Signal conditioning
Improving safety and efficiency in production processes
HBM is pursuing the goal of a fast and flexible integration of machines into Industry 4.0 environments to minimise downtimes and optimise service assignments by retrofitting its production facilities
ince its foundation in 1977, the HBM calibration laboratory has been one of the most renowned and efficient facilities of its kind. HBM was also the first calibration laboratory accredited under the DKD (Deutscher Kalibrierdienst / German calibration service). Continuous investments in the expansion of production facilities ensure the highest precision and the best possible fulfillment of growing customer requirements. This system is now in operation 24/7 and
S
is fully utilised. The system tests sensors with capacities ranging from 4.7t to 33t and (with part load) up to 100t. The system can, therefore, represent a force of about 330kN with weights. It is essential to ensure efficient and safe operation. A defect in the mechanics or the air conditioning systems causes costs and downtimes which have to be remedied. In order to achieve this goal, the first calibration system was equipped with PMX, HBM’s measurement
technology, including a cloud connection. The proviso was that the existing system control (PLC) could not be changed and the implementation times of the new system monitoring approach had to be reduced to a minimum. Working with Bosch, HBM looked for the
right hardware and software: Large amounts of process and sensor data are merged in the in-house PMX amplifier system and transferred to HBM measuring data acquisition software, which acts as an IoT edge, at a high resolution rate (several kilohertz). The data then continues to the HBM cloud storage in a compressed format and at a low transfer rate (a few hertz). The great advantage is that the data is available in the required level of detail depending on the use.
PLUG-AND-RUN IN THREE STEPS In the first step, the operating states of the system were analysed and the relevant points for machine monitoring were determined. This was followed by the selection of suitable sensors and measurement technology. In the test chamber – the upper part of the calibration system, where the sensors (force transducers and load cells) are located –
System setup with instrumentation and PMX measurement technology with a cloud connection
Instrumentation Monthly September 2020
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