PR electronics 7501 Manuel De Produit page 51

7501QI01
LERBAKKEN 10, 8410 RØNDE DENMARK. WWW.PRELECTRONICS.COM
Ex nA, ic installation:
For an ambient temperature exceeding 70°C, heat resistant cables and cable glands suitable for at
least 90°C shall be used.
If the transmitter is physically connected to a possible source of heating or cooling, e.g. by
mounting to a process pipe or a temperature sensor, the temperature at the point of connection
shall be within the ambient temperature range as given in the certificate.
Cable entries and blanking elements shall be used that are suitable for the application and correctly
installed.
The enclosure must be connected to the potential matching line
Applied screw terminal torque is max 0.4 Nm on all terminals.
Protection degree of IP 54 according to EN 60529 is achieved if certified cable glands or conduit
entry devices are used that are suitable for the application and correctly installed.
Protection degree of IP 68 according to EN 60529 is only achieved if certified cable glands or
conduit entry devices are used that are suitable for the application and correctly installed with
sealing washers or Loctite sealant added to the threads of the sensor, blanking elements and cable
glands.
For group III (dust), electrostatic charging of the paint layer shall be avoided
Revision date: Version Revision Page:
2015-09-16 V2R0
4/6
7501V108-FR 51