Ex relevant safety instructions
1.6
Safety information for electrical installation
The electrical connections may only be performed by authorized specialist personnel according
to the electrical plans.
Comply with electrical connection information in the instruction. Otherwise, the electrical
protection class can be affected.
The secure separation of contact-dangerous electrical circuits is only ensured when the
connected devices fulfil the requirements of the DIN EN 61140 (VDE 0140 Part 1) (basic
requirements for secure separation).
For secure separation, run the supply lines separated from contact-dangerous electrical circuits
or additionally insulate them.
1.7
Operating safety information
Before switching on the unit make sure that your installation complies with the environmental
conditions listed in the chapter "Technical data" or in the data sheet.
If there is a chance that safe operation is no longer possible, take the unit out of operation and
secure against unintended startup.
When mounting the unit in areas that may be accessed by unauthorized persons, take the
required protective measures.
2 Ex relevant safety instructions
Depending on the type of explosion protection, an Ex label is attached to the left of the
positioner beside the main name plate. It shows the explosion protection and the unit's relevant
Ex certificate.
Requirements / preconditions for safe operation of the positioner:
Important
Observe with the unit’s relevant technical data and the special conditions in accordance with
the relevant certificate.
• Manipulation of the device by users is not permitted. Modifications to the unit may only be
performed by the manufacturer or an explosion protection specialist.
• The splash guard cap must be screwed in place to achieve IP 65 / NEMA 4x protection
class. Operating the unit without splash guard cap is prohibited.
• The unit must be supplied with instrument air that is free of oil, water and dust. Do not use
flammable gas nor oxygen or oxygen-enriched gas.
Important – Use in areas with combustible dust
• To prevent loss of its ignition-proof classification, the housing may not be opened.
• Use only cable glands that conform to protection type
≥
IP 65.
• Avoid hazardous sliding brush discharges.
CI/TZIDC/110/120-EN D400 EN - 7
