Operation
6.3 Measuring menu
SITRANS DA400 for material flow monitoring with protection against explosion
Operating Instructions, 09/2007, A5E00841152-01
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6.3.4
Acoustic channels
6.3.4.1
Measuring mode
Introduction
The current measured values from the signal processing are displayed in the measuring
mode.
Condition
The measurement channel must be in measuring mode. The measurement channel is in
measuring mode if the parameter P.1 to P.4 associated with the measurement channel is set
to "on L", "on H", "on_L" or "on_H".
Elements of the digital display in measuring mode
Once you have configured the acoustic channel, the digital display shows the following, for
example, depending on the setting selected:
Figure 6-5
Digital display measuring mode, acoustic channel
35.0
Measured value in dB; flashes if main alarm received
1/So1
Set measured channel 1
45.0
Limit value of the main alarm in dB set in measurement channel 1
Acknowledging alarms
Alarms are acknowledged as follows:
Press the <ACK> button for 5 seconds to reset the alarm. "rES" flashes in the digital display
for 5 seconds. The alarm is then reset.
Note
If no alarm was set, "noAL" is shown to the left in the middle section of the digital display.
Note
Condition
Alarms can only be acknowledged if the parameter value is set to "P.14/ACK" = "¬St.Ac" or
"St.Ac".
