Campbell CM106B Instruction Manual

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CM106B Tripod

Revision: 7/14

Campbell Scientific, Inc.

PLEASE READ FIRST

About this manual

Please note that this manual was originally produced by Campbell Scientific Inc. (CSI) primarily for the US market. Some spellings, weights and measures may reflect this origin.

Some useful conversion factors:

Area: 1 in

(square inch) = 645 mm

Length: 1 in. (inch) = 25.4 mm

1 ft (foot) = 304.8 mm 1 yard = 0.914 m 1 mile = 1.609 km

Mass: 1 oz. (ounce) = 28.35 g

1 lb (pound weight) = 0.454 kg

Pressure: 1 psi (lb/in2) = 68.95 mb Volume: 1 US gallon = 3.785 litres

In addition, part ordering numbers may vary. For example, the CABLE5CBL is a CSI part number and known as a FIN5COND at Campbell Scientific Canada (CSC). CSC Technical Support will be pleased to assist with any questions.

About sensor wiring

Please note that certain sensor configurations may require a user supplied jumper wire. It is recommended to review the sensor configuration requirements for your application and supply the jumper wire is necessary.

Precautions

DANGER — MANY HAZARDS ARE ASSOCIATED WITH INSTALLING, USING, MAINTAINING, AND WORKING ON OR AROUND

TRIPODS, TOWERS, AND ANY ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS, ENCLOSURES, ANTENNAS, ETC. FAILURE TO PROPERLY AND COMPLETELY ASSEMBLE, INSTALL, OPERATE, USE, AND MAINTAIN TRIPODS,

TOWERS, AND ATTACHMENTS, AND FAILURE TO HEED WARNINGS, INCREASES THE RISK OF DEATH, ACCIDENT, SERIOUS INJURY, PROPERTY DAMAGE, AND PRODUCT FAILURE. TAKE ALL REASONABLE PRECAUTIONS TO AVOID THESE HAZARDS. CHECK WITH YOUR ORGANIZATION'S SAFETY COORDINATOR (OR POLICY) FOR PROCEDURES AND REQUIRED PROTECTIVE EQUIPMENT PRIOR TO PERFORMING ANY WORK.

Use tripods, towers, and attachments to tripods and towers only for purposes for which they are designed. Do not exceed design limits. Be familiar and comply with all instructions provided in product manuals. Manuals are available at www.campbellsci.com or by telephoning 435-227-9000 (USA). You are responsible for conformance with governing codes and regulations, including safety regulations, and the integrity and location of structures or land to which towers, tripods, and any attachments are attached. Installation sites should be evaluated and approved by a qualified engineer. If questions or concerns arise regarding installation, use, or maintenance of tripods, towers, attachments, or electrical connections, consult with a licensed and qualified engineer or electrician.

General

x Prior to performing site or installation work, obtain required approvals and permits. Comply

with all governing structure-height regulations, such as those of the FAA in the USA.

x Use only qualified personnel for installation, use, and maintenance of tripods and towers, and

any attachments to tripods and towers. The use of licensed and qualified contractors is highly recommended.

x Read all applicable instructions carefully and understand procedures thoroughly before

beginning work.

x Wear a hardhat and eye protection, and take other appropriate safety precautions while

working on or around tripods and towers.

x Do not climb tripods or towers at any time, and prohibit climbing by other persons. Take

reasonable precautions to secure tripod and tower sites from trespassers.

x Use only manufacturer recommended parts, materials, and tools.

Utility and Electrical

x You can be killed or sustain serious bodily injury if the tripod, tower, or attachments you are

installing, constructing, using, or maintaining, or a tool, stake, or anchor, come in contact with overhead or underground utility lines.

x Maintain a distance of at least one-and-one-half times structure height, or 20 feet, or the

distance required by applicable law, whichever is greater, between overhead utility lines and the structure (tripod, tower, attachments, or tools).

x Prior to performing site or installation work, inform all utility companies and have all

underground utilities marked.

x Comply with all electrical codes. Electrical equipment and related grounding devices should

be installed by a licensed and qualified electrician.

