EMX CarSense 303 Vehicle Detector Instruction Manual

: June 17, 2024
: EMX

Table of Contents

EMX CarSense 303 Vehicle Detector
Product Overview
Specifications
Operation
Controls and Indicators
Connections
Troubleshooting
Installation
Warranty
FAQ
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

EMX CarSense 303 Vehicle Detector

EMX-CarSense-303-Vehicle-Detector-product

Cautions and Warnings

CE REQUIREMENT: Use CE-rated power supply for CE compliance providing suppression as specified by EN61000-4-5.
Not to be used in personnel safety applications.

IMPORTANT: This product is an accessory or part of a system. Always read and follow the manufacturer’s instructions for the equipment before connecting this product. Comply with all applicable codes and safety regulations. Failure to do so may result in damage, injury, or death.

WARNING: DO NOT INSTALL THE SENSOR DIRECTLY INTO HOT ASPHALT, see the installation section
WARNING: Always use photoelectric protection when using the CS303 as a closing detector on a parking arm operator to prevent accidental closing on a car.

Product Overview

EMX-CarSense-303-Vehicle-Detector-fig-1

The CarSense 303 features advanced 3-axis, magnetoresistive sensing technology. The sensor measures Earth’s magnetic field and responds to disturbances caused by ferrous objects. The CS303 combines this exciting new technology with a field-proven hardware platform to produce a high- sensitivity, compact, cost-effective solution for reliable vehicle detection. Three sensing elements provide magnetic field measurement in the X, Y and Z axes, improving detection sensitivity.

Three-dimensional presence detection of vehicles
Select X, Y and/or Z axis independently
Stand-alone sensor with solid-state output
Sensor stores ambient background and settings in non-volatile memory
Remote control module for programming and additional relay contact output
Fast response for high-speed detection
Easy, low-cost installation
ULTRAMETERTM display indicates the sensitivity setting required to detect a vehicle
Logic Interface available for extended detection, A/B directional logic and more
Detect-On-Stop (DOS®) feature will allow detection only when a vehicle has come to a complete stop on the sensor. This is a worldwide unique feature to EMX detectors. It is a major advantage if you want to ignore cross traffic in tight spaces.

NOTE: When power is applied to the CS303-C-1 controller and a CS303-DB or FP sensor is connected, the settings on the controller will be sent to the sensor. The sensor stores these settings.

Specifications

| Sensor| Remote
---|---|---
Sensing Technology| 3-axis magnetoresistive
Sensitivity| 10 levels: 0-9
Axis Sensitivity| 512 counts/Gauss (typical)
Environmental Tracking| Automatic compensation
Local Magnetic Field Calibration| Averages local field signature in any sensor orientation
Detection Range| 1.5 m (5ft)
Response Time| 125 ms
Power/Fault Indicator| Green LED
Detect Indicator| Red LED
Detect-On-Stop (DOS ®)| Requires vehicle to stop for a minimum of 1 second (1-2s typical)

Outputs

|

NPN (open collector)

| SPDT relay NPN (open collector)

Output Ratings

|

50 mA

| Relay: 1A @ 24 VDC…120 VAC

NPN: 50 mA (max)

Connection| 5 conductor direct burial| 10 position screw terminal
Operating Environment| -40o C…82o C (-40o F…180o F) 0…95% relative humidity

Housing Material

| DB: PVC

FP: Polyolefin

|

ABS

Dimensions

| DB: 102mm (4.0”)

x 27mm (1.0”)

FP: 80mm (3.0”)

x 20mm (0.8”) x 9mm (0.35”)

|

76mm (3.0”) x 22mm (0.9”)

x 70mm (2.75”)

Weight

| DB: 43g (0.09 lbs.)

FP: 23g (0.05 lbs.)

|

68g (0.15 lbs.)

Certifications| CE| CE

Operation

Power Up: The green LED indicates that the detector is powered and operational. Upon first power-up, the detector will need to be calibrated to the local magnetic field (see Controls and Indicators).
Axis Settings: The heart of the CS303 is the 3-axis magnetoresistive sensor. This state-of-the-art technology integrates three separate sensing elements, allowing for individual tailoring of the detector’s sensitivity according to its environment. The sensor can detect disturbances in all 3 axes (X, Y, and Z), and allows you to select any combination required for your unique installation. By “turning off” the axis in the direction of a disturbance, the sensitivity in that direction is reduced, while maintaining the sensitivity of the other two axes.

