Faq - Ecom EN2 Operating Instructions Manual

16. FAQ

Where do I find important instru-
ment information?
How long is the life span of the
sensors?
Which sensors can I exchange?
The instrument shows the error
message „O2 sensor 0 mV"!
The instrument shows the mes-
sage „Check required"!
The instrument shows the error
message „T-Gas" or „T-Air"!
The instrument shows wrong or
inaccurately CO values!
2
Page 54
In the menu „Control" all important instrument infor-
mations are shown (e.g. battery voltage, sensor
values, unit number, next service date, operation
hours etc.). With the arrow keys stands you can
switch to the second page.
The life span depends on the operating hours and
the instrument equipment. The life span of the toxic
sensors (CO, NO, SO
concentrations and a not sufficient purging. The life
span for these sensors amounts to on the average
between 4 and 6 years. The life span of the O
sor is independent of the operating hours and
amounts to approx. 2 years.
The following sensors are exchangeable:
- O sensor
2
- CO sensor (precalibrated)
- NO sensor (precalibrated)
- SO sensor (precalibrated / only together with
2
CO sensor
The sensor must be renewed.
This message appears automatically every 12
months or after 250 operating hours. Note: This is a
recommendation to let check the instrument. The
instrument is however still ready for use.
Possible reasons could be:
- Cable is broken (at the plug)
- T-Air sensor is broken
- Thermocouple is broken
- Cable is defective
Note: The error messages can be ignored at the EN2
by pressing „Enter". Calculations that depends on
these temperatures are not implemented.
Possible reasons could be:
- O is defective (CO
2
the O values)
2
- Pump is not working correctly
- Leakage in the gas way
- condensate trap / gas cooler is clogged
, NO ) is affected by high gas
2 2
values are calculated from
2
ecom-EN2
sen-
2