Summary of Contents for Campbell CM375
- Page 1 CM375 Portable 10-Meter Mast Revision: 8/10 C o p y r i g h t © 2 0 0 9 - 2 0 1 0 C a m p b e l l S c i e n t i f i c ,...
- Page 2 (12) months from date of shipment unless specified otherwise. Batteries have no warranty. Campbell Scientific, Inc.'s obligation under this warranty is limited to repairing or replacing (at Campbell Scientific, Inc.'s option) defective products. The customer shall assume all costs of removing, reinstalling, and shipping defective products to Campbell Scientific, Inc.
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Page 3: Table Of Contents
3. Maintenance ...............19 Figures 1-1. 21720 Tote ....................1 2.1-1. Assembled CM375 ................3 2.2-1. CM375 in Opened Tote................4 2.2-2. Mast Sections and Base................4 2.2-3. Mast Section 1 Oriented on Base ............5 2.2-4. Spikes Installation ................5 2.2-5. Coupler Installed in Top of Mast Section 1..........6 2.2-6. - Page 4 CM375 Table of Contents 2.4-8. Rope Racket Assists Assembly............16 2.4-9. Adjusting Cable through Wedge Clamp..........17 2.5-1. Raising the Mast ................17 2.5-2. Pole Level Ensures Vertical Mast............18 2.5-3. Adjusting Turnbuckles ..............18 2.5-4. Guy Cables with 100 lbs of Tension..........19...
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Page 5: Specifications
CM375 Portable 10-Meter Mast 1. Overview The CM375 is a corrosion-resistant 30-ft (10 m) mast for applications requiring a tall yet portable instrument mount. It consists of five 6-ft (2 m) galvanized pipes, a stainless-steel base, guy cables, 1 m crossarm and mount, and grounding kit. -
Page 6: Guy Duckbill Anchor Kits
CM375 Portable 10-Meter Mast 1.2 Guy Duckbill Anchor Kits A choice of duckbill anchor kits is offered for the CM375. The 19282 Guy Duckbill Standard Anchor Kit is for standard soils, and the 25699 Guy Duckbill Heavy Duty Anchor Kit is for aggressive soils. Aggressive soils have: •... -
Page 7: Site Selection
CM375 Portable 10-Meter Mast 2. CM375 Installation 2.1 Site Selection Select a site free from overhead power lines, and 100 feet (30 m) in any direction from trees, buildings and other obstructions (see Figure 2.1-1). FIGURE 2.1-1. Assembled CM375... -
Page 8: Assembling Mast Sections
Step 1: Remove mast sections and other bundled hardware from tote; unzip and loosen straps (see Figure 2.2-1). NOTE Sections are numbered for sequential assembly (see Figure 2.2-2). FIGURE 2.2-1. CM375 in Opened Tote PN 21669 crossarm-to- pole mounting kit contains the lightning... -
Page 9: Mast Section 1 Oriented On Base
CM375 Portable 10-Meter Mast Step 2: Place Section 1 at deployment location with base oriented, as shown in Figure 2.2-3 and mast pointing NORTH. A compass is included in the optional "Tensioning Kit" for your NOTE use. NORTH FIGURE 2.2-3. Mast Section 1 Oriented on Base Step 3: Use spikes provided (3 each) to anchor base to site (see Figure 2.2-4). -
Page 10: Coupler Installed In Top Of Mast Section 1
CM375 Portable 10-Meter Mast Step 4: Insert the Section 2 coupler into the top of Section 1 (see Figure 2.2-5). FIGURE 2.2-5. Coupler Installed in Top of Mast Section 1 Step 5: Secure joint with 2 flat washers, 2 lock washers and 2 bolts from the hardware bag (see Figure 2.2-6). -
Page 11: Mast Section 2 And Mast Section 3
CM375 Portable 10-Meter Mast Step 6: Assemble Section 3 to the top of Section 2 (see Figure 2.2-7). NOTE The BLACK tape around Section 2 is a reference (11 foot level) for optional sensor mounts. Collar Section 2 FIGURE 2.2-7. Mast Section 2 and Mast Section 3 Step 7: Remove the collars from Section 3 and place next to the mounting holes in Section 2 (see Figures 2.2-7 and 2.2-8). -
Page 12: Bottom Guy Kit
CM375 Portable 10-Meter Mast FIGURE 2.2-9. 21663 Bottom Guy Kit Step 9: Place ball end of each guy cable into its slot in the guy ring and place guy ring into coupler of Section 3 (see Figure 2.2-10). FIGURE 2.2-10. Guy Cable Inserted into Guy Ring NOTE Only one of the three cable ends is shown. -
