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22 • Wiring the Beacon 200 Gas Monitor
NOTE: If a 24 VDC battery is used as a backup power source, as long as
AC power is on the Beacon 200 will keep a trickle charge on the
battery to maintain its charge. If AC power is interrupted, the
Beacon 200 will operate from the DC backup battery until the
battery voltage drops to 21.5 volts or less, or until AC power is
restored. Battery recharge time will vary depending on how much
the battery was drained.
Connecting External Alarms
The alarm terminals will accept 24 - 14 AWG wire. Select wire that is rated
to a minimum of 80°C, up to 10 A depending on the device being powered,
and up to 250V depending on the device being powered.
Perform the following procedure to connect external alarm devices to the
Beacon 200.
NOTE: The alarm terminal strip includes terminals for channel alarms
and common alarms. Channel alarms are activated by one
particular channel. Common alarms are activated by either of the
two channels.The example used in this procedure describes
connecting an external alarm device to one of the channel alarm
terminals: the channel 1, alarm 1 terminals.
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 alarm terminal strip (see Figure 1).
3. Install an appropriately rated cable bushing or conduit in an unused
conduit hub on the bottom of the Beacon 200 housing.
4. Guide the wiring of the external alarm device through the selected
conduit hub on the bottom of the Beacon 200 housing.
CAUTION: Do not route the external alarm wiring and detector head
wiring through the same conduit hub. The external alarm
wiring may disrupt the transmission of the detector signal to
the Beacon 200.