EL3000 CONTINUOUS GAS ANALYZERS | OI/EL3000-EN REV. D 189
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 opened in standby mode with purging
of the detector.
• Fail-safe mode:
Fail-safe means: heater off, combustion gas valve closed,
instrument air valve closed, housing purging on, zero gas
valve open.
Set Fidas24 in Standby mode
‘ Operation / Pump / Standby / Fidas Standby
Fidas Standby’
In the ‘Fidas Standby’ menu, you can choose between the
‘Standby & Purge’ and’Standby’ operating modes:
Standby mode is activated.
Standby mode with opening of the zero gas valve for
purging the detector is activated (only when executing
with test gas connection).
In standby mode, there is a 'Function check’ status signal (see
Status Signals on page 166) and the status message no. 411
'Fidas24 Standby mode' (see Possible status messages on
page 168) is issued; the measured values are invalid.
Note
If the Fidas24 is in fail-safe mode (see Fidas24 in fail-safe status
on page 175), it cannot be set to standby mode.
Setting Fidas24 back to measurement mode
‘ Operation / Pump / Standby / Fidas Standby
Fidas Restart’
The menu ‘Fidas Restart’ shows the most important operating
parameters of the Fidas24:
-Air
-Gas
pressure
The restart is initiated by pressing OK. After initiating the
restart, you can leave the menu by selecting ; the restart
sequence will continue to be executed. The restart sequence can,
however, also be observed further in the menu.
Note
If the Fidas24 is in fail-safe mode (see Fidas24 in fail-safe status
on page 175), it cannot be set to measurement mode.