Burkert SE 56 Manuel D'instructions page 33

(POS. 6.6-6.7) Function and range of current output n.1-2
To choose the function and the range of current output N.1-2. The current output N.1 is optional and
is mounted on the main board. There are three fields to modify this function:
Scale zero: 4 or 0 mA ; Full scale: 20 or 22 mA
Field: + = positive, - = negative, ± = both, -0+ = central zero scale
The values corresponding to the scale points are shown in the following chart:
POSSIBLE FIELD
OutmA = 0 ÷ 20 +
OutmA = 0 ÷ 22 +
OutmA = 4 ÷ 20 +
* OutmA = 4 ÷ 22 +
OutmA = 0 ÷ 20 -
OutmA = 0 ÷ 22 -
OutmA = 4 ÷ 20 -
OutmA = 4 ÷ 22 -
OutmA = 0 ÷ 20 ±
OutmA = 0 ÷ 22 ±
OutmA = 4 ÷ 20 ±
OutmA = 4 ÷ 22 ±
OutmA = 0 ÷ 20 –0+
OutmA = 0 ÷ 22 –0+
** OutmA = 4 ÷ 20 –0+
OutmA = 4 ÷ 22 –0+
In hardware alarm conditions "HW ALARM" (interrupted coils, empty pipe, measuring error) the current
value is programmed by the function "mA VALL. FAULT" (pos. 4.7) and it is expressed as percentage
of a fixed current range, where: 0% = 0 mA and 110% = 22 mA.
* Example 1: out 4÷22 +
-110% F.S.
** Example 2: out 4÷20 –0+
-110% F.S.
CURRENT VALUES IN mA ASSOCIATE TO THE % VALUE OF FULL SCALE
REVERSE FLOW VALUE
≤ -110%
0
0
4
4
20
22
20
22
20
22
20
22
0
0
4
4
I (mA)
22 mA
20 mA
4 mA
-100% F.S.
zero
I (mA)
20 mA
12 mA
4 mA
-100% F.S.
zero
ZERO
-100% 0%
0 0
0 0
4 4
4 4
20 0
20 0
20 4
20 4
20 0
20 0
20 4
20 4
0 10
1 11
4 12
4.8 12.8
+100% F.S. +110% F.S.
+100% F.S. +110% F.S.
32
SE 56
[OUT.mA1-2=X÷XX±]
DIRECT FLOW VALUE
+100% ≥+110%
20 20
20 22
20 20
20 22
0 0
0 0
4 4
4 4
20 20
20 22
20 20
20 22
20 20
21 22
20 20
20.8 22