vi Installation and Operations Manual
ATEX Exemption
The 6700 Liquid Level Indicator (LLI) is considered a simple apparatus. It moves very slowly, and
has a low capacity to store energy. It is incapable of forming hot surfaces or other ignition
sources, even in cases of rare malfunction. Simple apparatus are not to be classified as ATEX
equipment or to be marked according to ATEX Directive 2014/34/EU.
For use in gas groups IIA, IIB, and IIC.
Installation Location Wetted Parts
(float, cable, bottom anchor,
top anchors, sheave elbows)
Non-Wetted Parts
(gaugeboard, level indicator)
Hazardous locations – Zone 0 Yes No
Hazardous locations – Zone 1 Yes Yes
Hazardous locations – Zone 2 Yes Yes
Normal (nonhazardous) locations Yes Yes
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