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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Rear Suspension with independent wheels with oscillating arms and gas shock absorber with helicodal springs.
Drum Brakes.
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.
A tool to measure the intensity and frequency spectrum of light sources used for the treatment of hyperbilirubinemia. Irradiance meter to measure the output of blue light phototherapy units for treatment of jaundice.
Suitable for conventional CFL (fluorescent), halogen blue light sources.
Suitable for fibreoptic, and LED light sources.
Designed for frequent disinfection with hospital-grade products.
Portable, handheld model.
Results are available within 5 seconds after commencement of the measurement.
Two models available, one model requires 2 x AAA alkaline batteries, another model has a built-in rechargeable lithium-ion battery.
The sensitivity is equal to or better than: 0.1 µW/cm²/nm.
Automatic zero adjustment at instrument switch-on.
Full batteries allow for 8 hours continues operation for the rechargeable version and 120 hours for the version with 2 x AAA alkaline batteries.
The spectral range for blue light is equal to or better than: 400 – 500 nm.
The spectral irradiance (in wavelength) range is equal to or better than: 0.1 – 150 µW/cm²/nm.
The unit has the following minimal features:
A self-check function.
LCD display clearly visualizing measurement results and other information.
Out of measurement range indicator.
Alarms for detector and/or system failure.
Low battery indicator.
An auto switch-off feature.
Material: Austenitic steel (non-quenched, non-magnetic steel).
Austenitic steel composition: 16-18% chromium, 8-14% nickel, 2-3% molybdenum.
To explore a surgical wound or to explore and/or dilate strictures inside a fistula.
Probe / dilator, straight.
Blunt bulbous shaped ends.
Diameter of the ends: approx. 2 mm.
Length: approx. 145 mm.
Reusable.
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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Measuring range: -52??+41?, accuracy: ±1?, resolution: 1?.
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The experiment instrument of discharge reaction is used in the experiment teaching of chemistry. It can also be used in experiments of different gas mixture, combustible dust, explosion and so on. It is used for the experiment of producing nitrogen dioxide and other gases by using air.
The output voltage is less than or equal to 20KV; the discharge distance is less than or equal to 10mm; the continuous working time: less than 15min; power consumption: less than 30W;
The products are made up of shell, circuit, electrode, indicator lamp, press switch, wire and gas bottle.
The size of the main frame is about 140 * 200 * 70mm; the shape of the gas tank is about 65 x 100mm.
Celestial Instrument Nine Planets
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Induction Flashlight
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