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Unique device number
Depending on the device, the following numbers are used for identification:
• EL/ELM terminals up to year of manufacture 2020: the ID number which is lasered on the side.
Fig. 6: ID number
• From year of manufacture 2021 onwards, the BTN number (Beckhoff Traceability Number) will
gradually replace the ID number, this is also lasered on the side.
Beckhoff produces a wide range of analog input/output devices as IP20 terminal or IP67 box. A selection of
these is also available with factory/ISO/DAkkS calibration certificates. For specific details and availability, see
the technical data of the devices or contact Beckhoff Sales.
Linguistic note
In American English, "calibration" or "alignment" is understood to mean compensation/adjustment,
thus a modifying effect on the device. "Verification", on the other hand, refers to observational
determination and documentation of the residual error, referred in German language use as
"Kalibrierung".
EL3692
Version: 3.1
Product description
21
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