Instruction Manual
1. Marking
Keyboard with an optional control element for mouse functions
EXTA3-**-*
ATEX certificate: PF 11 CERT 1918 X
ATEX marking:
1
II 3G Ex ic IIC T4 Gc
1
II 3D Ex ic IIIB T135°C Dc
UL: E190294, ANSI/ISA 12.12.01
Class I and II, Division 2
Class III, Division 1 and 2
CAN/CSA C22.2: Class 1 Division 2
USL, CNL:
Class I, Division 2, Groups A-D
Class II, Division 2, Groups F, G
Class III
Fuchs Group
Lilienthalstraße 200, 68307 Mannheim, Germany
Internet: www.pepperl-fuchs.com
2. Validity
Specific processes and instructions in this instruction manual require
special provisions to guarantee the safety of the operating personnel.
3. Target Group, Personnel
Responsibility for planning, assembly, commissioning, operation,
maintenance, and dismounting lies with the plant operator.
The personnel must be appropriately trained and qualified in order to carry
out mounting, installation, commissioning, operation, maintenance, and
dismounting of the device. The trained and qualified personnel must have
read and understood the instruction manual.
4. Reference to Further Documentation
Observe laws, standards, and directives applicable to the intended use
and the operating location. Observe Directive 1999/92/EC in relation to
hazardous areas.
Observe laws, standards, and directives applicable to the intended use
and the operating location.
The corresponding datasheets, manuals, declarations of conformity, EU-
type examination certificates, certificates, and control drawings if
applicable (see datasheet) are an integral part of this document. You can
find this information under www.pepperl-fuchs.com.
Refer to the relevant EU-type examination certificate to see the
relationship between the connected circuit type, the maximum permitted
ambient temperature, the temperature class, and the effective inner
reactances.
Due to constant revisions, documentation is subject to permanent change.
Please refer only to the most up-to-date version, which can be found under
www.pepperl-fuchs.com.
5. Intended Use
The device is only approved for appropriate and intended use. Ignoring
these instructions will void any warranty and absolve the manufacturer
from any liability.
The device is a PC keyboard with an optional control element for mouse
functions (touchpad, trackball, joystick).
The keyboard has USB interfaces for use in hazardous areas zone 2
and zone 22 according to ATEX Directive 2014/34/EU and IECEx.
The USB interfaces of the keyboard and the control element for mouse
functions are separated, intrinsically safe circuits. Both intrinsically safe
circuits are led out either in one or two separate connection cables. The
connection cable corresponds to type "B" according IEC 60079-14
section 12.2.2.8.
Use the device only within the specified ambient and operating conditions.
Take the intended use of the connected devices from the corresponding
documentation.
The device is an electrical apparatus for hazardous areas.
Devices for which special conditions apply have the X marking at the end
of the certificate number.
6. Improper Use
Protection of the personnel and the plant is not ensured if the device is not
used according to its intended use.
7. Mounting and Installation
Prior to mounting, installation, and commissioning of the device you
should make yourself familiar with the device and carefully read the
instruction manual.
Observe the installation instructions according to IEC/EN 60079-14.
Observe the installation instructions according to IEC/EN 60079-25.
Only use accessories specified by the manufacturer.
Do not mount the device at locations where an aggressive atmosphere
may be present.
Mount the device in such a way that it is protected from direct sunlight,
unless it is equipped with UV protection.
When connecting intrinsically safe devices with intrinsically safe circuits of
associated apparatus, observe the maximum peak values with regard to
explosion protection (verification of intrinsic safety). Observe the
standards IEC/EN 60079-14 or IEC/EN 60079-25.
Ensure that all fasteners are present.
Observe the tightening torque of the screws.
For intrinsically safe circuits, the dielectric strength of the insulation against
other intrinsically safe circuits and against the shield must be
at least 500 V according to IEC/EN 60079-14.
Safety-relevant markings are found on the nameplate supplied. Ensure
that the nameplate is present and legible. Take the ambient conditions into
account.
Ensure that external ground connections exist, are in good condition, and
are not damaged or corroded.
Mount the device in a weatherproof location.
Protect the device against long-term or excessive mechanical vibrations.
Connect all bare non-energized metal parts to the protective conductor.
The device is not suitable for separating hazardous areas.
The device may be installed in gas group IIC.
The device must be disconnected from the power supply prior to
installation and maintenance. The power supply may be activated only
after all the circuits required for operation have been fully assembled and
connected.
If circuits with type of protection Ex i are operated with non-intrinsically
safe circuits, they must no longer be used as circuits with type of
protection Ex i.
Observe the respective peak values of the field device and the associated
apparatus with regard to explosion protection when connecting intrinsically
safe field devices with intrinsically safe circuits of associated apparatus
(verification of intrinsic safety). Also observe IEC/EN 60079-14 and
IEC/EN 60079-25.
Observe the maximum values of the device, when connecting the device
to intrinsically safe apparatus.
Keep the separation distances between all non-intrinsically safe circuits
and intrinsically safe circuits according to IEC/EN 60079-14.
Observe the compliance of the separation distances between two
adjacent intrinsically safe circuits according to IEC/EN 60079-14.
Circuits of intrinsically safe apparatus can be led into hazardous areas,
whereby special attention must be paid to maintaining separation
distances to all non-intrinsically safe circuits according to the requirements
in IEC/EN 60079-14.
Observe the grounding requirements for type of protection Ex i according
to IEC/EN 60079
‑
14.
Requirements for Cable Glands
Use only one connection line per opening.
Adjust the sealing element of the cable gland to the diameter of the cables
and connection lines used.
Ensure that all cable glands are in good condition and are securely
tightened.
Only use cable glands with a temperature range appropriate to the
application.
Requirements for Cables and Connection Lines
Install the cables and the cable glands in accordance with
IEC/EN 61241-0.
Observe the maximum permissible length of cables and connection lines.
Observe the permissible core cross section of the conductor.
The dielectric strength of the insulation must be at least 500 V according to
IEC/EN 60079-14.
The insulation stripping length must be considered.
When installing the conductors the insulation must reach up to the
terminal.
When using stranded conductors, crimp wire end ferrules on the
conductor ends.
Observe the minimum bending radius of the conductors.
Install the cables and connection lines in such a way that they are
protected from ultraviolet radiation.
Install cables and cable glands in a way that they are not exposed to
mechanical hazards.
Requirements in Relation to Electrostatics
Information on electrostatic hazards can be found in the technical
specification IEC/TS 60079-32-1.
Individually accessible non-grounded metal parts can become
electrostatically charged. The determined capacitance exceeds the
DOCT-6543 / 2019-09
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