background image

Safety 

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 

 

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. 

 

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. 

 

Read all applicable instructions carefully and understand procedures thoroughly before 

beginning work. 

 

Wear a

 hardhat 

and

 eye protection

, and take 

other appropriate safety precautions

 while 

working on or around tripods and towers.

 

 

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. 

 

Use only manufacturer recommended parts, materials, and tools. 

Utility and Electrical 

 

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

 

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

required by applicable law, 

whichever is greater

, between overhead utility lines and the 

structure (tripod, tower, attachments, or tools). 

 

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

underground utilities marked. 

 

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

installed by a licensed and qualified electrician. 

Elevated Work and Weather 

 

Exercise extreme caution when performing elevated work. 

 

Use appropriate equipment and safety practices. 

 

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. 

 

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

Maintenance 

 

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. 

 

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. 

 

Summary of Contents for HFP01

Page 1: ...HFP01 Soil Heat Flux Plate Revision 1 20 Copyright 2002 2020 Campbell Scientific Inc...

Page 2: ...ucts to CSI CSI will return such Products by surface carrier prepaid within the continental United States of America To all other locations CSI will return such Products best way CIP port of entry per...

Page 3: ...ing 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 co...

Page 4: ...beginning work Wear a hardhat and eye protection and take other appropriate safety precautions while working on or around tripods and towers Do not climb tripods or towers at any time and prohibit cl...

Page 5: ...spection 1 4 QuickStart 1 5 Overview 3 6 Specifications 4 7 Installation 4 7 1 Placement in Soil 5 7 2 Wiring 6 7 3 Programming 7 7 4 Soil Heat Flux and Storage 7 8 Maintenance 8 9 References 8 Append...

Page 6: ...1 General characteristics of a heat flux sensor C 1 C 2 Deflection error C 2 Tables 7 1 Wire Color Function and Data Logger Connections 6 B 1 Wiring for CRBasic Example B 1 B 1 CRBasic Example B 1 Sa...

Page 7: ...is rugged it should be handled as a precision scientific instrument 3 Initial Inspection Upon receipt of the HFP01 inspect the packaging and contents for damage File damage claims with the shipping co...

Page 8: ...ate the sensor in the select Sensors Soil folder Double click HFP01 Soil Heat Flux Plate Type the sensitivity provided on the calibration sheet this value is sensor specific 4 Click the Wiring tab to...

Page 9: ...splay in LoggerNet RTDAQ PC400 or PC200W to make sure it is making reasonable measurements 5 Overview The HFP01 Soil Heat Flux Plate uses a thermopile to measure temperature gradients across its plate...

Page 10: ...s and principles of operation of heat flux sensors is shown in Appendix C General Theory of Heat Flux Sensors p C 1 Features Ideal for energy balance or Bowen ratio systems Compatible with Campbell Sc...

Page 11: ...ors are installed in the undisturbed face of the hole Measure the sensor depths from the top of the hole With a small knife make a horizontal cut 16 cm below the surface into the undisturbed face of t...

Page 12: ...ABLE 7 1 Wire Color Function and Data Logger Connections Wire Color Wire Function Data Logger Single Ended Measurement Data Logger Differential Measurement White Signal U configured for single ended a...

Page 13: ...ded at www campbellsci com old manuals The HFP01 is measured using either a single ended VoltSE or differential VoltDiff instruction The differential measurement is recommended Syntax of the VoltDiff...

Page 14: ...at capacity of dry soil is a reasonable value for most mineral soils Hanks and Ashcroft 1980 The storage term is then given by Eq 3 and the soil heat flux at the surface is given by Eq 4 S T C d t s s...

Page 15: ...can now be edited for additional refinement Once the file is edited with CRBasic Editor Short Cut can no longer be used to edit the program it created 2 To add the Short Cut wiring information into t...

Page 16: ...ogger This data logger program measures two HFP01 Hukseflux soil heat flux sensors Constants Const HFP01_CAL_1 14 90 Unique multiplier for HFP01 1 1000 sensitivity 1000 67 1 Const HFP01_CAL_2 14 92 Un...

Page 17: ...will enhance the output signal In FIGURE C 1 the joints of a copper constantan thermopile are alternatively placed on the hot and the cold side of the sensor The thermopile is embedded in a filling ma...

Page 18: ...nd its environment for example 0 6 for a typical sensor and 0 03 for an insulating wall is about 40 FIGURE C 2 Deflection error The heat flux is deflected at the edges of the sensor As a result the he...

Page 19: ...cennes France Phone 0033 0 1 56 45 15 20 Email info campbellsci fr Website www campbellsci fr Germany Location Bremen Germany Phone 49 0 421 460974 0 Email info campbellsci de Website www campbellsci...

Reviews: