Application Notes - HBM BU18 Mounting Instructions

8
BU18
2

Application notes

The BU18 build−up system is a modular measurement system for measuring
compressive forces. These can be measured to 3 MN with the complete
system, as well as to 1 MN with the individual C18−S1/1MN force transducers
(it is essential here to comply with the Mounting Instructions for the C18). This
allows the traceability of a force calibration system for 3 MN to be
implemented with the aid of the more accurately calibrated 1 MN force
transducer.
Because the system measures static and quasi−static compressive forces
with high accuracy and reproducibility, it must be handled carefully. It is
essential to keep to the mechanical structure described in these
Mounting Instructions, as measurement errors may otherwise occur.
Particular care must be taken when transporting and installing the system.
Dropping or knocking may cause permanent damage to the transducers.
The build−up system can be used with both DC voltage amplifiers and
carrier−frequency amplifiers with a maximum carrier frequency of 600 Hz.
With a PTB calibration to ISO 376, the Class 00 rating of the C18−S1/1MN
force transducer is assured. To achieve optimum accuracy, it is advisable to
calibrate the entire measurement chain. This comprises the transducer, the
cable and the amplifier.
The specifications list the permissible limits for mechanical, thermal and
electrical stress.
It is essential that these are taken into account when planning the measuring
set−up, during installation and ultimately, during operation.
HBM A2306−1.3 en/de