56
11
Warnings
The following warnings are potentially displayed
in the status line
of the LCD screen of the
FireStingGO2
(see chapter 3.5)
. If the
FireStingGO2
is operated with the
FireStingGO2 Manager
software, the warnings are also shown in the Live Graph window
(chapter 10.3.1).
11.1
Oxygen Sensor Warnings
A reasonable oxygen sensor shows signal intensities well above 50
(typically 50-500)
1
. If the signal intensity drops below 50, the
warning Low Signal is shown, indicating that the sensor might get
degraded soon. But
for contactless sensors it might indicate that
the distance between the optical fiber and the sensor spot is too
large. In order to increase the signal intensity, advanced users
might increase the intensity of the excitation light (red light flashes
coming out of the oxygen port) by changing the second letter of
the Sensor Code (details in 13.4).
Low Signal: Measurements are still possible with potentially
decreased performance.
If no oxygen sensor is connected or if the sensor is broken or
damaged, the warning No Signal will be shown in the status line /
Live Display.
No Signal: Please check whether the sensor cable is connected or
replace the sensor, the tip might be broken / bleached.
The Warning
Too High indicates that there might be too much
ambient light on the sensor tip or on the sensor spot. Or there
1
Note: Exceptions are trace oxygen sensors. During the air calibration at 21% O2, these sensors show a
very low signal intensity (as low as 10). But the signal intensity will strongly increase when a trace oxygen
sensor is applied within its specified range of 0-10% O2.
