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Mounting
Bracket Mounting
It is recommended that you mount the PAR smart sensor with
the light sensor mounting bracket (M-LBB) on a pole or tripod.
To mount the PAR smart sensor using the bracket:
1. Attach the light sensor bracket to a 1¼ inch - 1
with the provided U-bolts.
Note: The light sensor bracket can also be mounted on a
flat, vertical surface using four screws.
2. Position the light sensor on top of the light sensor bracket
with its cable running through the slot in the bracket.
3. Using the two screws supplied, attach the sensor to the
bracket through the two holes on either side of the slot.
Note: Do not completely tighten the screws until you level
the light sensor.
4. Position the bracket so it faces toward the equator,
minimizing the chance of shading.
5. Mount the light sensor bracket on the mast with the two U-
bolt assemblies, mounting it high enough on the mast to
avoid the possibility of shading the light sensor.
Note: If you mount the light sensor above eye level, it is
recommended that you use a step ladder or other secure
platform when leveling the sensor so that you can clearly
view the light sensor level (M-LLA).
PAR sensor
Thumbscrew
PAR sensor cable
PAR Smart Sensor Bracket Mounting
6. Make sure the screws holding the sensor to the mounting
bracket are loose.
7. Place the light sensor level on the light sensor.
8. Adjust the height of the thumbscrews to level the sensor
(start with the thumbscrews protruding about 1/16 inch
from the bracket).
9. Once the sensor is near level, tighten the Phillips head
screws.
1.800.561.8187
/
inch pole
5
8
Mast
Light sensor
bracket
U-bolt assembly
www.
PAR Smart Sensor (S-LIA-M003) Manual
10. Check the light sensor level and repeat above steps if
necessary.
11. When the light sensor is level, remove the light sensor level
from the light sensor.
PAR sensor
Leveling the PAR Smart Sensor on
the Light Sensor Bracket
Specialized Application Mounting
To mount the light sensor using a mounting plate of your own
design:
1. Drill a 0.56 (9/16) inch hole in the middle of the plate, then
drill two #25 holes 1.063 (1-1/16) inches apart on either
side of the center hole. Cut a 0.31 (5/16) inch-wide slot in
the mounting plate as shown below. The plate should be a
thickness of 1/8 inch or less.
2. Slide the sensor through the 0.31 (5/16) inch-wide slot.
3. Attach the sensor using two 6-32 x 3/8 inch screws and lock
washers (not included).
4. Shim the sensor as necessary to level it
Recommended Mounting Plate Dimensions
Mounting Considerations
• Small errors in alignment can produce significant errors.
Be certain that the sensor is mounted level.
• Mount the light sensor where it will not be in a shadow.
• If possible, avoid locating the sensors in dusty locations.
Dust, pollen, and salt residue that collect on the top of the
sensor can significantly degrade accuracy.
• Refer to the station manual and Tripod Setup Guide for
more information regarding setting up stations.
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information@itm.com
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PAR sensor level
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