DAD 143.x User Manual Profinet Rev.1.1.1 March 2023 Page 61 of 95
10 Legal For Trade Applications
The weighing indicators of the DAD 14x.y series have type approvals for Class III with 10000 parts according
to OIML R76 for NSW (non-automatic weighing instruments) according to the Directive 2014/31/EU. The
minimum verification interval value is 0.2μV per increment.
With the EU Type Approval, a device of the DAD14x.y series can be used as a legal for trade weighing indicator
for single-range and multi-interval scales. For further information please refer to the type approval (pending).
For the weighing indicators series DAD 14x.y an evaluation certificate for class III with 10000 parts for NSW
(non-automatic weighing instruments) exists additionally, in accordance with OIML R76:2006, EN45501:2015,
WELMEC Guide 2.1:2001 and WELMEC Guide 8.8:2008. The minimum verification interval value is 0.2μV per
increment.
With the evaluation certificate a device of the series DAD14x.y can be used for multi-range and multi-interval
scales. For further information please refer to the evaluation certificate.
For legal for trade applications, the choosen certificate used must be marked on the housing, see section 5.1
on page 10.
10.1 Access to metrological data and weighing range adjustment
The access to the configuration and the adjustment function is made by means of a traceable code
(TAC = Traceable Access Code), which is automatically increased as a non-volatile number by 1, each time the
adjustment function is ended. The proof can be viewed by means of the command CE, which is answered with
the status CExxxxx. The code is limited up to max. 65535.
10.2 Protection of the metrological data and the scale calibration
Access to the configuration and adjustment function is protected by a code (TAC).
Setup or adjustments can only be made with the switch open (terminals 26). In case of changes, the value of
the TAC counter is increased by 1 accordingly.
For legal-for-trade use, the two contacts must be jumpered and sealed. A damaged seal indicates an
unauthorized modification of the adjustment.
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