Ex relevant specifications
42/18-85-EN TZIDC-200,
TZIDC-210, TZIDC-220
49
Special conditions for ATEX, flameproof enclosures
DANGER – Risk of explosion
Hot parts inside the housing may pose a risk of explosion.
Never open the device immediately after switch-off. Always wait at least four minutes before
opening the unit.
• Prior to final installation, the owner must decide how the device is to be used, either
A) as a device featuring the "Ex i" type of ignition protection, or
B) as a device with the "Ex d" type of ignition protection,
and he/she must mark the selected type of use on the name plate in a permanent manner.
Specific ambient conditions such as chemical corrosion should be taken into account when
affixing the permanent mark. Only the manufacturer may change the selected type of use
following a review.
• Variants that also meet the requirements for the "intrinsically safe" type of ignition protection
may not be used as "intrinsically safe", if they have been previously used as a flameproof
type of ignition protection.
• Manipulation of the device by the user is not permitted. Modifications to the device may only
be performed by the manufacturer or an explosion protection specialist.
• The splash guard cap must be screwed in place to achieve the IP 65 / NEMA 4x protection
class. Operating the devices without the splash guard cap is prohibited.
• The device may only be supplied with instrument air that is free of oil, water, and dust. Do
not use flammable gases, oxygen, or oxygen-enriched gas.
• Secure the cable and line entries against twisting and becoming loose by applying adhesive
of medium strength.
• In the event of high torsional forces, the bearing sleeves on the shaft for the position pickoff
must be replaced due to wear (significant system deviation).
• If the positioner is used at an ambient temperature above 60 °C (140 °F) or below -20 °C (-4
°F), use cable entries and lines approved for a service temperature corresponding to the
maximum ambient temperature increased by 10 K or corresponding to the minimum ambient
temperature, respectively.
NOTICE – Potential damage to parts
If the sealing surface is damaged, the "Ex d" explosion protection is no longer guaranteed.
Handle the housing cover carefully. Place the housing cover only on a smooth and clean
surface.
DANGER – Risk of explosion (only applies to TZIDC-200)
It is prohibited to use the local communication interface (LKS) in an explosion risk area.
Never use the local communication interface (LKS) on the main board with a positioner that is
being used in an explosion risk area.
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