RKI Instruments Beacon 200 - Manual (Page 33)

Alarm Indications • 33
Low battery condition indications
The Beacon 200 senses a low battery condition when:
• AC power is disconnected, misconnected, or interrupted
AND
• the DC power source is 21.5 volts or less
When the Beacon 200 senses a low battery condition, it alerts you as
follows:
• The FAIL light turns on.
• The top display screen displays the SUPPLY VOLTAGE IS TOO LOW,
LOW POWER STANDBY message and the actual voltage of incoming
DC power.
Responding to a low battery condition
This section suggests response to a low battery condition.
• If DC power is the primary power source:
1. For a temporary DC power source, disconnect primary DC power at
the Beacon 200, then connect a 24 VDC backup battery.
2. Determine and correct the cause of primary DC power loss.
When the DC power source rises above 22.0 volts, the Beacon 200
begins the warm up process.
• If DC power is the backup power source:
1. Replace or recharge the 24 VDC backup battery to resume backup
power capability.
2. Determine and correct the cause of primary AC power loss.
When backup DC or primary AC power is restored, the Beacon 200
begins the warm up process. When AC power is restored, the Beacon
200 charges the backup battery until it is fully recharged. Charge time
varies depending on the battery size and how much the battery was
depleted. Once the battery is fully charged, the Beacon 200 reverts to a
trickle charge to maintain the battery charge.