November 2022
Installation, Operation and Maintenance Manual
MAC050515 EN Rev. 0
ATEX Instructions in Explosive Areas
4
Section 2: ATEX Instructions in Explosive Areas
!
WARNING
The actuator’s surface temperature is dependent upon process operating conditions.
If the actuator's surface temperature exceeds the acceptable temperature for the
hazardous area classication, it can catch re or in worst case can explode causing personal
injury and property damage. To avoid an increase of instrumentation and/or accessory
surface temperature due to process operating conditions, ensure adequate ventilation,
shielding, or insulation of these actuator components installed in a potentially hazardous
or explosive atmosphere.
NOTE:
The specied values are valid with the following conditions:
— Maximum working frequency of the actuator is 1 Hz at a maximum of 50 cycles per hour and at
maximum load.
Temperature
Valid for actuator model
Ambient range ATEX class
TX (ATEX surface
temperature)
-20 °C to +75 °C T6 T85 °C (185 °F)
Standard temperature models-20 °C to +80 °C T5 T90 °C (194 °F)
-20 °C to +80 °C T1 to T4 T90 °C (194 °F)
-20 °C to +75 °C T6 T85 °C (185 °F)
High temperature models-20 °C to +90 °C T5 T100 °C (212 °F)
-20 °C to +120 °C T1 to T4 T130 °C (266 °F)
-40 °C to +75 °C T6 T85 °C (185 °F)
Low temperature models-40 °C to +80 °C T5 T90 °C (194 °F)
-40 °C to +80 °C T1 to T4 T90 °C (194 °F)
-20 °C to +250 °C for
2 hours
T2 T260 °C (500 °F) Tunnel application models
2.3 Temperature Range for (Potential)
Explosive Areas
Table 3. Actuator model classication according to maximum
surface temperature
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