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7. Starting, operation
Ensure that, particularly in the dust hazardous area, the cooling elements
will not be contaminated and that no dust can be deposited on them, because
otherwise the cooling effect cannot be guaranteed.
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Relation of medium temperature to ambient temperature
120
110
100
90
80
70
60
50
40
30
20
10
0
40
Model
PEX15 PEX10, PEX11, PEX13, PEX14
Version
A
Cooling fin
-
Constant K
0.34
Calculation of max. temperature of ambience:
T
= T
+ (T
- T
amb
med
B
med
Betriebsanleitung/Operating instructions/Mode d'emploi/Instrucciones de servicio
A
80
120
B
C
2
3
0.47
0.68
) / K
B
160
200
Temperature of medium (°C)
Calculation of cooling element:
T
= T
- (T
D
B
med
T
= Operation temperature of pressure
B
5
sensor
0.76
T
= max. temperature of process medium
med
T
= max. temperature of ambience
amb
K
= Constant of cooling element
C
240
280
- T
) x K
med
amb
GB
D
320
31
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