RKI Instruments Beacon 110 - Manual (Page 18)

14 Beacon 110 Operator’s Manual
CAUTION: Do not route power and detector head wiring through the same conduit
hub. The power wiring may disrupt the transmission of the detector head
signal to the monitor.
6. Connect the AC wires to the AC power terminal strip as shown in Figure 7 below.
Figure 7: AC Power Wiring
Connecting the DC Power Source
WARNING: Verify that the power source is unplugged or turned off before you continue
with this procedure.
DC power may be used as a primary power source. It may also be used as a backup
power source with a 24 VDC battery if AC power is the primary power source. If your
Beacon 110 does not include the battery charging feature, you may use a self contained
24 VDC backup that keeps its batteries charged while AC power is on and recharges the
batteries when AC power returns after a power failure. If your Beacon 110 includes the
battery charging feature, see “Battery Charging (Optional)” on page 21 for a complete
description of this feature and what type of battery to use. If DC power is the primary
power source, DO NOT connect AC power.
1. Turn off or unplug all incoming power to the Beacon 110.
2. Open the housing door, then place the power switch in the OFF position.
CAUTION: The power switch does not control DC input power.
3. Locate the DC power terminals on the controller terminal strip in the lower right corner
of the main PCB (see Figure 1). They are labelled EXT DC + and EXT DC -.
4. Install an appropriately rated cable bushing or conduit to the left conduit hub on the
bottom of the Beacon 110 housing.
5. Guide a DC power cord or wires through the conduit hub.
CAUTION: Do not route power and detector head wiring through the same conduit
hub. The power wiring may disrupt the transmission of the detector head
signal to the monitor.
Ground
Neutral
Hot (Line)
AC In
Terminal
Strip
L G N
100 VAC, 50/60 Hz
or
115 VAC, 50/60 Hz
or
220 VAC, 50/60 Hz