Appendix A
18 ULTIMA X5000 Gas Monitor Safety Manual
US
Priority
1
Display Message Status LEDs (G/Y/R) Description Resolution
30 “External Memory
Checksum Error”
ON/ON/OFF Indicates the EEPROM
memory is not valid.
Select Controller Data
Reset from Instrument
menu.Verify any
custom settings and re
calibrate the
instrument.
3 “Flash Checksum
Fault”
ON/ON/OFF Indicates there is
something incorrect
with the main PCBA’s
program.
Replace the main
PCBA.
8 “General System
Error”
ON/ON/OFF Indicates one of the
internal power supplies
is out of range.
Adjust the input power
supply voltage to
within range for the
sensor configuration.
Replace the main
PCBA.
5 “Internal Circuit Fault” ON/ON/OFF Indicates a hardware
failure on the main
PCBA.
Replace the main
PCBA.
33 “Lamp Fault” ON/ON/OFF Indicates the sensors
lamp is not operating
properly. (XIR PLUS
sensors only)
Replace the sensor.
15 “Life and Health Fault” ON/ON/OFF Indicates the sensor is
at the end of life.
Recalibrate the sensor
to get additional life. If
error does not clear
after recalibration,
replace the sensor.
36 “Low Signal Failure” ON/ON/OFF This indicates the
sensors output is low.
Clean the optics on the
sensor or replace the
sensor.
1 “Supply Voltage Fault” ON/ON/OFF The input power
supply is out of the
operating range. It may
be too low or too high.
Check the input power
supply is within range
for the sensor
configuration.
17 “Negative Drift” ON/ON/OFF This indicates the
sensor is reading
downscale.
Recalibrate the sensor.
26 “Negative Supply
Fault“
ON/ON/OFF Indicates the negative
power supply is out of
range.
Check the input power
supply. If this is within
range, then replace the
sensor.
N/A “Over Range” ON/ON/OFF An over scale gas
reading is present.
Verify the area is clear
of gas first then
recalibrate the sensor.
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