ENGLISH
Pag. 20
Colour
Meaning
Yellow blinking
Warmup
Green fixed
Normal status
Yellow
Fault
Red
Alarm
calibration kit.
4.3 Use
The detector works autonomously and automatically. Once adequately connected, no fur-
ther operations are required.
The frontal LEDs indicate the detector’s working condition.
Table 2) LED colours and their meaning
4.4 Maintenance
Sensitron racommends a check of permance through a test gas with the proper calibration
kit. If the gas detector is equipped with an electrochemical cell or a pellistor sensor, the
check must be biannual. With an infrared sensor the performance checking must be annual.
If required, during these tests perform the Zero and Span calibration. Moreover, Sensitron
recommends to perform the same tests when the detector reports a gas reading above an
alarm threshold.
Test results should be recorded into a suitable book to be shown to the Authority in case of
inspection.
For further information, refer to the kit calibration manual MT894.
Summary of Contents for SMART3-R Series
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