Safety 13
03/2016 CFPP Process Analyzer CFPP-4.2
The device is essentially made up of main subassemblies, which are installed in the
following boxes:
Housing Types of protection
Control box p
Measuring cell housing p
Power supply box e
Signal junction box e
Measuring unit enclosure not required
The explosion-proof boxes and their installations have been ATEX-certified as individual
subassemblies. All components relevant for explosion protection outside the control box
and measuring cell housing are protected against explosions by their own ignition
protection class. Electrical equipment inside the measuring unit enclosure and the
thermostat for the optional chiller are operated out of the control box in intrinsically safe
electrical circuits.
Note: The list with explosion-proof components or subassemblies used and the
corresponding certificates can be found in your customer folder.
The risk assessment shows that no additional ignition hazards arise from the combination
of the explosion protect components and subassemblies. For this reason the device does
not require an assessment as an electrical device according to ATEX. The conformity
assessment process has been checked by a notified body and has been approved via a
statement of conformity.
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