Mechatronics eurosens DSS User manual

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LOAD CONTROLLER
eurosens DSS
User manual

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USER MANUAL
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CONTENTS
1 General information 5
2 Specification of eurosens DSS 6
3 Installation of eurosens DSS 7
3.1 Choosing installation place 7
3.2 Installation recommendations 10
4 Connection of eurosens DSS 12
5 Settings and calibration of eurosens DSS 14
5.1 Connection procedure 14
5.2 Calibration of sensor 16
5.2.1 Sensor reset 16
5.2.2 Sensor calibration on server side 18
5.2.3 Calibration on sensor side 18
5.2.4 Support of several calibration tables 20
5.3 Sensor readings 20
5.4 Sensor settings 21
6 Additional information 23
6.1 Storage 23
6.2 Transportation 23
6.3 Disposal 23
6.4 Technical support 24
6.5 Contacts 24
Appendix 1. Dimensions of eurosens DSS 25

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TERMS AND DEFINITIONS:
Load controller/axle load sensor/sensor –eurosens DSS.
Calibration –changing of sensor settings.
PC –personal computer.
Vehicle –a truck, tractor, bus, locomotive, river boat, diesel genset, stationary tank,
boiler/burner.

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1GENERAL INFORMATION
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Load controller (axle load sensor) eurosens DSS (fig. 1.1) is used to determine the
axle load of a vehicle by measuring the microdeformations of the load-bearing
elements, such as an axle or suspension arms.
fig. 1.1. eurosens DSS
The load controller consists of a non-separable sensor case, fixed to the base, and
supports. During installation the sensor case is precisely positioned in the supports
with two pins and fixed with screws.

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2SPECIFICATION OF eurosens DSS
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Table 1
Parameter
Value
Power supply, V
10 - 50
Max current consumption, mA
50 (at 12 V)
Reverse polarity protection
Yes
Ambient operating temperature, °C
-40 - +85
Output interface
CAN
Data interface
CAN 2.0, J1939
Ingress protection rating
IP 67
Dimensions, mm
65x45x26
Measurement error of eurosens DSS depends on the microstrain of the
element the sensor is fixed on. The more the load-bearing element is
deformed under load, the more sensitive the sensor is to axle load
changes.

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3INSTALLATION OF eurosens DSS
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3.1 CHOOSING INSTALLATION PLACE
When choosing an installation place, consider the required dimensions of the
mounting pads and the axle deformation zones shown in fig. 3.1 and fig. 3.2.
fig. 3.1. Typical deformation zones of the front axle
fig. 3.2. Typical deformation zones of the rear (driving) axle
compression
decompression
leaf spring
leaf spring
compression
decompression
leaf spring
leaf spring

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•It is possible to install one sensor eurosens DSS in the center of the non-
driving (front) axle (fig. 3.3), or two sensors –each on the left and right
side of the axle (fig. 3.4).
If the sensor is installed in the center of the axle (fig. 3.3), the predicted
deformation (and resolution) is smaller.
When installing on the side of the axle, it is highly recommended to
install two sensors eurosens DSS –each on the left and right side of the
axle (fig. 3.4), since the uneven loading of a vehicle as well as the roll of
a vehicle can distort the values.
fig. 3.3. Installing the sensor in the center of the front axle
fig. 3.4. Installing two sensors on the front axle

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•When installing on the rear axle, the preferred installation location is the
section between the leaf spring mount and the wheel. In this case two
sensors eurosens DSS must be installed –each on the left and right side
of a vehicle (fig. 3.5).
The axle deformation is maximum in this section, as well as sensor
sensitivity. If installation is not possible in this section, the sensor can be
installed as shown in fig. 3.6.
eurosens DSS can be installed in both compression and tension zones,
above or below the axle.
fig. 3.5. Sensor installation between leaf spring mount and wheel
fig. 3.6. Sensor installation between gear housing and leaf spring mount

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3.2 INSTALLATION RECOMMENDATIONS
1) Clean the sensor installation site: degrease, remove excess moisture and all
kinds of non-metallic objects, remove rust and other contaminants.
2) Cleaning can be done manually by using metal brushes, files, emery paper,
or by using a grinder.
Surface cleaning is a very important step, since any contaminations can
lead to the pores and cracks, metal stress and decrease in mount quality.
3) Install the mounting pads with the help of a conductor and fix them using
spot welding.
4) Remove conductor and weld the mounting pads (fig. 3.7).
fig. 3.7. Installation of sensor pads
sensor mounting pads,
spot welding
conductor