Containers weighing  

George Enache
0040 745 - 01 85 01
Head office

Carpenului nr. 22
100430 Ploiesti
Prahova county
Engineers and

Prundului nr. 11
805300 Tecuci
Galati county

Attitude. Ideas. Directing.
Action. Scene.

Commercial weighing scales guarrantees the correct flow of goods.

Choose a trademark scale.

Automatic catchweigher instrument designated the COMPASS

Having the following characteristics:
Maximum capacity   Max     ≤ 60,000 kg
Minimum capacity    Min     ≥ 400 kg
Scale interval                        e          ≥ 20 kg
Accuracy class         Y(a)

The FLINTAB COMPASS is an automatic catchweigher designed to statically weigh shipping containers with no operator intervention. The container can be placed on the weighing platform by crane (Figure 1) or truck (Figure 2), once stable, the container weight and identification are captured and stored before an external display informs the crane/truck operator that the cycle is complete.


Construction and operation

The instrument comprises a weight indicator type ITx000E, ITx000ET, or ITx000M (where x = 3, 4, 6 or 8) (Figure 3), manufactured by SysTec, connected to a weighing platform comprising 4, 6 or 8 load cells.

The indicator is configured as a single-interval instrument.

Correct positioning of the truck is ensured by infrared barriers.

A traffic light and external display (Figure 4) show the crane/truck operator when the container/truck is in position and when the weighing cycle is complete.

The Automatic Container Code Recognition (ACCR) system captures the container identification code. (A second camera captures the truck license number for trucks with containers.)

The automatic terminal allows data transfer between modules: weighing platform, infrared barriers, external display and traffic lights, system interface, and Flintab server.

The System Interface allows the bidirectional interface of the COMPASS system with the system operator/technician or the maintenance engineer.

Weighing and container identification data (and truck license number for trucks with containers) is transmitted via Ethernet to the on-site Flintab server. The on-site Flintab server is connected to the internet diagnosis purposes (errors/malfunctions).

An additional functionality calculates the centre of gravity of the shipping container; this is not covered under this certificate.


The instrument has the following devices:

  • Semi-automatic zero setting (≤ 4% Max)
  • Zero tracking (≤ 4% Max)
  • Initial zero setting (≤ 20% Max)
  • Semi-automatic subtractive tare weighing (≤ Max)
  • Pre-set tare (≤ Max)
  • Data storage device


The COMPASS instrument has the following technical characteristics.


Crane configuration

Truck configuration

Max capacity (Max)

40,000 kg

60,000 kg

Number of verification scale intervals (n)



Scale interval (e)

20 kg

Minimum capacity (Min)

400 kg

Number of load cells (nLC)

4, 6, or 8

6 or 8

Load cell model

Flintec RC3D digital load cells*

Load cell capacity (Emax)

30,000 kg

Accuracy class


Climatic environment

Open, condensing (load cells)
Closed, non-condensing (indicator)

Temperature range

-10 to +40 oC

Electromagnetic environment


*Alternatively, any compatible analogue load cells can be used providing the following conditions are met:

  • There is a respective OIML Certificate of Conformity (R60), or a test or parts certificate (EN45501) issued for the load cell by a Notified Body responsible for type examination under Directive 2014/31/EU.
  • The certificate contains the load cell types and the necessary load cell data required for the manufacturer’s declaration of compatibility of modules (WELMEC 2, 2015, No 10), and any particular installation requirements.  A load cell marked NH is allowed only if humidity testing to EN45501 has been conducted on this load cell.
  • The compatibility of the load cells and indicator is established by the manufacturer by means of the compatibility of modules calculation, contained in the above WELMEC 2 document, at the time of verification or declaration of EU conformity of type.
  • The load cell transmission must conform to one of the examples shown in the WELMEC Guide 2.4, “Guide for Load cells”.

The technical data for the indicator is as follows:

Power supply

110 – 240 VAC, 50 Hz
12 – 30 VDC

Maximum number of scale intervals


Load cell excitation voltage

5 V DC

Minimum load cell impedance

21 W

Maximum load cell impedance

4.5 kW

Minimum input voltage per verification scale interval

0.33 μV/div

Measuring range minimum voltage

0.3 mV

Measuring range maximum voltage

30 mV

Fraction of maximum permissible error

Pind = 0.5
(Pind = 0 for digital load cells)

Operating temperature range

-10 / + 40 °C

Load cell connection

4 or 6 wire

Maximum Load cell cable length (junction box to indicator)

270 m/mm2


The legally relevant software is held on the EPROM. Download of software and access to the legally relevant parameters is prevented by fixing a jumper on the ADM.

The software identification (checksum value) can be displayed on each indicator by using the specific key sequence.



The instrument may have the following interfaces:

  • Ethernet
  • RS485 (connecting digital load cells)
  • RS232
  • USB
  • Field bus
  • WLAN
  • MF II / PS2

Peripheral devices

The instrument may be connected to any peripheral device that has been issued with Parts Certificate by a Notified Body responsible for Annex B (MI-006) under Directive 2014/32/EU in any Member State and bears the CE marking of conformity to the relevant directives; or

A peripheral device without a test certificate may be connected under the following conditions:

  • it bears the CE marking for conformity to the EMC Directive;
  • it is not capable of transmitting any data or instruction into the weighing instrument, other than to release a printout, checking for correct data transmission or validation;
  • it prints weighing results and other data as received from the weighing instrument without any modification or further processing; and
  • it complies with the applicable requirements of Paragraph 8.1 of Annex I.


The markings and inscriptions shall fulfil the requirements of Article 8, Article 21 and Point 9 of Annex I of Directive 2014/32/EU.


Figure 1           Crane configuration
Figure 2           Truck configuration showing infrared barriers and cameras
Figure 3           Systec ITx000xx Indicators

Figure 4           External display and traffic light

Crane configuration

Figure 1          Crane configuration

Truck configuration showing infrared barriers and cameras

Figure 2          Truck configuration showing infrared barriers and cameras

SysTec indicators

Figure 3          Systec ITx000xx Indicators       

External display and traffic light

External display and traffic light

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