40 Advance Optima Ex Analyzer Modules Operator’s Manual 42/24-12-2 EN
Electrical Equipment in Explosion Hazard Zones:
Legal Principles
ElexV Set-up, installation and operation of the explosion-protection versions of the
Advance Optima Analyzer System in the Federal Republic of Germany is covered
by the 13 December 1996 "Regulations on Electrical Equipment in Explosion
Hazard Zones" (ElexV).
Classification of
Explosion Hazard
Zones
Areas in which combustible gases, vapors or fogs pose a risk of explosion are
classified as zones. Zones are distinguished by their respective probability of
containing explosive atmospheres:
Zone 0 Covers areas in which explosive atmospheres occur continuously or on a
long-term basis.
Zone 1 Covers areas in which explosive atmospheres may occasionally be
present.
Zone 2 Covers areas in which explosive atmospheres are infrequently present or
occur only for short periods of time.
Operation of Electrical
Equipment in Zone 1
Only electrical equipment with an EC type certification may be used in Zone 1
explosion hazard areas.
Operation of Electrical
Equipment in Zone 2
Electrical equipment used in Zone 2 explosion hazard areas must have
• An EC type certification or
• A manufacturer’s certificate of suitability for use in Zone 2
Manufacturer’s
Certification
By affixing a label (see "Operating Data", Page 30) the manufacturer confirms that
unit testing was successfully completed and that the product is in accordance with
the documentation submitted to the testing office.
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