Balluff BTL7-E500 Series - Page 41

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The applicable safety regulations and standard
requirements must be observed during selection, set-up,
and operation, such as:
– Requirements for occupational safety
– Requirements for explosion protection
– Electrical installations erection in explosive
atmospheres (EN 60079-14)
– Inspection and maintenance of this equipment shall be
carried out by suitably trained personnel in accordance
with EN 60079-17.
– Repair of this equipment shall be carried out by suitably
trained personnel in accordance with EN 60079-19.
– Components to be incorporated into or used as
replacement parts of the equipment shall be fitted
exclusively by suitably trained personnel in accordance
with the manufacturer’s documentation.
– Ignition protection “d”, flameproof enclosure
– Special requirements for equipment in device group II,
category 1G
– Special conditions for safe operation (X)
More detailed information on the guidelines,
approvals, and standards is included in the
declaration of conformity.
2.5 Use and inspection
2.5.1 Device category and suitability
The BTL has been classified as electrical equipment in
device group II, i.e. it is suitable for all explosive areas, with
the exception of fire damp-prone mines. It may be used in
gas or dust explosive areas in accordance with the
following descriptions.
Gas explosion protection
Device category II 1/2 G covers devices that have been
designed to ensure the required amount of safety, even in
case of frequent device malfunctions or error states which
are generally to be expected. Devices in this category can
be used in zone0 (measuring range) or 1 (electronics
head). Zone0 refers to an area in which a hazardous
explosive atmosphere made of a mixture of air and
flammable gases, vapors, or mists is constantly or
frequently present. Zone1 is an area in which a hazardous
explosive atmosphere made of a mixture of air and
flammable gases or vapors is occasionally present during
normal operation. The operator is responsible for proper
separation of zones.
Ignition protection “d” ensures that the housing withstands
the pressure of an explosion in the interior thanks to a
flameproof enclosure and does not allow the explosion to
be transferred to the explosive atmosphere outside of the
housing.
Gas group IIC indicates that the BTL can be used in all
gases in compliance with the temperature class.
Temperature classT6/T5 at an ambient temperature of
70°C/80°C indicates that the outer surface temperature of
the BTL is below 85°C, even if the permissible operating
conditions are unfavorable.
As a result, an explosive gas atmosphere with an ignition
temperature of over 85°C cannot be ignited.
Ga/Gb indicates the protection level (EPL) for device
category 1/2G.
Dust explosion protection
The ignition protection type “t” indicates that the electrical
equipment is protected against dust entry by the housing
and features a method of limiting the surface temperature
(T85°C).
Dust group IIIC covers possible use in all areas with an
explosive dust atmosphere, both with conductive and
non-conductive dusts and flammable fibers.
Da indicates the protection level (EPL) for device
category1D.
2
EX safety notes (continued)
BTL7-A/C/E/G5_ _-M_ _ _ _-J-DEXC-TA12
Magnetostrictive Linear Position Sensor – Rod Style
Type of protection “db” and “ta”
Flameproof enclosure