KROHNE OPTIFLUX 4000 F, Руководство пользователя

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Hazardous area supplement to the QuickStart
5 OPTIFLUX
OPTIFLUX 4000 DN 25 -150 (EEx qe coils, optional)
Temperature class Max. process temperature Tp (in °C)
Ta ≤ 40°C 40°C < Ta ≤ 50°C 50°C< Ta ≤ 60°C
T5 60 55 Not possible
T4 110 105 100
T3 180 180 180
use heat resistant
cables for Tp above* Not needed 155 105
OPTIFLUX 4000 DN 200 - 300 (EEx e coils, optional)
Temperature class Max. process temperature Tp (in °C)
Ta ≤ 40°C 40°C < Ta ≤ 50°C 50°C< Ta ≤ 60°C
T6 60 60 60
T5 80 75 75
T4 115 115 115
T3 160 150 140
use heat resistant
cables for Tp above* Not needed 145 110
*The heat resistant cables must have a continuous operating temperature of at least 85°C.
•
The OPTIFLUX 4300 C is suitable for ambient temperature range of -40°C … +60°C.
• The minimum process temperature for all DN sizes is -40°C. The process temperature limit (Tm) is determined by the
temperature class T6..T3 of the gas hazardous area of concern, the maximum ambient temperature (Ta), and the
nominal diameter.
•
For dust hazardous areas, the maximum surface temperature is equal to the medium temperature with a minimum of
85°C.
•
For ease of reference the flowmeter variants are simply denoted by main type of EEx-protection of the flow sensor,
e.g. EEx m for DN 10-20 range instead of the official EEx me.
OPTIFLUX 4300 C DN 10-20 (EEx m)
Temperature class (for gasses)
Maximum medium temperature ( in °C)
Ta ≤ 40°C 40 < Ta ≤ 50°C 50 < Ta ≤ 60°C
T6
70 60 -
T5
95 85 60
T4
130 130 60
T3
150 150 60
OPTIFLUX 4300 C DN 25-150 (EEx d)
Temperature class (for gasses)
Maximum medium temperature ( in °C)
Ta ≤ 40°C 40 < Ta ≤ 50°C 50 < Ta ≤ 60°C
T6
80 80 80
T5
95 95 80
T4
130 130 80
T3
150 150 80
OPTIFLUX 4300 C DN 25-150 (EEx q)
Temperature class (for gasses)
Maximum medium temperature ( in °C)
Ta ≤ 40°C 40 < Ta ≤ 50°C 50 < Ta ≤ 60°C
T5
50 Not possible Not possible
T4
100 95 80
T3
150 150 80