11
U2B
HBM 24.5.2000
4
Mechanical installation
4.1
Important precautions during installation
•
Handle the transducer carefully.
•
Do not overload the transducer.
•
During or directly after installation the transducer should be bridged with a
50 mm
2
stranded copper wire (a highly flexible earth cable (EEK) obtain-
able from the HBM delivery programme). The cable is screwed to the top
and bottom of the transducer. This prevents welding current from flowing
across the transducer and welding the force triggering point.
•
Where there is a risk that the transducer might burst and endanger per-
sonal safety if overloaded, additional safety measures need to be taken.
4.2
General installation guidelines
The forces must as far as possible act on the transducer in precisely the di-
rection of measurement. Torsional and bending moments, eccentric loadings
and lateral forces lead to measurement errors, and if the limit values are ex-
ceeded the transducer can be destroyed. Lateral forces include components
corresponding to process quantities that may be obliquely introduced. As an
aid to installation, HBM supplies jointed eyelets for series U2B transducers as
in Section 7. These aids to installation prevent the introduction of torsional
and bending moments as well as lateral and oblique loadings into the trans-
ducer.
SUNSTAR传感与控制 http://www.sensor-ic.com/ TEL:0755-83376549 FAX:0755-83376182 E-MAIL:[email protected]
SUNSTAR自动化 http://www.sensor-ic.com/ TEL: 0755-83376489 FAX:0755-83376182 E-MAIL:[email protected]
