Knick Stratos Evo A402, User Manual

Page: 156 / 196

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In very rare cases it seems that the analyzer cannot be
operated because it remains in “Firmware Update” mode
– indicated by the --FIRMW UPDATE-- message.
This occurs when the power is disrupted while the pro-
cess variable is loaded.
Follow the instructions below to fix the error.
Action Key/Display Remark
Device start If the power supply is disrupted
while the process variable is loaded
(e.g., during initial start-up or when
changing the process variable), the
following can occur:
Reconnecting
the power
supply After the power supply has been
reconnected, the analyzer starts and
then remains in --FIRMW UPDATE--
mode. If this occurs, disconnect the
power supply.
Restoring the
factory settings
Press the

keys simultaneously
and hold them depressed while the
analyzer is reconnected to the power
supply.
Device start Release the keys when the display
shows LOADING BASE. The analyzer
will restart with the BASE software
when 100 % is reached.
Operating Error!
Power Disruption while Loading the Process Variable