RKI Instruments Beacon 200 - Manual (Page 52)

52 • Troubleshooting
Troubleshooting
The troubleshooting guide describes symptoms, probable causes, and
recommended action for problems you may encounter with the Beacon
200.
NOTE: This troubleshooting guide describes controller problems only.
See the detector head instruction manual(s) for trouble shooting
procedures that apply to the detector head(s) supplied with your
Beacon 200.
Table 11: Troubleshooting the Beacon 200
Condition Symptom(s) Probable Causes Recommended Action
No Power • The PILOT light is off.
• The display screens
are blank.
• The power wiring is
disconnected or
misconnected.
• One or both AC fuses or
the DC fuse 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 200, verify that the wiring to
the AC terminals is correct and secure.
3. Check the continuity of the applicable (AC
or DC) fuse.
4. Verify that the display cable is connected.
The display (ribbon) cable plugs into
connectors on the top edge of the
display board (labeled J1) and on the
top edge of the main circuit board
(also labelled J1).
5. If the power difficulties continue, contact
RKI for further instruction.
Frequent or
Suspect
Alarms • The Beacon 200 alerts
you to frequent or
suspect alarms.
• The detector head’s
fresh air readings
remain on zero
(20.9 for oxygen).
• The Beacon 200 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
instruction 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 200 housing.
4. Increase the alarm on delay setting in the
Channel Control & Setup Program.
5. If the frequent or suspect alarm difficulties
continue, contact RKI for further
instruction.
Flickering
Display • The display readings
flicker often. • The Beacon 200 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
instruction 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 200 housing.
4. Increase the noise filter setting in the
Channel Control & Setup Program.
5. Increase the zero suppression setting in
the Channel Control & Setup Program
6. If the display difficulties continue, contact
RKI for further instruction.