Instruction Manual, Type 9195E - WIM

Requirements to Hard- & Software
7. Requirements to Hard- & Software
7.1 Electronics
7.2 Software
Accuracy
Each type of WIM electronics must be capable of
performing the indicated functions within the accuracy
class with respect to the application, shown in the ASTM
(Type I – IV) and European standards (classes A5 – D25).
Temperature range
All electronic devices and components used must be able
to operate in the temperature range –28 °C/+50 °C
(ASTM) or –20 °C/+60 °C (EU). The stated accuracy
should be maintained for ambient air temperatures at the
WIM site!
Humidity
Relative humidity in the range of 0 to 90 % (not condensing)
must be supported. Special conditions in
tropical countries must be checked from site to site
before planning.
Lightning, electrical and magnetic field
The electronics must be protected against lightning as
well as against any external electrical or magnetic fields.
High voltage, power line
It is recommended that systems should not be installed
under high voltage power lines, or close to radio transmitting
and railway tracks.
The WIM software should record at least the following
information:
Wheel load
Axle load
Axle group load
Gross vehicle weight
Speed
Center-to-center spacing between axles
Vehicle Class (via axle arrangement – distance)*
Site identification code
Lane and direction of travel
Date and time of passage
Sequential vehicle record number
Wheelbase (front-most to rear-most axle)
Vehicle length
Violation code
* Classification scheme – nearly every country, state or
road administration has a preferred classification scheme
for vehicles in its area of operation or responsibility.
According to the product being used, one or many of these
schemes will be provided in the WIM equipment.
002-300e-07.04 (200-348e) Page 15