Page 35
FW-F018-P-M_v0404_01_EN.docx
5.2
ELECTRICAL INSTALLATION IN HAZARDOUS AREA
5.2.1
GENERAL INFORMATION AND INSTRUCTIONS
Cautions
•
Mounting, electrical installation, start-up and maintenance of this device may only be
carried out by trained persons authorized by the operator of the facility. Persons must
read and understand this manual before carrying out its instructions.
•
This device may only be operated by persons who are authorized and trained by the
operator of the facility. All instructions in this manual are to be observed.
•
Make sure the measuring system is correctly wired up according to the wiring diagrams.
Protection against accidental contact is no longer assured when the enclosure cover is
removed or the panel cabinet is opened (danger from electrical shock). The enclosure
may only be opened by trained persons authorized by the operator of the facility.
•
To maintain the degree of protection of at least IP65 in accordance with IEC 60529,
suitable cable entries and blanking elements must be used and correctly installed.
•
Take careful notice of the "Safety rules, instructions and precautionary measures" in the
front of this manual.
•
Chapter 4 shows general information regarding the electrical installation of your indicator.
This chapter gives additional specific information regarding Intrinsically safe installation
and overrules the information given in chapter 4.
•
When installing this device in hazardous areas, the wiring and installation must comply
with the appropriate installation standards for your industry.
Safety instructions
•
For the combined connection of the different supply, input and output circuits, the
instructions in this manual must be observed.
•
Precautions shall be taken to avoid the risk of electrostatic discharge (ESD) and
propagating brush discharges.
•
For reasons of ESD and safety, always ground the metal enclosure properly as indicated
in section “4.5. Electrical installation” of this manual.
•
Do not blend metal front covers with non-metallic rear covers, vice versa and / or cable
glands. A metal cover on a non-metallic rear cover could lead to ESD. A metal cable
gland in a non-metallic enclosure could invalidate isolation.
•
For enclosures and windows with a high surface resistance, potential charging hazard
exists. Do not rub these surfaces of the indicator. Clean window and enclosure only with a
lint-free cleaning cloth made damp with a mild soap solution.
Please note
•
Certificates and related documents are available on our website or from your distributor.
•
Carefully study the configuration examples with wiring diagrams per classification in the
following paragraphs.
5.2.2
INSTALLATIONS BASED ON FM OR CSA CERTIFICATE
Installation instructions
•
For installation in the
US
: this Intrinsically Safe device must be installed in accordance
with the National Electrical Code, NFPA 70, Article 504 and ANSI/ISA-RP 12.6 and
product certificate FM16US0177X or CSA.08.2059461.
•
For installation in
Canada
: this Intrinsically Safe device must be installed in accordance
with the Canadian Electrical Code, Part 1 Appendix F and product certificate
CSA.08.2059461.
Covered markings
•
Intrinsically Safe for Class I/II/III, Division 1, Groups A,B,C,D,E,F,G, Temperature class T4
•
Class I, Zone 0, AEX ia IIC T4
Safety instructions
•
Please consult the control drawing for this F0-Series model on the following page.
•
Read paragraph 6.3 for battery replacement instructions.
Specific conditions of use
•
When the enclosure of the indicator is made of aluminum alloy, when used in a potentially
explosive atmosphere requiring apparatus of equipment protection level Ga, the indicator
shall be installed so, that even in the event of rare incidents, an ignition source due to
impact or friction sparks between the enclosure and iron/steel is excluded.
