OPTIFLUX Handbook
OPTIFLUX Handbook
OPTIFLUX Handbook
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2 TEMPERATURE LIMITS<br />
<strong>OPTIFLUX</strong><br />
2.2.2 Field versions<br />
Sandwich versions<br />
• The flow sensor is suitable for an ambient temperature range of -20...65°C (DN2,5...15) or -<br />
40...+65°C (DN25...100).<br />
• The minimum process temperature is -20°C (DN2,5...15) or -40°C (DN25...100).<br />
Temperature class<br />
(for gasses)<br />
Maximum surface<br />
temperature for<br />
dust [°C]<br />
Max. process temperature Tp [°C]<br />
T a ≤ 40°C 40 < T a ≤ 50°C 50 < T a ≤ 65°C<br />
T6 85 65 65 60<br />
T5 95 85 85 75<br />
T4 130 125 125 115<br />
T3 180 180 165 140<br />
Use heat<br />
resistance cable<br />
for T p above: 1<br />
165 130 100<br />
1 Cables must withstand a continuous operating temperature of 85 °C.<br />
Flange versions<br />
• The flow sensor is suitable for an ambient temperature range of -40...65°C (DN15...100).<br />
• The minimum process temperature is -40°C.<br />
Temperature class<br />
(for gasses)<br />
Maximum surface<br />
temperature for<br />
dust [°C]<br />
Max. process temperature Tp [°C]<br />
T a ≤ 40°C 40 < T a ≤ 50°C 50 < T a ≤ 65°C<br />
T6 85 80 80 75<br />
T5 95 95 95 95<br />
T4 130 130 130 130<br />
T3 180 180 180 145<br />
Use heat<br />
resistance cable<br />
for T p above: 1<br />
never 165 90<br />
1 Cables must withstand a continuous operating temperature of 85 °C.<br />
20<br />
www.krohne.com 11/2008 • 7.30948.24.00
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