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15.2 Sensor types and relevant positioning
CODE
Flex-Sensor O
Cod. AACSE15R
Flex-Sensor CO+H
Cod. AACSE12
Flex-Sensor CO+H
low range
2
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 NO
Cod. AACSE14
Flex-Sensor NO
low range
2
Cod. AACSE26
Flex-Sensor SO
Cod. AACSE13
Flex-Sensor SO
1.000 ppm
2
Cod. AACSE77
Flex-Sensor SO
low range
2
Cod. AACSE28
Flex-Sensor CxHy
0-5.00% vol. referred to CH4
Cod. AACSE39
Flex-Sensor CO
Cod. AACSE41
Flex-Sensor CO
Cod. AACSE47
Flex-Sensor H
Cod. AACSE35
Flex-Sensor NH
Cod. AACSE56
Flex-Sensor Dual CO - H
Cod. AACSE79
Flex-Sensor H
Cod. AACSE78
Flex-Sensor CH
Cod. AACSE73
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 center.
characteristics inherent to each sensor.
POSITION
S1
2
2
2
2
2
2
S
2
3
2
2
4
S2
S3
160
S4
S5
Table 15.4
illustrates the
K400000000SE 041891 010823
S6
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