Frequently Asked Questions - Ecom J2KN pro Operation Manual

18. Frequently Asked Questions

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 "O 2 sensor 0 mV"
The instrument shows the error
message "T-Gas" or "T-Air"
The instrument shows wrong or
inaccurately CO 2 values
Can I change the printout?
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, SO 2 , NO 2 ) 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 O 2
sensor is independent of the operating hours
and amounts to approximately 2 years.
The following sensors are exchangeable:
- O 2 sensor
- CO sensor (pre-calibrated available)
- NO sensor (pre-calibrated available)
- NO2 sensor (pre-calibrated available)
- SO 2 sensor (pre-calibrated available)
The O2 sensor must be changed.
Possible reasons could be:
- Cable is broken (at the plug)
- T-Air sensor error – check all connections
- T-Gas sensor error – check all connections
- Thermocouple is defective
Note: The error messages can be ignored by
pressing . Calculations that rely on these
temperatures will not display.
Possible reasons could be:
- O 2 is defective
(CO 2 values are calculated from O 2 value)
- Pump is not working correctly
- Air leakage in the gas path
- Peltier cooler is clogged
Yes, go to Adjustments -> Internal -> Printout
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