GE DigitalFlow GF868, Руководство для стартапов

Страница: 57 / 80

DigitalFlow™ GF868 Startup Guide (1 and 2-Channel) 47
Appendix A. CE Mark Compliance
Appendix A. CE Mark Compliance
A.1 Introduction
For CE Mark compliance, the Model GF868 flowmeter must be wired in accordance with the instructions in this
appendix.
IMPORTANT:
CE Mark compliance is required only for units intended for use in EC countries.
A.2 Wiring
The Model GF868 must be wired with the recommended cable, and all connections must be properly shielded and
grounded. Refer to Table 10 for the specific requirements.
A.3 External Grounding
For CE Mark compliance, the electronics enclosure and the transducer fixture must each have an external ground wire
attached.
Note:
If the Model GF868 is wired as described in this appendix, the unit will comply with the EMC Directive
2004/108/EC.
Table 10: Wiring Modifications
Connection Cable Type Termination Modification
Transducer
RG62 a/u Add metallic cable clamp from braid to chassis gnd.
Armored RG62 a/u or conduit None - grounded via cable gland.
Input/Output
22 AWG shielded (e.g. Baystate #78-1197) Terminate shield to chassis ground.
Armored conduit None - grounded via cable gland.
Power
14 AWG, 3 conductor, shielded (e.g. Belden
#19364) An external ground to the chassis is required.
Armored Conduit None - grounded via cable gland.
Shielding
For CE compliance, power and I/O cables must be shielded. Cables to be terminated within cable
gland at the GF868. Shielded cable is not required when installations include metal conduit.