Burkert Type 8791 - Manual (Page 55)

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Start-up
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Start X.TUNE by pressing key 1 for 5 sec 12) .
While X.TUNE is running, LED 1 flashes very quickly (green).
When the automatic adjustment has completed, LED 1 flashes slowly (green) 13) .
The changes are automatically transferred to the memory (EEPROM) only when the X.TUNE function is successful.
If LED 3 (red) is lit after the X.TUNE function started, the X.TUNE function was ended due to a fault.
• Check possible faults
(see “Table 13: Error messages while the X.TUNE function is running”).
• Then repeat the X.TUNE function.
12)
The X.TUNE can also be started via communications software.
13)
If a fault occurs, LED 3 is lit red.
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Type 8791