Elevated Work and Weather

x Exercise extreme caution when performing elevated work. x Use appropriate equipment and safety practices. x During installation and maintenance, keep tower and tripod sites clear of un-trained or non-

essential personnel. Take precautions to prevent elevated tools and objects from dropping.

x Do not perform any work in inclement weather, including wind, rain, snow, lightning, etc.

Maintenance

x Periodically (at least yearly) check for wear and damage, including corrosion, stress cracks,

frayed cables, loose cable clamps, cable tightness, etc. and take necessary corrective actions.

x Periodically (at least yearly) check electrical ground connections.

WHILE EVERY ATTEMPT IS MADE TO EMBODY THE HIGHEST DEGREE OF SAFETY IN ALL CAMPBELL SCIENTIFIC PRODUCTS, THE CUSTOMER ASSUMES ALL RISK FROM ANY INJURY RESULTING FROM IMPROPER INSTALLATION, USE, OR MAINTENANCE OF TRIPODS, TOWERS, OR ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS, ENCLOSURES, ANTENNAS, ETC.

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. Cautionary Statements ............................................... 1

3. Initial Inspection ......................................................... 2

3.1 Inspect Packaging ................................................................................ 2

3.2 Tripod Components.............................................................................. 2

3.3 Tools List (for tripod, mast, enclosures, and crossarms) ...................... 4

4. Overview ...................................................................... 4

5. Specifications ............................................................. 5

6. Installation ................................................................... 6

6.1 Tripod Installation ................................................................................ 6

6.1.1 Tripod Base ................................................................................... 6

6.1.1.1 Mounting on a Relatively Flat Area ................................... 7

6.1.1.2 Mounting on an Incline ...................................................... 7

6.1.2 Mast .............................................................................................. 8

6.1.3 Installing the Optional Guy Kit ................................................... 10

6.1.4 Staking the Tripod Feet ............................................................... 12

6.1.5 Tripod Grounding ....................................................................... 13

6.1.6 Crossarm Attachment.................................................................. 15

6.1.7 Enclosure Attachment ................................................................. 15

6.1.7.1 Enclosure Mounting to Tripod Mast ................................ 15

6.1.7.2 Enclosure Mounting to Tripod Leg .................................. 16

6.2 Mounting Brackets ............................................................................. 18

6.2.1 CM210 Crossarm Mounting Kit ................................................. 18

6.2.2 CM216 Mast Mounting Kit ........................................................ 19

6.2.3 CM220 Right Angle Mounting Kit ............................................. 20

6.2.4 CM225 and 18098 Pyranometer Mounting Stand....................... 21

6.2.5 CM230 Adjustable Angle Mounting Kit..................................... 22

6.2.6 CM235 Magnetic Mounting Stand ............................................. 23

6.2.7 R.M. Young Gill Radiation Shields ............................................ 24

Appendix

CM106B Allowable Wind Speeds .......................... A-1

Table of Contents

Figures

1-1. Typical tripod-based weather station ................................................... 1

3-1. Tripod components .............................................................................. 3

4-1. CM106B tripod with lightning rod and guy wires............................... 4

6-1. Tripod leg, leg clamp components ...................................................... 6

6-2. Comparison of one leg pointing downhill (right) versus two legs

pointing downhill ............................................................................. 7

6-3. Tripod mast and insert ......................................................................... 8

6-4. Mast attachment to tripod base ............................................................ 9

6-5. Guy collar .......................................................................................... 10

6-6. Leg attachment .................................................................................. 11

6-7. Staking the tripod feet ....................................................................... 12

6-8. Ground rod and clamp ....................................................................... 13

6-9. Lightning rod ..................................................................................... 14

6-10. CM204 Crossarm .............................................................................. 15

6-11. Enclosure with the –MM bracket ...................................................... 16

6-12. Enclosure with the –LM bracket ....................................................... 17

6-13. CM210 Crossarm Mounting Kit (shown with user-supplied pipe) ... 18

6-14. CM216 Mast Mounting Kit ............................................................... 19

