Panametrics DigitalFlow XGF868i, Руководство для стартапов, Страница: 17 / 90

DigitalFlow™ XGF868i Startup Guide 7
Chapter 1. Installation
1.7.1 Wiring the Line Power
The XGF868i may be ordered for operation with power inputs of 100-120 VAC, 220-240 VAC, or 12-28 VDC. The label on
the side of the electronics enclosure lists the required line voltage and the power rating for the unit. Be sure to
connect the meter only to the specified line voltage. The fuse size is listed in Table 1 below.
IMPORTANT: For compliance with the EU Low Voltage Directive (2006/95/EC), 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 unit.
Note: Only use Class 2 Rated Power supply for line power connection to DC instrument.
Refer to Figure 7 on page 21 to locate terminal block TB5 and connect the line power as follows:
1. Prepare the line power leads by trimming the line and neutral AC power leads (or the positive and negative DC
power leads) to a length 0.5 in. (1 cm) shorter than the ground lead. This ensures that the ground lead is the last
to detach if the power cable is forcibly disconnected from the meter.
2. Install a suitable cable clamp in the conduit hole indicated in Figure 7 on page 21 . If possible, avoid using the
other conduit holes for this purpose, to minimize any interference in the circuitry from the AC power line.
Table 1: Line Voltages and Fuse Ratings
Line Voltage Fuse Rating
85-250 VAC Not field-replaceable (contact
Panametrics)
12-28 VDC 2.0 A, Slow-Blow
HIGH VOLTAGE!
Improper connection of the line power leads or connecting the meter to the
incorrect line voltage may damage the unit. It may also result in hazardous voltages at the
flowcell and associated piping as well as within the electronics enclosure.
WARNING!
To meet CE Mark requirements, all cables must be installed as described in
Appendix A, CE Mark Compliance .