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1. INTRODUCTION
The MR3000 is a new family of compact vibration and motion measurement system. As such it
meets all user expectations in a state-of-the-art device and thus is a highly reliable and efficient
instrument for various application fields.
The main instrument is the MR3000C, which is the first system that has been developed and the
most known among the customers all over the world. The MR3000SB (in the following sometimes
named simply SB) keeps the best features of the MR3000C, with many new features, namely high-
speed communication (FO), internal battery, relays and daisy chain connection.
The MR3000SB is dedicated to buildings, bridges, tunnels and every kind of civil structures.
On the firmware side, the SB has a built-in FTP-client (to push the data to a FTP server), a built-in
SFTP-server (to retrieve the data in interactive mode) and a built-in Web server to configure the
device via the WebUI (=Web based user interface).
In case the internet connection is available, it is possible to connect the MR3000SB to the SCS
cloud software (
), in order to visualize and post-process data coming from
different devices. It is also possible to remotely change the most important parameters of the
instruments. In this way, it is possible to manage many vibration surveys directly from the personal
office.
No special hardware or software is needed to communicate with the SB: any device with a Web
browser and Internet connectivity (such as a Laptop or a Tablet) will do the job. The user can set-up
the unit, download files via any type of network connection. Alarm messages can be automatically
sent as E-Mail.
The memory storage capacity has been increased using industrial SD card. The data-storage is
managed by a file-system.
The 3 orthogonally oriented MEMS sensors pick up the vibration and transform it into an electrical
signal which is proportional to acceleration. The signals of the sensors are continuously digitized
and stored in the ring-buffer memory. If the vibration exceeds the threshold level (trigger criteria are
fulfilled), the contents of the ring-buffer memory is written to the internal SD Flash card.
The SB may optionally be equipped with an external GPS antenna for a precise timing. By default,
the internal clock is synchronized by an NTP time-server using the Internet connection.
The SB can be interconnected in a network with other SB. The Master provides additional network
functionality, such as common trigger (simultaneous recording in all SB in the network) and
common alarm (alarm voting logic, e.g. 2 out of 4).
An internal rechargeable lead-acid 12Ah battery ensures continuous operation during power
interruptions.
The SB is very easy to operate and requires minimal maintenance. Routine maintenance and
operation does not require specialized workforce.
