Siemens SITRANS LR250 Compact Operating Instructions page 35

● The equipment shall be bonded to the system earth in accordance with the relevant code
of practice.
● When the SITRANS LR250 mA/HART is used in the presence of combustible dust, the
gland that is fitted to the equipment shall also be suitable for use in the presence of
combustible dust, as certified by an ATEX notified body, in addition, the installation of the
gland shall not compromise the IP6X rating of the equipment enclosure.
LR250 (mA/HART)
Compact Operating Instructions, 06/2018, A5E33469191-AB
5.4 Instructions specific to hazardous area installations
Connecting
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