RKI Instruments Pioneer 4W - Manual (Page 38)

34 • Maintenance Pioneer Gas Monitor Operator’s Manual
Frequent or Suspect Alarms
Symptoms
• The Pioneer alerts you to frequent or suspect alarms, but the detector’s fresh air
readings remain on zero (20.9 for oxygen).
Probable causes
• The Pioneer is experiencing false readings due to Radio Frequency Interference (RFI)
or Electromagnetic Interference (EMI).
• The detector wiring is disconnected, misconnected, or intermittent.
Recommended action
1. Verify that the detector wiring is properly shielded (see the Installation section(s) in
Appendix B, Gas Detectors.)
2. Verify that the detector wiring is correct and secure.
3. Verify that power and detector wiring is routed through separate conduit hubs on the
bottom of the Pioneer housing.
4. Increase the alarm on delay setting in the Instrument Setup program (see Chapter 4,
Operation).
5. If the frequent or suspect alarm difficulties continue, contact RKI Instruments, Inc., for
further instruction.
Flickering Display
Symptoms
• The display readings flicker often.
Probable causes
• The Pioneer is experiencing false readings due to Radio Frequency Interference (RFI)
or Electromagnetic Interference (EMI).
• The noise filter setting is too low.
• The zero suppression setting is too low.
• The display screen is malfunctioning.
Recommended action
1. Verify that the detector wiring is properly shielded (see the Installation section(s) in
Appendix B, Gas Detectors.)
2. Verify that the detector wiring is correct and secure.
3. Verify that power and detector wiring is routed through separate conduit hubs on the
bottom of the Pioneer housing.
4. Increase the noise filter setting in the Instrument Setup program (see Chapter 4,
Operation).
5. Increase the zero suppression setting in the Instrument Setup program (see Chapter 4,
Operation).
6. If the display difficulties continue, contact RKI Instruments, Inc., for further
instruction.