Wiring the Beacon 200 Gas Monitor • 21
Connecting the DC Power Source
WARNING: Verify that mains power to the Beacon 200 is turned off or
disconnected 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 DC power is the primary power source, DO NOT connect
AC power.
The controller terminal strip will accept 24 - 14 AWG wire. Select wire that
is rated to a minimum of 80°C, 0.75 A, and 150V. When selecting wire, be
sure to meet the local electrical code.
1. Turn off or disconnect mains power to the Beacon 200.
2. Open the housing door, then place the power switch in the OFF
position. Locate the DC power terminals on the controller terminal strip
(see Figure 1). They are labelled BAT - and BAT +
3. Install an appropriately rated cable bushing or conduit to one of the
unused conduit hubs on the bottom of the Beacon 200 housing.
4. Guide a DC power cord or wires through the selected 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.
CAUTION: When a battery is used as backup power, the Beacon 200
trickle charges the battery. Do not use a non-rechargeable
battery as backup power. Use RKI backup battery 49-8102RK
or an appropriately rated rechargeable lead acid type battery.
5. Connect the DC wires to the controller terminal strip as shown in
Figure 7.
24 VDC ± 2.5 VDC
+
BAT
BAT +
Controller Terminal Strip
Figure 7. DC Power Wiring
