3 Operation
│
37
3.9
Concentration-dependent signal (structure)
In the
Structure
application, there is a concentration-dependent
signal for the measurement of hydrocarbons. This signal can be
used for audible evaluation of the measurement value.
The signal is activated when a specified concentration value is
exceeded.
−
As the concentration increases, the signal becomes louder.
−
If the concentration drops, the signal becomes quieter again.
The triggering concentration value is set at the
PPM threshold
(section 4.3.5).
When the
AL1
alarm threshold is exceeded, the concentra-
tion-dependent signal switches off.
Note:
The operating signal is not required during the concentration-de-
pendent signal.
When the concentration-dependent signal is triggered, the device
emits both a visual and an audible signal. The audible signal can
be switched off.
Switch off the audible signal
The device is in measuring mode. The concentration-depend-
ent signal was triggered.
● Press one of the arrow keys. The audible signal switches off.
The
Audible signal off
symbol appears in the status bar. The
operating signal is displayed.
Switch on the audible signal
The device is in measuring mode. The concentration-depend-
ent signal was triggered. The audible signal is switched off. The
status bar displays the
Audible signal off
symbol.
●
Press one of the arrow keys. The audible signal switches on
again. There is no operating signal.