The prior illustrations indicate the areas that each axis will be most sensitive to. For most applications, activate all three axes for the greatest sensitivity and maximum detection distance.
For unique installation challenges, such as moving gates or cross traffic that fall within the sensitive directions shown, turn off that axis to minimize the sensitivity from those disturbances.

Note that the flat pack configuration allows for the best implementation of these settings. The only known axis in the probe configuration will be the Y, as its orientation does not change as the sensor is rotated about the cable end (see the vertical installation diagram). To find the axis most affected by an unwanted disturbance when using the round probe configuration, perform the following procedure:

Calibrate the sensor with the disturbance removed.
Move the disturbing object into position
Select each axis individually, observing the ULTRAMETER™ display for each.
Turn off the axis that causes the lowest number to appear due to the disturbance.

ULTRAMETER™ Sensitivity Display
The ULTRAMETER™ sensitivity display simplifies the installation process by displaying the sensitivity setting required to detect a vehicle near the sensor. To use this feature, observe the display while a vehicle is moving into position near the sensor module, note the number displayed, and then adjust the sensitivity setting (rotary switch) to the displayed position.

During normal operation, when a vehicle is not on near the sensor, the display is blank. The effects of cross-traffic interference can be observed on the display when the sensing area is vacant.

Sensitivity Setting
The 10-position rotary switch allows for precise adjustment of detection level. The sensitivity level increases from position 0 thru 9 with position 0 being the lowest sensitivity. Typical applications require a setting of 3 or 4. The ULTRAMETER™ sensitivity display simplifies the installation process by displaying the sensitivity setting required to detect a vehicle near the sensor. To use this feature, observe the display while a vehicle is moving into position near the sensor, note the number displayed, and then adjust the sensitivity setting (rotary switch) to the displayed position. This adjustment applies to all axes.

Sensor Calibration/Reset
Pressing the reset switch calibrates the sensor to the local magnetic field. This must be used whenever the sensor is moved from its position and may be necessary if the sensor is exposed to a strong magnetic field.

Detect-On-Stop (DOS® )
The Detect-On-Stop feature requires that a vehicle must come to a complete stop near the sensor for a minimum of 1 second (typical 1-2s) before the output activates.

Presence Output
The presence setting provides two selections: the output can be set for Infinite Presence or Normal Presence. Infinite Presence causes the output to remain in detect mode as long as the vehicle remains near the sensor. Normal Presence causes the output to reset after 5 minutes. DO NOT USE THE NORMAL PRESENCE SETTING UNLESS THE OPENING IS PROTECTED BY A SECONDARY SAFETY DEVICE SUCH AS THE EMX IRB-4X PHOTOEYE.

Pulse Output
When the pulse output mode is selected, the output will be activated for approximately 500ms on vehicle entry or exit (depending on the status of switch 5).

Delay
The delay setting provides a 2-second delay before activating after the sensitivity threshold is met.

Controls and Indicators

Connections

EMX-CarSense-303-Vehicle-Detector-fig-3

Note: Strip wires 1/8” to ¼”, refer to operator instructions for operator connections.

The shield (bare) wire on the sensor cable should be connected to Earth ground to ensure noise immunity.

Troubleshooting

Symptom	Possible cause	Solution

Green LED flashes half second on, half second off

“E” “1” flashes on display

| ****

Communication failure

| 1. Check communications and power wiring to sensor module

2. Cycle power to remote and sensor module

Green LED flashes, 1 fast| Previous communication failure| Check communications and power wiring to sensor module

No detection

| ****

Sensitivity set too low

| With vehicle within desired proximity, observe ULTRAMETERTM display to find the minimum sensitivity required for detection
Green and red LED’s flash simultaneously

“E” “2” flashes on display

| ****

Insufficient supply voltage

| Make sure the power supply is working correctly and properly rated according to connections table (see above)

Installation

Probe

HORIZONTAL INSTALLATION
Horizontal installation can be accomplished by cutting out a 3” x 1.5” x 5” area in the pavement, with a 5/16” x 2” deep saw cut exiting the cutout for the communications/power cable. Backer rod should be place at a minimum of every 10-14”. Pavement sealant can then be used to fill the cable and probe cavities.

