Maximum Permissible Load On Load Receptor - Sartorius WZA N Series Installation Instructions Manual

Maximum Permissible Load on Load Receptor:

Model Max. torque
M , M
x
WZA224-N
WZA224-ND
WZA224-NC 2 Nm
WZA523-N
WZA523-NC 2.5 Nm
WZA1203-N
WZA1203-NC 4 Nm
WZA8202-N
WZA8202-NC 8 Nm
WZA25-NC 0.1 Nm
Higher loads may result in damage to the weigh cell.
Example:
Weigh cell with hook projecting out to the front.
Torque M is the sum of the torque from the force of the weight
y
W , the torque of any excess weight being exerted W
Load
the torque created by the intrinsic weight W
weight.
Example:
How heavy may the maximum off-center overload force
WZA224-N at a load of M = 100 g and a hook arm length L
Load
of 100 mm and an intrinsic weight M
M = M + 9.81 m/s 2 + L
Load Load
M = 0.098 Nm
Load
M = M + 9.81 m/s 2 + L / 2
Hook Hook
M = 0.029 Nm
Load
M = F + L
Ex Ex
M = M + M + M
y Load Hook Ex
W = (M – M – M
Ex corner Load Hook
W = 18.7 N
Ex
Screwing torque
, M
y z
1 Nm
1 Nm
2 Nm
4 Nm
0.5 Nm
and
Ex
holding the
Hook
for a
over
= 60 g be?
Hook
) / L
Max. force opposite
to direction of load (-F
3 N
6 N
15 N
100 N
2 N
However, even very small forces can trigger the overload
protection mechanism.
In general, load receptors should be constructed to be rigid to
bending and twisting. We recommend testing to avoid unwanted
feedback effects in the control loop. You should also take into
account the effects of drafts and observe all instructions for
analytical weighing.
Max. forces
) F , F , F
z x y z
20 N
25 N
40 N
80 N
F 200 N
z
2 N
9