8
INM F300 rev 6
DRAFT - 09 July 2019
8 .3 Inspection and maintenance
a) Inspection and maintenance should be carried out in accordance with European,
national and local regulations which may refer to the standard EN 60079-17. In
addition specific industries or end users may have specific requirements which
should also be met.
b) Access to the internal circuitry must not be made during operation.
8 .4 Repair
This product cannot be repaired by the user and must be replaced with an equivalent
certified product.
NOTE:
All MTL fieldbus power supplies are designed to protect the fieldbus trunk from
transient disturbances on the DC power feed and will meet the requirements of maintaining
transient disturbances below 140% of the rated voltage.
8 .5 Marking
Each device is marked in compliance with the Directive.
This information applies to products manufactured during or after the year 2011.
Typical certification marking
For F3xx
For F3xx-V2
NOTE
For details of FM and IECEx approvals see Sections 9 & 10.
