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Solar Radiation Sensor Mounts 

Compliance 

 

CM225:

 

View EU Declaration of Conformity at: 

www.campbellsci.com/cm225-solar-mount

 

6.  Installation 

6.1  Siting 

The solar radiation sensor is usually installed horizontally, but can also be 

installed at any angle including an inverted position. In all cases, it will 

measure the flux that is incident on the surface that is parallel to the sensor 

surface. Site the sensor to allow easy access for maintenance while ideally 

avoiding any obstructions or reflections above the plane of the sensing element. 

It is important to mount the sensor such that a shadow or a reflection will not 

be cast on it at any time. FIGURE 

6-1

 shows how to calculate the distance 

needed from any potential obstruction, using the CMP3 as an example.  

 

FIGURE 6-1.  Solar sensor placement 

If this is not possible, try to choose a site where any obstruction over the 

azimuth range between earliest sunrise and latest sunset has an elevation not 

exceeding 5°. Diffuse solar radiation is less influenced by obstructions near the 

horizon. For instance, an obstruction with an elevation of 5° over the whole 

azimuth range of 360° decreases the downward diffuse solar radiation by only 

0.8%. The sensor should be mounted with the cable pointing towards the 

nearest magnetic pole. For example, in the northern hemisphere, point the cable 

toward the North Pole. 

Summary of Contents for 015ARM

Page 1: ...Solar Radiation Sensor Mounts 015ARM CM225 CM226 CM255 CM255LS CM260 and CM265 Revision 9 19 Copyright 2016 2019 Campbell Scientific Inc ...

Page 2: ...ducts 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 Incoterms 2010 This warranty shall not apply to any Products which have been subjected to modification misuse neglect improper service accidents of nature or shipping damage This warranty is in lieu...

Page 3: ...ping 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 comply with the requirements specified in it The form is available from our website at www campbellsci com repair A completed form must be either emailed to repair campbellsci com or faxed to 435 227 9...

Page 4: ...e 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 kil...

Page 5: ...nitial Inspection 2 4 Overview 2 5 Specifications 3 6 Installation 5 6 1 Siting 5 6 2 Installation 6 7 Maintenance 9 Figures 1 1 Pyranometer mounting brackets 1 4 1 CM255 mounted level and at an angle 2 6 1 Solar sensor placement 5 6 2 Mounting hole locations for solar sensors 6 6 3 015ARM and CM255 showing U bolt mounting 7 6 4 CM255LS 8 6 5 CM226 showing horizontal and vertical mount options 9 ...

Page 6: ...be mounted either horizontally to a crossarm or vertically to a mast or a pole to keep the mounting plate level The CM255 and CM255LS can also be mounted horizontally or vertically but include a 90 adjustment This allows the mount to be positioned and different angles as shown in FIGURE 4 1 The CM260 is designed specifically for securing a pyranometer near the end cap of an ATI Torque Tube and it ...

Page 7: ...cking 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 4 Overview Campbell Scientific solar radiation sensor mounts provide a stable mounting platform for a pyranometer quantum sensor or radiometer The flexibility in these designs allows a sensor to be mounted to a horizontal crossarm or to a...

Page 8: ...03 CM204 CM204SS or CM206 crossarm U bolt in side holes tripod or tower mast or user supplied pipe with 1 in to 1 5 in OD CM226 Solar Sensor Mounting Stand with Level and Base Designed for Apogee solar sensors this mount combines the leveling and mounting hardware needed to install the sensor Dimensions are 15 24 x 9 14 x 9 14 cm 6 0 x 3 6 x 3 6 in and weight is 0 36 kg 0 8 lb CS300 CS301 CS310 SP...

Page 9: ... Pyranometer Plate S CS3002 SP2302 LI200RX2 LI200R2 LI190R2 LI190SB2 CMP3 CMP63 CMP113 CMP213 LP02 SP LITE PQS1 V VU01 Plate Hukseflux SR20 housed in a VU01 Ventilation Unit ATI Torque Tube or any 12 7 cm 5 in diameter tube CM265 Fully Adjustable Pyranometer Mounting Kit for NEXTracker Torque Tube Designed specifically for securing a pyranometer near the end cap of the NEXTracker Torque Tube It ha...

Page 10: ...or such that a shadow or a reflection will not be cast on it at any time FIGURE 6 1 shows how to calculate the distance needed from any potential obstruction using the CMP3 as an example FIGURE 6 1 Solar sensor placement If this is not possible try to choose a site where any obstruction over the azimuth range between earliest sunrise and latest sunset has an elevation not exceeding 5 Diffuse solar...

Page 11: ...ensor Visually inspect the leveling feet on the sensor if present to ensure all feet are in contact with the mounting bracket FIGURE 6 2 Mounting hole locations for solar sensors 3 Using a diopter in combination with a solar compass install and orient the crossarm on the tripod or the mast If installing the mounting bracket on a vertical pole ensure the pole is truly vertical 4 Secure the mounting...

Page 12: ...Solar Radiation Sensor Mounts 7 FIGURE 6 3 015ARM and CM255 showing U bolt mounting ...

Page 13: ...nometers mounted horizontally ensure the mounting bracket is horizontal in two dimensions For pyranometers to be mounted at an angle with the CM255 or CM255LS set the mounting bracket angle to the desired angle prior to tightening the mounting hardware FIGURE 6 4 CM255LS 6 The CM226 uses two bolts wing nuts and a clamp piece to secure it to a crossarm or mast FIGURE 6 5 ...

Page 14: ...g bracket is at the desired angle The CM255LS includes leveling bolts for additional adjustment of the pyranometer level 7 Maintenance Periodically at least yearly check for wear and damage and take necessary corrective actions Ensure all bolts are securely tightened Adjustment screw Crossarm Bolt Flat washer Lock washer Mast Wing nut Horizontal mount Vertical mount ...

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