
1 Safety Instructions
10 E22IB001EN-I
1.2 Special Safety Instructions
Additional safety instructions are in the documents
supplied depending on the ordered version. The ad-
ditional documents are an integral part of this in-
struction manual. Always comply strictly with the
instructions in the additional documents.
1.2.1 Operation in Hazardous Areas
This manual also provides the safety instructions,
specifications and certifications of instruments de-
signed for use in hazardous areas according to the
Directive 94/9/EC (ATEX), IECEx, FM and CSA.
These instruments are marked with an Ex-sign. In
areas with risk of explosion, only operate instru-
ments marked with an Ex-sign.
By attaching the Ex-sign, Anton Paar GmbH con-
firms that the instruments meet the requirements of
the examination certificate according to the guide-
lines therein (Appendix D).
It is your responsibility to ensure that the set-up, in-
stallation, commissioning, operation, maintenance
and service of the measuring instrument is in full
compliance with the
• Corporate, local and national regulations and
electrical codes
• Data on the type plate
• Signs and Ex signs on the instrument
• Certificates (Appendix D)
Instructions given in the instruction manual and sup-
plementary documentation.
Set-up, installation, commissioning, operation,
maintenance and service of the instrument must be
carried out by personnel who fulfill the following re-
quirements:
- Be qualified for these tasks
- Be trained in explosion protection
- Be familiar with federal/national regulations
(e. g. IEC/EN 60079-14)
- Be authorized by the plant owner/operator
Before beginning work, the authorized person must
have read and understood the instructions in the in-
struction manual and the supplements to the in-
struction manual and in the certificates (depending
on the application).
Refer to the technical specifications for the relation-
ship between the permitted process and ambient
temperature depending on the temperature class.
Modifications on the instrument, repair works and/or
change of components are not permitted.
In the event of potentially explosive gas/air mix-
tures, only operate the instrument under atmospher-
ic conditions.
- Pressure: 80 to 110 kPa (0.8 to 1.1 bar)
- Air with normal oxygen content, usually 21%
(V/V)
Integrate the instrument into the local potential
equalization.
If the ground connection has been established via
the pipe, it is also possible to integrate the instru-
ment into the potential equalization system via the
pipe.
Only open the electronics housing in a de-energized
state (once a delay of 10 minutes has elapsed after
switching off the power supply) or in environments
which do not have a potentially explosive atmo-
sphere.
Do not remove the USB port sealing plug in poten-
tially explosive atmospheres. The USB connection
must only be used in non-explosive atmospheres.
The plastic transport sealing plugs do not meet this
requirement and must therefore be replaced during
installation.
If a cable gland or conduit entry part is not used, it
must be sealed by using an appropriate flameproof/
explosion proof sealing plug with the plug entered to
a depth of at least five threads.
If connected by a conduit entry approved for this
purpose, mount the associated sealing unit directly
at the housing.
In potentially explosive atmospheres:
• Do not disconnect the electrical connections
(power supply, communication) when energized.
• Do not open the cover of the electronics housing
when energized.
Choose the cables’ diameters to ensure optimal
sealing at the cable gland.
Take mechanical stress into consideration when
choosing the connecting cables. Strain relief is pro-
vided by the correct assembly of the cable gland.
The specification of the connecting cables must
comply with all applicable regulations for the envi-
ronment of operation and with the instructions in the
appropriate instruction manuals.