6-15. CM220 Right Angle Mounting Kit ................................................... 20

6-16. CM225 Pyranometer Mounting Stand ............................................... 21

6-17. CM230 Adjustable Angle Mounting Kit ........................................... 22

6-18. CM235 Magnetic Mounting Stand .................................................... 23

6-19. R.M. Young Gill Radiation Shield .................................................... 24

CM106B Tripod

1. Introduction

The CM106B is a general purpose tripod that can be used for mounting sensors, solar panels, antennas, and instrument enclosures. FIGURE 1-1 shows the CM106B being used in a typical weather station configuration.

2. Cautionary Statements

FIGURE 1-1. Typical tripod-based weather station

x READ AND UNDERSTAND the Precautions section at the front of this

manual.

x WARNING — Ensure structural integrity during setup and weather

extremes to minimize the chance of damaging the tripod or instruments. Read all instructions carefully. Once the tripod is in full vertical position, securely fasten it to the ground using ground spikes.

CM106B Tripod

x WARNING — For installations where soil structure is questionable or the

tripod may experience high wind loads, concrete footings for the tripod feet and guy anchors should be considered.

3. Initial Inspection

3.1 Inspect Packaging

Upon receiving the CM106B, inspect the packaging and contents for damage. Claims for shipping damage must be filed with the shipping company.

Locate the packing slip for the order and compare the items listed on the packing slip to the items that were actually shipped. Report any discrepancies to Campbell Scientific.

3.2 Tripod Components

FIGURE 3-1 shows the tripod components. The tripod base is packaged with the mast, mast extension, ground rod, lightning rod, and (6) stakes. The ground rod clamp, lightning rod, lightning rod clamp, cable ties, and ground wires are enclosed in a bag. The optional guy kit is packaged separately.

CM106B Tripod

(12) Cable Ties

Lightning Ro

and Clamp

(6) Stakes

Mast Extension

Mast

Base

Ground Wires

Ground Ro

and Clamp

FIGURE 3-1. Tripod components

CM106B Tripod

3.3 Tools List (for tripod, mast, enclosures, and crossarms)

4. Overview

1/2-in. and 7/16-in. open end wrenches adjustable wrench Phillips head screw drivers (medium, small) Straight bit screwdrivers (large, medium) 12-in. torpedo level side-cut pliers pencil tape measure compass and site declination angle shovel sledge hammer (for driving ground rod and stakes) step ladder

The CM106B (FIGURE 4-1) is constructed from galvanized steel, with individually adjustable legs that allow installation over uneven terrain.

The CM106B includes lightning and ground rods, ground cables, UV resistant cable ties, and stakes for securing the tripod feet to the ground. An optional guy kit is recommended for sites that experience high wind speeds (see Section

5, Specifications). Instrument enclosures can be purchased with mounting

brackets that attach to either the mast or leg section as shown in Section 6.1.7,

Enclosure Attachment.

The CM106B can be used for a variety of applications. For meteorological stations, sensors are mounted to the tripod using mounting brackets appropriate for the model of sensor. For non-meteorological applications, the tripod can be used to mount instrument enclosures, solar panels, junction boxes, or antennas.

FIGURE 4-1. CM106B tripod with lightning rod and guy wires

5. Specifications

Mast Height

Upper Mast Retracted: 2.1 m (7 ft) to 2.8 m (9.3 ft) Upper Mast Extended: 3 m (10 ft) to 3.7 m (12.3 ft)

Vertical Load Limit: 200 kg (440 lb)

Mast Outer Diameter Main Lower Mast: 48 mm (1.90 in) Retractable Upper: 44 mm (1.74 in)

Base Diameter: 2.7 m (8.7 ft) to 3.5 m (11.5 ft)

Leveling Adjustment: Slide collars on each leg, adjust individually

Leg Base: 4.5 in. by 5.5 in. with four 0.62 in. holes for

Portability: Collapsible to 8 in. diameter by 6 ft length

CM106B Tripod

stakes

Weight with Mast: 24.5 kg (54 lb)

