Oxygen Monitor SGM7 8 Operation
HB_SGM7_eng.docx 22
8.1.4 Status and error messages
During the measuring the functions of the measuring cell are
monitored. In case of faults and/or errors messages are displayed
relay output is activated simultaneously.
Self-check of
the SGM7
Chart 4: Status / error messages
Status
Display Remark
0 OK
1 LIMIT Alarm relay active
2 RANGE <<< Alarm relay inactive!
3 RANGE >>>
4 FLOW <<< < 5 l/h
5 FLOW >>> >10 l/h
6
7
8
9 WARM UP Cell temperature too low
(wait, after approx. 15
minutes 750 °C is reached)
10 CELL TEMP.<<< Set temp. -10° and > 30 min
11 ERROR
THERMOCOP.
Thermocouple broken
12
13
14 SELF TEST FAILED
Status 1...8: warnings
Status 9...14: faults, alarm relay active and analog output (current signal)
zero
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