Maintenance 115
Maintenance
Fidas24: Standby / Restart
Definitions
Standby mode: heater on, combustion gas valve closed, combustion air
valve closed, instrument air valve closed, housing purging on, zero gas
valve open for standby with detector purging.
Fail-safe status: heater off, combustion gas valve closed, instrument air
valve closed, housing purging on, zero gas valve open.
Putting Fidas24 into Standby mode
Operation Pump/Standby Fidas Standby Fidas
Standby
The operating modes
Standby
and
Standby & Purge
can be
selected in the
Fidas Standby
menu:
Standby
Standby mode is activated.
Standby
& Purge
The standby mode with opening of the zero gas valve for
purging the detector is activated (only in the version with
test gas connection).
The status signal "Maintenance Mode" is active in the standby mode, and
the status message (see page 122) no. 411 "Fidas24 Standby Mode" is
output; the measured values are invalid.
NOTE
If the Fidas24 is in the fail-safe status (see page 129), it cannot be set to
the standby mode.
Resetting the Fidas24 to the measuring mode
Operation Pump/Standby Fidas Standby Fidas
Restart
The most important operating parameters of the Fidas24 are displayed in
the
Fidas Restart
menu:
F-D1
Flame temperature
C-Air
Combustion air pressure
C-Gas
Combustion gas pressure
The restart is initiated by pressing
OK
. After the initiation of the restart,
the menu can be quit with ; the restart sequence is continued. However.
the change of the operating parameters can also continue to be observed
in the menu.
NOTE
If the Fidas24 is in the fail-safe status (see page 129), it cannot be reset
to the measuring mode.
