Maximum Temperatures - EL-O-MATIC F-Serie Betriebshandbuch Und Sicherheitshandbuch

Section 5: Instructions for Use in Explosive Areas
February 2021
5.3
12

Maximum Temperatures

!
WARNING
The actuator's surface temperature is dependent upon process operating
conditions. Personal injury or property damage, caused by fire or explosion,
can result if the actuator's surface temperature exceeds the acceptable
temperature for the hazardous area classification. 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.
Table 3. Temperature range for (potential) explosive areas
Ambient range
-20 °C (-4 °F) - 75 °C (167 °F)
-20 °C (-4 °F) - 80 °C (176 °F)
-10 °C (14 °F) - 90 °C (194 °F)
-10 °C (14 °F) - 120 °C (250 °F)
-40 °C (-40 °F) - 75 °C (167 °F)
-40 °C (-40 °F) - 80 °C (176 °F)
The specified values are valid with the following conditions:
Maximum cycle frequency of the actuator is 1 Hz at a maximum of
50 cycles per hour and at maximum load.
Temperature
Temperature
class
T6
T5
T5 T100°C (212 °F)
T4 T130°C (266 °F)
T6
T5
Instructions for Use in Explosive Area
Safety Guide
DOC.SG.EF.EN Rev. 4
Valid for
actuator
TX (surface
model
temperature)
T85°C (185 °F)
S = Standard
Temperature
T90°C (194 °F)
H = High
Temperature
T85°C (185 °F)
L = Low
Temperature
T90°C (194 °F)