Siemens MKB-1 Operating Instructions Manual page 18

Ground Fault Indicator
Siemens Building Technologies
Fire Safety
When a Ground Fault is detected on the system, a flashing "GF" icon will appear in
the last line of the screen, indicating that the condition exists. When the condition is
corrected, the flashing icon will then disappear.
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TBL CUSTOM MESSAGE
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10 ALR=000, SUP=000, TBL=001, SEC=000
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SIEMENS BUILDING TECHNOLOGIES
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14 001 Ground Fault Plus
15 11:59:59 Dec 31, 02
Example shown is Canadian Display
Figure 9
System Showing GF (Ground Fault) on Last Line of Display With More Info Key Pressed
40 Characters
IN
12:22:22 Dec 31, 02
(001 / 001)
GF
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Ground Fault
Indicator
P/N 315-048692-2