Notes For Operation; Use & Operation - ABB TZIDC Manual

24 TZIDC DIGITAL POSITIONER | DS/TZIDC-EN REV. G
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... Use in potentially explosive atmospheres
Commissioning, Installation
The ABB positioner has to be mounted in a major system.
Depending on the degrees of IP-protection, an interval for
cleaning the equipment (dust settlement) has to be defined.
Strict care has to be taken that only devices which comply
with the types of protection relevant to the applicable zones
and categories is installed.
When installing the device, the locally applicable installation
regulations, such as EN 60079-14, must be observed.
Other important facts to be observed:
• The electric circuits of the positioner must be put into
operation in all zones by persons qualified in
accordance with TRBS 1203. The details on the type
label are mandatory for doing this.
• The device has been designed in accordance with IP 65
(optionally IP 66) and must be protected accordingly
against adverse ambient conditions.
• In accordance with the selected Ex approval, the
information in the EU type examination certificate or
the Ex certificates must be observed, including the
special conditions defined in them.
• The device may only be used in accordance with its
intended use.
• The device may only be connected when de-energized.
• The potential equalization of the system must be
established in accordance with installation regulations
applicable in the respective country (VDE 0100,
Part 540, IEC 364-5-54).
• Circulating currents must not be guided through the
housing!
• Make sure that the housing is properly installed and
that its IP rating has not been compromised.
• In potentially explosive atmospheres, assembly may
be conducted only in compliance with locally
applicable installation regulations. The following
conditions have to be observed (incomplete):
- Assembly and maintenance may only be conducted
if there is no explosion hazard in the area and you
have a hot work permit.
- The TZIDC may be operated in a fully mounted and
intact housing only.

Notes for operation

• The positioner must be integrated in the local potential
equalization system.
• Only either intrinsically safe or non intrinsically safe
circuits may be connected. A combination is not permit -
ted.
• If the positioner is operated with non intrinsically safe
circuits, later use for the intrinsic safety type of
protection is not permitted.
Use, Operation
The TZIDC is approved for proper and intended use only. In
case of non-compliance, the warranty and manufacturer's
liability do no longer apply!
• Only those auxiliary components which fulfill all the
requirements of European and national standards may be
used in potentially explosive atmospheres.
• The ambient conditions specified in the operating
instruction must be strictly followed.
• The TZIDC is approved for proper and intended use in
standard industrial atmospheres only. Where aggressive
substances are present in the air, the manufacturer has to
be consulted.