Distillation Process Analyzer DPA-4.5
Safety
The device is essentially made up of three main subassemblies,
which are installed in the following boxes:
Box
Box
Ignition protection type
Control box
p
Measuring unit box
d
Power supply box
e
Signal junction box
e
The boxes and their installations have been ATEX-certified as
individual subassemblies. All components relevant for explosion
protection outside the box and in junction boxes are protected
against explosions by their own ignition protection class. Electrical
equipment, such as the thermostat for the optional
chiller for
liquids
(or chiller for short), can be operated at the control box in
intrinsically safe electrical circuits.
NOTE
The list with the explosion-protected components
or subassemblies used and the corresponding
certificates can be found in the 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. Within the
scope of the conformity assessment process, the technical
documents were filed with a named office.
2.3.3 Special conditions
WARNING
Carbon disulfide
If carbon disulfide is fed into the device there is no
explosion protection.
For this reason:
– Do not feed carbon disulfide into the measuring
unit box.
– The product may not contain carbon disulfide.
24
December 2013