KROHNE OPTITEMP TT 51 EN - Manual (Page 14)

3
INSTALLATION
14
TT 51 SERIES
www.krohne.com 09/2010 - 4000754201 - MA TT 51 R01 en
3.3 Rail-mount transmitter
These transmitters are intended for installation on a rail according to DIN 50022.
1 Fix the upper part of the transmitter onto the rail.
2 Press the lower part of the transmitter against the rail.
3 To remove the transmitter, use a screwdriver to bend the locking device using a small screw-
driver. Carefully pull the transmitter in the forward direction.
INFORMATION!
The TT 51 C transmitter has been developed for an ambient temperature of
-40...+85
° C / -40...+185 ° F. Please also note that the ambient temperature is also dependent on
the temperature category. For detailed information refer to 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.
Figure 3-2: Rail installation