Appendix A. CE Mark Compliance
A-1
DigitalFlow™ GC868 Startup Guide (1 and 2-Channel)
A.1 Introduction
For CE Mark compliance, the Model GC868 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 EEC
countries.
A.2 Wiring
The Model GC868 must be wired with the recommended cable, and all connections
must be properly shielded and grounded. Refer to Table A-1 below 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 GC868 is wired as described in this appendix, the unit will
comply with the EMC Directive 89/336/EEC.
Table A-1: Wiring Modifications
Connection
Cable Type
Termination
Modification
Transducer
RG62 a/u
Add metallic cable
clamp from braid to
chassis ground.
Armored RG62 a/u or
conduit
None - grounded via
cable gland.
Input/Output
22 AWG shielded
Terminate shield to
chassis ground.
Armored conduit
None - grounded via
cable gland.
Power
14 AWG, 3 conductor,
shielded
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 are to be terminated within the
cable gland at the GC868. Shielded cable is not
required when installations include metal conduit.