Electrical Connection; Degree Of Protection; Post-Connection Check - Endress+Hauser RIA16 Bedienungsanleitung

Wiring
Terminal
3
4.2

Electrical connection

Both the terminal assignment and the connection values of the field display unit correspond to
those of the Ex-version. The device is only designed for operation in a 4 - 20 mA measuring
circuit. There must be potential equalisation along the circuits (within and outside the hazardous
area).
4.3

Degree of protection

The devices fulfill all the requirements for IP 67 degree of protection. Compliance with the
following points is mandatory following installation or servicing in order to ensure that IP 67
protection is maintained:
• The housing seal must be clean and undamaged when inserted into the seal groove. The seal
may have to be cleaned, dried or replaced.
• The cables used for connection must be of the correct specified outside diameter (e.g. M16 x
1.5, cable diameter from 5 to 10 mm).
• Replace any unused cable entries with dummy plugs.
• The grommet used should not be removed from the cable entry.
• The housing cover and the cable entry must be well tightened.
• Install the device upright in such a way that the cable entries point downwards.
4.4

Post-connection check

Perform the following checks after completing electrical installation of the device:
Device condition and specification
Are the device or the cables damaged?
Electrical connection
Is the cable type route completely isolated - without loops and
cross-overs?
Are the cables strain relieved?
Is the terminal assignment correct? Compare with the connection
diagram of the terminal block
Are all terminal screws tightened?
Is the cable gland sealed?
Is the housing cover tightened?
32
Terminal assignment
Digital limit switch (emitter)
Input and output
Switch output
Note
Visual inspection
Note
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→ Chap. 4.1
Visual inspection
Visual inspection
Visual inspection
RIA16
Endress+Hauser