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Commissioning
54 CoriolisMaster
FCM2000
D184B111U02
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5.3
Information for safe operation – ATEX
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5.3.1 Inspection
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Before installing the flowmeter sensor check for possible damage due to improper handling
during shipment. All claims for damages should be made promptly to the shipper. The instal-
lation requirements are to be observed. The start-up and operation must be in accord with
ElexV (VO in explosion hazardous areas) and EN 60079-14 (Installing Electrical Systems in
Explosion Hazardous Areas). The installation and start-up as well as maintenance may only be
performed by appropriately trained personnel. The start-up procedure described here is begun
after the flowmeter sensor has been installed and the electrical connections completed. The
supply power is turned off.
Warning!
The following information must be observed when the instrument housing is to be opened:
• Assure that an explosion hazard does not exist.
• A fire department permission certificate must have been issued.
• All connection leads must be potential free.
• When the housing is opened the EMC- and personnel contact protection are voided.
The surface temperature of the flowmeter sensor may exceed 70 °C (158 °F) dependent on
the fluid temperature!
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5.3.2 Output
Circuits
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Installation of Intrinsically Safe ”i” or Increased Safety ”e”
The output circuits are designed to be connected to either intrinsically safe or non-intrinsically
safe circuits. A combination of intrinsically safe and non-intrinsically circuits is not permissible.
For intrinsically safe output current circuits Potential Equalization must be maintained along the
entire circuit. The test voltage for the non-intrinsically safe circuits is Um = 60 V. When shipped
the black cable connectors are installed. If the signal outputs are to be connected to intrinsically
safe circuits, it is recommended that the included light blue caps be used for the corresponding
cable connectors.
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Содержание CoriolisMaster FCM2000
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