KROHNE OPTIFLUX 2000-4000-5000-6000-7300-IFC 300 Ex EN - Manual (Page 22)

2
TEMPERATURE LIMITS
22
OPTIFLUX
www.krohne.com 07/2010 - 7309482600 - AD EX IFC 300 R06 en
2.2 OPTIFLUX 5000
The maximum process temperature T
p
is dependent on the required temperature class T6...T3
and the maximum ambient temperature T
a
.
2.2.1 Compact versions
Sandwich versions Sandwich versions Sandwich versions Sandwich versions
• For dust hazardous areas, the maximum surface temperature is equal to the process
temperature with a minimum of 85 °C.
• The OPTIFLUX 5300 C "sandwich" is suitable for an ambient temperature range of
-20...60°C (DN2.5...15) or -40...+60°C (DN25...100).
• The minimum process temperature is -20°C (DN2.5...15) or -40°C (DN25...100).
Flange versions Flange versions Flange versions Flange versions
• The OPTIFLUX 5300 C "flange" is suitable for an ambient temperature range of
-40...+60°C.
• The minimum process temperature is -40°C.
Temperature class Max. process temperature Tp [°C]
T
a
≤ 40°C 40 < T
a
≤ 50°C 50 < T
a
≤ 60°C
T6 60 55 -
T5 75 75 70
T4 115 115 75
T3 150 135 75
Temperature
class Max. surface
temperature for
dust [°C] Max. process temperature Tp [°C]
T
a
≤ 40°C 40 < T
a
≤ 50°C 50 < T
a
≤ 60°C
T6 85 80 80 60
T5 100 95 95 60
T4 135 135 130 60
T3 150 150 145 60