www.wobit.com.pl
User manual -ADT42 – 23.06.2015 – v.1.3
page 14
5.
Complementary information
5.1
Force sensor types
WObit company has a broad offer of force sensors in range from single Newton’s up to hundreds of
kilo Newton’s. Depends on assembly and way of measuring force (tension, compression) are
available sensors with different shapes (table below).
Beam
To measure tension force. Range of measured force 0..350 N.
Example of models: K200, K300
S-beam
To measure large tension force. Range of measured force 0..75 kN.
Example of models: K1401, K1501, K1505, K1506, K1600
Round
To measure large and small tension force. Range of measured
force 0..100 kN.
Example of models: KB52, KB82, KMB19, KMB25, KMB31, KMM30,
KMM50, KMM60,
Round with
shaft
To measure large and small tension and compression force. Range
of measured force 0..50 kN.
Example of models: KMM20, KMM40
Cylindrical
To measure large tension and compression force. Range of
measured force 0..200 kN.
Example of models: K1101
5.2
Sensor measuring range
Rated load
for sensor it is a size of force, which specifies
top value of measuring range (given value for sensor as
bridge range
-
TRA
in N).
Applied load
is the biggest force, which have
unambiguous connection between force and output
signal (signal value is changing linear in relation to force).
It can count max. M
150%
of sensor range (bridge).
Cut-off load
is the biggest force, which can take each
sensor without it damage. It can count max.
200%
of
sensor range.
Destroying load
means force applied to sensor Shaft,
which exceeding can cause to mechanical damage of the
sensor.
Constant of e.g. KMM60 sensor is 1,5mV/V
2%. Error of the sensor is specified by following values:
tolerance of linearity 0,2% of measuring range, zero tolerance 2% of measuring range, hysteresis
0,2% of range and creep measured in time of 30 minutes 0,1%. Temperature factor of zero point
Destroying load
>200% F
Cut-off load
+200% F
Applied load
+150% F
Rated load
+100% F
Me
asurin
g ra
n
ge
Zero load
0 [N]
Rated load
-100% F
Applied load
-150% F
Cut-off load
-200% F
Destroying load
<200% F
