Hach-Lange ORBISPHERE 3650 - Manual (Page 8)

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General Information
1.4 Intrinsically safe conformity
Orbisphere series 3650Ex analyzers for gas measurement have been certified as Intrinsically
Safe by:
LCIE (Laboratoire Central des Industries Electriques),
33 av. Division Leclerc, Fontenay aux Roses 92260, France.
Note: LCIE is a notified body number 0081 in accordance with article 9 of Directive 94/9/CE of the
European Parliament and Council of 23 March 1994.
LCIE certifies that the electrical apparatus has been found to comply with the essential Health
and Safety Requirements: EN 60079-0 (2006), EN 60079-11 (2007).
These instruments are certified II 1G Ex ia IIC T4 under EC type Examination Certificate
number LCIE 03 ATEX 6003 X (see 3650Ex certificates on page 13 )
Category Explanation
II 1 G ATEX marking: Surface apparatus with permanent explosive gas presence.
Ex Explosion-proof apparatus built to the universal standards below:
ia
Type of protection: The highest category, based on a safety factor of 1.5 on two faults.
No combination of two faults in the 3650Ex can produce a spark, or heating, causing
ignition of an explosive atmosphere.
IIC Gas group: Corresponds to the most flammable gases, including hydrogen.
T4 Temperature category: Maximum surface temperature of 135º C.