COLASIT AG
Plastic construction
CH-3700 Spiez
Phone +41 (0)33 655 61 61 Fax +41 (0)33 654 81 61
TD-000 675-E
Edition 10/2019, Subject to alteration
Copyright by COLASIT AG Spiez
Page 24
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Form fort he correct assembly ATEX-fans
With ATEX-certified fans, this form must be completed by the fitting team.
It serves to verify the proper mounting of the fan and its operating conditions.
The completed form must be kept by the safety officer or operating company.
It forms the basis of a test voucher quality system which is stipulated by standard EN 14986 (Design of fans
for use in explosive atmospheres).
The fitting team shall certify that they have properly executed the following work:
The fan is mounted on suitable vibration dampers. They are mechanically secured so that the fan
cannot slip away or wander.
For the transitions from the fan to the duct system, elastic sleeves were used to prevent any
vibrations from being transferred to the fan.
The intake and pressure ducting are connected close to the fan.
With free intake/blow off fans, a protective grating with a mesh width of 10mm is fitted.
The clearance between the impeller and the casing is min 5mm and max 20mm.
All rotating parts are protected against unintentional contact.
The fan is installed so that the motor is supplied with sufficient cooling air (distance to walls, etc.)
The motor is properly connected in accordance with the manufacturer's instructions (operating
manual). The same applies to the PTC resistor, if fitted.
The motor and the fan is connected to a potential equalisation system.
Test run:
The minimum air flow through the fan is min 3 m/s and max 30m/s.
The maximum vibration velocity in operation is not greater than 5.1mm/s measured at the bearings
(V-belt drive) or the motor (direct drive).
The operating temperature is lower than the maximum permitted operating temperature specified on
the rating plate.
The motor current draw is lower than the rated current specified on the rating plate.
If one or more of the works listed above cannot be carried out, please contact the supplier of the
manufacturer.
Company name: ...............................................................................................................................
Order number: ..................................................................................................................................
Fan type: ...........................................................................................................................................
Name of fitter: ...................................................................................................................................
Place and date:.................................................................................................................................
Signatur: ...........................................................................................................................................