The stainless steel experimental arrangement forms a smooth, impermeable beach. The inclination of the beach body can be continuously adjusted. The experimental layout consists of a beach body, a mounting plate and an inclination adjustment bar with a locking bolt. The accessory is intended to enable the user to investigate the behaviour of waves on a rising beach; the unit is used in combination with the Wave Generator. In this way different steeply rising beaches are very easy to simulate.
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An electrical heating element is fitted into the block, the electrical supply provided from a variable transformer with front panel control so that the rate of heating and final temperature can be controlled as desired. Temperature Measuring Bench is designed to demonstrate a number of commonly used methods of temperature measurement, and provides the means for calibration and accuracy comparisons of the different methods. Hence, suitable measuring devices can be found for particular applications. The main unit comprises a bench mounting console which contains the hot water bath, furnace, ice bath, a digital resistance thermometer/thermocouple instrument, digital NiCr/NiA1 thermocouple instrument and power supplies. The hot water bath comprises a Dewer flask whose lid is fitted with a combined heater stirrer unit, low water cut out to provide boiling water reference at 760 mm Hg barometric pressure. Features are provided so that a number of faults commonly occurring in thermocouple systems can be demonstrated. In addition the unit may be used to provide a temperature measuring facility for use with other experiments. The furnace comprises a brass block with holes drilled to accept a glass thermometer, resistance thermometer and thermo-couple. An over temperature thermostat is set to limit the maximum temperature to 250ºC. The heater unit incorporates an adjustable thermostatic temperature control and over-temperature cut-out.
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The interior mechanical structure and function of gearbox is clearly understood under its demonstration and operation. Transparent Transmission educational training equipment is perfect teaching equipment for colleges, secondary vocational and technical schools, truck driving training and vehicle repairing field.
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Compression Flexural frame on mortar specimens, dual range:
0-15 kN for flexure tests complete with two pressure transducers used along with a digital concrete compression machine
0-250 kN for compression tests.
The board is supplied complete with a set of stackable, plug-in cables of suitable lengths and colours and with a training manual. This board includes a small oven with a heating element and three temperature sensors (thermocouple, thermistor, and thermo-resistance) with relevant interface circuits. Complete with error amplifier that can be configured for on-off or proportional control, and with a piloting circuit of the power stage with triac.
Power supply: 24Vac, 1A, 50/60Hz and 15Vdc, 100mA
Experiments:
Analysis of the operation of a proportional control
Analysis of the operation of an on-off control
V = f (t°) characteristics of a thermocouple, with relevant linearization, of the thermistor and of the thermo - resistance.
The board includes 2+2 inputs, at 4-20 mA and 0-10 V respectively, and 4 outputs at 4-20 mA/0/1-5 V, smoothly variable through potentiometer; the input indication is of bar type, the current voltage display is of digital type; through meters that can be switched. Moreover, 4 outputs at 24 Vdc/1 A are available, internally powered. Power supply: single-phase from mains. Complete with educational manual and software. The simulator is essential and indispensable for operation and understanding of the analogue modules of the PLC. The connection to the PLC can be carried out through terminals or connector.
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Disposable sterile umbilical cord clamp, safe, effective and easy to apply.
Material: Plastic (polymer).
Grooves all along the length to prevent slip of the umbilical cord and to retain it in the same position.
Finger grip to ensure safe and easy handling.
Safe security lock, with a click to indicate correct locking, to protect against accidental re-opening after clamping.
Sterile.
Single-use.
-lab-80258948.jpg "Electric Spark Timer (Multi Frequency)")
The product is composed of a host machine, hammer, edge clamp, recording tape, toner paper plate etc. Products using the power supply voltage: AC220V±22V, frequency: 50Hz±0.5Hz; product can output 20Hz, 50Hz, 100Hz high voltage pulse EDM, discharge time, the corresponding interval is 0.05s, 0.02s, 0.01s, the size of the output of the electric spark track adjustable. Quality: 50 RBI RBI continuous leak point, clear ideas, the diameter is not greater than 0.8mm. The main engine size is not less than 150 * 60 * 55mm, the size of the control point trace, the output frequency selector switch, the power switch and the indicator light are all on the main board, and can be adjusted according to the experiment.
