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DAVIS Sensor Mounting Arm, Install Manual

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DAVIS Sensor Mounting Arm Install Manual Download Page 3

 

Assembling the Sensor Mounting Arm

Page 3

 

The Sensor Arm

 

The illustration below shows the sensor arm and indicates which holes are 
used by the various sensors, brackets, and accessories.

 

S

 

ENSOR

 

 A

 

RM

 

 H

 

OLE

 

 A

 

SSIGNMENTS

 

Typical Sensor Mounting Arm Installation

 

The illustration below shows a typical Sensor Mounting Arm installation 
with all possible sensors attached to the sensor arm.

 

T

 

YPICAL

 

 S

 

ENSOR

 

 M

 

OUNTING

 

 A

 

RM

 

 I

 

NSTALLATION

Summary of Contents for Sensor Mounting Arm

Page 1: ...nsor Mounting Arm includes the following components Please make sure you have all listed components before continuing Sensor Arm Mounting Bracket 16 5 foot 5 m Ground Wire Installation Hardware Kit a One 3 8 Cable Clamp b Four 3 16 Cable Clamps c Three 3 8 Cable Ties d Four 1 4 x 1 1 2 38 mm Lag Screws e Eleven 8 Flat Washers f Six 8 Split Lock Washers g Six 8 32 Hex Nuts h Eight 1 4 Flat Washers ...

Page 2: ...the anemometer on the same side as the Radiation Shield ASSEMBLING THE SENSOR MOUNTING ARM The assembly of the sensor arm involves attaching the mounting bracket and then attaching all desired sensors Instructions for attaching sensors other than the anemometer to the Sensor Mounting Arm are contained in the manual for that sensor or for the accessory which allows that sensor to be attached such a...

Page 3: ...icates which holes are used by the various sensors brackets and accessories SENSOR ARM HOLE ASSIGNMENTS Typical Sensor Mounting Arm Installation The illustration below shows a typical Sensor Mounting Arm installation with all possible sensors attached to the sensor arm TYPICAL SENSOR MOUNTING ARM INSTALLATION ...

Page 4: ...ach of the 8 32 x 2 1 2 screws 2 Position the mounting bracket so the holes in the mounting bracket line up with the appropriate holes on the sensor arm 3 Slide each of the 8 32 x 2 1 2 screws with washer through the holes on the sensor arm and the mounting bracket 4 Secure the mounting bracket to the sensor arm using a 8 flat washer 8 split lock washer and a 8 32 hex nut on each screw end Tighten...

Page 5: ... and direction readings In this case and only in this case you may want to mount the anemometer on the end farthest from the mounting bracket In general you should mount the anemometer below the sensor arm following the instructions in Attaching the Anemometer Below the Sensor Arm Pre ferred on page 6 If however you need to mount the anemometer arm on the end farthest from the mounting bracket and...

Page 6: ...your weather station Your weather station manual contains instructions for connecting the two Simply reverse the directions to disconnect them 2 If necessary disconnect the anemometer arm from the anemometer base Your weather station manual contains instructions for connecting the two Simply reverse the directions to disconnect them 3 Place one of the 1 2 U bolts over the anemometer arm 4 Slide on...

Page 7: ...ing bracket SLIDE U BOLTS INTO HOLES 7 Secure the U bolts and anemometer arm in place using a 1 4 flat washer 1 4 split lock washer and 1 4 hex nut on each of the U bolt ends Tighten the hex nuts with your hand so the arm is gently held in place Do not tighten fully until instructed to do so later on ATTACH THE U BOLTS AND ANEMOMETER ARM ...

Page 8: ...in high winds tighten the hex nuts until you notice the anemometer arm just begin to buckle underneath the U Bolt 10 Place a cable clamp around the anemometer cable 11 Slide a 8 32 x 3 4 screw down through the indicated hole on the sensor arm ATTACH THE CABLE CLAMP 12 Slide the hole in the cable clamp over the end of the 8 32 x 3 4 screw 13 Secure the cable clamp and cable in place using an 8 flat...

Page 9: ...ld has already been attached to the sensor arm 2 If necessary disconnect the anemometer from your weather station Your weather station manual contains instructions for connecting the two Simply reverse the directions to disconnect them 3 If necessary disconnect the anemometer arm from the anemometer base Your weather station manual contains instructions for connecting the two Simply reverse the di...

Page 10: ...8 While holding the U bolts in place turn the sensor arm over so the protruding ends of the U bolts are visible 9 Secure the U bolts and anemometer arm in place using a 1 4 flat washer 1 4 split lock washer and 1 4 hex nut on each of the ends of the U bolts Tighten the hex nuts with your hand so the arm is gently held in place Do not tighten fully until instructed to later on ATTACH THE U BOLTS AN...

Page 11: ...he hex nuts In order to keep the anemometer arm steady in high winds tighten the hex nuts until you notice the anemometer arm just begin to buckle underneath the U Bolt 12 Place a cable clamp around the anemometer cable 13 Slide a 8 32 x 3 4 screw down through the indicated hole on the sensor arm ATTACH THE CABLE CLAMP 14 Run the anemometer cable underneath the sensor arm and slide the hole in the...

Page 12: ...st onto a small pipe with an outside diameter between 1 and 1 1 4 25 mm and 31 mm or onto a large pipe with an outside diameter between 1 1 2 and 2 3 8 38 mm and 60 mm Mounting the Sensor Mounting Arm on a Wooden Post To attach the Sensor Mounting Arm to a wooden post you will need the sensor arm assembly with mounting bracket and sensors attached four 1 4 x 1 1 2 lag screws and four 1 4 flat wash...

Page 13: ...2 U bolts four 1 4 flat washers four 1 4 lock washers and four 1 4 hex nuts Note When mounting on a small pipe the Sensor Mounting Arm must be mounted at the top of the pipe 1 Position the mounting bracket with sensor arm against the pipe 2 Slide the ends of one of the 1 1 2 U bolts so that the U bolt wraps around the pipe into the holes on the mounting bracket 3 Secure the U bolts in place using ...

Page 14: ...lts two 2 1 4 saddles four 5 16 flat washers four 5 16 lock washers and four 5 16 hex nuts 1 Wrap one of the 2 1 4 U bolts around the pipe and hold it in place 2 Slide one of the 2 1 4 saddles over the ends of the U bolt so that it wraps around the pipe as well U BOLTS AND SADDLES ON PIPE 3 Repeat the steps above for the other U bolt and saddle 4 Slide the ends of the U bolts into the holes on the...

Page 15: ...pe should be ade quate for general homeowner s backyard or open field agricultural locations for a mounting height of 6 to 8 feet 2 to 2 5 m provided that low wind loading conditions apply and the pipe is anchored to a suitable foundation If you are unsure consult a qualified professional for national and local codes Regardless of the mounting location local building codes must be followed If you ...

Page 16: ...f the EC EMC Directive 89 336 EC Davis Instruments Corp 1997 All rights reserved MAINTAINING THE SENSOR MOUNTING ARM You should check the tightness of the various screws and U bolts periodically Pay particular attention to the U bolts holding the anemometer arm in place TECHNICAL SUPPORT Before calling Technical Support 1 510 732 7814 carefully check this instruc tion manual for the answer to your...

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