Connecting the dc power source – RKI Instruments Beacon 800 User Manual
Page 16

13 • Wiring the Beacon 800 Gas Monitor
Beacon 800 Gas Monitor Operator’s Manual
4.
Connect the AC power wires to the AC terminal strip and the earth ground wire to the
# 10 ground stud as shown in Figure 6.
Figure 6: AC Power Wiring
Connecting the DC Power Source
WARNING:
Verify that the power source is unplugged or turned off at the power
source end 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.
1.
Locate the controller terminal strip (see Figure 1 on page 4).
2.
Install an appropriately rated cable bushing or conduit in an unused conduit hub on
the bottom of the Beacon 800 housing.
3.
Guide a DC power cord or two wires in conduit through the selected conduit hub on
the bottom of the Beacon 800 housing.
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.
4.
Connect the DC line to the controller terminal strip as shown in Figure 7.
Figure 7: DC Power Wiring
NEUT
GND
AC Terminal Strip
AC Power
Source
LINE
Hot
Neutral
GND Factory Wired to Ground Stud
Earth Ground
BAT-
BAT+
DC Power
Source
Controller
Terminal Strip
+
24VDC