ABB TZIDC, Operating Instructions Manual

Page: 13 / 88

Ex relevant safety instructions
42/18-84-EN TZIDC, TZIDC-110, TZIDC-120 13
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 (NOTE)
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 (NOTE) – 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.