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Explosion protection
5.2 FM
SITRANS SL
78
Operating Instructions, 12/2010, A5E01132948-04
5.2
FM
5.2.1
Introduction
The basic principles of explosion protection are the same all over the world. However,
technologies have developed in North America in the field of explosion protection for electric
equipment and installations which are considerably different from those of the IEC
(International Electrotechnical Commission). The differences from IEC technologies are
among others the classification of hazardous locations, the construction of devices and the
installation of electric systems.
WARNING
The FM certificate is a system certificate and is only valid if SITRANS SL is installed
according to the instructions given in the certificate.
5.2.2
Safety information
Electric safety
The SITRANS SL FM version is delivered with an approval for use in hazardous
environments in which explosive gases are in use.
WARNING
Open cable inlet or incorrect cable gland
Danger of explosion
Close the cable inlets for the electric connections. Only use cable glands or plugs which are
approved for the type of protection "Flameproof enclosure Ex d".
When using a conduit system, you must provide an ignition lock-out at a maximum distance
of 46 cm (18") from the device inlet. Screw in the conduit with at least four turns of the
thread.
Observe the specifications and laws with regard to the installation location of the device.
WARNING
Fix the safety mechanism for the lid.
Содержание SITRANS SL
Страница 106: ...Commissioning 6 4 Modbus configuration for SITRANS SL SITRANS SL 108 Operating Instructions 12 2010 A5E01132948 04 ...
Страница 206: ...List of abbreviations SITRANS SL 208 Operating Instructions 12 2010 A5E01132948 04 ...
Страница 212: ...Glossary SITRANS SL 214 Operating Instructions 12 2010 A5E01132948 04 ...