MOBILE-CASSY 2 WIFI WITH
EXPERIMENT EXAMPLES
THE ULTIMATE MEASURING DEVICE FOR EXPERIMENTS IN ALL NATURAL SCIENCES
CASSY
THE CASSY SYSTEM
DATALOGGING AND MEASUREMENT TECHNOLOGY FOR ALL LEVELS
Over 30 years ago, the idea was born to develop a modular and compatible system of measuring devices, sensor boxes and sensors for various measurement options in science education. The result was the CASSY system. Today, the CASSY family is one of the most successful and popular systems for recording and analysing measurement data worldwide.
The modular system can be used in the natural sciences of physics, chemistry and biology. You will find the right combination of measuring instruments for the various requirements - device, sensor and measuring software.
With the wide range of measuring devices in combination with over 50 CASSY sensors and the CASSY Lab 2 software, the CASSY Web app or the digital experiment instructions called Lab Docs. CASSY is a favourite with schools and universities all over the world.
Our first released sensors can still be used today without any problems. However, it is not only the longevity, but also the didactic concept, the intuitive handling and the high technical standard that make CASSY unique.
INNOVATIVE MEASUREMENT
MOBILE-CASSY
2 WIFI
THE ULTIMATE STUDENT MEASURING DEVICE
n For all measurement tasks and topics in physics, chemistry and biology
n Both measuring and analysing
n With WiFi (connection to a school/university WiFi router or setting up your own access point)
n Large, graphic-capable measured value display for high-contrast diagrams
n Voltage, current, power, energy and temperature can be measured directly without additional accessories
n Compatible with all CASSY sensors S and M
n Automatic sensor detection
n Fast measured value recording - up to 500,000 values per second
MORE THAN ENOUGH REASONS
FOR THE MOBILE-CASSY 2 WIFI:
n Large measured value display
n Automatic detection of the sensors
n 4 mm safety sockets are already integrated for measuring U, I, P and E in many measuring ranges
n Including NiCr-Ni temperature sensor
n Compatible with all CASSY sensors S and M
n Touchwheel allows to quickly navigate to the appropriate screen view or list entry with rotating movements
n Well suited for students groups, as the screen remains visible during operation
n Measuring time, measuring interval, trigger and pre-trigger are adjustable
Experiment set-up: Physical pendulum with rotary motion sensor S
n Measured value graphic with freely assignable coordinate axes and selectable analyses (e.g. zoom and straight line adjustment)
n Measured values and screenshots can be saved on an integrated micro SD card and copied to a USB stick
n Full support from CASSY Lab 2, e.g. for demonstration on the projector
n Replaceable quality rechargeable batteries ensure long battery life both in operation (8 h) and in standby (several years)
n Practical stand
n Universal connection options
n Intuitive operation
Wireless connections to whiteboards, tablets & smartphones
FLEXIBLE USE - THE CHOICE IS YOURS:
TABLET OR SMARTPHONE
PC OR LAPTOP
SINGLE MEASURING DEVICE/STANDALONE WITH WHITEBOARD
- Can be used immediately
- Measure & analyse directly on the device
- with WiFi connection
- Experimenting with interactive experiment instructions Lab Docs or
- Measure and analyse in the CASSY Web app
- Connection via USB or WiFi
- Experimenting with interactive Lab Docs or
- Measuring, analysing & postprocessing with CASSY Lab
INTERACTIVITY BETWEEN MEASUREMENT TECHNOLOGY AND LAB DOC
- via VNC client or
- Measure & analyse in the CASSY Web app or CASSY Lab or
- Presentation of individual measurement results
Up to four devices (tablet/smartphone/laptop) can connect to one Mobile-CASSY 2 WiFi.
After connecting to Mobile-CASSY 2 WiFi, the settings for the experiment transfered are (measured variables, measuring ranges, etc.).
Measured values are displayed directly in real-time tables and diagrams within the Lab Doc.
APPS FOR INTERACTIVE EXPERIMENTS
The comprehensive CASSY Web app for platform-independent use on all tablets and smartphones also offers many options for a wide variety of measurements and storage for further utilisation of the measurement data obtained.
MEASUREMENT DISPLAY DEMONSTRATION VIA WHITEBOARD
The Mobile-CASSY 2 WiFi can be connected to a VNC client (Virtual Network Computing) on an interactive white board. The projection of the MobileCASSY display enables integration of all students. It can be operated both on the MobileCASSY 2 WiFi and on the whiteboard.
