Desa HD-9140 manual If the wide angle 270 coverage is too wide for, Coverage Angle

Models: HD-9140

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If the wide angle (270°) coverage is too wide for

If the wide angle (270°) coverage is too wide for

 

Maximum

your application, you may need to install the lens

 

 

Coverage Angle

shield to reduce the coverage angle.

 

 

 

Decide which side of the lens you want to cover.

 

Approx. area

270°

Curve the shield as shown. Slide the shield

blocked by the

 

 

lens shield (if

down, under the two metal ribs of the case.

 

used)

Make sure the shield slides all the way down

 

 

so the entire shield will lay directly against the lens.

Slip the small protrusion behind the vertical metal rib to hold the top of the shield in place.

Slip behind

 

vertical rib

Lens shield

Metal

Coverage Angle ribs

If the sensor is not kept level you may experi- ence an apparent decrease in range because objects may pass under the detection zone with- out being detected.

-10-

595-5660-06

Page 10
Image 10
Desa HD-9140 manual If the wide angle 270 coverage is too wide for, Coverage Angle