RKI Instruments Beacon 410 - Manual (Page 68)

64 • Overview Beacon 410 Gas Monitor Operator’s Manual
Chapter 10: Maintenance
Overview
This chapter describes preventive maintenance procedures for the Beacon 410 and how
to replace the AC fuses. It includes a troubleshooting guide for problems you may
encounter with the Beacon 410.
Preventive Maintenance
Preventive maintenance of the Beacon 410 consists of daily, monthly, and quarterly
procedures to ensure that the installed detector heads remain on zero (20.9 for oxygen) in
fresh air and are responsive to the target gas. See the detector head operator’s manuals
for preventive maintenance procedures for each installed detector head.
Troubleshooting
Table 21 describes symptoms, probable causes, and recommended actions for the most
common problems you may encounter with the Beacon 410.
NOTE: This troubleshooting guide describes Beacon 410 problems only. See the
detector head operator’s manuals for preventive maintenance procedures that
apply to the detector heads installed on your Beacon 410.
Table 21: Troubleshooting the Beacon 410
Condition Symptom(s) Probable Causes Recommended Action
No Power to
Instrument
and/or
Display
PCB • The PILOT light is
off.
• The display screen
is blank.
• The power wiring is
disconnected or
misconnected.
• The AC 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 410, verify that the
wiring to the AC in terminal strip 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
rectangular connector on the top edge
of the control PCB and on the top
edge of the main PCB (labeled Front
Panel).
5. If the power difficulties continue,
contact RKI for further instruction.