UTC Fire and Security DET-TRONICS FlexVu UD10 Instructions Manual page 17

Device Faults
EE Fault Fault in non-volatile memory
Sensor signal level is outside the range of the AD
Ref ADC Sat
converter
Sensor signal level is outside the range of the AD
Active ADC Sat
converter
24V Fault Problem in 24 volt power supply or power wiring
Flash CRC Fault Memory fault
RAM Fault Fault in volatile memory
Low Voltage Power supply voltage outside of limits
Temp Fault Temperature sensor fault
Software Fault internal software fault
EE Safety Fault internal configuration fault
Gas Under Range Sensor signal has drifted negative
Sensor Mismatch Wrong sensor type is installed
ADC CNTR Fault internal hardware fault
3V Fault 3 volt internal power supply out of tolerance
Comm Fault Communication fault
GEN Fault Unspecified fault
12V Fault 12 volt internal power supply out of tolerance
5V Fault 5 volt internal power supply out of tolerance
4.3
Table 4—Troubleshooting Guide - Device Faults, Continued
Description
15
Recommended Action
Power may have been interrupted while the device
was updating its internal data logs. Recycle
power.
Return to factory.
Return to factory.
Check power wiring and output voltage of power
supply.
Return to factory.
Return to factory.
Check power supply voltage.
Return to factory.
Return to factory.
Return to factory.
Return to factory.
Device may have been calibrated with background
gas present. Recalibrate the detector. Purge with
clean air if needed.
Sensor type must match configuration. Change
sensor or configuration.
Return to factory.
Return to factory.
Check detector wiring and power supply.
Verify correct power wiring and supply voltage.
Consult the factory.
Return to factory.
Return to factory.
95-8618