Making Electrical Connections; Preparing The Unit; Wiring The Line Power - GE AquaTrans AT868 User Manual

September 2004
Making Electrical
Connections

Preparing the Unit

Wiring the Line Power

1-4
This section contains instructions for making all the necessary
electrical connections to the Model AT868 flow transmitter. Refer to
Figure 1-4 on page 1-14 for a complete wiring diagram.
!ATTENTION EUROPEAN CUSTOMERS!
To meet CE Mark requirements, all cables must be installed
as described in Appendix B, CE Mark Compliance.
Always disconnect the line power from the Model AT868
before removing front cover.
Prepare the unit as described below before making any electrical
connections.
1. Disconnect any previously wired power line from the unit.
2. Remove the screws on the front cover.
3. Remove the plastic shroud that protects the electrical connections
by loosening the two screws and lifting the plastic.
Note: For compliance with the European Union's Low Voltage
Directive (73/23/EEC), a transparent plastic shroud protects
the electrical connections. The shroud must remain in place,
except while wiring the unit. Reinstall the shroud after the
wiring has been completed.
4. Install any required cable clamps in the appropriate conduit holes
on the bottom of the enclosure.
5. Note the labels inside the enclosure to assist in wiring.
Proceed to the appropriate section of this chapter to make the desired
wiring connections.
The Model AT868 may be ordered for operation with power inputs of
85-265 VAC or 12-28 VDC. The label on the side of the electronics
enclosure lists the meter's required line voltage and power rating. The
fuse size is listed on label located under the fuse. Be sure to connect
the meter only to the specified line voltage.
Note: For compliance with the European Union's Low Voltage
Directive (73/23/EEC), this unit requires an external power
disconnect device such as a switch or circuit breaker. The
disconnect device must be marked as such, clearly visible,
directly accessible, and located within 1.8 m (6 ft) of the
Model AT868.
!WARNING!
Installation