User Manual for PuraLev
®
600MU
www.levitronix.com
PL-4033-00, Rev09, DCO# 20-144
34
5.3 System Operation for ATEX / IECEx Applications
Specific precautions may be considered while using the pump system in potential explosive gas atmospheres
according to ATEX / IECEx category 3G/3D (
Zone 2
and
22
).
The pump head of the pump systems must be filled completely with liquid at all time during operation to avoid
the occurrence of combustible atmospheres inside the pump casing. This applies to all pump heads. Priming
issues shall be prevented by the user and precautions must be considered during installing and maintenance
operations.
The user shall prevent electrostatic charging of the system at cleaning processes by using dry cleaning cloth.
User shall use wet cleaning rags to avoid issues with charging at a cleaning process.
CAUTION
Precautions must be considered to prevent priming issues during
installation operation and maintenance of the pump head / motor.
Pump heads must be filled completely with liquid at all time during
operation to avoid the occurrence of combustible atmospheres inside
the pump casing. This applies to all pump heads. Priming issues shall
be prevented by the user and precautions must be considered during
installing and maintenance operations.
!
WARNING
Do Not Operate the Metallic Pump Head Dry!
In case of failure in dry running conditions, the failing rotating impeller of the
metallic pump head can cause sparks. Precautions must be taken, to avoid
explosive atmospheres within the pump head under any circumstances. Dry
running must be avoided and the pump head must be filled with liquid at any
time while the impeller is rotating.
!
WARNING
Operational Temperature 100 °C T5
Maximum allowed pump liquid temperature is 90 °C / 194 °F for the
use in Ex classified applications.
!
WARNING
Do not operate the pump against closed valves
Refer to the corresponding section in the manual.