TEIP11, TEIP11-PS I/P SIGNAL CONVERTER | OI/TEIP11/TEIP11-PS-EN REV. M 7
Installation instructions
The installation, commissioning, maintenance and repair of
devices in potentially explosive atmospheres must only be
carried out by appropriately trained personnel. Works may be
carried out only by persons, whose training has included
instructions on different types of protection and installation
techniques, concerned rules and regulations as well as general
principles of zoning. The person must possess the appropriate
competences for the type of work to be conducted.
When operating with combustible dusts, comply with
EN 60079-31.
The safety instructions for electrical apparatus in potentially
explosive areas must be in accordance with Directive
2014/34/EU (ATEX) and IEC 60079-14 (Installation of electrical
equipment in potentially explosive areas).
Comply with the applicable regulations for the protection of
employees to ensure safe operation.
Information about opening and closing the housing
DANGER
Risk of explosion if the device is operated with the housing
or terminal box open!
Before opening the housing or the terminal box, note the
following points:
• A valid fire permit must be present.
• Make sure that there is no explosion hazard.
• Switch off the power supply and wait for t > 4 minutes
before opening.
NOTICE
Adverse effect on the type of protection
Damage to the cover thread results in loss of the ‘flameproof
(enclosure) (Ex d)’ type of protection.
• Handle the cover with care.
Requirements for operation with the ‘flameproof
(enclosure)’ (Ex d) type of protection
Before installation, you must check if
the I/P signal converter fulfills the measurement and safety
requirements of the measuring point.
• When performing wiring, the parameters in the
specification and the information in the explosion
protection certificate must be complied with.
• The device may only be operated using instrument air
that is free from oil, water and dust. Flammable gases,
oxygen or oxygen-enriched gases must not be used.
Cable entries
When operating with the ‘flameproof (enclosure) (Ex d)’ type of
protection, use only cable glands with the corresponding full ‘Ex
d’ approval.
• Secure all cable entries against twisting and loosening by
using a medium-strength securing adhesive.
• When the I / P signal converter is used at ambient
temperatures above 60 °C (140 °F) or below –20 °C (–4 °F),
make sure to use cable entries and cables suitable for an
operating temperature of up to the maximum ambient
temperature plus 10 K, or for an operating temperature
down to the minimum ambient temperature.
Operating instructions
Changing the type of protection
The devices can be operated as delivered with either the
"intrinsically safe (Ex ia)" or "flameproof (enclosure) (Ex d)" types
of protection.
A device that has been operated with the "flameproof
(enclosure) (Ex d)" type of protection must no longer be
operated with the "intrinsically safe (Ex ia)" type of protection,
as the electronics may have been damaged.
For this reason the devices must be permanently marked during
commissioning (e.g. cross out or mask over "Ex ia").
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