SPRIANO SST70 - Definitions and Symbols

OPERATING MANUAL
MN-SST70
ED-19-01
SPRIANO® TECHNOLOGIES - www.spriano.it – spriano@terranova-instruments.com
a TERRANOVA® Srl brand - www.terranova-instruments.com - VAT IT07848810151
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1.3  DEFINITIONS AND SYMBOLS
In this manual are used the following symbols and labels
WARNING!
Warning label, used to warn about hazardous materials, locations, or objects,
including electric currents, poisons, and other things.
PROHIBITION!
Prohibition label, used to indicate something is not permitted.
MANDATORY!
Mandatory label, used to set obligation tasks to be performed by the user.
INFORMAZIONE!
Etichetta informazione, utilizzata per informare l’utilizzatore o per avvisare circa
pericoli per lo strumento.
Equipment for use in potentially explosive atmospheres
II 1/2G
Equipment Group II Category 1/2G, suitable for potentially explosive area (gases,
vapours or mists); to be installed in a separation wall between Zone 0 (process
side) and Zone 1 (external side)
Ex d
Device with Explosion Proof Enclosure
IIC
Group IIC apparatus, fit for substances of group IIC, IIB and IIA (only when used in
the ambient temperature range –40°C to 60°C)
IIB
Group IIB apparatus, fit for substances of group IIB and IIA (when used in the
ambient temperature range –40°C to 80°C)
Temperature Class of the transmitter (maximum surface temperature)
T6
T5
 only when used in the ambient temperature range –40°C to 60°C
 only when used in the ambient temperature range –40°C to 80°C
Ga/Gb
Equipment to be installed in the boundary wall between an area requiring EPL Ga
and the less hazardous area