RKI Instruments Beacon 800 - Manual (Page 32)

29 • Overview Beacon 800 Gas Monitor Operator’s Manual
Chapter 6: Maintenance
Overview
This chapter describes corrective maintenance procedures for the Beacon 800 Gas
Monitor. The chapter includes a troubleshooting guide for problems you may encounter
with the Beacon 800. Procedures to replace components of the Beacon 800 are at the end
of this chapter.
Preventive Maintenance
Preventive maintenance of the Beacon 800 consists of daily, monthly, and quarterly
procedures to ensure that the detector heads remain on zero (20.9 for oxygen) in fresh air
and are responsive to the target gas. See the detector head instruction manual(s).
Troubleshooting
Table 8 describes symptoms, probable causes, and recommended actions for the most
common problems you may encounter with the Beacon 800.
NOTE: This troubleshooting guide describes controller problems only. See the detector
head instruction manual(s) for preventive maintenance procedures that apply to
the detector head(s) supplied with your Beacon 800.
Table 9: Troubleshooting the Beacon 800
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.
• The AC or 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 800, verify that the
wiring to the AC terminal strip 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 left corner of
the display board (labeled J1) and on
the left edge of the main circuit board
(labeled Front Panel/Power Relay).
5. If the power difficulties continue,
contact RKI for further instruction.