INFICON UL5000 Dry Helium Leak Detector - Manual (Page 43)

Operation of the UL5000
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5.4.2 Speaker Volume
On the left hand side two loud speaker symbols are shown, combined with the signs
+ and -. By pressing the corresponding softkeys (Soft Keys no. 2 and no. 3) the
volume can be adjusted for convenient loudness. In the bottom line of the display
another loud speaker symbol is shown, combined with a number. This number indi-
cates the level of the current loudness (ranges from 0 to 15).
See Chapter 6.4.3 Volume for information on loudness, alarms, and sound tracks.
5.4.3 Status Line in the Display
The status line at the bottom of the display informs about (reading from left to right):
STOP Danger
The hearing can be harmed by the audio alarm.
The accoustic output can exceed a level of 85dB(A).
Do only expose to the audio alarm for a short time or use ear protection.
Symbol of display Meaning Explanation
• Volume level See Chapter 5.4.2 Speaker Volume .
S1 • Trigger 1 If the trigger values are exceeded these
signs are inverted. (White on black
background.)
S2 • Trigger 2 see: Trigger 1
•• • Detected mass Number of dots indicates the mass
number
(4 dots = Helium, 2 dots = Hydrogen)
• Warning triangle See Chapter 8.1
VAC • Working mode VAC or SNIFF indicate which working
mode was selected (see Chapter
6.3
Mode ).
ULTRA • GROSS/FINE/
ULTRA Depending on the inlet pressure the
UL5000 may be in GROSS, FINE or
ULTRA, which is indicated here (see
Chapter
4.3 Working Modes ).
ZERO • ZERO Indicates if ZERO-function is active.
HYDRO•S • HYDRO•S Indicates if HYDRO•S function is
active. See Chapter
5.4.6 .
I•ZERO • I•ZERO Indicates if I•ZERO function is active.
STABLE • Signal stable Indicates if background signal is stable
(see Chapter
6.6.2.3 ).