Siemens SIPROCESS GA700 Quick Start Manual page 52

Commissioning
7.6 [2.03] Settings > Measuring ranges
Measuring range type 1 (mr i < mr (i+1))
The full-scale value of measuring range
following measuring range
Um
O
Um
U
So
H
FSV
When the high switchover point of a measuring range is exceeded, there will be a switch to
the next-higher measuring range.
If the measured value is lower than the low switchover point of the next-lower measuring
range, the device switches to the lower measuring range.
Measuring range type 2 (mr i ≥ mr (i+1))
The full-scale value of measuring range
of the following measuring range
of-scale values get smaller. The following switchover points are used:
Um
O
Um
U
So
H
FSV
When the high switchover point is violated, there will be a switch to the next-higher
measuring range.
If the measured value violates the low switchover point of the next-lower measuring range,
the device switches to the lower measuring range.
52
(i+1)
mbe - 0,1 * ( mbe - mba )
mbe - 0,2 * ( mbe - mba )
High switchover point (= 90% of span)
Full-scale value
mba
mba 0,1 * ( mbe - mba )
+
High switchover point (= 90% of span)
Full-scale value
must be less than the full-scale value of the
i
. The following switchover points are used:
So
L
SSV
must be greater than or equal to the full-scale value
i
. Because the spans get bigger, the corresponding start-
(i+1)
So
L
SSV
Compact Operating Instructions, 01/2013, A5E31805656-01
Low switchover point (= 80% of span)
Start-of-scale value
Low switchover point (= 80% of span)
Start-of-scale value
Quick Start