Alarm indications, Alarm indications • 29 – RKI Instruments Beacon 200 User Manual
Page 29
Alarm Indications • 29
Alarm Indications
This section describes the Beacon 200 in alarm 1, alarm 2, and fail
conditions and suggests response to these conditions. Table 6 below lists
the alarm indications for each condition.
NOTE: The Beacon 200 includes alarm on and alarm off delay settings for
each channel and level of gas alarm. The alarm indications
described in this section operate according to the factory set delay
settings. See the Configure Channel Settings Menu section of
Chapter 5 for all the factory settings.
NOTE: You can select normally energized (NE) or normally de-energized
(NDE) channel relay settings in the Channel Control & Setup
menu. The following sections describe the default setting for the
channel relays which is NDE.
Common alarm 1 and alarm 2 relays are factory-set as NDE, and
the common fail relay is factory set as NE. The common relays’
NE/NDE settings are not user-adjustable.
Table 6: Visual and Audible Alarm Indications
Condition
Cause
Visual Indication(s)
Audible
Indication
Alarm 1
1
Increasing (decreasing for O
2
) gas
reading at or above the alarm 1 setpoint
•
ALARM 1 light is on
•
Gas reading flashes and
alternates with ALARM-1
message
Pulsing tone
Alarm 2
1
Increasing gas reading at or above the
alarm 2 setpoint
•
ALARM 2 light is on
•
Gas reading flashes and
alternates with ALARM-2
message
Pulsing tone
Fail
•
Disconnected or misconnected detector
wiring
•
Display reading below -10% of full scale or
lower
•
Defective components
•
FAIL light is on
•
FAIL message flashes in place
of gas reading
Steady tone
Low Battery
2
No AC power and DC power source
(primary or backup) less than 21.5 volts.
•
FAIL light is on
•
SUPPLY VOLTAGE IS TOO
LOW LOW POWER
STANDBY message and actual
voltage of incoming DC power
None
*
1
If the Beacon 200 is in both an alarm 1 and an alarm 2 condition, both alarm lights are on and the display
alternates between the gas reading and the ALARM-1 ALARM-2 message.
*
2
If DC power is used as primary or backup power source.