RKI Instruments Beacon 110 - Manual (Page 43)

Beacon 110 Operator’s Manual 39
Troubleshooting
The troubleshooting guide describes symptoms, probable causes, and recommended
action for problems you may encounter with the Beacon 110.
NOTE: This troubleshooting guide describes controller problems only. See the detector
head operator’s manual for troubleshooting procedures that apply to the
detector head supplied with your Beacon 110.
Table 9: Troubleshooting the Beacon 110
Condition Symptom(s) Probable Causes Recommended Action
No Power • The display
backlight is off and
the display screen is
blank. • The power wiring is
disconnected or
misconnected.
• One or both AC fuses
is blown.
• The display cable is
disconnected or
misconnected.
1. Verify that the wiring to the power source
is correct and secure.
2. At the Beacon 110, verify that the wiring to
the AC terminals is correct and secure.
3. Check the continuity of the AC fuses.
4. Verify that the display cable is connected.
The display (ribbon) cable plugs into a
connector on the top edge of the control
PCB and on the main PCB below the
control PCB.
5. If the power difficulties continue, contact
RKI for further instruction.
Frequent or
Suspect
Alarms • The Beacon 110
alerts you to
frequent or suspect
alarms while the
detector head’s
fresh air readings
remain on zero
(20.9 for oxygen). • The Beacon 110 is
experiencing false
readings due to RFI or
EMI.
• The detector head
wiring is
disconnected,
misconnected, or
intermittent.
1. Verify that the detector head wiring is
properly shielded (see the detector head
operator’s manual).
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 110 housing.
4. Increase the alarm on delay setting in
Configuration Mode.
5. If the frequent or suspect alarm difficulties
continue, contact RKI for further
instruction.
Flickering
Display • The display reading
flickers often. • The Beacon 110 is
experiencing false
readings due to RFI or
EMI.
• The noise filter setting
is too low.
• The zero suppression
setting is too low.
• The display screen is
malfunctioning.
1. Verify that the detector head wiring is
properly shielded (see the detector head
operator’s manual).
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 110 housing.
4. Increase the filter setting in Configuration
Mode.
5. Increase the zero suppression setting in
Configuration Mode.
6. If the display 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 + & - terminals of the Controller
Terminal Strip is correct and secure.
2. If the buzzer difficulties continue, contact
RKI for further instruction.