KROHNE OPTITEMP TT 60 C-R EN - Manual (Page 9)

11/2010 – 4000754401 – MA OPTITEMP TT60CR R01 en www.krohne.com 9
IMPORTANT NOTE!
Ambient temperature considerations
The temperature transmitter TT 60 C has been developed for the ambient temperature range
from -40…+ 85°C (-40…+185°F). Please also note that the ambient temperature is also
dependent on the temperature category in Sections 6.1.4 and 6.2.4, Ex data of the ambient
temperature.
The process temperature is also transferred to the transmitter housing via the protective tube.
If the process temperature is close to or exceeds the maximum specified process temperature,
then the temperature in the transmitter housing can rise above the maximum permissible
ambient temperature.
Always check that the ambient temperature where the transmitter is installed is always within
the permissible range.
One way to decrease heat transfer via the protective tube is to make the
protective tube longer or in general to install the transmitter farther away from the heat source.
The same safety measures can be taken if the temperature is below the specified minimum
temperature.