Sun Microsystems DGA 5000, Operator'S Manual, Page: 37 / 84

6.2.2 Gas Analyser Start-up
At start-up, the analyser will automatically perform the following functions
in sequence:
- Warm up.
- Zero-calibration.
- HC residue check.
While these functions are being performed, “pop-up” windows will be
automatically displayed showing the status of the unit. These windows
will automatically close when the function has been successfully
completed. They may be manually closed at any time to give full access
to the screen buttons.
Note:
A manually closed pop-up window can reappear if a new screen is
selected which requires a change in the Gas Analyser mode, e.g. a pop-
up screen can reappear if a leak check is selected but will not reappear
when moving to a different menu or set-up screen.
If the system is configured to require a Daily Leak Check (see 6.3 ), the
operator will be prompted to perform this during the initial start-up
sequence.
6.2.3 Warm up
The warm-up and stabilisation period depends ambient temperatures,
this warm-up period can last up to 9 minutes if ambient temperature is
0°C for the SGMII.
During this time:
- The pump will run continuously.
- The unit will check for condensation in the gas bench.
- The warm up pop-up screen will be displayed showing the
elapsed warm up time (unless manually closed).
Note:
The warm up period cannot be overridden by the operator.
At the end of the warm up period the unit will proceed to zero-calibration.
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