Theoretical topics:
Familiarization with DC motor connection types
Familiarization with stepper motor circuits
Types of electric motors
Position control with DC motor
Bi directional H bridge DC motor control circuit
Familiarization with unipolar/bipolar/bifilar/multi-phase stepper motors
Familiarization with AC motor circuits
Main characteristics of DC motor driving systems
Advantages and disadvantages of synchronous motors
Comparison between stepper motor and DC motor
Speed variation in motor controls.
Fault simulation
Demonstration of the function of safety fittings in a closed water circuit with circulating pump and expansion vessel: air separator, quick-action ventilating valve, safety valve, flow switch, pressure reducing valve
Investigation of heating safety fittings
Electrical heater for thermal safety fittings: temperature controller, thermal discharge safety device
Demonstration of the function of safety fittings using compressed air: thermostatic valve, safety Pressure cut-out, safety valve, temperature controller, thermal discharge safety device.
It has a voltage and current regulation and is therefore short circuit proof; it can supply DC 24V power from an additional pair of terminals. The Power Supply unit provides and monitors the power necessary for the system operation with safety extra low voltage: the integrated choke prevents the data telegrams from short circuiting on the bus line.
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For better process monitoring the evaporator and condenser are of transparent design evaporator and condenser with pipe coil
Temperature sensor, power meter, manometer in the refrigeration circuit, flow meter for hot and cold water and refrigerant
Demonstration of the processes in a refrigeration circuit
Safety valves at the evaporator and condenser
Expansion valve in the shape of a float valve
Pressure switch to protect the compressor.
Equilibrium Of A Beam Apparatus
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The Hybrid Demonstrator Trainer includes a Hybrid engine, a battery and an Electronic Control Unit, several meters showing power flow between the units, a brake switch and a potentiometer mimicking the accelerator pedal. The system can also be used to show the effects of regenerative braking. Two models are available: a bench top version and a panel mounted version. The controls the system to show students how the power is routed in a hybrid depending on the State of Charge of the Battery, and to allow them to make measurements on the engine performance under different load conditions.
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PCR reaction tube to be used on most standard Thermocyclers, RT PCR platforms, DNA Sequencers.
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Handheld, battery powered device that measures the oxygen concentrationin a flow of gas from a medical gas source or, with adapters, through a medical gas-flow device such as a ventilator or anaesthesia system, or within an environment such as oxygen hood and infant incubator.
Operational characteristics:
Handheld oxygen analyzer for continuous measurement of the oxygen concentration from a medical gas source and in an environment.
Suitable for measuring gas supply with pressure up to 50 psi (344 kPa).
Response time: ≤ 20 s.
Electrochemical cell oxygen sensing technology.
O2 resolution: 0.1 %.
O2 measurement includes the range 0.0 - 100%.
O2 accuracy: within ± 3 %.
Warm-up time: none required
Display visualizing O2 concentration, system messages and battery status.
Internal calibration timer (weekly); alerts the operator, using a calibration icon on the LCD display, to perform a unit calibration one week after previous calibration.
Low and high oxygen concentration alarm system, with flashing LED and audible indication of alarm conditions.
Replaceable oxygen sensor cell, expected sensor life >1,500,000 O2% hours over 2 years in typical applications.
Calibration and self-test mode, one point calibration 20.9% or 100%.
To hold open fatty tissue, muscle or viscera after an abdominal incision.
Static function instrument: depressor spatula.
Material: Austenitic steel (non-quenched, non-magnetic steel).
Austenitic steel composition: 16-18% chromium, 8-14% nickel, 2-3% molybdenum.
Rectangular with rounded ends.
Malleable: can be bent according to the operative field to be kept open.
Size approx. 25 x 250 mm.
Reusable.
Endotracheal tube shall meet the standards concerning the dimension, the tube, the point, the cuff and the marking.
Endotracheal tube with:
Cuff located near the distal end: Low pressure cuff, inflating system with valve and Luer tip connector.
Standard connector (ext. Ø 15mm) at the proximal end enabling the tube to be connected to the ventilation system.
Open distal end and Magill-type point with oral angle of 37.5º.
Radio opaque mark.
With Murhpy's eye.
Material: Polyvinyl chloride (PVC).
Sterile.
Disposable.
Graduations.
Size: Ø internal 8mm.
Initial sterilisation method: Ethylene oxide gas or Gamma radiation.
The switch maximum working voltage of 36V , rated current is 6A, the wiring column diameterφ4mm, effective distance is not less than 4mm.
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This instruement is composed of instrument box, float, raft,stick, plastic stick,small car, hexagonal rod,square piece, triangular piece, rectangular piece, crescent-shaped piece, fan-shaped tablets, drain cup, rubber cement, plastic ball.
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Flammable Storage Cabinet
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Bracket base, a diameter of 10MM metal rod, transparent 1M long plastic tube, a tube clip and stainless steel tweezers, a staggered clamp, evaporation of a 60MM, a porcelain crucible and a 100MM mortar, 100 piece of 1-14 PH paper, a clip hoop bracket, a plastic cylinder, a funnel, a 60MM plastic funnel, one tube brush, an asbestos net, a silicone stopper and a quantitative suction ball, a 6 hole 6 column plastic tube frame, a crucible clamp, a pair of goggles. Gloves, a plastic box and a plastic bottle, a brush, a mini electronic, a hand-held sieve, and a dropping funnel.
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The densitometers are designed and factory calibrated to measure turbidity in the range of 0.5 to 4.0 units 0.0 to >7.5 units with a small standard deviation.
A compact benchtop densitometer (suspension turbidity meter) for measuring turbidity of cell suspensions in a variety of life science applications.
If required, it can deliver a wider measurement range (up to 15.00 units), but with a greater standard deviation.
Measurement time: 1 second. Precision: ±3%.
Measurement range: 0.5 to 4.0 units, 0.0 to >7.5 units.
Ties at waist level in the back for a snug, secure fit.
A lightweight, disposable polyethylene apron that is sturdy enough to be reused.
Solar Cell Trainer Modules
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Retort Stand With Clamp
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