Maintenance; Fidas24: Standby / Restart - ABB EasyLine Series Instructions For Installation Start-Up And Operation

Maintenance

Fidas24: Standby / Restart

Definitions
Putting Fidas24 into Standby mode
Resetting the Fidas24 to the measuring mode
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.
Operation Pump/Standby
Standby
The operating modes Standby and Standby & Purge can be
selected in the Fidas Standby menu:
Standby Standby mode is activated.
Standby
The standby mode with opening of the zero gas valve for
& Purge 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.
Operation Pump/Standby
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.
Maintenance
Fidas Standby
Fidas Standby
115
Fidas
Fidas