Maximum Slope Angle: 45° or 100% grade

Allowable Wind Speeds*

Tripod Configuration Sustained Wind Wind Gust

Mast Extended, Unguyed 62 mph (28 m s–1) 81 mph (36 m s–1)

Mast Retracted, Unguyed 80 mph (36 m s–1) 104 mph (46 m s–1)

Mast Extended, Guyed 102 mph (45 m s–1) 132 mph (59 m s–1)

Mast Retracted, Guyed 122 mph (55 m s–1) 159 mph (71 m s–1)

*Allowable wind speed values assume:

x Sensors (effective area = 1.4 ft x Solar panel (10.5 in x 16.5 in) at mast base x Enclosure (14 in x 16 in) mounted to leg x Guy wires attached to mast at 3.8 ft above tripod body x Adequate ground anchors (stakes alone may not resist foot vertical

pullout force)

x See Appendix A for more information on maximum allowable wind

speeds.

) at top of mast

CM106B Tripod

6. Installation

6.1 Tripod Installation

6.1.1 Tripod Base

The tripod base has three independently adjustable legs allowing the tripod to be installed over non-level terrain.

Prepare the area where the tripod will be installed. The tripod requires an area approximately 2.7 to 3.5 m (8.7 to 11.5 ft) in diameter. Natural vegetation and the ground surface should be disturbed as little as possible, but brush and tall weeds should be removed.

Stand the tripod base up on end, and rotate the feet perpendicular to the legs. Each leg has a leg clamp and clamping bolt as shown in FIGURE 6-1.

Leg Clamp

Clamping Bolt

FIGURE 6-1. Tripod leg, leg clamp components

6.1.1.1 Mounting on a Relatively Flat Area

Loosen the tension bolt and extend each leg. With the legs extended, orient the tripod so that one of the legs points South (assuming the instrument enclosure with –MM Mast Mount bracket will face North). If the instrument enclosure has the –LM Leg Mount bracket, orient the tripod so the enclosure will mount to one of the three leg mount positions on the tripod, facing the desired direction. The tripod is typically plumbed after the mast has been installed, as

described in Section 6.1.2, Mast.

6.1.1.2 Mounting on an Incline

Loosen the tension bolt and extend each leg. With the legs extended, orient the tripod so that one leg points downhill and the other two legs point uphill. The tripod is more stable with only one leg pointed downhill because the mast is closer to the center of the footprint (see FIGURE 6-2).

The tripod is typically plumbed after the mast has been installed, as described

in Section 6.1.2, Mast.

CM106B Tripod

FIGURE 6-2. Comparison of one leg pointing downhill (right) versus

two legs pointing downhill

CM106B Tripod

6.1.2 Mast

The CM106B includes a mast extension that can be fully extended for a 3 m (10 ft) height, or partially extended for a 2.1 m (7 ft) height. Remove the bolts in the extension, align the holes in the insert with holes in the mast, and install the four bolts previously removed. Two additional holes make it possible for the extension to extend 8 in. or 12 in., or 20 in., 24 in., or 28 in. above the mast depending on which end is inserted in the mast.

Mast extension retracted

Mast extension fully extended

Mast

FIGURE 6-3. Tripod mast and insert

Mas

CM106B Tripod

Preset at Factory

Bolts

Tab

Preset at Factory

FIGURE 6-4. Mast attachment to tripod base

Loosen the six bolts on the tripod base. FIGURE 6-4 shows the location of four of these bolts. The remaining bolts are in the same position on the third tripod leg. Slide the mast into the tripod base, making sure that it extends below the lower bolts and rests on the tabs. Tighten the six bolts to secure the mast.

Plumb the tripod by adjusting the northeast and south facing legs. With a level on the East side of the mast, adjust the Northeast leg for plumb. With the level on the South side of the mast, adjust the South leg for plumb. Tighten the tension bolts after the adjustments have been made.

