Error and warning messages, Hints 94, 8error and warning messages – INFICON UL1000 Helium leak detector User Manual
Page 94: 1 hints
94
Error And Warning Messages
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8
Error And Warning Messages
T
he UL1000 and UL1000 Fab is equipped with a comprehensive self-diagnostic
facilities. If an error or warning condition is detected it is indicated via the LC display
to the operator.
An audio signal is generated when an error or warning occurs. The frequency
changes every 400 ms from 500 Hz to 1200 Hz and vice versa so that the signal
stands out well from ambient noises normally encountered.
Error and warning messages are logged and can also be displayed at a later time
through the menu information (
8.1
Hints
Warning Messages
Warnings will be indicated
•
when the UL1000 and UL1000 Fab detects an abnormal condition or
•
when it wants to remind the operator of something (e.g. a request for calibration
or a service timer has expired).
The UL1000 and UL1000 Fab will indicate a message on the LC display and will
remain in the Stand-by or the measurement mode.
Warning messages will remain on the LC display until the warning has been
acknowledged by pressing „OK“ (Key no. 8). After that the UL1000 and UL1000 Fab
can be used again (possibly with some restrictions). As long as a warning status
exists the status line shows a warning triangle (See Chapter
).
The warning messages can be displayed in STANDBY by pressing the button
(shows up when warning message occured).
Error Messages
Errors are events which force the UL1000 and UL1000 Fab to interrupt its
measurement operations. In this case the UL1000 and UL1000 Fab closes all valves
(Stand-by mode).
Error messages remain on the LC display until the message has been acknowledged
by pressing „Restart“ (key no. 8). After that, the UL1000 and UL1000 Fab restarts
with a new run-up procedure. In some cases it may be helpful to check some settings
or measured values before the UL1000 and UL1000 Fab restarts. Therefore it is also
possible to press „Menu“ (key no. 4 or Menu key) to enter the UL1000 and UL1000
Fab menu. After leaving the menu the same error message will be displayed again.
Notice: Under extreme conditions (unknown software errors, excessively high
electromagnetic interference levels) the built-in „watchdog“ circuit will
prevent uncontrolled operation of the UL1000 and UL1000 Fab. This
watchdog will cause the UL1000 and UL1000 Fab to restart. After having
done so, the instrument will be running in the Stand-by mode. No error
message will be output.