EMX-CarSense-303-Vehicle-Detector-fig-6

VERTICAL INSTALLATION
For vertical installation, drill a 7” x 1.5” hole in the surface with a 5/16” x 2” deep saw cut exiting the cutout for the communications/power cable. Backer rod should be place at a minimum of every 10-14”. Pavement sealant can then be used to fill the cable and probe cavities.

EMX-CarSense-303-Vehicle-Detector-fig-7

Flat Pack

HORIZONTAL INSTALLATION
The flat pack requires a 2” x 3/8” x 6” cut in the pavement for the sensor, with a 5/16” x 2” deep saw cut for the cable lead. Backer rod should be place at a minimum of every 10-14”. Pavement sealant can then be used to fill the cable and sensor cavities.

EMX-CarSense-303-Vehicle-Detector-fig-8

ABOVE-GRADE MOUNTING
When mounting above grade, make sure that the sensor is placed at a height to maximize the sensitivity of the detector. This typically means installing it at door level to prevent dropouts. The maximum distance maintained between the sensor and the vehicle should be less than five feet (see CS303 Sensitivity vs. Distance graph on the following page).

The sensor should be secured to the target object to minimize any movement that might provide false detections or dropouts. Securing the probe may be accomplished with at least one 1” ID pipe/conduit strap, such as Cantex part number 5133736. If plastic straps are not available, steel may be used, but should be placed towards the cable-end of the probe to avoid sensitivity- related issues. The flat pack can be secured with cable ties and suitable mounts.
The sensor can be installed inside of any non-ferrous architectural structures, such as fiberglass, plastic, aluminum, etc.
Cabling should be enclosed in conduit to minimize environmental degradation.

EMX-CarSense-303-Vehicle-Detector-fig-10

CS303 CLOSING SENSOR
Barrier Arm Installation

EMX-CarSense-303-Vehicle-Detector-fig-11

CS303 VEHICLE SENSOR
Loop Detector Replacement

EMX-CarSense-303-Vehicle-Detector-fig-12

CS303 Sensitivity vs. Distance: Under Vehicle

EMX-CarSense-303-Vehicle-Detector-fig-13

CS303 Sensitivity vs. Distance: Side of Vehicle

EMX-CarSense-303-Vehicle-Detector-fig-14

Sensitive area vs. Sensitivity adjustment

Area (ft.)

| Height at the center

(ft)

| Sensitivity (adjustment

setting)

---|---|---
1×1| 1| 2
2×2| 2| 3
3×3| 3| 4
4×4| 4| 6
5×5| 5| 7

Ordering Information

CS303-C-1 Control Unit
CS303-DB-50 Direct Burial Sensor, Probe, 50’
CS303-DB-100 Direct Burial Sensor, Probe, 100’
CS303-FP-50 Direct Burial Sensor, Flat Pack, 50’
CS303-FP-100 Direct Burial Sensor, Flat Pack, 100’
CS303-L Logic Interface

Warranty

EMX Industries Incorporated warrants all products to be free of defects in materials and workmanship for two years under normal use and service from the date of sale to our customer. This warranty does not cover normal wear and tear, abuse, misuse, overloading, altered products, damage caused by incorrect connections, lightning damage, or use other than the intended design.

There is no warranty of merchantability. There are no warranties expressed or implied or any affirmation of fact or representation except as set forth herein.
EMX Industries Inc. is sole responsibility and liability and the purchaser’s exclusive remedy shall be limited to the repair or replacement at EMX Industries option of a part or parts found not conforming to the warranty. In no event shall EMX

FAQ

Q: What is the operating voltage range for the CarSense 303TM?
- A: The CarSense 303TM operates on a voltage range of 12-30 VDC.
Q: What is the sensing technology used in the CarSense 303TM?
- A: The CarSense 303TM utilizes advanced 3-axis magnetoresistive sensing technology to detect disturbances in Earth’s magnetic field caused by ferrous objects.
Q: Can the CarSense 303TM ignore cross-traffic in tight spaces?
- A: Yes, the CarSense 303TM includes a unique feature that allows it to ignore cross traffic in tight spaces, providing a major advantage in certain applications.

Industries Inc. be liable for damages, including but not limited to

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