160
K600000000SE 030804 011018
S1 S2 S3 S4 S5 S6
Flex-Sensor O2 LL
Cod. AACSE43
Flex-Sensor CO+H2
Cod. AACSE12
Flex-Sensor CO+H2 low range
Cod. AACSE24
Flex-Sensor CO 100.000 ppm
Cod. AACSE17
Flex-Sensor CO 20.000 ppm
Cod. AACSE18
Flex-Sensor NO
Cod. AACSE10
Flex-Sensor NO low range
Cod. AACSE25
Flex-Sensor NO2
Cod. AACSE14
Flex-Sensor NO2 low range
Cod. AACSE26
Flex-Sensor SO2
Cod. AACSE13
Flex-Sensor SO2 low range
Cod. AACSE28
Flex-Sensor CxHy
0-5.00% vol. referred to CH4
Cod. AACSE39
Flex-Sensor CO2
Cod. AACSE41
Flex-Sensor CO2
Cod. AACSE47
Flex-Sensor H2S
Cod. AACSE35
Flex-Sensor NH3
Cod. AACSE56
15.2 Sensor types and relevant positioning
CODE
POSITION
15.3 Gas sensors life
The gas sensors used in this instrument are electrochemical: thus, when the relative gas is detected, a chemical
reaction takes place inside them that generates an electrical current.
The electrical current acquired by the instrument is then converted into the corresponding gas concentration.
Sensor life is strongly related to the consumption of the reagents within.
Sensor characteristics diminish as the reagents are consumed and when these have been used up completely
the sensor must be replaced. The sensors must be recalibrated on a regular basis to assure measuring accuracy:
recalibration can only be performed by a qualified SEITRON service centre. Table 15.4 illustrates the
characteristics inherent to each sensor.
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