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Betriebsanleitung/Operating manual
F1301/F13C1
Variante
kN
ØA
B
-0,2
10
50
20
30
90
50
100
115
7
Brief description SIL-3
Amplifier-Electronics 4...20mA or 0...10V for SIL-3 applications with 2-
channel PC control (Certified by TÜV Süddeutschland, Germany)
Force Transducers, which are based on strain gauges, are working with
four variable resistors (R1...R4) connected to a Wheatstone Bridge.
Caused by deformation of the body the respective opposite resistors are
lengthened or compressed in the same way. This results in an
unbalanced bridge and a diagonal voltage U
This well proven design has been amended by an additional resistor R7
in order to monitor the condition of the amplifier unit and signal path.
This resistor is connected as a shunt to resistor R5 by a relay contact (a)
as soon as an excitation voltage U
Ub
The connection of resistor R7 will always result in a defined unbalancing
of the zero point (diagonal voltage) of the Wheatstone Bridge.
26
D
ØG
27
8,5
42
48
14,5
70
60
14,5
90
R1
R2
Fig. 2 proncipal circuit
BD_BE 982
Maße (mm)
H
J
R
4xM5
13
60
4xM10
21
100
4xM12
24
160
0
appears at relay A.
r
A
R3
R7
R5
R6
R4
ØS
T
ØU
-0,1
43
10
17
72
12,5
25
91,5
25
32
.
Ur
a
U0
www.tecsis.de
L
M
-0,1
19
4
12
13
12
3
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