CM106B Tripod

6.1.3 Installing the Optional Guy Kit

Part 29813, CM106B Guy Kit, can be ordered separately for areas that experience high wind speeds (Section 5, Specifications). Install the guy

brackets to the mast as shown in FIGURE 6-5. Attach the three guy wires to the guy collar and slide the collar over the mast so that the collar butts against the brackets.

Guy Collar

Guy Wire

Guy Bracket

FIGURE 6-5. Guy collar

On the end of each guy line is a case and hardware to attach to the turnbuckles. Unscrew the turnbuckles so that only 1/2 in. of thread extends beyond the inside of the turnbuckle body. Attach the case and turnbuckle to the tripod leg as shown in FIGURE 6-6. Loosen the two clamp nuts, and remove the slack in the guy line by feeding the load end of the guy wire through the case while pulling up on the free end.

After the slack has been removed from the guy lines, tighten the clamp nuts, and then tighten the turnbuckles to the desired tension.

CM106B Tripod

FIGURE 6-6. Leg attachment

Clamp Nut

CM106B Tripod

6.1.4 Staking the Tripod Feet

Six stakes are provided for securing the tripod feet to the ground. Drive two stakes through holes in each foot at an angle as shown in FIGURE 6-7.

Stakes may not be adequate depending on soil structure, maximum wind speeds experienced at the site, mast height, or wind load from the instrumentation. For questionable situations, additional stakes (pn 17049) or even concrete footings for the tripod feet and guy anchors should be considered.

FIGURE 6-7. Staking the tripod feet

6.1.5 Tripod Grounding

Place the clamp over the ground rod and drive the rod (close to the center of the tripod) using a sledge hammer or fence post driver. Strip 1/2 in. of insulation from both ends of the black 4 AWG ground wire. Insert one end of the ground wire into the clamp and ground rod and tighten the bolt on the clamp. Attach the other end of the ground wire to the lug on the tripod base as shown in FIGURE 6-8.

CM106B Tripod

Ground Lug

Ground Wire

Enclosure Ground Lug

Enclosure Ground Wire

FIGURE 6-8. Ground rod and clamp

CM106B Tripod

Strip 1/2 in. of insulation from the ends of the green 12 AWG wire. Attach one end of the wire to the tripod ground lug, and the other end to the enclosure ground lug as shown in FIGURE 6-8.

Mount the lightning rod and clamp to the tripod mast with pointed tip up, and notch at bottom (FIGURE 6-9).

Lightning Rod

Clamp

FIGURE 6-9. Lightning rod

Mast

6.1.6 Crossarm Attachment

Attach the CM202 (0.6 m, 2 ft), CM204 (1.2 m, 4 ft), or CM206 (1.8 m, 6 ft) crossarm to the tripod mast as shown in FIGURE 6-10. For wind sensors, the crossarm should be approximately 103 in. above the ground for a 3 m mounting height, or 64 in. for a 2 m mounting height. Typically the crossarm is oriented East/West for wind sensors, North/South for pyranometers.

CM106B Tripod

FIGURE 6-10. CM204 Crossarm

6.1.7 Enclosure Attachment

The ENC10/12, ENC12/14, ENC14/16, and ENC16/18 enclosures can be ordered with mounting brackets for the CM106B tripod. All enclosure models can be mounted to the tripod mast (above the legs) with the –MM Mast Mount bracket option. All enclosure models except the ENC16/18 can be mounted to the tripod base and leg with the –LM Leg Mount bracket option. Two enclosures with the –LM brackets can be mounted in a “back to back” configuration.

6.1.7.1 Enclosure Mounting to Tripod Mast

An enclosure ordered with the –MM bracket has a three-piece top and bottom brackets with a U-bolt for each bracket.

Attach an enclosure with the –MM mounting bracket to the tripod mast as follows:

CM200 Series Crossarm

Tripod Mast

Remove the U-bolts, washers, and nuts from the brackets.

Position the enclosure against the tripod’s mast (North side recommended).

CM106B Tripod

Install the U-bolts, flat washers, lock washers, and nuts (FIGURE 6-11). Tighten the nuts until the lock washers are compressed.

