RKI Instruments Pioneer 4W - Manual (Page 37)

Pioneer Gas Monitor Operator’s Manual Maintenance • 33
Chapter 5: Maintenance
Overview
This chapter describes corrective maintenance procedures for the Pioneer Gas Monitor.
It includes a troubleshooting guide for problems you may encounter with the Pioneer.
Procedures to replace components of the Pioneer are at the end of this chapter.
Preventive Maintenance
Preventive maintenance of the Pioneer consists of daily, monthly, and quarterly
procedures to ensure that the detectors remain on zero (20.9 for oxygen) in fresh air and
are responsive to gas. Appendix B, Gas Detectors, includes preventive maintenance
schedules for the detectors supplied with your Pioneer.
Troubleshooting
The troubleshooting guide describes symptoms, probable causes, and recommended
action for problems you may encounter with the Pioneer.
NOTE: This troubleshooting guide describes controller problems only. See the
Troubleshooting guide in the applicable manual insert (Appendix B,
Gas Detectors) for problems you may encounter with the detectors.
No Power
Symptoms
• All status lights are off.
• The display screen is blank.
Probable causes
• The power wiring is disconnected or misconnected.
• The AC or DC fuse is blown.
• The display cable is disconnected.
Recommended action
1. Verify that the wiring to the power source is correct and secure.
2. At the Pioneer, 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 bottom of the display board and directly above the transformer.
5. If the power difficulties continue, contact RKI Instruments, Inc., for further
instruction.