Siemens SITRANS DA400 Operating Instructions Manual page 32

Operation
6.3 Measuring menu
• 3/So3
• 4/So4
Elements of the digital display
The figure below shows you which elements can appear in the digital display.
(1)
Figure 6-3
(1)
(2)
(3)
(4)
Summation alarm
The summation alarm is the OR of all received main alarms. There is one main alarm per
channel. If the main alarm is exceeded, the measured value display flashes.
Sensor fault
If the acoustic channel has a fault, the following appears in the digital display:
(1)
Figure 6-4
(1)
(2)
(3)
(4)
6-4
(2) (3)
(4)
(5)
Measuring menu digital display, acoustic channel
The measurement value blinks when a
major alarm is received (starting with
software version 1.03).
Pre-alarm not received
Pre-alarm received
Main alarm not received
(2)
Measuring menu digital display, acoustic channel fault
Symbol for sensor fault
Summation alarm, received from other acoustic channels
Channel number
The associated value of a major alarm; indicated starting with software version 1.03.
(6)
(7)
(8)
(5)
(6)
(7)
(8)
(3)
(8)
SITRANS DA400 with protection against explosion
Operating Instructions, 02/2006, A5E00684661-01
Main alarm received
Summation alarm received
Channel number
Associated main alarm value