Temperature limits, 1 temperatures – KROHNE OPTIFLUX 4040 C Ex EN User Manual
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TEMPERATURE LIMITS
2
9
OPTIFLUX 4040 C
www.krohne.com
09/2010 - 7312232100 - AD EX OPTIFLUX 4040 C R01 en
2.1 Temperatures
The OPTIFLUX 4040 C-EEx compact flowmeter is designed for ambient temperatures in the
range of -40...+60°C.
The allowed process liquid temperature is among others limited by the combustible atmosphere
that (possibly) surrounds the apparatus, which again is determined by the temperature class of
the atmosphere.
Temperature classification DN10...20
Temperature classification DN10...20
Temperature classification DN10...20
Temperature classification DN10...20
Temperature classification DN25...150
Temperature classification DN25...150
Temperature classification DN25...150
Temperature classification DN25...150
Temperature
(for gasses)
Max. surface
temperature
(for dusts)
Maximum process liquid temperature
T
a
≤ 40°C
T
a
≤ 50°C
T
a
≤ 60°C
T6
T85°C
75°C
70°C
70°C
T5
T100°C
95°C
90°C
75°C
T4
T135°C
130°C
115°C
75°C
T3
T180°C
150°C
115°C
75°C
Temperature
(for gasses)
Max. surface
temperature
(for dusts)
Maximum process liquid temperature
T
a
≤ 40°C
T
a
≤ 50°C
T
a
≤ 60°C
T6
T85°C
70°C
70°C
70°C
T5
T100°C
85°C
85°C
85°C
T4
T135°C
120°C
120°C
115°C
T3
T180°C
180°C
180°C
115°C
Use heat-resistant cables
No
No
Yes