ABB FCM2000 Inbetriebnahmeanleitung Seite 60

Commissioning
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The safety specifications for intrinsically safe circuits can be found on the EC type-
examination certificate.
• Make sure that the cover over the voltage supply connection is tightly closed. With
intrinsically safe output circuits, the terminal box can be opened.
• It is recommended that you use the cable glands supplied (not for the -40 °C [-40 °F]
version) for the output circuits as appropriate for the relevant type of protection:
•
•
• The sensor and the transmitter housing must be connected via the equipotential bonding.
For intrinsically safe current outputs, equipotential bonding needs to be in place all the way
along the circuits.
• If the sensor is insulated, the maximum insulation thickness is 100 mm (4"). The transmitter
housing must not be insulated.
• After switching off the flowmeter, wait t > 2 minutes before opening the transmitter housing.
• When commissioning the flowmeter, refer to EN 61241-1:2004 regarding use in areas
containing combustible dust.
• The operator must ensure that, when connecting the protective conductor (PE), no potential
differences exist between the protective conductor and the equipotential bonding (PA), even
in the event of a fault.
Special information for use in Category 1:
• The inside of the meter tube or nominal sizes ≥ DN 50 (2") may correspond to Category 1
(Zone 0). The corrosion resistance of the materials must be taken into account.
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5.2.4 Isolation: MC26.., MC27..
Fig. 11
1 max. 100 mm (4")
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26 - EN
Intrinsically safe: Blue
Non-intrinsically safe: Black
The pipeline and the flowmeter sensor insulation should be installed as shown.
The max. insulation thickness at the flowmeter sensor is 100 mm (4").
CoriolisMaster FCM2000
1
G00331
CI/FCM2000-EN