Menhir ground vibration monitor from AcSoft

Simple, flexible and robust recorder efficiently and accurately measures ground  vibrations, shocks and tremors

AcSoft Health & Safety – specialists in noise and vibration monitoring instrumentation for occupational health and the environment – are now offering the Menhir ground vibration monitor from Semex-Engcon GmbH.

The simple, flexible and robust ‘modular enhanced intelligent recorder’ (Menhir) efficiently measures vibrations, shocks and tremors generated by mining, demolition and quarrying activities, as well as construction and building works.

In conjunction with SDC (Smart Data Centre) software, the web-based, high-resolution Menhir system is capable of accurately recording, analysing and transferring data from complex structural and vibration monitoring and metrology applications in harsh environments.

The SDC software offers a fully integrated cloud solution for quick access to data and Menhir device status at any time from a PC, tablet or smartphone. An optional complete analysis module is also available, allowing reports to be automatically generated and transmitted electronically in freely adjustable intervals.

Allowing easy operation with minimal training, the intuitive Menhir can be customized to suit individual monitoring requirements and configured for immediate set-up and use. A simple configuration tool means settings can be changed at any time, with quick and full access to the monitor’s parameters and values, as well as all analytical options and results.

For maximum flexibility, the Menhir is available with internal and external SIM card slots. The latter allows the user to determine which provider is transmitting data, without having to open the device. The system can also be equipped with a low-cost M2M solution.

An internal battery provides up to 48-hours operating autonomy, depending on transmission requirements. The Menhir can be placed with up to 15° offset on the ground. The innovative measurement device detects the offset and corrects it automatically. It can also be aligned with the three integrated levelling screws, so no mounting platform is required.

The Menhir offers a dynamic range >130dB at 100 measurements per second per channel, as well as a bandwidth from 1 to 400 Hz. It incorporates a selectable alarm output to designated personnel via SMS or email.