Siemens SITRANS LR260 Operating Instructions Manual page 29

SPECIAL CONDITIONS FOR SAFE USE
The 'X' suffix to the certificate number relates to the following special condition(s) for
safe use:
• Unused cable entries shall be fitted with blanking elements that can only be
removed with the aid of a tool.
• Any glands, conduit entry devices or blanking elements fitted to the equipment
shall be suitable for use in the presence of combustible dusts and certified as
such by a notified body; the installation of these devices shall not compromise
the IP6X rating of the equipment enclosure.
• For applications that use the purge facility, the user shall provide a means to
ensure that combustible dust from the hazardous area cannot enter the purge
supply in such a way as to compromise the area classification.
7ML19985KE02 SITRANS LR260 (HART) – INSTRUCTION MANUAL Page 23