Route the 14 AWG wire from the ground lug on the bottom side of the enclosure to the ground lug on the base of the tripod (FIGURE 6-8). Strip 1/2 in. of insulation from each end of the wire. Insert wire ends into the ground lugs and tighten.

Lock Washers

FIGURE 6-11. Enclosure with the –MM bracket

6.1.7.2 Enclosure Mounting to Tripod Leg

An enclosure ordered with the –LM bracket has a bracket on each side of the enclosure, and a U-bolt bracket for securing the enclosure to a tripod leg.

Attach an enclosure with the –LM mounting bracket to the tripod base as follows:

Slide the keyhole notch in upper corner of the –LM bracket over the extended hook located on the tripod base as shown in FIGURE 6-12, and engage the notch in the lower corner of the –LM bracket with the enclosure tab. There are six places on the tripod base with provisions for mounting enclosures with the –LM brackets.

CM106B Tripod

Remove the washers, nuts, and U-bolt from the U-bolt bracket. Install the bracket as shown in FIGURE 6-12 (top). Tighten the nuts on the U-bolt until the lock washers are compressed.

Enclosure Tab

FIGURE 6-12. Enclosure with the –LM bracket

CM106B Tripod

6.2 Mounting Brackets

Mounting brackets covered in this section have U-bolts that attach to vertical and/or horizontal pipes with the following ranges of outside diameters:

inches mm Nominal Pipe Size (inches)

1.5-in. U-bolt 1.0 – 1.5 25.4 – 38.1 ¾ – 1

2-in. U-bolt 1.3 – 2.1 33.0 – 53.3 1 – 1 ½

2-in. U-bolt with plastic V-block

Some of the brackets (for example, the CM210) include 1.5-in. and 2-in. U-bolts to extend the range of pipe diameters that the bracket can accommodate. Brackets with holes for a 1.5-in. U-bolt will accept a usersupplied 1.75-in. U-bolt.

1.0 – 2.1 25.4 – 53.3 ¾ – 1 ½

6.2.1 CM210 Crossarm Mounting Kit

CM200 series crossarms include a CM210 bracket as shown in FIGURE 6-13. The CM210 can be ordered separately to attach a user-supplied pipe (1.0-in. to

1.5-in. OD) to a mast or tower leg (1.0-in. to 2.1-in. OD), or to attach a crossarm to two tower legs.

CM210

FIGURE 6-13. CM210 Crossarm Mounting Kit (shown with user-

supplied pipe)

6.2.2 CM216 Mast Mounting Kit

The CM216 attaches to the top of the mast, and provides a 3/4-in. or 1-in. mounting pipe (1.05-in. or 1.32-in. OD) that extends 4 in. above the mast, as shown in FIGURE 6-14.

CM106B Tripod

CM216

FIGURE 6-14. CM216 Mast Mounting Kit

CM106B Tripod

6.2.3 CM220 Right Angle Mounting Kit

The CM220 attaches a vertical pipe (1.0-in. to 1.5-in. OD) to the CM200-series crossarms or horizontal pipe (1.0-in. to 1.5-in. OD) as shown in FIGURE 6-15.

CM220

FIGURE 6-15. CM220 Right Angle Mounting Kit

CM220

6.2.4 CM225 and 18098 Pyranometer Mounting Stand

The CM225 is used to attach a pyranometer or quantum sensor to a horizontal pipe (1.0-in. to 2.1-in. OD) or vertical pole (1.0-in. to 2.1-in. OD).

The LI200X pyranometer and LI190SB quantum sensor mount to the CM225 via the LI200S leveling base (see FIGURE 6-16). The CS300 pyranometer mounts to the CM225 via the 18356 leveling base. The CMP3 and LP02 pyranometers include their own bubble level and leveling screws allowing them to mount directly to the CM225.

The 18098 provides a larger surface for mounting a user-supplied Eppley pyranometer.