2 SENSORS S all CASSY sensors S and sensor boxes are supported
VOLTAGE AND CURRENT directly via 4 mm safety sockets
2 SENSORS M e.g. for the light barriers within mechanics
TEMPERATURE SENSOR
data and screen shots
TECHNICAL DATA AT A GLANCE
HIGH-CONTRAST DISPLAY IN ORIGINAL SIZE AND RESOLUTION
The currently possible measuring channels are displayed and selected at the top.
Icons at the bottom right indicate the options for accessing the settings menu and other displays using the touch wheel .
ORDER NUMBER AND SCOPE OF DELIVERY
524 005W2 Mobile-CASSY 2 WiFi
Scope of delivery Mobile-CASSY 2 WiFi: Mobile-CASSY 2 WiFi
Charger
NiCr-Ni temperature sensor Quick guide
Graphic display: 9 cm (3.5“), colour QVGA
Operation: large capacitive touch wheel (42 mm)
Resolution: 12 Bit
Integrated measurement ranges Voltage: ±0.1/±0.3/±1/±3/±10/±30 V
Integrated measurement ranges Current: ±0.03/±0.1/±0.3/±1/±3 A
Integrated measurement ranges Temperature: -200 ... +200 °C / -200 ... +1200 °C
Sensor connections: 2 (CASSY sensors S and sensors M)
Sampling rate: maximum 500,000 values/second
Time resolution of the timer inputs: 20 ns
Loudspeaker: integrated for key tones and GM counter tube (can be disabled as required)
Data storage: integrated micro SD card (4 GB) a thousand measurement files and screenshots
Accumulator capacity: 14 watt-hours (AA size, replaceable)
WiFi: as access point or client
MOST DIVERSE ACCESSORIES
WE OFFER A WIDE RANGE OF ACCESSORIES FOR THE MOBILE-CASSY 2 WIFI TO SUPPORT DURING PREPARATION, EXPERIMENTATION AND FOLLOW-UP.
SAFE AND ORGANISED STORAGE
STORAGE TRAY MOBILE-CASSY 2 (524 0039)
n 8 Mobile-CASSYs in one storage tray
n Safe storage of the Mobile-CASSYs
n Fast completeness check
n Easy transport
n Suitable for the Science Lab system
n Can be stacked symmetrically with and without lid
524 0039 Storage tray Mobile-CASSY 2
HOLDER FOR MOBILE-CASSY 2, FOR CHEMISTRY PRESENTATION SYSTEM (CPS) (524 0036)
n Integrates the Mobile-CASSY 2 WiFi into any experimental setup
HOLDER FOR MOBILE-CASSY 2, STAND (524 0040)
EXTRA CHARGING ADAPTER FOR SIMULTANEOUS CHARGING OF THE MOBILE-CASSY 2 WIFI
CHARGING ADAPTER FOR 4 MOBILE-CASSY 2 (524 0034)
n Simultaneous charging of up to 4 Mobile-CASSYs
n With only one power supply unit
n Easy handling
n With 2 charging adapters, all 8 Mobile-CASSY 2 can be charged in the storage tray
ENVIRONMENTALLY FRIENDLY BATTERY AND CHARGING MANAGEMENT MADE EASY
n With 2 charging adapters, all 8 Mobile-CASSYs can be charged in the storage tray
n Same charging time compared to single charging
n Charging and discharging process is switched off automatically (no damage due to complete discharge, for example)
n Each Mobile-CASSY 2 WiFi can also be operated directly via a plugin power supply unit
n Commercially available NiMH rechargeable batteries that are easy to replace
n Mobile-CASSY 2 WiFi fully operates all CASSY sensors
CASSY SENSORS AT A GLANCE
The CASSY sensors M are the ideal supplement for LEYBOLD student experiments with the Mobile-CASSY 2 WiFi.
n Low-cost sensor family, specially developed inhouse for student experiments
n Several measured variables and/or adjustable measuring ranges, defined according to the curricula
n Sampling rate of up to 500,000 values/s to enable experiments such as resonant circuits and sound recording in accordance with the curriculum
n Sensors become part of experimentation with tablets, smartphones and laptops by simply plugging them in
n Operated entirely via Mobile-CASSY 2 WLAN, which enables environmentally friendly and simple charging management with its NiMH rechargeable batteries
n Automatic setting of the measured variables
n Immediate measurement without tedious adjustment
n Continuous expansion of the family with additional sensors
n Additionally over 50 CASSY sensors S
n Supported by the digital experiment instructions Lab Docs and the CASSY Web app
FOR THE STORAGE OF YOUR CASSY SENSORS WE OFFER YOU SPECIALLY DEVELOPED TRAYS:
TRAY FOR SENSORS M (524 0042)
For storing up to 24 sensors M or adapter M from the CASSY system.