Page 13: Mast Section 3 And Guy Ring/Collar Assembly
CM375 Portable 10-Meter Mast Step 10: Slide coupler into Section 2 mast and assemble collars, as shown in Figure 2.2-11. FIGURE 2.2-11. Mast Section 3 and Guy Ring/Collar Assembly Step 11: Slide coupler end of Section 4 into the top of Section 3, and secure with remaining components from hardware bag (see Figure 2.2-12). -
Page 14: Mast Section 5
CM375 Portable 10-Meter Mast Step 12: Remove collars from Section 5 (see Figure 2.2-13). Collar Collar FIGURE 2.2-13. Mast Section 5 Step 13: Slide mast into Section 4 and assemble collars, as shown in Figure 2.2-14. FIGURE 2.2-14. Mast Section 5 Installed in Mast Section 4... -
Page 15: Guy Kit
CM375 Portable 10-Meter Mast Step 14: Remove guy collar from 21661 guy kit (see Figure 2.2-15). FIGURE 2.2-15. 21661 Guy Kit Step 15: Place guy cable ball ends into guy ring and then slide ring down mast to collar (see Figure 2.2-16). -
Page 16: Lightning Rod Assembly And Mounting Instrumentation
CM375 Portable 10-Meter Mast 2.3 Lightning Rod Assembly and Mounting Instrumentation Step 1: Fit lightning rod assembly (from PN 21660) to top of Section 5 mast (see Figure 2.3-1). FIGURE 2.3-1. Lightning Rod Assembly Step 2: Place clamp onto top of mast Section 5 and tighten (see Figure 2.3-2). -
Page 17: Anchor Installation
CM375 Portable 10-Meter Mast 2.4 Anchor Installation FIGURE 2.4-1. Tape Measure in Slot for South Anchor Step 1: For the South anchor, place tape measure into slot in base centering tape within notch on edge of base. Measure to 20 ft (see Figure 2.4-1). -
Page 18: Anchor Driven Into Ground At 45° Angle
CM375 Portable 10-Meter Mast 45° FIGURE 2.4-3. Anchor Driven into Ground at 45° Angle Step 3: With a rod through the loop or metal ring, pull up on the cable or threaded rod until the anchor rotates and locks (see Figure 2.4-4). -
Page 19: Tape Measure In Slot For North East Anchor
CM375 Portable 10-Meter Mast Step 5: Repeat process for the NE (Figure 2.4-5) and NW anchors. FIGURE 2.4-5. Tape Measure in Slot for North East Anchor Step 6: Attach guy wires to anchors by first opening the turnbuckle to the widest setting. -
Page 20: Top And Bottom Guy Cables Fastened To An Anchor
CM375 Portable 10-Meter Mast Step 7: If using rope ratchet to assist assembly, set to 7 feet and attach to tension clamp on cable and to anchor end. Do this for both NE and NW anchors and top and bottom guy cables (see Figures 2.4-7 and 2.4-8). -
Page 21: Raise, Plumb Mast And Final Cable Tensioning
CM375 Portable 10-Meter Mast Step 8: Course adjustments to cable length are made by loosening screw clamp and then releasing wedge with a blade screwdriver (see Figure 2.4-9). This allows the cable to be adjusted through the wedge clamp. NOTE Retighten screw when adjustment is complete. -
Page 22: Pole Level Ensures Vertical Mast
CM375 Portable 10-Meter Mast Step 2: Attach SOUTH cables to anchor. While first person holds mast and uses a pole level, the second person adjusts each of the bottom guy cable wedge clamps, maintaining level in all directions (see Figure 2.5-2). The rope ratchet can be used to temporarily remove the load from the wedge assembly during wedge adjustments. -
Page 23: Maintenance
CM375 Portable 10-Meter Mast Step 5: Adjust each cable turnbuckle to maintain plumb and increase cable tension. A deflection of 3 inches when using a 4.4 pound (2N) perpendicular force, 68 inches from the duckbill anchor loop equates to 100 pounds of tension in the cables (see Figure 2.5-4). - Page 24 CM375 Portable 10-Meter Mast...
- Page 26 Campbell Scientific Companies Campbell Scientific, Inc. (CSI) 815 West 1800 North Logan, Utah 84321 UNITED STATES www.campbellsci.com • info@campbellsci.com Campbell Scientific Africa Pty. Ltd. (CSAf) PO Box 2450 Somerset West 7129 SOUTH AFRICA www.csafrica.co.za • cleroux@csafrica.co.za Campbell Scientific Australia Pty. Ltd. (CSA)