HBM Z4A, Mounting Instructions, Page: 34 / 76

34
Z4A
HBM A0697-7.0 de/en/fr
11.2 Housing
The enclosure with the integrated system of measuring springs is hermetically
sealed at the top and at the bottom by metal membranes, so that moisture
cannot damage the sensitive application.
1 = Measuring body
2 = Sealing membranes
3 = SG
4 = Threaded pin
5 = Cable box
6 = Tapped hole
4
2
3
1
6
2
5
Fig.3.2 Z4A (20 kN...500 kN)
11.3 Disturbance variables
Torsion, bending and transverse load are disturbance variables and are
therefore to be avoided. If necessary they can be remedied with HBM
mounting accessories (section 13.3 ).
The effects of temperature on the zero signal (S/G bridge and housing) and
on the sensitivity are compensated.
Changes in the ambient pressure act as additive (subtractive) forces. These
are scarcely of importance when compared with large nominal loads.