For storing up to 8 pieces of electrochemistry box M or pH adapter M and pH electrodes. TRAY FOR ELECTROCHEMISTRY BOXES (524 0044)
RELAY M (524 446)
PH ADAPTER M (524 452)
GM ADAPTER M (524 440)
FORCE SENSOR M, ±50 N (524 434)
MAGNETIC FIELD SENSOR M, ±100 mT (524 436)
MICROPHONE M (524 442)
VOLTAGE SENSOR M, ±30 V (524 438)
LUX SENSOR M (524 444)
LIGHT BARRIER M (524 431)
ELECTROCHEMISTRY BOX M (524 450)
n Resolution: 0.1 % of the measurement range
n Compensation (Tare): ±50 N in every measurement range
n Fixing: with securing bolts on stand equipment
SENSORS M
LIGHT BARRIER M (524 431)
Cascadable photoelectric barrier for measuring period durations, travelling time, paths and velocities on the student track or during free fall with Mobile-CASSY 2 WiFi.
Time resolution: 100 ns
Path resolution: 5 mm when utilising the spoked wheels
Cascading: up to 5 photoelectric barriers (e.g. for travelling time measuring or up to 5 sequential relocity measurements on one track)
Fixing: locking in place under the student track or via M6
Additionally recommended
Spoked wheel
Start jig, trolley
Start jig, ball
VOLTAGE SENSOR
M, ±30 V (524 438)
For measuring the electrical voltage up to CASSY 2 WiFi. In connection with the integrated voltage input, Mobile-CASSY 2 WiFi can become a 2 channel storage oscil loscope.
n Voltage input: 4 mm safety sockets
n Measurement ranges: ±3/±30 V
n Resolution: 0.05 % of the measurement range
MAGNETIC FIELD SENSOR
M, ±100 mT (524 436)
For measuring the tangential or axial magnetic flux density up to 100 mT with Mobile-CASSY 2 WiFi.
Measurement ranges: ±10/±100 mT
Resolution: 0.05 % of the measurement range
Measurement direction: switchable between axial and tangential
SENSORS M
n Measuring variables: Voltage, frequency, noise levels
n Measurement ranges: automatic
GM
ADAPTER M (524 440)
For measuring radioactive radiation with a Geiger-Müller counter tube (559 01 or 559 012) with Mobile-CASSY 2 WiFi.
Counter tube voltage: 500 V (internally generated)
Counter tube input: Coaxial socket
PH ADAPTER M (524 452)
Enables the connection of a pH sensor or a redox electrode to the Mobile-CASSY 2 WiFi.
n Measuring range pH: 0 ... 14 pH
n Resolution pH: 0.01 pH
n Measuring range U: -2 ... 2 V
n Resolution U: 0.01 V
LUX
SENSOR M (524 444)
For measuring the illuminance of visible light with Mobile-CASSY 2 WiFi.
Measuring ranges: 0...100 lx, 0...1 klx, 0...10 klx, 0...100 klx
Dimensions of the sensor: 0,4 mm x 0,4 mm
Spectral sensitivity: 480 ... 650 nm
SENSORS M
ELECTROCHEMISTRY BOX M (524 450)
Mobile current source for experiments and voltage and current measuring device in conjunction with the Mobile-CASSY 2 WiFi. For power supply up to 300 mA and intuitive, parallel measurement of electrical voltage up to ±20 V and current up to ±2 A.
n 1 output: 4 mm safety sockets
n Current: 0 to 300 mA (30 steps), power limited to 1.5 W
n 2 inputs (current and voltage measurement): 4 mm safety sockets, differential
n Current measuring range: up to ±2 A, self-resetting fuse
n Resolution: 0.1 mA
n Voltage measuring range: up to ±20 V, input resistance 1 MΩ
n Resolution: 1 mV
RELAY M (524 446)
Relay M is an actuator for the Mobile-CASSY 2 WiFi. It enables an experiment to be controlled depending on the input variables of the Mobile-CASSY 2 WiFi. This means that an output X or Y can be retrofitted in addition to inputs A and B. The simultaneous use of the 4 mm sockets remains possible.
n Output: Changeover relay with LED (max. 30 V/2 A)
n Trigger: 2 independent triggers for switching on and off
n Dead time: Δt selectable between „off“ and 1/5/10/30 s
3D ACCELERATION SENSOR M, WIRELESS (524 433)
Wireless sensor for recording the g-forces acting on the sensor (acceleration and mass attraction of the earth).
