Instruction manual

Fyrite

INSIGHT

Plus Manual Troubleshooting
0024-9487 Rev 2 96
Section 6. Troubleshooting
6.1. Error and Warning Messages
Message Description
T-STK
Disconnected
The probe thermocouple is not connected to the analyzers
T-Stack connector. Plug the probe thermocouple plug into the
T-Stack connector at the bottom of the instrument.
Check Sensor
O
2
O
2
sensor output is low, but still usable. Sensor may need to be
replaced in the near future. The arrow on the O
2
Sensor Life
screen is in the “replace” segment. Refer to page 56.
Replace Sensor
O
2
O
2
sensor output is low and should be replaced. The arrow on
the O
2
Sensor Life screen is beyond the bar graph (typically 2
years for standard O
2
sensors and 3 years for long-life O
2
sensors). Refer to page 56.
Bad Sensor O
2
O
2
sensor output is too low and is not usable.
Low Sensor CO CO sensor output was low but still usable. Sensor may need to be
replaced in the near future.
Low Battery Battery voltage is low. Replace the batteries.
Applied Value
High/Low
An attempt was made to calibrate a sensor outside its range—
either above (High) or below (Low) the acceptable range.
Warmup Sensor
Error
• CO sensor was not zeroed at warmup because of high output.
Run instrument on fresh air then restart instrument to re-zero
sensor. If the message persists, the CO sensor may need to be
replaced.
• Stack or Air temperature sensors are measuring temperature
outside the range of -4° to 212° F at warmup. Make sure that
the Stack and Air thermocouples are sampling ambient room
air within the temperature range at warmup.
• The Fyrite

INSIGHT

Plus was turned on with the probe
sampling flue gas. Move the probe to fresh air and restart the
instrument.
• Messages will indicate which sensors are in error.