HBK HBM U2B Montageanleitung Seite 7

Additional safety precautions
Force transducers cannot (as passive transducers or as sensors with integrated ampli­
fiers) implement any (safety-relevant) cutoffs. This requires additional components and
design measures, for which the installer and operator of the plant is responsible.
In cases where a breakage or malfunction of the force transducer would cause injury to
persons or damage to equipment, the user must take appropriate additional safety pre­
cautions that meet at least the applicable safety and accident prevention regulations (e.g.
automatic emergency shutdown, overload protection, catch straps or chains, or other fall
protection).
The downstream electronics should be designed so that failure of the measurement sig­
nal cannot lead to secondary failures.
General dangers of failing to follow the safety instructions
The force transducers are state-of-the-art and failsafe. There may be dangers involved if
the transducers are mounted, sited, installed and operated inappropriately, or by
untrained personnel. Every person involved with siting, starting-up, operating or repairing
a force transducer must have read and understood the mounting instructions and in par­
ticular the technical safety instructions. The force transducers can be damaged or
destroyed by non-designated use of the force transducer or by non-compliance with the
mounting and operating instructions, these safety instructions or other applicable safety
regulations (BG safety and accident prevention regulations) when using the force trans­
ducers. A force transducer can break, particularly in the case of overloading. The break­
age of a force transducer can cause damage to property or injury to persons in the vicin­
ity of the force transducer.
If force transducers are not used as intended, or if the safety instructions or specifica­
tions in the mounting and operating instructions are ignored, it is also possible that a
force transducer may fail or malfunction, with the result that persons may be injured or
property damaged (due to the loads acting on or being monitored by the force trans­
ducer).
The scope of supply and performance of the transducer covers only a small area of force
measurement technology, as measurements with (resistive) strain gage sensors presup­
pose the use of electronic signal processing. Equipment planners, installers and opera­
tors should always plan, implement and respond to the safety engineering considerations
of force measurement technology in such a way as to minimize residual dangers. Perti­
nent national and local regulations must be complied with.
Conversions and modifications
The transducer must not be modified from the design or safety engineering point of view
except with our express agreement. Any modification shall exclude all liability on our part
for any damage resulting therefrom.
U2B
5
SAFETY INSTRUCTIONS