n Measured variables: Acceleration in g or in m/s²
n Measuring ranges: ±2/±4/±8/±16 g or ±20/±40/±80/±160 m/s²
n Resolution: 0.0001 g or 0.001 m/s² in the smallest measuring range (16 bit)
CONDUCTIVITY SENSOR M, WIRELESS (524 455)
Wireless sensor for measuring conductivity and temperature with Mobile-CASSY 2 WiFi.
n Measuring ranges: 10/30/100/300 µS/cm, 1/3/10/30/100 mS/cm
n Resolution in the smallest measuring range: 0.01 µS/cm
n Temperature measurement and compensation: -25 ... +100 °C (can be switched on)
STUDENT EXPERIMENTS
PHYSICS
ACOUSTICS
EXPERIMENTS WITH A TUNING FORK
With Mobile-CASSY 2 WiFi and the microphone M it is possible to measure the sound level in dBA and the frequency in Hz. Furthermore, the signal of the microphone can be displayed as a U(t) diagram.
MECHANICS
UNIFORMLY ACCELERATED
MOTION ON A TRACK
Already during movement, Mobile-CASSY 2 WiFi can graphically represent the s(t) diagram and the v(t) diagram, using the light barrier M and a spoked wheel. Its parabola and straight line fit can determine the acceleration without a computer.
(ENVIRONMENTAL) RADIOACTIVITY
DEFLECTION IN A MAGNETIC FIELD
A magnetic field in front of the button-shaped source alters the radiation direction of the β-particles. With Mobile-CASSY 2 WiFi and the GM adapter M, it is possible to count the impulses and therefore give a conclusion about the direction in which the particles will be deflected.
ELECTRICITY
CHARGING AND DISCHARGING A CAPACITOR
The short time period for charging and discharging a capacitor will be displayed by utilising the 4 mm sockets on Mobile-CASSY 2 WiFi. Hereby, not only U(t) and I(t) will be measured but also P(t) and E(t) when desired. The student can therefore e.g. easily determine the time constant t = RC or the capacity C = 2E U²
STUDENT EXPERIMENTS CHEMISTRY
ORGANIC CHEMISTRY
DISTILLATION OF RED WINE
As an example of material seperation, the process of distillation will be represented in this experiment. The temperature on the vapour of red wine and distilled ethanol will be measured. Mobile-CASSY 2 WiFi with the integrated socket for the temperature sensor is utilised for the measuring.
GENERAL CHEMISTRY
THE BUNSEN BURNER
In this beginner’s lesson the hottest point in the Bunsen burner flame is to be determined. The temperature is measured at various locations in the glowing flame of the Bunsen burner. For this experiment, students use the integrated socket for the temperature sensor in Mobile-CASSY 2 WiFi.
INORGANIC CHEMISTRY
RECORDING A TITRATION CURVE
One very important experiment in the field of acids and bases ist he titration process. Hydrochloric acid will be titrated with sodium hydroxide to be able to measure how much hydrochloric acid was in the solution. The pH electrode with the pH adapter will be utilised in this experiment.
STUDENT EXPERIMENTS
BIOLOGY
BIOLOGY FOR HUMANS
NEUROBIOLOGY
The reaction time will be determined. Therefore the following questions must be clarified: Does our reaction time increase when we are distracted? How fast is the conductivity time of our nerves? The Hand and Foot switches with Reaction test adapter S connected with Mobile-CASSY 2 WiFi will provide the answers.
HUMAN PHYSIOLOGY
What influence does excitement have on our skin resistance? Does our blood pressure varies at rest and while in motion? These and other human biological analysis can be measured with various adapters S and also with the Mobile-CASSY 2 WiFi while on the move.
ECOLOGY / ENVIRONMENTAL ANALYSIS
TURBIDITY MEASUREMENT FROM WATERS
Turbidity is an important parameter to evaluate water quality. The turbidity can be easily measured on-site with Mobile CASSY 2 WiFi in combination with the Immersion photometer S.
STUDENT EXPERIMENTS BIOLOGY
ENVIRONMENTAL ANALYSIS
BACKPACK FOR ENVIRONMENTAL ANALYSIS
The backpack for environmental analysis contains the Mobile-CASSY 2 WiFi and sensors for ecological measurements. All devices are clearly arranged. The high wearing comfort allows for analysis even in remote areas.
The measured data can be read directly on the Mobile-CASSY 2 WiFi and recor-
The various sensors enable the acquisition of relative humidity, air and soil temperature, illuminance, air pressure and height. Furthermore pH, conductivity,
Pollution of inland waters (photometric reagent set required)
Backpack for environmental analysis with Mobile-CASSY 2 and various sensors
