KROHNE OPTIFLUX 2000-4000-5000-6000-7300-IFC 300 Ex EN - Manual (Page 21)

TEMPERATURE LIMITS
2
21
OPTIFLUX
www.krohne.com 07/2010 - 7309482600 - AD EX IFC 300 R06 en
DN350...3000 ("e")
DN25...150 ("qe")
Temperature class Max. process temperature Tp [°C]
T
a
≤ 40°C 40 < T
a
≤ 50°C 50 < T
a
≤ 60°C
T6 60 60 60
T5 80 75 75
T4 115 115 115
T3 1 160 150 140
Use heat resistant
cables for T
p
above: 2
Not needed 145 110
1 For some versions the process temperature for T3 is restricted to 130°C. This version is identified by extra text (/RT)
on the data sticker.
2 Cables must withstand a continuous operating temperature of 85°C.
Temperature class Max. process temperature Tp [°C]
T
a
≤ 40°C 40 < T
a
≤ 50°C 50 < T
a
≤ 60°C
T5 60 55 -
T4 110 105 100
T3 180 180 180
Use heat resistant
cables for T
p
above: 1
Not needed 155 105
1 Cables must withstand a continuous operating temperature of 85°C.