Baker Hughes Panametrics Sentinel LCT8, User Manual

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Appendix A. CE Mark
compliance and high
noise environments
A.1 Introduction
For CE Mark compliance, the Sentinel LCT8 flow transmitter
must meet the EMC and LVD directives.
IMPORTANT
CE Mark compliance is required for all units intended
for use in EU countries, and is also recommended for
installation in high electrical noise environments.
A.2 EMC compliance
In addition to the standard wiring requirements, the
electrical connections must be shielded and grounded
as described in Table 20 below for EMC compliance.
After all the necessary electrical connections have been
made, seal any unused cable entry holes.
NOTE: If the instructions in this appendix are followed,
the unit will comply with the EMC Directive.
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Table 20: Wiring modifications
Connection Cable type Termination modification
Transducer Shielded cable Terminate the shield using the cable glands (already done).
Power Shielded cable Terminate the shield to the case using the cable glands.
Shielding Wires enclosed in a properly-grounded metal conduit do not require additional shielding.
All input/output options Shielded cable
Terminate the shields to the case using the cable glands or to the
closest screw on the bus bar inside the enclosure.
IMPORTANT
Make sure to connect the Sentinel LCT8 case to the
earth ground with a grounding cable, using the external
ground screws found on either side of the enclosure. The
connection should be less than 9.8 feet (3 meters) long.
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