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1 Product Overview 1.1 Profile This system can simulate the process of industrial safety electricity system, so that students can have an initial intuitive understanding of industrial safety electricity. To cultivate the students' corresponding knowledge and skills, suitable for the teaching and skills training assessment of higher vocational colleges, vocational schools, secondary vocational schools and technical schools. 1.2 Feature (1) training platform adopts aluminum frame type structure, measuring instrument and load module uses the way of hanging box installation, training power built-in integrated installation, each unit with flexible, easy to use, not easy to damage. (2) the experimental circuit and devices are fully configured and can be used in combination to complete the training contents of a variety of subjects. (3) the training platform has a good security system.

The system can simulate the process of grounding system, so that students can have a preliminary intuitive understanding of the grounding system, and be familiar with the composition, connection and operation principle of the grounding system. To cultivate the students' corresponding knowledge and skills, suitable for the teaching and skills training assessment of higher vocational colleges, vocational schools, secondary vocational schools and technical schools. 1.2 Feature (1) training platform adopts aluminum frame type structure, measuring instrument and load module uses the way of hanging box installation, training power built-in integrated installation, each unit with flexible, easy to use, not easy to damage. (2) the experimental circuit and devices are fully configured and can be used in combination to complete the training contents of a variety of subjects. (3) the training platform has a good security system.

1 Product overview 1.1 Profile This system can simulate data wiring process, make the students to have a intuitive understanding on data cabling system, trains the student to the corresponding knowledge and skills, suitable for, higher vocational colleges, secondary vocational schools and vocational school related professional teaching and skills training examination. 1.2 Feature (1) Aluminum profile frame structure is adopted to facilitate the installation of devices. Each unit is flexible and easy to use and not easily damaged. (2) Rhe experimental devices are fully configured and can be used in combination to complete a variety of training contents.

The System Should Cover the Following Training Objectives: Study of basic principle of operation of a gear pump Recording of pump characteristics Investigation of relationship between head and speed Influence of pressure limitation Determination of efficiencies Minimum Technical Specifications Required (like or better than): Closed oil circuit Needle valve for modifying the flow rate Overflow valve for head adjustment Should include sensors for temperature and pressure at inlet and outlet of the pump Oval wheel meter act as flow sensor Integrated microprocessor-based instrumentation Gear pump with speed controlled drive its power consumption: 370W, nominal speed ranges from 100 to 750 rpm, maximum flow rate of 32cm³ per revolution and maximum head of 80m Overflow valve: 0 to 5.5bar

The System Should Cover the Following Training Objectives: Study of principle of operation of a piston pump Recording of pump characteristics Study of pressure curves of delivery pressure and cylinder pressure Effect of pulsation damping Investigation of P-V diagram Determination of efficiencies Minimum Technical Specifications Required (like or better than): Closed water circuit system Should include frequency converter to adjust the speed of piston pump Transparent water tank Needle valve for adjusting the flow rate Adjustable head via overflow valve: 0.2 to 2bar Pulsation damping of the head using air vessel with bleed valve Sensors for pressure at outlet and in the cylinder of the pump, flow rate and crank angle Integrated microprocessor-based instrumentation

The System Should Cover the Following Training Objectives: Visualization of cavitation effects in a transparent pump Investigation of formation of cavitation Familiarization with cavitation influence Influence of speed, inlet pressure, flow rate and temperature on cavitation Minimum Technical Specifications Required (like or better than): Should include transparent pump housing and pipe at the inlet side Open impeller to observe the blades during operation adjustable pump speed using frequency converter Temperature control should be via heater and external cooling should be via water supply Rotameter for flow measurement Should include manometers to display of the pressures at inlet and outlet side of the pump Digital display of speed, water temperature in the return and flow rate Closed water circuit Centrifugal pump with drive motor of power consumption: 0.35kW, speed: 520 to 3250rpm maximum flow rate: 60L/min and maximum head: 14m Tank: 20L heater: 2kW inlet pressure measuring range: -1 to 0bar outlet pressure measuring range: 0 to 1.5bar

Fonction (s)/Objectifs pédagogiques Use of enthalpic air diagram Characterization of humidification and dehydration phenomena in an air conditioned environment Description : Autonomous unit, monoblock, mounted on mobile support frame, treated against oxidation, PVC panel. Digital display of temperatures from suitable probes for dry and wet temperatures, paper output of results in the form of curves. 1 fan motor assembly, equipped with a manual speed controller . 1 conduct of blowing Including : 1 water vapour injector 1 electric heating battery, regulated temperature and adj

1. Description The wiring of electrical components for the start and operation of refrigerant compressors is a typical task in the field of refrigeration. Safety aspects also play an important role. With SR 171 this knowledge and these skills can be acquired. All components are operated and tested with mains voltage to provide high relevance for practice. The electrical components for the start and operation of the refrigerant compressor are arranged clearly visible. The electrical connection of the individual components is made with cables via the lab jacks. The components are e.g. the capacitor and startup relay necessary to start the motor. The circuit diagram on the front panel enables the easy allocation of the individual components. The refrigeration circuit with compressor and receiver enables the checking of the pressure switches on the intake and delivery side of the compressor. The pressure is set via valves and the pressure switch tripped. Two manometers enable the monitoring of the pressure curve. If one of the pressure switches trips, the current supply to the compressor is interrupted. The wiring and checking of other typical components of the safety chain, e.g. circuit breaker and automatic fuse, is also carried out.

Technical Specification • Refrigerant: R134a • Hermetically sealed compressor: • Water cooled condenser through Plate heat exchanger • Condenser cooling fan not required. • Water cooled evaporator via Plate Heat Exchanger with submersible pump • Variation of flow through plate Heat Exchanger • Thermostatic Expansion valve: Danfoss TN2 Internally equalised valve • Refrigerant flow measurement: Rotameter, Range: 938 Litres/min calibrated for 134A • Hand shut off valves are not necessary because it is a sealed system. • No filter dryer necessary as it is a sealed system • Bourdon Pressure Gauge: 025Bar • Bourdon Compound Gauge 010Bar • HP/LP CUTOUT: Low Pressure 2 Bar/ High Pressure 16 Bar • 24V DC Speed controller on compressor with integral power measurement on PC • Electrically isolated • No digital display. PC display required. • USB computer connectivity

Pneumatic and electropneumatic dynamometer Double sided mobile workstation allows mounting and operation of different components without tool use (components equipped with quick mounting system)

a.FMS complete system 1 set contain A-storage station B-mechanical maintenance station C-assembly and quality control station D-PLC station E-tray tracking station F-management station Storage station Cartesian robot 36 storage units PLC control station Aluminum profile frame

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Minimum Order: 25

Amplifier ICs Features: • The multiplier of the operational amplifier is infinite. • The input resistor of an operational amplifier is infinite and the output impedance is zero. • The voltage amplification ratio is generally 104~106, and some have reached more than 107. • Output impedance is very low, generally tens of Ω below. • Input impedance is very high, generally several hundred kΩ above. • The integrated operational amplifier circuit is characterized by high voltage amplification, low output impedance and high input impedance. • The input stage of an operational amplifier is a differential amplifier circuit with high input resistance and the ability to suppress zero drift. • Intermediate stage mainly for voltage amplification, with high voltage amplification times, generally by the common emitter amplifier circuit. • The output pole is connected with the load, and has the characteristics of strong load carrying capacity and low output resistance. • Optimized for high precision system, rich category of innovative operational amplifier product line

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Minimum Order: 25