Usual alarm types and response:

You need to log on gln1, see LN computer. Go to directory ~/scripts and run ./run-gln-ui.sh which gives the fill system interface. Type help for getting overview on commands. Get familiar with the commands mon, clr, ton, fill, coff, con, abort, load, quit

In some cases you need to edit the fill-system configuration file ~/scripts/gln.fig for setting new temperature thresholds. In order to apply new gln.fig configuration you need to say 'load' in run-gln-ui.sh and MUST RE-ENABLE the filling! You can't say 'load' while the system is filling. Sometimes you also need to exit and start the UI again before it allows you to execute 'load'.

IN WORST CASE: You can always hand-fill a quad in any mounting position.

Long fill

• What happened: The LN outlet sensor hasn't triggered.
• Run run-gln-ui.sh
• Say 'clr' to clear the alarm
• Check 'Fill Temperature Plot' if this sensor got cold
• If this happens regularly you may want to increase its trigger threshold in gln.fig (F1 directive, beginning in gln.fig)

Detector warm

• You get a detector high temperature alarm.
• Check 'all zoom cold (pdf)' plot.
• T-plot for detector is just straight: Go to Detector warm I (spike)
• T-plot for detector shows exp-like increase: Go to Detector warm II

Detector warm I (spike)

• What happened: T read spiked and caused T high alarm
• Run run-gln-ui.sh
• Say 'clr' to clear alarm
• You need to re-enable filling of this detector (ton #det)
• If this happens regularly you may want to increase the T high threshold in gln.fig (F3 directive, end in gln.fig)

Detector warm II

• What happened: Detector runs out of LN and really warms up
• IMPORTANT: detector T increased by few Kelvin only, see plot from real-life example (below).
• Run run-gln-ui.sh
• Say 'fill det#', confirm that you really want to fill it.
• Say 'coff det#', this stops T checking (and alarming and disabling) of this detector
• Watch the fill, check for reasonable fill time (not that LN out is triggering much too early)
• After fill, within ~30 min the temperature should recover (see example plot below).
• If T is good say 'con #det', so T checking is enabled again.
• If it is deep in the night: You can temporary increase T high threshold (F3 directive)
• NEVER LEAVE DETECTOR WITH T CHECKED TURNED OFF

Here a real-life example. After alarm got received you get following T-plot: warm-up-example.pdf. Actually after alarm you get it up to channel ~1100 and see T is going up. Therefore it is a real alarm. Next you do is logging on the gln system, run the UI, and say 'fill 6 now'. Then clr and directly coff 6 (as a fill enables T checking by default). Later you see how T is recovering. dirk cell:517 203 9419