www.gassense.eu
G
as Sensor
GS-220.P
CHAPTER
5
OPERATION
5.1. Operating modes
This chapter shows operating modes of gas sensor GS-220, their activation, as well
as indications and output signals, which are generated in each one.
5.1.1. Warm up mode
This is the mode that starts right after the powering of the sensor. It is used for
stabilizing measurements of the diagram as well as initial warming of the gas sensitive
element (gas sensitive element must be warm in order to measure right). In this mode gas
sensor does not measure current gas concentration.
Characteristics and output levels of warm up mode:
Characteristics
Values
LED indication
•
DANGER – does not light
•
ALARM – does not light
•
FAULT – lights
Digital outputs
•
DANGER ( terminal
) – digital „0“
•
ALARM ( terminal
) – digital „0“
Other
Time: 70 seconds
Table 5.1. – characteristics of warm up mode
5.1.2. Normal operation mode
This is the mode where the measured gas concentration value is between zero and
DANGER levels.
Characteristics and output levels of normal operation mode:
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