R134/2006-A-CZ1-26.01
OIML Certificate No.
R134/2006-A-CZ1-26.01
| OIML Member State Czech Republic | OIML Certificate No. R134/2006-A-CZ1-26.01 |
| OIML CERTIFICATE ISSUED UNDER SCHEME A | |
| OIML Issuing Authority Name: Czech Metrology Institute Address: Okružní 31 638 00 Brno Czech Republic Person responsible: Jan Kalandra | |
| Applicant Name: CROSS Zlín, a.s. Address: Prümyslová 1395 763 02 Zlín-Malenovice Czech Republic | |
| Manufacturer Name: CROSS Zlín, a.s. Address: Prümyslová 1395 763 02 Zlín-Malenovice Czech Republic | |
| Identification of the certified type (the detailed characteristics will be defined in the additional pages) Automatic instrument for weighing road vehicles in motion and measuring axle loads type: CrossWIM | |
| Designation of the module (if applicable) | |
| This OIML Certificate attests the conformity of the above identified type (represented by the sample(s) identified in the OIML type evaluation report) with the requirements of the following Recommendation of the International Organization of Legal Metrology (OIML): OIML R 134 Edition (year): 2006 | |
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| Revision No. | Date | Description of the modification |
|---|---|---|
| - | 29 May 2026 | Issuing of certificate |
Important note: Apart from the mention of the Certificate's reference number and the name of the OIML Member State in which the Certificate is issued, partial quotation of the Certificate and of the associated OIML type evaluation report(s) is not permitted, although either may be reproduced in full.
1 INSTRUMENT NAME AND DESCRIPTION
CrossWIM is a weighing instrument designed for determining the weight of axles and the total weight (gross vehicle weight) of road vehicles.
1.1 Essential parts
Weighing sensors:
The Lineas 9195GC is a quartz sensor to measure the wheel and axle loads and to determine the vehicle gross weight under rolling traffic conditions. The sensor is installed in the road pavement and provides highly accurate measurement signals.
Figure 1 Lineas 9195GC sensor
Charge amplifiers for weighing sensors:
The charge amplifier provides well-conditioned voltage output signals for further processing by a data acquisition system. The charge amplifiers are available in different versions with 2, 4 and 8 channels. To measure wheel loads, all sensors are connected to a separate input channel.
WIM AD cards:
The WIM AD electronics consist of a motherboard connected to the CrossWIM backplane using a connector located on the edge of the card. On the front of the board there is a panel with signalling diodes and a reset button. Sensor variants from Kistler and piezo sensors can be connected to this card. The WIM AD card is used to measure up to 8 analogue signals output from a charge amplifier.
WIM data processor unit:
The processor unit consists of an industrial computer with the manufacturer's SW installed. The unit is an integral part of the CrossWIM unit. The processor unit downloads data from other cards via the Ethernet bus and CAN bus. From the input connectors, only the RJ-45 connector for connection to a computer network is used for the system function. Other connectors are inactive and are used for service purposes. Regarding buttons, there are buttons on the individual cards for restarting individual cards.
The data is stored in the WIM data processor unit memory for the following operations (indication, printing, data transfer, checksums, etc.) on the hard disk. The stored data is protected against intentional and unintentional changes during the transfer and/or storage process and contains all relevant information needed to reconstruct previous measurements. The data stored on removable storage media for storing measurement data are secured with a code key, and their identification, integrity and authenticity are ensured. The stored data can also be the subject of subsequent operations (indication, printing, transmission, checksums, etc.).
Induction loops + FeigVEK S4C:
The WIM FEIG unit is a four-channel loop detector for connecting inductive loops to detect transits of the vehicles. On the front there is a panel with a reset button and signalling diodes. It works on the principle of signal evaluation from a pair of inductive loops and the provided data are passed to superior systems.
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Depth temperature sensor
These wired resistance temperature sensors are designed for measuring the temperature in the road and are installed to a depth of 5 to 10 cm, it is possible to use grooves of drain cables from different types of sensors or install them separately in the road according to the design documentation. The temperature sensor is connected directly to the WIM AD via a CrossWIM backplane, no additional external devices are required.
Power supply:
The supply voltage is 230 V AC, which is transformed and rectified by a suitable power supply to a voltage of 24 V DC. This is fed to the power input of the CrossWIM unit.
1.2 Weighing area
The installation site must feature a stable, non-deformable apron (concrete, asphalt, or similar) extending upstream and downstream of the weighing platform, with a length of at least 200 m upstream and 50 m downstream. The longitudinal slope must be negligible in any case less than 1%, while the transverse slope should be minimized to strictly what is needed for drainage.
