Panametrics Sentinel LCT, User Manual

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Sentinel LNG User’s Manual 219
Appendix B. CE Mark Compliance and High Noise Areas
Appendix B. CE Mark Compliance and High Noise Areas
B.1 Introduction
For CE Mark compliance, the
Sentinel LNG
flow transmitter must meet the EMC and LVD directives.
IMPORTANT: CE Mark compliance is required only for units intended for use in EEC countries, and is recommended
for high electrical noise areas.
B.2 EMC Compliance
In addition to the standard wiring requirements, the electrical connections must be shielded and grounded as in
Table 5 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 2004/108/EC.
Note: Make sure to connect the
Sentinel LNG
case to the earth ground with a grounding cable, using the external
ground screws found on either side of the enclosure
*Terminate the cable shields to the closest screw on the bus bar inside the enclosure.
Table 5: 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 shield to the case.*