Wavetronix SmartSensor HD (101-0415) - User Guide - Manual (Page 7)

6 INTRODUCTION • SMARTSENSOR HD USER GUIDE
The following items are not included but are necessary for installation:
˽ Sensor mount
˽ Sensor cable
Additional products may be purchased through your distributor. The following optional
items are not included unless specifically ordered (check packing list for actual inventory):
˽ Contact closure adapter such as the Click 100, 104, 110, or 112/114.
˽ Click 200 surge protector
˽ Click 201/202 AC to DC converter
˽ Click 210 circuit breaker
˽ Click 230 AC surge protector
˽ SmartSensor HD User Guide (doesn’t have to be purchased, but does have to be re-
quested from Wavetronix)
Selecting a Mounting Location
Consider the following guidelines when selecting a mounting location:
˽ Lane Coverage – Sensor mounting locations should be selected so that all monitored
lanes are within 6 to 250 ft. (1.8 to 76.2 m) of the sensor and run parallel with each
other. Multiple sensors should be considered if more than 10 lanes need to be simulta-
neously monitored. If lanes do not need to be simultaneously monitored, up to 22 lanes
can be configured for collection by a single sensor.
˽ Parallel Lanes – When the sensor is used to collect both mainline and ramp data, the
pole position should be selected so that the on and off ramp lanes run parallel with
the mainline. If lanes are not parallel, installation of multiple SmartSensor HD units
should be considered.
˽ Sensors on the Same Pole – When multiple sensors are mounted on the same pole,
they will not be subject to interference if they are configured to operate using different
RF channels and are separated vertically by a few feet. The higher sensor would typi-
cally be used for the lanes farther from the pole in order to minimize occlusion.
˽ Sensors on Opposing Poles – SmartSensor HD units facing each other on opposing
poles should operate on different RF channels and be separated by a 70-ft. (21.3-m)
lateral offset, if possible.
˽ Line of Sight – The SmartSensor HD is designed to work accurately in the presence of
barriers, but in general if there is an alternate mounting location that would avoid any
type of structural occlusion, this is preferred. Avoid occlusion by trees, signs, and other
roadside structures.
˽ Neighboring Structures and Parallel Walls – To eliminate the risk of performance
degradation, the sensor locations should have a 30-ft. (9.1-m) lateral separation from
overhead signs, overpasses, tunnels, parallel walls, and parallel parked vehicles in order
to avoid multiple reflection paths from a single vehicle. This separation removes the
objects from the antenna pattern of the sensor. In practice the sensor has been mounted
much closer to reflecting objects with minimal impact in sensor performance. For ex-