Rissfox Multisensor

The Rissfox Multisensor electronic is the logical addition for our successful crack analysis systems, since this highly flexible expansion module allows you to connect up to four additional crack sensors to our Rissfox Mini data logger control center.

Use our high-precision crack sensors that have proven themselves over many years for analyzing together with the Rissfox Mini data logger crack displacements at up to five locations at the same time. Combined with our high-performance remote data communication system Remotefox you can also monitor and continuously log measurement readings for up to ten cracks even at a distance of several hundred kilometers away.

The Rissfox Multisensor moreover possesses an easy-to-configure and flexible alarm output for all connected sensors. By this means, you can be alerted directly and quickly in case of e.g. excessive crack growth or if a predefined alarm threshold is surpassed. The alarm can also be set to alert only after the situation has lasted over an extended period of time thanks to the alarm delay feature. Alarm notification can be implemented with the aid of various systems such as our SMS Alarm System, the Acoustic Alarm, ... etc.

Similar to our Rissfox Mini, the crack sensors can be zeroed (tare function) using the enclosed magnet. All other parameters are configured with the aid of the SoftFOX software. It can be used to activate the system’s individual inputs, to modify the zeroing / calibration values and to program the alarm conditions for individual crack sensors and the general alarm delay feature.

The Rissfox Multisensor is powered independently of the Rissfox Mini with four commercially available AA mignon batteries. Battery voltage is monitored completely self-sufficiently with the System Status LED providing prompt information as to when the batteries have to be replaced.

The following figure shows a Rissfox Mini that has been extended with four additional 10mm crack analysis sensors using the Rissfox Multisensor and thus controls altogether five sensors:

The possible applications of the Rissfox Mini are further extended with the Rissfox Multisensor module. For instance, it allows you to monitor, among other things, cracks on really large buildings, bridge structures, art objects, churches, parking garages, flat roofs, and many more.

As a consistent step in the development of our systems and compared to our flexible crack sensor protective cover, the "water-protected" 10mm crack sensor (additional option), offers even greater robustness. The water-protected sensor element has also been specially developed for temporary use under water. For this purpose, each of these high-quality crack sensors is tested for several days under water in a depth of two meters!


Due to the massive protective encapsulation of the sensor element, the hysteresis of the crack sensor increases only minimally to about +/- 50µm and the sensor resolution remains unchanged at a high level of 2.5µm for the Rissfox Mini, respectively 5.0µm for the Rissfox Multisensor! Therefore, the additional "Water Protection" option for the 10mm crack sensor is particularly suitable whereever very critical environmental conditions must be expected and whereever our cost-effective crack sensor protective cover cannot be used.

Below you find some examples, in which the Rissfox Mini / Rissfox Multisensor including 10mm sensors and accessories (such as our Remotefox - remote data communication system) are already installed:

Features:

• Connection of up to four (4 x) additional crack analysis sensors to the Rissfox Mini system
• Measurement readings are directly stored in the memory of the used data logger system
• Connection to the data logger is implemented using the flexible Scanntronik Universal Bus
• Measuring range of the crack analysis electronic: 10 mm (+/- 5mm)
• Extended measuring range of the electronic e.g. 75mm available as customised version
• Resolution of the 10mm crack analysis electronic: 5µm = 0.005mm = 0.0002inch
• Resolution of the 75mm crack analysis electronic: 37µm = 0.037mm = 0.0014inch
• Crack sensor measuring leads with up to 100m available on request as customized version
• No mechanical torsion of the sensor, thanks to the complete decoupling of the stopper
• Sensor zeroing (tare function) of system using the provided activation magnet
• Optional: Special protective cover for the 10mm crack analysis sensor (weather protection)
• Optional: Additional "Water Protection" option for the 10mm crack analysis sensor
• System and battery status can be seen at any time with the aid of the System Status LED
• Alarm output for SMS Alarm System, Acoustic Alarm System, Telephone Alarm system, etc.
• General alarm delay and alarm threshold freely programmable for all crack sensor inputs
• Clock with crystal oscillator accuracy integrated for the general alarm delay
• Simple configuration of the entire measuring system using the SoftFOX analysis software
• Directly combinable with our Remotefox (remote data communication system) 
• Measuring data preserved in the data logger via EEPROM memory even without batteries
• Calibration certificates available for all sensors upon request
• No crack analysis sensors are included in the package (please add them to your order)
• Power supply via four standard commercially available AA mignon batteries
• Battery lifetime up to two years (see configuration). Batteries can be replaced at any time
• Shock-resistant and watertight system housing. Wall-mounting possible (screws concealed)
• Dimensions of the expansion module: 88 x 160 x 50 mm (HxWxD)
• Weight of the expansion module: 350g including batteries
• Dimensions of the 10mm crack sensor: 125 x 20 x 20 mm (HxWxD)
• Dimensions of the 75mm crack sensor: 260 x 22 x 41 mm (HxWxD)
• Dimensions of the stopper for the crack sensor: 30 x 15 x 15 mm (HxWxD)