20
M
aintenance
ATEX MAINTENANCE REqUIREMENTS
For the fan to function properly in a potentially explosive atmosphere, the following
steps must be carried out in addition to that indicated previously and as already
described in the user and standard basic maintenance manual.
The frequency of the checks can be enhanced at the discretion of the user/customer in the case of particular
requirements or suspicious abnormalities.
24 hours automatic interventions .....................................
24 hours - (0) - Continuous measurement of the bearing temperature with installed probe ..................... 18
24 hours continuous - (0) - Continuous measurement of vibrations with installed probe ......................... 18
24 hours continuous - (0) - Measurement of the rotary speed with installed probe................................... 19
1.000 hours ..........................................................................
1000 hours - (30 mins.) - Visual inspection with the fan stationary and running ....................................... 19
3.000 hours ..........................................................................
3000 hours - (1 hour) - Measurement of vibrations with mobile instrument .............................................. 18
3000 hours - (30 mins.) - Measurement of the earth resistance................................................................ 19
3000 hours - (30 mins.) - Measurement of the rotary speed with a mobile instrument ............................. 19
10.000 hours ........................................................................
10000 hours - (2 hours) - Measurement of the bearing temperature with mobile instrument.................... 18
SCHEDULED MAINTENANCE
Frequency - (time required) - Type of job .............................................................. page
Содержание CH Series
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