The water feeding can be directly connected to the mains and the water circulation is ensured by a pump rated at 0.55 kW. This electric and automatic steam generator is fitted with two separate sets of heating elements for single or double operation.
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The Mechanical Heat Pump consists of a hermetic compressor, an insulated coiled concentric tube water cooled condenser, a liquid receiver, a thermostatically controlled expansion valve and air heated evaporator.
Mechanical Heat Pump components are clearly but compactly arranged in a manner similar to that used for many domestic air-water heat pumps and all are visible from the front of the unit.
The components of the heat pump and its instrumentation are mounted on a high quality ABS plastic panel.
Mechanical Heat Pump is given up to the cooling water and the refrigerant condenses to a liquid before passing to the liquid receiver and then the expansion valve. Slightly superheated Refrigerant vapour enters the compressor from the evaporator and its pressure is increased. This brings about a rise in temperature and the hot vapour enters the water cooled condenser.
The main board can provide multi external circuit modules so as to meet all the experiment and development requirements. EDA SOPC Innovative Training Kit is a classical, high quality EDA SOPC platform for training and development.
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Polystyrene cube mould, 200 MM side one gang.
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Closed loop proportional Âintegral control of the pressure
Characteristics of the pressure sensor.
A plate heat exchanger is used to simulate a radiator. Cold water is fed through the heat exchanger as a heating load. A viewing window allows observation of the gas flame in the burner. The Training Panel Function of Gas Heater is used to illustrate the functioning of a gas combination boiler. Built-in thermometers and flow meters allow the recording of measured values to determine the power and efficiency. The unit is operated with liquid gas (propane) and is therefore independent of any pre-installed natural gas lines. The main components of the gas boiler are clearly arranged on a panel to allow better understanding. A process schematic also illustrates the function.
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The correct implementation of electronics has enabled considerable flexibility of the system with the possibility to control and adjust the hydraulic quantities automatically and continuously. The hydraulic trainer has been designed using high-tech hydraulic components presently employed in industrial automation.
The Proportional Valves Test Bench trainer allows to:
Simulate machine cycles by setting the parameters and with the possibility of adjustment and control under static and dynamic conditions.
Study the behavior of hydraulic circuits with varying hydraulic parameters and load conditions
Measure the characteristics of proportional pressure, flow and direction valves
The control board contains all the reading points for the main signals and the adjustment and calibration points of the proportional valves under static and dynamic conditions.
Eccentric Screw Pump, With Pressure Cut-Out Switch, Dry-Running Protection And Adjustable Speed, To Deliver the suspension
Supply Unit To Produce And Deliver Suspensions For Experimental Filtration Units
Stirred Tank With Lid And Stirring Machine To Prepare A Suspension
Bench top unit.
Main metallic elements made of stainless steel.
Diagram in the panel with distribution of the elements similar to the real one.
Unit mounted on an anodized aluminum frame with painted steel panel.
Four interchangeable cams:
One concave cam.
One tangent cam.
Two circular cams with different radii of lateral curvature.
The Brinell, Vickers and Rockwell Hardness Testing Unit consists of a hardness testing machine that determines the three main types of hardness (Brinell, Vickers and Rockwell) in metals, hard alloys, quenched steels, etc. The Rockwell method generates a small size imprint during the test. It employs small quenched steel balls of different diameter or cones made of diamond for the indentation.
A penetrating ball of specific diameter is used in the Brinell hardness test to press the surface of the test piece with a specific force. The unit employs balls of 2.5 mm. and 5 mm.
Besides it can also be used to measure the hardness of other materials, such as rigid plastics, bakelite, etc.
The Vickers method allows to measure the hardness of practically all metallic materials, regardless their state and thickness. It employs a square base pyramid-shaped indenter. Such indenter is applied perpendicularly to the surface whose hardness is going to be measured.
The most common method used to calculate the hardness of a metal is measuring the indentation strength with the aid of a tool of specific geometry. It consists on measuring the imprint generated when exerting a preset load on the test piece for a certain time.
Two steel beams are supplied, each having a different thickness, thus allowing the effect of beam thickness and length on deflection to be studied. Two movable vertical beam supports allow the fixing of knife-edges to their tops to create a simply supported arrangement for the study of Deflections of Beams. Each support can be moved anywhere within the working area of the Universal Frame and Stand and allows a variety of beam spans to be achieved. Apart from the large difference in second moments of area (nearly 1 to 4.5) it will be found that the stiffer beam is more accurate experimentally, while the more flexible beam exaggerates the deflected shape and is visually instructive.
