Rissfox Mini - Crack Monitor

Together with the climate sensors, comprehensive and meaningful measuring data are available after a short while. The fully calibrated intelligent CMOSens® sensor for temperature and humidity is characterised in particular by its optimised long-time stability, high precision, reliability and extremely fast response time of less than 3 seconds. Laborious re-calibration is not necessary, because the sensor can simply be replaced directly on site if need be.

The batteries (AA) integrated in the data logger supply the system with power for up to two years and can be replaced easily at any time.

The data logger is programmed and evaluated with the universal SoftFOX software under Microsoft Windows Vista, 7, 8, 8.1, 10, 11 or newer. After connecting the Rissfox Mini to the computer via a USB or serial interface cable, the system can be read out or configured immediately.

The software offers numerous general functions like the dynamic project management, graphical data analysis, computer controlled series of measurements, dew point calculation, export functions, automatic backup, flexible zoom, and much more. Furthermore, the data logger itself can be programmed according to the needs of the user. For this purpose many software functions are available e.g. setting the measurement rhythm (1 second up to 24 hours), fully automatic start-stop-operation or ring buffered data aquisition, alarm conditions for SMS alarm notification, acoustic alarm or telephone alarm, min/max-detection for a consistent registration of extremal values, setting the system clock, precise battery test, digital serial number and much more.

In addition to the data evaluation with the computer, it is possible to connect a flexible alarm system to the data logger. By this means e.g. a SMS notification can be transmitted when the crack displayment exceeds a predefined value. It is also possible to trigger a telephone alarm, when the air temperature or humidity falls/rises below/above a specified threshold. An accustic alarm buzzer is also available.



The fields of application for the Rissfox Mini are almost unlimited and range from building monitoring and damage assessment to structural condition analysis and monument protection to preventive maintenance, research and development etc.

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

Use our high-precision crack sensors, that have proven themselves over many years, for analyzing crack displacements together with the Rissfox Mini data logger at up to five locations simultaneously. Combined with our telemetry system Remotefox you can monitor the measurement readings of up to ten cracks even hundreds of kilometers away.

You don't want to manually download the collected data of your systems on-site, but rather conveniently receive, process and evaluate it directly in the office?

With the Remotefox, this is easily achievable! You will receive an immensely powerful telemetry and alarm system for the worldwide mobile and wireless transmission of all your collected measurement data.

Simply connect up to two complete data logger systems, including all expansion modules, to the Remotefox. You will fully automatically receive the collected measurement data as an attachment by email at regular intervals. Once received on your computer, you can evaluate the measurement data just as if you were directly on-site.

The Remotefox is powered by normal batteries and can transmit the collected measurement data independently from the power grid for several years. Since the measurement readings are transmitted via email, there will be no subscription fees and no SaaS (Software as a Service) charges!

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:

• Data memory for 16000 readings integrated (optional data memory for up to 64000 readings)
• Measuring and storing rhythm (1 second to 24 hours) freely adjustable via pc software
• Freely programmable fully automatic start-stop-operation or endless loop storage
• Crystal oscillator controlled real-time clock and real-time calender integrated
• Measuring range of the crack sensor: 10 mm (+/- 5mm)
• Extended measuring range of the crack sensor with 75mm available on request
• Resolution of the 10mm crack sensor: 2.5µm = 0.0025mm = 0.0001inch
• Resolution of the 75mm crack sensor: 18.5µm = 0.0185mm = 0.00072inch
• Length of the crack sensor cable: 2m (longer sensor cable up to 100m available on request)
• High-speed crack monitoring with up to 100 Hz can be activated
• No mechanical torsion of the sensor, thanks to the complete decoupling of the stopper
• Sensor zeroing (tara function) and system start via activation magnet
• Optional: Combined air temperature and humidity sensor (climate sensors) available
• Optional: Special protective cover for the 10mm crack analysis sensor (weather protection)
• Optional: Additional "Water Protection" option for the 10mm crack analysis sensor
• No calibration of the climate sensors necessary
• Measuring range of the air temperature sensor: - 20°C to 70°C
• Measuring range of the humidity sensor: 0 %rH to 100 %rH (dew free)
• Resolution of both climate sensors: 0.1 °C / 0.1 %rH
• Typical accuracy of the air temperature sensor: <0.4 °C at 20 °C
• Typical accuracy of the humidity sensor: <3.0 %rH between 20 %rH and 80 %rH
• Optional: Climate sensor with a typical accuracy of < 1.5 %rH and < 0.1 °C
• Hysteresis of the humidity sensor at an air temperature of 25 °C: +/- 0.8 %rH
• Repeatability of both climate sensors: 0.1 °C / 0.1 %rH
• Long term stability of the air temperature sensor: <0.04 °C per year
• Long term stability of the humidity sensor: <0.5 %rH per year
• Dew point calculation available via PC software (also for thresholds different to 100 %rH)
• Automatic min/max monitoring for gapless registration of extreme climatic values
• Directly compatible with our Remotefox (telemetry system and remote data transmission)
• Alarm output for SMS alarm system, acoustic alarm system, telephone alarm system etc.
• Numerous other external sensors available for the data logger (e.g. 8 x object temperature)
• Calibration certificates available on request
• Measuring data preserved via EEPROM memory even without batteries
• Power supply via two standard AA batteries
• Battery lifetime up to two years (see configuration). Batteries can be replaced at any time
• Shock-resistant and watertight data logger housing. Wall-mounting possible (screws concealed)
• Data logger dimensions: 88 x 120 x 50 mm (HxWxD)
• 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)