Spirometer Digital Sensor
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The rotor is held on the base frame with pivoting bearings. The weights and bearings can be placed at any location along the shaft and attached securely with quick-acting clamps. This benchtop unit is used to show the resonance and critical bending speed on rotating shafts. The construction of the rotor of a thin, flexible shaft and rigid weights facilitates the theoretical comprehension. It is possible to switch speeds during the experiment as desired. A transparent protective hood covers the rotating parts. A set of electrical vibration sensors with clamping set is also available. It is driven by a flexible coupling. Two motor speeds can be fine-adjusted and preset with ten-speed potentiometers. They are controlled electronically and displayed digitally.
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The Fluid Statics And Pressure Measurement equipment is designed for the study of static fluid and the measurement of pressures with different types of piezometric tubes and level measurement elements as graduated scales and level meter. One of these water columns has atilting system, so that students can clearly see the effect of the different possible inclinations. The tank and the in water columns have graduated scale for immediate and clear display of the water level that can be measured also by the water level supplied with this system. The equipment includes a transparent tank from where it is possible to pour water through valves and pipes and deliver it in the columns installed in the syst
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A fan with a flow control valve is connected to the bottom tank, and air is driven upwards through the column and exhausted at the top. Instrument are provided for measurement air flow rate, water flow rate, pressure drop across the cooling tower, temperature and moisture of the inlet and outlet air. This is a Cooling Tower Demonstration Unit. Water is heated in the storage tank, pumped through a flow meter and sprayed at the top of the tower. The water is cooled mainly by evaporation and drops to the bottom tank. Makeup water is admitted to the storage tank through a float valve. The packing in the tower breaks the water into thin films and droplets.
Experiments:
Application of steady flow equation to energy balance.
Cooling tower performance at various air and water flow rates with different inlet water temperatures.
Observation of water flow patterns and distribution.
Measurement of water and air flow rates, temperatures and humidity.
Function of the RSF governor
Function of the pressure valves
Displacement of the piston rod
Torsion of all pump plungers
By turning the camshaft one can see thestroke of all pump plungers.
Through the demonstration and operation of the Buick Excelle Rear Wheel Hub Model, the knowledge of its structure and function can be raised a lot. Transparent Buick Excelle Rear Wheel Hub educational equipment is designed for colleges, universities and vocational schools in teaching the structure and function of car rear wheel hub.
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Concrete flexural machine 150 KN open sided frame motorized with control unit fully automatic model to perform flexural tests on concrete beam specimens max. dimensions 200x200x800mm, kerbs, tiles, slabs, masonry units, flat blocks, flagstones, and any type of material having max. size 600x250 mm (lower rollers max. length 1325 mm).
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Features:
Headstock and worktable up & down perpendicularly
Positive spindle lock
Distinct auto device for releasing tools, operate very easily
Super high column
Milling, drilling, tapping
Precision micro feed
Gear driven, lower noise
Head swivels 360 Horizontally.
Theoretical topics:
The induction phenomenon and the Faraday Neumann's and Lenz's laws
The moving coil ammeter
Force in a wire run by current in a magnetic field
The self induction phenomenon
Lorentz's force
Direct current electric motors
Fault simulation
The relay
The static transformer
Alternators and dynamos.
Heating and cooling circuit equipped with expansion vessel, pump, boiler safety group, thermometers, water meter, heat exchanger
Transparent oil tank with filling and bleed connections
Functional heating boiler with oil burner
Boiler with control unit
Dissipation of generated heat via plate heat exchanger and cold water connection
Boiler casing equipped with a viewing window made of special glass.
Dead Time Element allows the insertion of an adjustable real dead time in those processes which are characterized by it.
Technical features:
Power supply: +15 V ; 0 V ; 15 V
Dead time Tt = 10 ms .... 100 ms/ 100 ms .... 1 s
Potentiometer fine setting.
Led indicators of over range.
Signal voltage range:Â10V, ..., +10V
Proportional coefficient of the module KS = 1
Three position switch for coarse setting and exclusion of the dead time.
Refrigeration system and pump to cool the water in the collecting tank
Pneumatic control valve in main circuit as actuator for all controls
Sensors for the measurement of the controlled variables; level, flow rate and temperature
Control of level, flow rate, temperature and cascade control
Main circuit with collecting tank, graduated stirred tank with heater, pneumatic control valve and centrifugal pump
PLC to monitor safety devices
Cooling circuit with pump, heat exchanger and rotameter
6 pushbuttons for fault simulation
2 parameterisable industrial controllers.
Initial sterilisation method:
Ethylene oxide gas.
Gauge of thread: Expressed in Decimal gauge DEC number and in the old system of thread numbering: DEC3 (2/0).
Thread without needle.
Type of thread: Absorbable, synthetic braided thread (PGA, polyglycolic acid).
Length: 150cm.
Sterile.
Disposable.
It is used to study conductivity of object in middle school physics curriculum, consists of box, support, battery box and test strip (copper, iron, aluminum and plastic).
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It is used for the cleaning, sterilization, health-care, massage, beauty care and decomposition of communication equipment, electrical repairing, glasses, optical instrument and family.
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For regulatory monitoring, process water testing, and environmental analysis in the field or laboratory.
Readings are determined by signal averaging to minimize fluctuations and have highly repeatable measurements
Simple calibration procedure with microprocessor adjusting calibration curve accordingly
USB port interfaces with a datalogger or computer; cable included.
Multi-detector optical configuration assures stability and minimizes stray light and color interferences.
Auto-Range: 0 to 4000 NTU
Accuracy: ±2%; ±3% over 100NTU
LCD Display: 6 lines with backlit display
Light Source: Tungsten filament lamp
Readout: 0.01 from 0 to 10.99; 0.1 from 11 to 109.9; 1 from 110 to 4000 NTU
Response Time: 5 sec.
Sample Chamber: Accepts 25mm diameter flat-bottom, screw-capped sample tubes
L x W x H: 7.5 x 3.5 x 2.5 in. (19.1 x 8.8 x 6.4cm).
Polycarbonate lens with anti-fog and anti-scratch coating
Frame consists of a combination of a polycarbonate lens with a Thermoplastic rubber lining
Provides chemical splash protection
Polyester headband provides a comfortable fit, while indirect venting allows air flow for anti-fog protection.
Streamlined design to work with hardhats and respirators.
Comfortable polyester headband provides a comfortable fit
Indirect venting allows airflow to minimize fogging.
Oxygen O2 Gas Digital Sensor
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Simple equipment suitable to study accurately the Bernoulli's Theorem Demostration the system includes a manometer board with multiple tubes granting the possibility to read simultaneously different pressures along the pipe. The manometer has non leaking quick fittings in order to avoid the outlet of water when the system is disconnected from the hydraulic bench. The connection of this unit to the hydraulic bench (not included in this item) is made through threaded screws and no tools are required.
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The Shell And Tube Heat Exchanger Transparent Casing apparatus is used for studying heat transfer through a shell and tube heat exchanger under parallel or counter flow conditions. Parallel and counter flow is by switching cold water hoses. The unit requires outside water supply. The module comprises a hot water tank with a transfer pump, instruments for monitoring and control. The unit consists of a shell and tube heat exchanger, and a service module.
Experiments:
Determination of heat transfer coefficient.
Effects of flow rate and temperature difference.
Demonstration of heat transfer under parallel and counter flow.
