ABB FCM2000 Inbetriebnahmeanleitung Seite 62

Commissioning
Cables and cable entries
The devices are supplied either with cable glands or with 1/2" NPT threads; you specify which
you require in the order number. The cable glands supplied are ATEX-/IECEx-certified. In order
to achieve the required tightness, the outer cable diameter must be between 5 mm (0.2") and 9
mm (0.35").
Warning – Risk to persons!
Devices certified in accordance with CSA are only ever supplied with 1/2" NPT threads without
glands.
However, it is also possible to supply devices certified in accordance with ATEX or IECEx with
1/2" NPT threads without glands. In such cases, the user is responsible for ensuring that the
cable piping/glands are installed in accordance with the relevant national standards (e.g.,
NEC, CEC, ATEX 137, IEC 60079-14, etc.).
M12 PROFIBUS cable plug
Warning – Risk to persons!
The M12 plug is not approved for use with combustible dusts. In Zone 2, the plug may only be
operated with energy-limited circuits (nL) such as FNICO.
Special requirements of models ME2 / MC2 M, N (Zone 2 devices)
The transmitter housing (rectangular or round, compact or separate) can be operated in Zone 2
with protection class "restricted breathing" (nR). In such cases, please take note of the
following:
Warning – Risk to persons!
The user must check the device in accordance with IEC 60079-15 each time installation or
maintenance has been performed, or each time the housing has been opened.
Switch off the voltage supply and wait for at least two minutes before opening the housing. Then
remove a cable gland which is not being used. Cable glands certified to ATEX or IECEx are
usually used, e.g., M20 x 1.5 or 1/2" NPT thread. The device being used to test the pressure is
then attached to this gland. The user is responsible for ensuring that the device is sealed and
installed correctly.
Re-insert the gland following the pressure test.
Before the supply power is switched on again, the housing, seals, thread, and cable entries
must be subjected to a visual inspection. There must be no signs of any damage.
Notice - Potential damage to parts!
When selecting the installation site, ensure that the housing will not be exposed to direct
sunlight. The ambient temperature limits must be observed. If direct sunlight cannot be
avoided, appropriate sun protection equipment must be installed.
For FNICO or FISCO installations, the number of devices must be limited as per the
applicable standard.
Pos: 21.19 /Standard-Layout/======= Seitenumbruch ======== @ 0\mod_1126532365768_3101.doc @ 3830 @ @ 1
28 - EN CoriolisMaster FCM2000 CI/FCM2000-EN