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Campbell CM375 Instruction Manual

Manual is about: Portable 10-Meter Mast

Summary of 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: Warranty and Assistance

    Warranty and assistance the cm375 portable 10-meter mast is warranted by campbell scientific, inc. To be free from defects in materials and workmanship under normal use and service for twelve (12) months from date of shipment unless specified otherwise. Batteries have no warranty. Campbell scientifi...

  • Page 3: Cm375 Table of Contents

    Cm375 table of contents pdf viewers note: these page numbers refer to the printed version of this document. Use the adobe acrobat® bookmarks tab for links to specific sections. 1. Overview.......................................................................1 1.1 specifications........................

  • Page 4

    Cm375 table of contents ii 2.4-8. Rope racket assists assembly.......................................................... 16 2.4-9. Adjusting cable through wedge clamp............................................ 17 2.5-1. Raising the mast .................................................................

  • Page 5: Cm375 Portable 10-Meter Mast

    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. Duckbill anch...

  • Page 6

    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: • resistivity of les...

  • Page 7: 2.  Cm375 Installation

    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 3.

  • Page 8

    Cm375 portable 10-meter mast 2.2 assembling mast sections step 1: remove mast sections and other bundled hardware 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- pol...

  • Page 9

    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 use. Note north figure 2.2-3. Mast section 1 oriented on base step 3: use spikes provided ...

  • Page 10

    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). Figure 2.2-6. Bag co...

  • Page 11

    Cm375 portable 10-meter mast step 6: assemble section 3 to the top of section 2 (see figure 2.2-7). The black tape around section 2 is a reference (11 foot level) for optional sensor mounts. Note collar section 2 figure 2.2-7. Mast section 2 and mast section 3 step 7: remove the collars from section...

  • Page 12

    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 only one of the three cable ends is shown. Note 8.

  • Page 13

    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 ba...

  • Page 14

    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 10

  • Page 15

    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). Figure 2.2-16. Mast section 5 and guy ring/collar assembly 11.

  • Page 16

    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). Ste...

  • Page 17

    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). Step 2: at 20 ft, install the duckbill anchor ...

  • Page 18

    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). Anchor figure 2.4-4. Locking anchor step 4: fill-in the hole around the...

  • Page 19

    Cm375 portable 10-meter mast step 5: repeat process for the ne (figure 2.4-5) and nw anchors. Ne 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. Attach turnbuckle to wedge end of the guy cable, and th...

  • Page 20

    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). Do not connect the south cables at this time. Note figu...

  • Page 21

    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. Retighten screw when adjustment is complete. Note figure 2.4-9...

  • Page 22

    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...

  • Page 23: 3.  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). Figure ...

  • Page 24

    Cm375 portable 10-meter mast 20

  • 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 sc...