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Instruction for use | Supercal 5
The test bench communicates the NOWA function via the S1 interface based on defined
specifi-cations.
Via the interface(s) S2, NOWA controls the calculators according to the function specified by
S1. NOWA controls an optional electronic device for the simulation of temperature sensors
via the S3 interface.
The NOWA system can be used with manual or semi-automatic test benches and automatic
versions.
Due to its flexible design of the S2 interface, up to 15 arithmetic units can be subjected to
custody transfer testing at the same time. Multiplexing makes it possible to integrate more
than 15 DUTs and to guarantee additional functional extensions (e.g. higher data transfer
rates, parallel transmission, etc.).
Further advantages of the NOWA concept:
High security against errors in the handling of test sequences
Cost reduction regarding production and quality assurance for the
manufacturers of calculators.
Improving consumer protection.
12. Notes on Project Planning
12.1 Safety and Security
The Supercal 5 calculator is produced in accordance with the state of the art and complies
with EN1434 and is reliable in operation. If the calculator is operated outside the specifica
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tions defined here or is not handled in accordance with the regulations, all Sontex service
and warranty services will be invalidated.
12.2 Local Regulations
The following regulations must be observed:
Local regulations for electrical installations
Local regulations for the use of heat meters
Installation information for the installation of heat meters
and temperature sensors according to EN1434-2 and EN1434-6
12.3 Power Supply
In the case of mains-operated calculators, an uninterruptible
power supply must be guaranteed.
Local regulations for electrical installations should be ensured.
Over-, under- and surge voltages are not permitted.
12.4 Lightning protection
Protective measures against lightning protection must be taken within the power supply
networks or bus systems.
NOTICE
Destruction of arithmetic unit!
In all bus systems, galvanic isolation from the flow sensors must be ensured. Other
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wise the calculator may be destroyed!
12.5 Bus Facilities
