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4.
Interfaces and peripheral equipment
4.1
Interfaces
The interfaces are characterised "Protective interfaces" according to paragraph 8.4 in the Directive.
4.1.1
Load cell input
A 5-terminal connector or 7-terminal connector for the load cell is positioned on the back of the enclo-
sure.
4.1.2
Other interfaces
The indicator may be equipped with one or more of the following protective interfaces located on the
main board or on separate interface boards.
RS-232C
•
The interfaces do not have to be secured.
4.2
Peripheral equipment
Connection between the indicator and peripheral equipment is allowed by screened cable.
The instrument may be connected to any simple peripheral device with a CE mark of conformity.
5.
Approval conditions
5.1
Measurement functions other than non-automatic functions
Measurement functions that will enable the use of the instrument as an automatic weighing instrument
are not covered by this type approval.
5.2
Totalised weight is not a legal value.
When using the totalisation function creating a sum of several weighing results, this sum is only in-
formative, as it is not a legal value.
5.3
Compatibility of modules
In case of composition of modules, WELMEC 2 (Issue 5) 2009, paragraph 11 shall be satisfied.
6.
Special conditions for verification
6.1
Composition of modules
The environmental conditions should be taken into consideration by the composition of modules for a
complete weighing instrument, for example instruments with load receptors placed outdoors and hav-
ing no special protection against the weather.
The composition of modules shall agree with section 5.3.
An example of a declaration of conformity document is shown in section 10.
Issued by DELTA
Annex page 6 of 12
EC type-approval certificate no. DK 0199.312
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