GE SVI II AP Quick Start Manual page 70

"X" Marking on label - M8 X 1.25-6g cover screws must be supplied by
Masoneilan. No substitution allowed. Minimum yield stress to be 296 N/mm^2
(43,000 psi)
4.5 Carbon Disulphide Exclusion
Carbon Disulphide is excluded. (IEC 60079-1, Clause 15.4.3.2.2., carbon disulphide
is excluded for enclosures with a volume greater than 100cm3)
4.6 Electrostatic Discharge
"X" Marking on label - Potential Electrostatic Charge Hazard – For safe operation
use only wet cloth when cleaning or wiping device, and only when local conditions
around the device are free of potentially explosive atmospheres. Do not use dry
cloth. Do not use solvent.
4.7 Dust
"X" Marking on label - Instruments installed in dusty hazardous areas, Zones 20,
21 and 22; must be cleaned regularly to prevent the buildup of dust layers on any
surface. To avoid the risk from electrostatic discharge, you must follow the guidance
as detailed in EN TR50404. For safe operation, use only wet cloth when cleaning or
wiping the device. Cleaning must only be done when local conditions around the
device are free of potentially explosive atmospheres. Do not use dry cloth or any
solvents.
5 INTRINSICALLY SAFE REQUIREMENTS
5.1 Div 2
WARNING: EXPLOSION HAZARD – DO NOT DISCONNECT EQUIPMENT
UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOW TO BE
NON-HAZARDOUS.
5.2 Category II 1 (Zone 0)
For operation in hazardous area category II 1, over-voltage protection of the
electrical connections need to be installed according to EN 60079-14
For operation in hazardous area category II 1 the ambient
temperature needs to be lowered according to the requirements of EN 1127-1
(reduction factor of 80%). The max. allowed ambient temperature for category 1
inclusive the requirement of EN1127-1 is:
5.3 Category II 1 (Zone 0)
ES-699 Rev AA
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70 | =GE Oil & Gas
T6 : Ta = -40°C to +43°C
T5 : Ta = -40°C to +55°C
T4 : Ta = -40°C to +83°C
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