Each clamp can be positioned anywhere along the working length of the beam, and can be quickly and easily removed and re-positioned. A set of calibrated test weights and load hangers creates the loads. Three load hangers supplied ensure a variety of loads can be applied to the Deflections of Beams. Each hanger is attached to the beam via beam clamps.
The vibrating mass, constrained by an externally pressurised air bearing system, has an undamped natural frequency of about 1Hz and maximum amplitude of about 20 mm so that the motion of the mass can be readily observed and recorded directly on the pen recorder (Teledeltos paper) system incorporated in the apparatus. The apparatus enables a number of experiments to be carried out on the free and forced vibration of a single degree-of-freedom system with viscous damping. Both steady state and transient conditions can be investigated. The uncontrolled damping of the vibrating mass is very small (equivalent to a damping ratio of 0.003) and the viscous damping generated by the eddy current system is continuously variable up to a damping ratio of about 1.5.
Experimental Capabilities:
The effect of viscous damping on free vibration and the determination of the damping ratio
Experimental on the variation of undamped natural frequency with vibrating mass
The response of the vibrating mass to forcing, illustrating the decay of the transient vibration and the establishment of the steady state vibration
Forced vibrations excited by rotating out-of-balance forces
Forced vibrations excited by oscillating the support.
A bench-top unit for simulating the Air Conditioning System in a Building and studying the operation and control of an air conditioning system installed in a large industrial / commercial building.
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Combined Wind And Solar Power Generation is supplied with a 500W solar simulator that allows the panel to be irradiated and generate power within the laboratory. This allows students to investigate the relative magnitude of incoming solar radiation, relative to power generated.
A small solar panel with nominal 10W output is connected to a battery charge control system. The charge controller can be connected to the supplied 12V deep cycle lead acid battery. The charge controller is also connected to a small wind turbine.
Intended use:
PCR plate to be used on most standard Thermocyclers, RT PCR platforms, DNA Sequencers.
Vaccine carrier, Extra-large, Long range
Vaccine storage capacity: 2.6 litres
With lid and carrying handle.
Cold life at +43°C without openings: 32 hours
Supplied with 8 x 0.4L icepacks as a standard.
Weight fully loaded: 6.5 Kg.
Gloves, gynaecological, latex, powder-free, size: large, sterile, single use, pair.
Long cuff gloves for gynaecological and obstetric procedures to protect both patient and medical staff from cross-contamination. Gynaecological gloves are sterile and strictly SINGLE USE.
AC adapter with multi-country plugs. Scale allows a child's weight to be measured while being held by an adult.
Electronic scale for weighing adults and children, for use up to 250kg. with 100g precision. Supplied with customer replaceable batteries, solar panel and
Measuring range 0.1 to 250 kg.
Graduation: 100 g.
Accuracy: ± 100 g over the entire range of measurement.
Mother-child mode is the default mode, alternative mother only mode can be activated by pressing an operational button.
Main on/off button has a feature to prevent accidental switching on or off and is easily accessible.
Portability: Easy to carry by a health worker in the field. Maximum weight 4.0 kg (including batteries); maximum dimensions:360 mm for length, 400 mm for width and 70 mm for height.
Taring: Taring function is automatically initiated, without pressing any operational button. Taring function is initiated once a parent holds a child after being weighed first (mother child mode).
Power saving feature automatically turns off the scale after 4-6 minutes of non-use.
The on/off button does not serve any other purpose and is encased to be protected from rain, dust and humidity.
Multipurpose Cloth.
Wrap: minimum 21 threads per cm,
Weft: minimum 18.5 threads per cm.
Color: natural, light brown or grey.
Cloth made of 100% cotton with approximate size of 1 m x 1.5 m and fabric weight of 170-180g/m2.
The product is mainly composed of a bottom plate, a small motor, large (small) belt wheel, brake disc, hydraulic cylinder, oil pipe, a support frame Product outline dimension: 300 * 200 * 150mm. Motor starting voltage: DC6-8V; brake disc diameter: diameter of 110mm. Hydraulic cylinder size: φ22×30mm
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