Temperature limits – KROHNE OPTIFLUX 2000-4000-5000-6000-7300-IFC 300 Ex EN User 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.