Wavetronix Expanse XP20 User Manual Download

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Chapter 2: Installing the XP20

•

Snap the connector insert on top of the pin housing. Again,

you'll have to align it properly.

Slide the rubber seal inside the clamping ring.

Figure 14.

Completed connector

Insert the whole assembly into the backshell, twisting the back-

shell until it slips over the alignment marks in the connector

insert; slide the backshell nut forward over the cable and screw

the two together using two 18 mm wrenches.

Applying silicon dielectric compound

Figure 15.

Applying the compound

Tear the tab off the tube of silicon dielectric compound that

came with the sensor.

Squeeze about a quarter of the compound onto the connector

at the base of the sensor.

Summary of Contents for Expanse XP20

Page 1: ...Expanse XP20 USER GUIDE ...

Page 2: ...Expanse XP20 USER GUIDE Provo Utah 801 734 7200 www wavetronix com ...

Page 3: ...with Innovation Science and Economic Devel opment Canada s licence exempt RSS s Operation is subject to the following two conditions 1 This device may not cause interference 2 This device must accept any interference including interference that may cause undesiredoperation of the device Cet appareil contient des émetteurs récepteurs exemptés de licence conformes à l innovation RSS s exemptés de li...

Page 4: ...osing a mounting height and offset 8 Occlusion and multipathing 10 Fixing occlusion problems 10 Fixing multipath problems 2 INSTALLING THE XP20 11 Mounting the sensor 12 Aligning the sensor to the roadway 13 Assembling the cable 15 Applying silicon dielectric compound 16 Connecting the cable CONTENTS ...

Page 5: ......

Page 6: ...nting location Mounting location height and offset Choosing where to mount Figure 1 The XP20 radar footprint For best performance make sure the lanes being detected are all parallel to each other avoid on and off ramps turn lanes that angle away from the road ...

Page 7: ...ta for that vehicle is sent from the sensor In a time sensitive application like supplying a variable mes sage sign with per vehicle warning messages make sure the sensor is far enough upstream from the sign that the system has time to collect the data process it and send it to the sign by the time the vehicles reach the problem area See if you can take advantage of any existing infrastructure in ...

Page 8: ...7 18 36 30 29 19 37 31 29 19 37 32 29 19 38 33 30 19 39 34 30 19 39 35 30 20 40 36 30 20 41 37 31 20 41 38 31 21 42 39 33 21 43 40 33 22 43 41 34 22 44 42 34 22 44 43 35 22 45 44 35 23 46 45 36 23 46 46 36 23 47 47 36 24 48 48 38 24 48 49 38 24 49 50 230 39 25 to offset Note Mounting height is measured from the road s height not the bottom of the pole If installing a new pole remember that part of...

Page 9: ...oosing a higher mounting height to help avoid occlusion Don t use an offset of less than 6 ft 1 8 m Also the sensor can be up to 230 ft 70 1 m from the road but don t go out that far if you can avoid it it could lead to decreased accuracy For best results choose the mounting height in the Height column in the table If you can t just keep it somewhere in the acceptable range Occlusion and multipath...

Page 10: ...n Signal that doesn t return to sensor is scattered Signal bouncing off wall causes false detection Figure 4 Left direct path return right multipath return Multipathing occurs when a large flat surface near the sensor inter feres with detection A radar signal can bounce around several times between the surface and the vehicles before returning to the sensor This can make the sensor detect a vehicl...

Page 11: ... and put them on different RF channels Put two sensors on the same pole in the middle of the median both pointing out put them on different RF chan nels but this would mean they are next to the barrier in the median and that could cause multipath problems Fixing multipath problems Move the sensor if possible make sure it is separated from overhead signs overpasses tunnels parallel walls etc A 30 f...

Page 12: ... the XP20 11 2 Installing the XP20 Mounting the sensor Figure 5 Mounting the sensor 1 Use Band It or a similar clamping system to attach the mount to the pole 2 Attach the sensor to the mount by positioning the slot on the ...

Page 13: ...Aligning the sensor to the roadway Figure 6 Up and down positioning 1 Tilt the sensor down so the front is aimed at the center of the detection area Figure 7 Rotating the sensor on a hill incorrect left and correct right 2 Be sure the sensor is parallel to the slope of the road if the sensor is installed on a road with an uphill downhill grade rotate the sensor so that the bottom edge matches the ...

Page 14: ...and clamping ring 1 Slide the backshell nut over the end of the cable 2 Select the closest fitting rubber seal for your cable slide it over the end of the cable 3 Slide the clamping ring over the end of the cable Figure 10 Cable with ferrules on conductors 4 Strip back the cable insulation 16 mm 5 Cut off the shield braid and foil but do not remove the uninsu lated drain wire 6 You should have two...

Page 15: ...d 4 using the provided Allen wrench to make room to terminate the wires 9 Terminate the wires from the cable into the pin housing as fol lows put the white conductor in pin 2 the blue conductor in pin 3 and the drain wire in pin 4 10 Tighten the set screws Figure 12 Cable with pin housing snapped to clamping ring 11 Slide the clamping ring forward and snap it into the pin housing Note that the cla...

Page 16: ... the backshell twisting the back shell until it slips over the alignment marks in the connector insert slide the backshell nut forward over the cable and screw the two together using two 18 mm wrenches Applying silicon dielectric compound Figure 15 Applying the compound 1 Tear the tab off the tube of silicon dielectric compound that came with the sensor 2 Squeeze about a quarter of the compound on...

Page 17: ...eady run the cable through the pole Leave a small amount of slack at the top this reduces strain allows you to create a drip loop as shown above and gives you something to work with should you someday need to move the sensor to a different spot on the pole 4 If there s excess cable don t cut it as you may need it at a later time leave it in the pole Note When you run the cable through the pole don...

Page 18: ...www wavetronix com ...

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