Where do I find important in-
strument information?
How long is the life span of the
sensors?
Which sensors can I exchange?
The instrument shows the error
message “O2sensor 0 mV“
The instrument shows the error
message “T-Gas“ or “T-Air“
The instrument shows wrong or
inaccurately CO2values
In the Control screen, all important instru-
ment information is shown (e.g. battery volt-
age, sensor values, serial number, next ser-
vice date, operation hours, etc.).
The life span depends on the operating hours
and the instrument equipment. The life span
of the toxic sensors (CO, NO, SO2, NO2) is
affected by high gas concentrations or insuf-
ficient purging. The life span for these sensors
is on average 3 years. The life span of the O2
sensor is independent of the operating hours
and amounts to approximately 2 years.
The following sensors are exchangeable:
- O2sensor
- CO sensor (pre-calibrated available)
- NO sensor (pre-calibrated available)
- NO2 sensor (pre-calibrated available)
The O2 sensor must be changed.
Possible reasons could be:
- Cable is broken (at the plug)
- T-Air sensor –check connection
- T-Gas sensor –check all connections
- Thermocouple is defective
Possible reasons could be:
- Fuel selection is incorrect
- O2is defective
(CO2values are calculated from O2value and
carbon content of the fuel)
- Pump is not working correctly
- Air leakage in the gas path
- Ambient gas cooler is clogged