Figure 2 Example of geometric arrangement of Kistler sensors and induction loops in a two-row variant in one
1.3 Principle of operation
The sensor is installed permanently into the road. When a force is applied to the sensor surface, the quartz elements yield an electrical charge signal proportional to the applied force. The sensor Type 9195GC requires an external charge amplifier (Type 5163A). The charge amplifier converts the electric charge into a proportional voltage signal which then can be further processed.
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2 MAIN METROLOGICAL CHARACTERISTICS
| Accuracy class for Vehicle mass | 10 |
| Accuracy class for Axle load and Axle group load | F |
| MaxGVW | 900000kg |
| MinGVW | 3500kg |
| Maxaxle | 30000kg |
| Minaxle | 1000kg |
| Maximum number of axlesAmax | 30 |
| Scale intervald | 50kg |
| Operating speed range | 30km/h-100km/h |
| Temperature range | -40℃-+60℃ |
| Number of sensor rows | 2,3,4 |
Table 1: CrossWIM metrological characteristics
The weighing range for the total vehicle weight (Gross vehicle weight - GVW) is determined as the product of the weighing range of one axle and the maximum number of weighable axles $ \left( \mathrm{A}_{\mathrm{m a x}} \right) $
$$ \mathrm {M a x} _ {\mathrm {G V W}} = \mathrm {M a x} _ {\mathrm {a x l e}} * \mathrm {A} _ {\max } $$
3 SOFTWARE
The legally relevant software of the scales and its security meet the requirements of the OIML R134-1:2006 and WELMEC 7.2:2023 software guide.
3.1 Interfaces and optional peripheral devices
Device for optical identification of vehicles
The weighing system is equipped with an image documentation unit, which is used for generating a photo documentation of the situation during weighing with reliable identification of the weighed vehicle. The image documentation unit operates in automatic mode. It is possible to set limit weight and speed parameters for acquiring an image document. The situation when the vehicle is weighed is captured by a digital camera. The outputs form individual digital images, which are stored in a data memory. Image document processing is performed using the CrossWIM application.
4 VERIFICATION AND SECURING OF THE WEIGHING INSTRUMENT
4.1 Securing components and verification marks
The metrological tests must be carried out according to national applicable regulations.
Securing the Kistler amplifier unit
With the help of official marks (self-adhesive labels) the heads of at least two screws are secured against removing.
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Figure 3 Sealing of charge amplifier
Securing of other components
From the point of view of data processing, it contains three basic types components - main processor unit, cards for reading analogue signals from sensors and loop detectors.
Due to metrological security, a protective cover is installed in front of the front panels, preventing the replacement of components, connection of other devices and change of the firmware of individual cards. The protective cover of the front panel can be secured against its disassembly on the sides with an official mark in the form of a hanging seal, or with self-adhesive labels on its edges.
Figure 4 Sealing of CrossWIM unit
Depending on the method of securing the integrity of individual measuring systems and the design of the load cell input boards/cards, another suitable method of securing them can be chosen using official marks, provided that it sufficiently protects their integrity and the metrological properties of the measuring instrument from being influenced.
4.1.1 Main instrument label
| Manufacturer | CROSS Zlín a.s. |
| Type designation | CrossWIM |
| Serial number | xxx/yyyy |
| Maximum transit speed | 255km/h |
| Direction of weighing | (if applicable) |
| Electrical power supply voltage | 230VAC |
| Electrical power supply frequency | 50Hz |
| Temperature range | -40℃；+60℃ |
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| Software version | 3.9.2 |
| Accuracy class vehicle mass | 10 |
| Accuracy class single-axle (where applicable) | F |
| Accuracy class axle-group (where applicable) | F |
| Maximum capacity (axle): Max= | 30000kg |
| Minimum capacity (axle): Min= | 1000kg |
| Maximum capacity (vehicle): Max= | 900000kg |
| Minimum capacity (vehicle): Min= | 3500kg |
| Scale interval: d= | 50kg |
| Maximum operating speed: $v_{\mathrm{max}}=$ | 100km/h |
| Minimum operating speed: $v_{\mathrm{min}}=$ | 30km/h |
| Maximum number of axles per vehicle: $n_{\mathrm{max}}=$ | 30 |
| OIML certificate number | R134/2006-A-CZ1-26.01 |
| Type approval sign in accordance with national regulations |
Table 2: Main label of the weighing instrument
The main label is secured with a verification mark.
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