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GENERAL SAFETY INFORMATION
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1.1 Scope of the document
These instructions are applicable only to the explosion-protection version of the TDR level
transmitter. For all other data, use the Quick Start and Handbook. If you do not have these
documents, please contact the nearest office or download them from the manufacturer's
internet site.
INFORMATION!
The information in these supplementary instructions only contains the data applicable to
explosion protection. The technical data for the non-Ex version in the Handbook shall be valid in
its current version, provided that it is not rendered invalid or replaced by these supplementary
instructions.
WARNING!
Installation, commissioning and maintenance may only be carried out by "Personnel trained in
explosion protection".
1.2 Device description
This device is a 2-wire level transmitter that uses TDR (Time Domain Reflectometry) / Guided
Radar technology. It measures the level, distance, volume and mass of liquids, liquid gases,
pastes, powders, slurries and granular products. Measurements are displayed via a DTM (device
type manager) for remote communication or an optional integrated display screen with wizard-
driven setup and online help functions.
The level transmitter is approved for use in potentially explosive atmospheres when equipped
with the appropriate options.
1.3 Standards and approvals
DANGER!
In compliance with European Directive 94/9/EC (ATEX 100a), the ATEX version of the device
described in these Supplementary Instructions agrees with European Standards EN 60079-
0:2009, EN 60079-1:2007, EN 60079-11:2007, EN 60079-26:2007, EN 61241-11:2006 and
EN 60079-31:2009. The Ex ia and Ex d ia / Ex ia tb versions are certified for use in hazardous
areas by the DEKRA Certification B.V. under DEKRA 11ATEX0166 X.
WARNING!
Carefully read the ATEX approval certificate. Obey the boundary conditions.
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www.krohne.com
06/2012 - 4000861601 - AD ATEX OPTIFLEX 2200 R01 en
OPTIFLEX 2200
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