ALBIN PUMP ALH - Page 55

Albin Pump ALH Instruction Manual  Albinpump.com  albinpump@irco.com 55
since 1928
ALH
Supplemental Instructions
for ATEX Certied Materials
For pumps II 2G T4
Use of a PT100 temperature sensor only in a gas atmosphere.
The permanent control of the maximum surface temperature of the pump housing makes it possible to
control the heating of the pump eectively.
In the event of dysfunction of the pump (excessive rotation, too high temperature of pumped product,
unsuitable shimming of the shoes…), the temperature sensor will detect any passing over the critical
temperature of the body and will stop the pump before the surface temperatures of the pump exceed
the limit corresponding to the classication of temperature (T) of the pump.
The threshold of release of the temperature sensor will have to be adjusted from 0°C (32°F) to
75°C (165°F) more or less 5°C (41°F), with a 10°C (50°F) hysteresis.
For the certified pumps II 3G T4, II 2D and II 3D :
For dust zones, D becomes IP6X
According to the specic requirements for ATEX materials group II category 3, the use of such materials
in an exposable atmosphere is adapted only under normal working conditions of the known material.
Thus, the end-user must make sure that the pump is used under normal working conditions, and that
the particular working limits indicated in this manual are respected.
3 - Protection of the transmission part
The reducer and the motor which motorize the pump must be used within the limits of working dened
by the manufacturers of these materials. Going beyond these limits is likely to generate a risk of
ignition of the atmosphere surrounding the material.
The ALBIN PUMP installations are in particular designed so that the normal working conditions of the
pump do not generate an overload of the motor or the reducer.
So that the function limits of these components are not exceeded, even in case of dysfunction of the
pump, the motor will have to be protected from the overcurrent, in accordance with the code of practice.