Operational Instruction
(Translation)
Potentiometer
Type 07-662.-…./….
BARTEC
GmbH Max-Eyth-Straße 16
97980 Bad Mergentheim
Germany
Tel.: +49 7931 597-0
Fax: +49 7931 597-119
www.bartec.de
Reservation Technical data subject to change without notice. Changes, errors and
misprints may not be used as a basis for any claim for damages.
EN 2/4
07-6620-7D0002/
A-0
2/
15-STVT-381059
Safety instructions
The potentiometer may be used only within the
specified temperature class and the tempera-
ture range indicated for it (see type label).
The potentiometer is not suitable for use in
zones 0/20.
The potentiometer may be operated only if it is
clean and not damaged in any way. Dust
deposits exceeding 5 mm (> 0.2 in) must be
removed.
Utilization in areas other than those specified
and the opening or modification of the product
by anyone other than the manufacturer are not
permitted and will exempt BARTEC from liabil-
ity for defects and any further liability.
The generally applicable statutory rules and
other binding directives relating to workplace
safety, accident prevention and environmental
protection must be observed.
When using electrical systems, the relevant
installation and operating conditions must be
observed. The specifications on the type label
must be adhered to.
Observe the applicable laws and directives
when commissioning or restarting operation.
Always follow the safety instructions on the
operating equipment.
Marking
Particularly important points in these instruc-
tions are marked with a symbol:
DANGER indicates a hazardous situation
which, if not avoided, will result in death or
serious injury.
WARNING indicates a hazardous situation
which, if not avoided, could result in death or
serious injury.
CAUTION indicates a hazardous situation
which, if not avoided, could result in minor or
moderate injury.
NOTICE is used to address practices not
related to personal injury.
Note
Important instructions and information on
effective, economical and environmentally
compatible handling.
Standards conformed to
EN 60079-0:2012/IEC 60079-0 : 2011
EN 60079-1:2007/IEC 60079-1 : 2007-04
EN 60079-7:2007/IEC 60079-7 : 2006-07
EN 60079-31:2009/IEC 60079-31 : 2008
ABNT NBR IEC 60079-0
ABNT NBR IEC 60079-1
ABNT NBR IEC 60079-7
ABNT NBR IEC 60079-31
as well as
EN 60204-1:2006/IEC 60204-1:2005, mod.
EN 62208:2011/IEC 62208:2011
EN 60445:2010/IEC 60445:2010
EN 60529:1991 + A1:2000 + A2:2013/
IEC 60529:1989 + A1:1999 + A2:2013
Transport, storage
Damage to the potentiometer through incor-
rect transport or incorrect storage.
Transport and storage is permissible in
original packaging only.
Assembly / disassembly
Risk of serious injury due to incorrect
proceedings.
Only authorized and qualified personnel
may do any of the assembly, disassembly,
installation and commissioning work.
Always disconnect the device from voltage
before assembly/disassembly.
When assembling the device, take care that the
distances between the outside edge of the
flame-proof gap and the fixed obstacles that
are not part of the device are for:
Gas/vapour sub-group
IIC IIB
at least 40 mm
(1.58 in)
at least 30 mm
(1.18 in)
The potentiometer must be fitted into an enclo-
sure that conforms to the requirements of a
type of protection recognized as being in ac-
cordance with IEC/EN 60079-0.
When fitting into an enclosure with “Ex e” type
of protection the clearance and creepage
distances under IEC/EN 60079-7 Section 4.3,
Section 4.4 and Table 1 must be observed.
Installation
Death or serious injury due to improper use.
Extensions or modifications to the potenti-
ometer are only permissible if the manufac-
turer’s approval is obtained first.
The IEC/EN60079-14 must be observed.
Check at the installation:
When connecting cables and conductors
to operating equipment with the “Ex e”
type of protection, use Ex-certified cable
entries that are suitable for the respective
types of cables and conductors. They
must conform to the “Ex e” type of protec-
tion and have a suitable sealing element
uphold the device’s protection class.
Connect metallic cable entries to the
earthing system.
Seal unused cable entry holes with Ex-
certified stopping plugs.
When connecting directly to the flame-
proof enclosure, use Ex-certified entries
that are suitable for the enclosure capaci-
ty, the gas sub-group and the conductor.
Take care when connecting conductors:
Always use suitable crimping tools when
crimping the wire-end ferrules to ensure a
consistent quality of pressing each time.
Take care not to damage the individual
wires.
Tighten all terminal points securely (in-
cluding those not in use).
Commissioning
Before commissioning, check that:
The device has been installed in compli-
ance with regulations.
The device is not damaged.
The connection has been established
properly.
All screws have been tightened securely.
The device functions perfectly.
Operation
Death or serious injury through improper
use.
The potentiometer may be operated only
within the technical limits that apply to it
(see page 1).
