17
U3
HBM 11.12.2000
7
Specifications (VDI/VDE2638)
Type
U3
Nominal force
F
nom
kN
0.5
1
2
5
10
20
50
100
Accuracy class
0.2
Nominal sensitivity
C
nom
mV/V
2
Relative sensitivity deviation
compressive force
d
c
%
t"
0.2
Relative tensile/compressive force
sensitivity difference
d
zd
%
t
2
t
1
Relative zero signal deviation
d
s.o
%
t
1
Hysteresis (0.2F
nom
to F
nom
)
u
%
t
0.2
Linearity deviation compressive
force
d
lin
%
t
0.2
Linearity deviation tensile force
d
lin
%
t
0.3
t
0.2
Effect of temperature on
sensitivity/10K
by reference to sensit.
TK
c
%
t
0.2
t
0.1
Effect of temperature on zero
signal/10K
by reference to sensitivity
TK
0
%
t
0.1
Effect of eccentricity at 1mm
d
E
%
t"
0.1
Effect of transverse forces
Transverse force 10% F
nom
1)
d
Q
%
t"
0.1
t"
0.2
Creep over 30 min
d
crf+E
%
t"
0.1
Input resistance
R
e
Ω
u
345
Output resistance
R
a
Ω
300–400
Isolation resistance
R
is
Ω
u
2 x 10
9
Reference excitation voltage
U
ref
V
5
Operating range of the excit. volt.
B
U.GT
V
0.5 bis 12
Nominal temperature range
B
t.nom
o
C
–10 bis +70
Operating temperature range
B
t.G
o
C
–30 bis +85
Storage temperature range
B
t.S
o
C
–50 bis +85
Reference temperature
t
ref
o
C
+23
Maximum operating force
(F
G
)
%
130
150
130
Limit force
(F
L
)
%
130
150
130
Breaking force
(F
B
)
%
u
300
250
Static lateral limit force
1)
(F
Q
)
%
100
80
50
Permissible eccentricity
e
G
mm
25
40
32
20
Nominal displacement
S
nom
mm
t
0.08
t
0.1
Fundamental resonance
frequency
f
G
kHz
1.3
2.1 3.1 5.2 7.1 3.7 5.7
7.25
Rel. permissible vibrational stress
F
rb
%
100
160
Weight
kg
app. 0.6
app. 2.5
Degree of protection to DIN EN60529
IP65
Cable length, six–wire connection
m
3
1)
by reference to a force introduction point on the force–introduction surface
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