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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 , I n c .

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Summary of Contents for 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 I n c ...

Page 2: ...nal 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 435 753 2342 After an applications engineer determines the n...

Page 3: ...st Section 2 and Mast Section 3 7 2 2 8 Guy Ring Mast Section 2 and Mast Section 3 7 2 2 9 21663 Bottom Guy Kit 8 2 2 10 Guy Cable Inserted into Guy Ring 8 2 2 11 Mast Section 3 and Guy Ring Collar Assembly 9 2 2 12 Mast Section 4 Ready to be Installed in Mast Section 3 9 2 2 13 Mast Section 5 10 2 2 14 Mast Section 5 Installed in Mast Section 4 10 2 2 15 21661 Guy Kit 11 2 2 16 Mast Section 5 and...

Page 4: ...i 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 ...

Page 5: ...adius 20 ft 6 m to each of three guy points 120 degrees apart Guy Configuration three guy cables at two levels guyed at 12 ft 3 6 m and at 24 ft 7 2 m Recommended Guy Wire Pretension 100 lbs each check and adjust guy wire tension at least once a month and after wind gusts exceeding 50 mph Maximum Weight of Mounted Equipment 75 lbs 34 kg Maximum Allowable Wind Gust1 85 mph 136 km h 1 The wind gust ...

Page 6: ...ity of less than 3000 ohm cm pH of less than 5 Chloride of greater than 1000 ppm Sulfate of greater than 500 ppm Poor aeration Both the 19282 and 25699 have one drive rod The 19282 also has four duckbill anchors with a cable attached to each of them At the end of the cable is a loop for connecting the guy wires The 25699 has a threaded rod attached to each of the four duckbill anchors instead of t...

Page 7: ...eter 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 3 ...

Page 8: ... from tote unzip and loosen straps see Figure 2 2 1 Sections are numbered for sequential assembly see Figure 2 2 2 NOTE FIGURE 2 2 1 CM375 in Opened Tote PN 21669 crossarm to pole mounting kit contains the lightning rod copper grounding rod and duckbill anchor drive rod Base FIGURE 2 2 2 Mast Sections and Base 4 ...

Page 9: ...d as shown in Figure 2 2 3 and mast pointing NORTH A compass is included in the optional Tensioning Kit for your use NOTE 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 NORTH Spikes FIGURE 2 2 4 Spikes Installation 5 ...

Page 10: ...n 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 FIGURE 2 2 6 Bag Containing Hardware 6 ...

Page 11: ...r mounts NOTE 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 Collar Guy Ring Section 2 Section 3 Collar FIGURE 2 2 8 Guy Ring Mast Section 2 and Mast Section 3 Step 8 Remove guy ring from bottom guy kit PN 21663 see Figures 2 2 8 and 2 2 9 7 ...

Page 12: ...63 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 Only one of the three cable ends is shown NOTE 8 ...

Page 13: ... 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 Section 3 Coupler FIGURE 2 2 12 Mast Section 4 Ready to be Installed in Mast Section 3 9 ...

Page 14: ... 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 10 ...

Page 15: ...e 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 FIGURE 2 2 16 Mast Section 5 and Guy Ring Collar Assembly 11 ...

Page 16: ... 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 Step 3 Insert rod into clamp and tighten see Figure 2 3 2 FIGURE 2 3 2 Installed Lightning Rod Step 4 Assemble enclosures sensors and tie cables to mast as required 12 ...

Page 17: ...Figure 2 4 1 Step 2 At 20 ft install the duckbill anchor with drive rod see Figure 2 4 2 The anchor needs to be driven into the ground at a 45 angle see Figure 2 4 3 Drive anchor until the loop or metal ring is several inches above the ground Rod Anchor Anchor Cable FIGURE 2 4 2 19282 Duckbill Anchor and Cable Assembly left The 25699 has a threaded rod instead of the cable The drive rod right is u...

Page 18: ...t 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 Anchor FIGURE 2 4 4 Locking Anchor Step 4 Fill in the hole around the cable or threaded rod with loose dirt and tamp firm 14 ...

Page 19: ...st Anchor Step 6 Attach guy wires to anchors by first opening the turnbuckle to the widest setting Attach turnbuckle to wedge end of the guy cable and then attach the other end of the turnbuckle to an anchor see Figure 2 4 6 Open turnbuckle to widest setting Anchor Guy Cable Wedge FIGURE 2 4 6 Turnbuckle Fastened to Guy Cable and Anchor 15 ...

Page 20: ...ttach 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 Do not connect the SOUTH cables at this time NOTE FIGURE 2 4 7 Top and Bottom Guy Cables Fastened to an Anchor FIGURE 2 4 8 Rope Racket Assists Assembly 16 ...

Page 21: ...edge clamp Retighten screw when adjustment is complete NOTE FIGURE 2 4 9 Adjusting Cable through Wedge Clamp 2 5 Raise Plumb Mast and Final Cable Tensioning Step 1 With NW and NE cables attached to anchors have one person lift mast while another person pulls on the SOUTH cables to bring mast to an upright position see Figure 2 5 1 If using rope ratchets adjust them to allow further steps FIGURE 2 ...

Page 22: ...intaining 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 FIGURE 2 5 2 Pole Level Ensures Vertical Mast Step 3 Repeat process with the top guy cables to establish a straight mast Step 4 Apply further tensioning using the turnbuckles see Figure 2 5 3 FIGURE 2 5 3 Adjusting Turnbuckles 18 ...

Page 23: ...icular force 68 inches from the duckbill anchor loop equates to 100 pounds of tension in the cables see Figure 2 5 4 FIGURE 2 5 4 Guy Cables with 100 lbs of Tension Step 6 After tensioning the top guy cables recheck the bottom guy cables Adjust as necessary 3 Maintenance Check and adjust guy cable tension at least once a month and after wind gusts exceeding 50 mph 19 ...

Page 24: ...CM375 Portable 10 Meter Mast 20 ...

Page 25: ......

Page 26: ...rp CSC 11564 149th Street NW Edmonton Alberta T5M 1W7 CANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientific Centro Caribe S A CSCC 300 N Cementerio Edificio Breller Santo Domingo Heredia 40305 COSTA RICA www campbellsci cc info campbellsci cc Campbell Scientific Ltd CSL Campbell Park 80 Hathern Road Shepshed Loughborough LE12 9GX UNITED KINGDOM www campbellsci co uk sales campbe...

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