RKI Instruments Beacon 410 - Manual (Page 69)

Beacon 410 Gas Monitor Operator’s Manual Troubleshooting • 65
Frequent or
Suspect
Alarms • The Beacon 410
alerts you to
frequent or suspect
alarms.
• The detector heads’
fresh air readings
remain on zero
(20.9 for oxygen)
despite alarm
occurrences.
• The Beacon 410 is
experiencing false
readings due to RFI or
EMI.
• The detector head
wiring has one or
more intermittent
connections.
1. Verify that the detector head wiring is
properly shielded.
2. Verify that the detector head wiring is
correct and secure.
3. Verify that power and detector head
wiring is routed through separate
conduit hubs on the bottom of the
Beacon 410 housing.
4. Increase the alarm on delay setting in
the Configuration Menu.
5. Increase the noise filter in the
Configuration Menu.
6. If the frequent or suspect alarm
difficulties continue, contact RKI for
further instruction.
Momentarily
Unstable
Gas
Readings
on Display • The display reading
for one or more
channels rises or
falls briefly and then
returns to the
normal fresh air
reading. • The Beacon 410 is
experiencing false
readings due to RFI or
EMI.
• The detector head
wiring has one or
more intermittent
connections.
• The noise filter setting
is too low.
• The dead band setting
is too low.
• The display screen is
malfunctioning.
1. Verify that the detector head wiring is
properly shielded.
2. Verify that the detector head wiring is
correct and secure.
3. Verify that power and detector head
wiring is routed through separate
conduit hubs on the bottom of the
Beacon 410 housing.
4. Increase the noise filter setting in the
Configuration Menu.
5. Increase the dead band setting in the
Configuration Menu.
6. If the difficulties continue, contact RKI
for further instruction.
Buzzer not
Working • The buzzer does not
sound an audible
alarm during alarm
conditions.
• The buzzer sounds
weak or broken.
• The buzzer is
disconnected or
misconnected.
• The buzzer is
malfunctioning.
1. Verify that the wiring to the ALARM
BUZZER - and ALARM BUZZER +
terminals of the controller terminal
strip is correct and secure.
2. If the buzzer difficulties continue,
contact RKI for further instruction.
Reset
Switch not
Working • Depending on the
instrument setup,
the buzzer or strobe
does not turn off in
the appropriate
situation when the
reset switch is
pressed.
• The applicable
alarm circuit does
not reset when you
press the reset
switch after an
alarm condition
passes.
• The reset switch is
disconnected or
misconnected.
• The reset switch is
malfunctioning.
• The Beacon 410 is
not properly setup for
the desired reset
switch operation.
1. Verify that the wiring to the ALARM
RESET (2) terminals of the controller
terminal strip is correct and secure.
2. If the reset switch difficulties continue,
contact RKI for further instruction.
3. Make sure that the Beacon 410 is
properly setup in the Global Menu
and Configuration Menus for the
desired reset switch operation.
Table 21: Troubleshooting the Beacon 410 (Continued)
Condition Symptom(s) Probable Causes Recommended Action