CM225

CM106B Tripod

LI2003S

LI200X Pyranometer

CM225

FIGURE 6-16. CM225 Pyranometer Mounting Stand

CM106B Tripod

6.2.5 CM230 Adjustable Angle Mounting Kit

The CM230 mounts an antenna (1.0-in. to 1.5-in. OD) to a mast or vertical pipe (1.3-in. to 2.1-in. OD) as shown in FIGURE 6-17. The bracket allows the antenna to be adjusted for different angles.

CM230

FIGURE 6-17. CM230 Adjustable Angle Mounting Kit

6.2.6 CM235 Magnetic Mounting Stand

The CM235 provides a 8.8 cm (3.5 in) square platform for mounting magnetic base antennas. The CM235 attaches to horizontal or vertical pipes (1.0-in. to

2.1-in. OD) as shown in FIGURE 6-18.

CM106B Tripod

FIGURE 6-18. CM235 Magnetic Mounting Stand

CM106B Tripod

6.2.7 R.M. Young Gill Radiation Shields

R.M. Young Gill Radiation Shields are used to house and attach temperature and relative humidity sensors to the tripod mast (1.0-in. to 2.1-in. OD) or crossarm as shown in FIGURE 6-19. Radiation shields ship with the U-bolt configured for attachment to a vertical pipe. To attach the radiation shield to a horizontal pipe, the U-bolt and plastic V-block must be moved to the other set of holes.

FIGURE 6-19. R.M. Young Gill Radiation Shield

Appendix A. CM106B Allowable Wind Speeds

CM106B load ratings assume:

pullout force)

Max.

Allowable Tripod Footprint Dia.

ft m ft m mph m/s lb kN lb kN lb kN lb kN

11.5 3.5 7 2.1 Retracted

Mast Height

Mast Configuration

Gust

Guy Anchors

Unguyed 104 46 964 4.3 70 0.31 - - - -

Attached to legs @ feet, 45deg Zenith

Independent anchors @ 45deg Zenith

Wind

Speed

159 71 639 2.8 163 0.73 300 1.3 150 0.67

159 71 639 2.8 56 0.25 300 1.3 150 0.67

) at top of mast

Max. Allowable Equipment Weight

Foot Vertical Pullout Force at Gust Speed

GuyWire Tension at Gust Speed

Ideal GuyWire Installation PreTension

8.7 2.7 9.3 2.8 Retracted

11.5 3.5 10 3.0 Extended

Unguyed 104 46 964 4.3 160 0.71 - - - -

Attached to legs @ feet

Independent anchors @ 45deg Zenith

Unguyed 81 36 964 4.3 59 0.26 - - - -

Attached to legs @ feet, 45deg Zenith

Independent anchors @ 45deg Zenith

159 71 438 1.9 352 1.57 400 1.8 200 0.89

159 71 639 2.8 155 0.69 300 1.3 150 0.67

132 59 544 2.4 157 0.70 400 1.8 200 0.89

132 59 544 2.4 17 0.08 400 1.8 200 0.89

A-1

Appendix A. CM106B Allowable Wind Speeds

Foot

Tripod Footprint Dia.

Mast Height

Mast Configuration

Guy Anchors

Max. Allowable Gust Wind Speed

Max. Allowable Equipment Weight

Vertical Pullout Force at Gust Speed

GuyWire Tension at Gust Speed

Ideal GuyWire Installation PreTension

ft m ft m mph m/s lb kN lb kN lb kN lb kN

Unguyed 81 36 964 4.3 121 0.54 - - - -

8.7 2.7 12.3 3.7 Extended

Attached to legs @ feet

Independent anchors @ 45deg Zenith

116 52 438 1.9 248 1.10 400 1.8 200 0.89

132 59 544 2.4 69 0.31 400 1.8 200 0.89

A-2

Campbell Scientific Companies

Campbell Scientific, Inc. (CSI)

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Campbell Scientific Ltd. (CSL France)

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92160 ANTONY

FRANCE

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Fahrenheitstraße 13

28359 Bremen

GERMANY

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08024 Barcelona

SPAIN

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Campbell CM106B Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual