This is an old revision of the document!
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.
In some cases you need to edit the fill-system configuration file ~/gln/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!
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 Duration 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
- 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 example plot.
- Run run-gln-ui.sh
- Say 'fill det#', confirm that you 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).
- 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 T CHECK OFF
