Serial Number
The unique production code found on the device label that identifies that single unit. Matching the warranty start, the production revision and the service history is done with this number; the model name shows the product family, while the serial number shows the physical device in your hands.
Model information alone is not enough: the same model may carry a different hardware or software revision in different production batches. On the service side, the serial number determines which revision's schematic and parameter set will be used.
- Photograph the label during installation; once it is inside the panel it may become unreadable later.
- Keep the number together with the order number and the invoice.
- Provide the number in your first message when opening a support request; it shortens diagnosis time.
In wireless remote control sets, the transmitter and receiver units have separate serial numbers; both must be reported together in a pairing or spare unit request. In a multi-unit facility, recording each device's number on the installation plan instantly shows which unit is fitted to which machine in a fault record opened years later. If the label is erased or unreadable, matching can be done via the purchase documents.
Context in which this term is used: contact page