campbell Scientific Australia Pty. Ltd. (CSA)
PO Box 444
Thuringowa Central
QLD 4812 AUSTRALIA www.campbellsci.com.au • [email protected]
Campbell Scientific do Brazil Ltda. (CSB)
Rua Luisa Crapsi Orsi, 15 Butantã
CEP: 005543-000 São Paulo SP BRAZIL www.campbellsci.com.br • [email protected]
Campbell Scientific Canada Corp. (CSC)
11564 - 149th Street NW
Edmonton, Alberta T5M 1W7
CANADA www.campbellsci.ca • [email protected]
Campbell Scientific Centro Caribe S.A. (CSCC)
300 N Cementerio, Edificio Breller
Santo Domingo, Heredia 40305
COSTA RICA www.campbellsci.cc • [email protected]
Campbell Scientific Ltd. (CSL)
Campbell Park
80 Hathern Road
Shepshed, Loughborough LE12 9GX
UNITED KINGDOM www.campbellsci.co.uk • [email protected]
Campbell Scientific Ltd. (France)
3 Avenue de la Division Leclerc
92160 ANTONY
FRANCE www.campbellsci.fr • [email protected]
Campbell Scientific Spain, S. L.
Avda. Pompeu Fabra 7-9, local 1
08024 Barcelona
SPAIN www.campbellsci.es • [email protected]
Please visit www.campbellsci.com to obtain contact information for your local US or International representative.
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Questions and Answers
What is the purpose of the Campbell Scientific 260-953?
How many leaves does the wind screen have?
How tall is the wind screen when installed?
What is the recommended distance between the wind screen posts?
What is the purpose of the gate on the wind screen?
How often should the wind screen be inspected?
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Table of contents
- 1 Revision and Copyright Information
- 3 Warranty
- 4 Assistance
- 5 Table of Contents
- 7 260-953 Alter-Type Wind Screen for Tipping Bucket Rain Gages
- 7 1. Introduction
- 7 2. Specifications
- 8 3. Installation
- 8 3.1 Site Considerations
- 8 3.2 Ring Assembly
- 9 3.3 Posts
- 10 3.4 Gate
- 10 3.5 Mounting the Ring Quadrants onto the Posts
- 11 4. Maintenance
- 14 Campbell Scientific Contact Information