English
EN-5/32
3.
Designated Use
3.1. Operating Data / Maximum Ratings
Caution
Risk of injury!
Adhere to technical specifications and permissible limits.
For technical specifications reference should be made to the type plate,
technical data sheet and technical catalogue!
To be observed specially!
specified motor rating
smallest permitted pulley
diameter
maximum fan speed [rpm]
permissible kind of the medium
permissible medium temperature
Note ATEX category
II 2G IIB T3 or II 3G IIB T3
Fans of this category are designed for areas where an explosive atmosphere
– as a mix of air, gases, vapours or mist - is likely to occur occasionally (2G)
or rarely (3G).
The unit related measures for explosion protection of this category have to
offer the necessary amount of safety, even in the case of frequent unit
troubles or failure modes, to be usually anticipated (predictable troubles).
For the operation of the fans in explosion hazardous areas the relevant
prescriptions, local regulations and directives (ATEX 2014/34/EU) for
manufacturers and user have to be respected.
Permissible conveyed medium temperatures:
Table 3-1:
Maximum ratings
Range ATEX
perm. temperature of
conveyed medium
max. ambient temp.
on drive motor
RZR
-20°C to +40°C (+60°C)
+ 40°C (60°C)
RER
-20°C to +60°C
The temperature range in special cases can be extended to this value if the
coolant temperature is + 60 ° C! (Possibly taking into account a power
reduction according to the manufacturer)
Examples of incorrect use include the following:
Extraction of media with impermissibly high or low temperatures
Extraction of corrosive media
Extraction of very dusty media
