Portatree Downtrack Infrareds, Infrared Stands & Foam Bl User Manual download pdf

594 Blackstone Street -- P.O. Box 206 -- Uxbridge, MA 01569

Tel 508-278-2199 ext. 508 Fax 508-278-5887

Email: [email protected] Web Site: WWW.PORTATREE.COM

Procedure for Setting up Down Track Infrareds,

Infrared Stands, and Foam Blocks

Note: This procedure is the same for all down track infrareds ( 60 foot, 330 foot,

594 foot (mph), 660 foot, 1000 foot, 1254 foot (mph), and 1320 foot )

Infrared height – all at 6 inches off of the racing surface except the

60 foot clock which is set up 10 inches off of the racing surface.

Step 1: Make sure that you have a reference mark at both sides of the race track

which are properly measured and certified at each location.

Step 2: Run a pull line from one side of the race track to the other right through

the opening in the wall. Make sure that the pull line is directly over the marks

on the race track. You can stake off the pull line on both sides of the race track,

but do not pull tight at this time. The stakes must be outside of where the

sensors are to be mounted on the cement pads.

Step 3: Take a foam block that is 6 inches wide and lay it down on its side in the

middle of the race track. The 6 inch height will be used to keep the pull line at

the correct height in the middle of the track. This is the height that the center of

the reflectors will be in the foam block when it is placed in position.

Step 4: Because most tracks have a crown or curve in the racing surface, it is

necessary to pull the line tight and adjust the pull line to the 6 inch height in the

middle of the racing groove. It is necessary to do this in both lanes. Where the

pull line is tied off on the sides of the track, it may be much higher than 6 inches

due to this crown. Make sure that is 6 inches off of the surface in the racing

groove. Pull the line tight at this time. Make sure the line stays over the marks !

Step 5: After you are confident that the line is the correct height and that the line

is directly over the marks, take a measurement from the cement pad where the

sensors are to be mounted to the pull line. This will determine the height that the

center of the infrared sensor (center of the lens on the sensor) will need to be

mounted off of the cement pad.

Step 6: Provide enough shims or supports to properly located the sensor boxes

on the cement pads so that they will be the height measured in Step 5.

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594 Blackstone Street -- P.O. Box 206 -- Uxbridge, MA 01569 Tel 508-278-2199 ext. 508 Fax 508-

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Step 7: Mount the sensor boxes to the cement pad directly under the location of the pull line and at the height that was determined in Step 5. Ste

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Portatree Downtrack Infrareds, Infrared Stands & Foam Bl User Manual