EMX Industries, Inc. CarSense 303 User manual

4564 Johnston Parkway, Cleveland, Ohio 44128
P. 800 426 9912 F. 216 518 9884
Sales Inquiries: [e-mail]
Technical Support: [e-mail]
www.emxinc.com
CarSense 303
M A G N E T O R E S I T I V E V E H I C L E D E T E C T O R
TM
O P E R A T I N G I N S T R U C T I O N S
Operating Instructions

CarSense 303™ Operating Instructions 1
Document no. 10310104 Revision 1.8 11/1/2016
Contents
Cautions and Warnings
2
Product Overview
2
Specifications
3
Operation
4
Controls and Indicators
7
Connections
8
Troubleshooting
8
Installation
9
Ordering Information
12

CarSense 303™ Operating Instructions 2
Document no. 10310104 Revision 1.8 11/1/2016
CE REQUIREMENT: Use CE rated power supply for CE compliance providing
suppression as specified by EN61000-4-5.
Not to be used in 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.
Product Overview
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.
Cautions and Warnings
CS303 Controller
CS303 sensor in probe (top) and
flat pack (bottom) configurations
CS303-L Logic Interface

CarSense 303™ Operating Instructions 3
Document no. 10310104 Revision 1.8 11/1/2016
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
-40oC…82oC (-40oF…180oF) 0…95% relative humidity
Housing Material
DB: PVC
FP: Polyolefin
ABS
Environmental Rating
IP69K
IP30
Power Supply
12-30 VDC
12-30 VDC and 24 VAC
Current Draw
10 mA max
40 mA max
Supply Protection Circuitry
Reverse polarity and fuse protected
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

CarSense 303™ Operating Instructions 4
Document no. 10310104 Revision 1.8 11/1/2016
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.
X Axis Sensitivity
Y Axis Sensitivity
Z Axis Sensitivity

CarSense 303™ Operating Instructions 5
Document no. 10310104 Revision 1.8 11/1/2016
Operation (continued)
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:
1. Calibrate the sensor with the disturbance removed.
2. Move the disturbing object into position
3. Select each axis individually, observing the ULTRAMETER™ display for each.
4. 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, 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, then adjust the sensitivity setting
(rotary switch) to the displayed position.
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.

CarSense 303™ Operating Instructions 6
Document no. 10310104 Revision 1.8 11/1/2016
Operation (continued)
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 status of switch 5).
Delay
The delay setting provides a 2 second delay before activating after the sensitivity threshold
is met.

CarSense 303™ Operating Instructions 7
Document no. 10310104 Revision 1.8 11/1/2016
Controls and Indicators
PRESENCE
DETECT-ON-STOP (DOS®)
OUTPUT
PULSE ON ENTRY/EXIT
DELAY
AXES SETTINGS
SENSITIVITY SETTING
DETECT
ULTRAMETER™ SENSITIVITY DISPLAY
Indicates sensitivity setting required to detect vehicle
SENSOR CALIBRATION/RESET
Press to calibrate and reset error status
DIP switch position 8
Normal
on
Infinite
off
DIP switch position 7
DOS on
on
DOS off
off
DIP switch position 6
Pulse
on
Presence
off
DIP switch position 5
Pulse on exit
on
Pulse on entry
off
DIP switch position 4
2 second delay on
on
2 second delay off
off
DIP switch position
Axis
3
2
1
X
X
Y
X
Z
X
Position 0…….9
Sensitivity
low……….high
Red LED
Presence detected
on
No presence
off

CarSense 303™ Operating Instructions 8
Document no. 10310104 Revision 1.8 11/1/2016
Connections
Terminal
Description
Shielded Cable
1
Power (12 – 24 VDC/VAC)
-
2
Power (12 – 24 VDC/VAC)
-
3
Relay - NO
-
4
Relay - COM
-
5
Relay - NC
-
6
Open collector through-put
WHITE
7
Open collector through-put
8
Sensor communications A
RED
9
Sensor communications B
GREEN
10
V+ (to sensor)
BROWN
11
V- (logic common)
BLUE
!
The shield (bare) wire on the probe 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
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
Insufficient supply voltage
Make sure the power supply is
working correctly and properly rated
according to connections table (see
above)

CarSense 303™ Operating Instructions 9
Document no. 10310104 Revision 1.8 11/1/2016
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.
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.
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.
Installation

CarSense 303™ Operating Instructions 10
Document no. 10310104 Revision 1.8 11/1/2016
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.
Sensitive area vs. Sensitivity adjustment
Installation (continued)
Area (ft.)
Height at
the center
(ft)
Sensitivity
(adjustment
setting)
1x1
1
2
2x2
2
3
3x3
3
4
4x4
4
6
5x5
5
7

CarSense 303™ Operating Instructions 11
Document no. 10310104 Revision 1.8 11/1/2016
Figure 1 - CS303 Sensitivity Data
Figure 2 - CS303 Sensitivity Data
-2
0
2
4
6
8
10
12
-7-6-5-4-3-2-101234
ULTRAMETERTM Display Value
Distance from sensor to front bumper (meters)
CS303 Sensitivity vs. Distance: Under Vehicle
Sensitivity
Baseline
0
1
2
3
4
5
6
7
8
9
10
11
0123456
ULTRAMETERTM Display Value
Distance from sensor to side of vehicle (feet)
CS303 Sensitivity vs. Distance: Side of Vehicle
Sensitivity
Baseline
Installation (continued)

CarSense 303™ Operating Instructions 12
Document no. 10310104 Revision 1.8 11/1/2016
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 a period of 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 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. 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 Industries Inc. be liable for damages, including but not
limited to damages resulting from non-conformity, defect in material or
workmanship.
Effective date: January 1st, 2002

CarSense 303™ Operating Instructions 13
Document no. 10310104 Revision 1.8 11/1/2016
4564 Johnston Parkway
Cleveland, Ohio 44128
United States of America
www.emxinc.com
Technical Support: [phone]
[email protected]
Sales: [phone]
Fax: [phone]
[email protected]