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This instrument is composed of a double convex lens, a double concave lens, a prism,3 rods and 3 bases.
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It is used in electron cloud concept teaching of high, middle school chemistry and physics microstructure.
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Made from and coated with polyethylene
Tightly sewn seam is covered with garment fabric to reinforce seam and reduce potential for particle penetration
Elastic opening for tighter fit at wrist
Sleeved Aprons offer added chemical protection from numerous light splash situations for a variety of industries.
Provides enhanced frontal protection
30 minutes of protection in 42 chemical situations
Elastic wrists
Waist ties
Open back for wearer comfort
Neck loops with snaps
Bound seams
Yellow
10 mil thickness
Applications:
Light splash protection in petroleum refining, pulp and paper manufacturing, food processing, chemical processing and pharmaceutical manufacturing.
Features:
Elastic torsion of round bars under torque Influence of material, cross-section and clamping length on deformation
Elastic deformation of statically determinate or indeterminate beams under bending load.
Radial compressors are used to compress gases. The experimental unit provides the basic experiments to get to know the operating behaviour and the important characteristic variables of radial compressors. A protective plate placed in front of the inlet of the intake pipe prevents larger objects from being sucked in or the clogging of the intake opening. The medium is sucked in axially to the drive shaft by the rotation of the impeller and flows through the impeller rotating at high speed. By means of centrifugal force, the medium is accelerated towards the outer edge and is compressed in this manner. The air flow is adjusted by a throttle valve at the end of the delivery pipe. The microprocessor-based measuring technique is well protected in the housing. The experimental unit is fitted with sensors for pressure, temperature and speed. The flow rate is determinated via differential pressure measurement on the intake nozzle.
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The engine has one working cylinder and a transfer cylinder arranged side by side in open communication one with another but without any intervening valve mechanism. The power cylinder has a single acting piston connected to the crankshaft while the transfer cylinder has a double acting displacer piston and regenerator operated by an eccentric, the phasing of which can be altered in relation to the crankpin of the power cylinder. The cycle on which the engine is based consists of two isothermal processes and two constant volume processes (the latter being performed with the aid of a regenerator). The source of heat is provided from a low voltage electric element so that it may readily be controlled and measured. Output is measured by the simple dynamometer supplied. The optimum phase angle can be determined and rotation can be reversed. The heating element is located at one end of the transfer cylinder, which is made of pyrex glass, so that the element and the transfer piston can be clearly seen. A variety of experiments can be carried out and the effect on performance of the use of gases of different specific heat ratio can be established. By means of the transparent cylinder the temperature of the element may be seen to fall as heat is extracted from it when the engine starts from rest. Relatively little information exists concerning the detail design of small hot air engines and this engine was designed from first principles with the aid of a computer to determine the optimum proportions of the various working elements.
Applications:
Use of gases of different specific heat ratio
Study of Hot air engine
Effect on performance
Cyclic compression and expansion of air
Closed-cycle
Regenerative heat exchanger
Temperature differential.
The ceramic layer with sensor element (film resistance) canbe seen in the cut- away plastic housing.
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Power supply: 230 V 1ph 50 Hz 3 Hp
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Digital displays for air temperature, air humidity, air velocity, temperature of the cold water, power
Air conditioning system with chamber for conditioning and air technology investigations
Industrial components: fans, air-cooled water chiller, air cooler, air heater, steam humidifier
Chamber suitable for test persons to be inside
Plc air conditioning controller, manual and automatic operation.
The sampling frequency can be provided by the generator which is integrated in the module or by an external signal. Used to discontinuously sample the behaviour of a continuous control on a process.
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Construction of a pressure control loop
2 pressure tanks with safety valves
Direct pressure indication by 2 manometers
Ready-to-install compact panel assembly
Compressed air as working medium, supply via base module
Valve permits series configuration of both pressure tanks
2 valves: 1x drain, 1x vent
Copper piping
Series configuration of pressure tanks: investigation of coupled controlled system response compared Single-tank operation.
Material: Non-stretch polyester film
Lightweight flexible wrap-around blanket
Easy to unfold, strong, tear resistant
Single use, non-sterile
Wind and waterproof, and rot proof
Stays flexible in freezing temperatures
Rectangular size, approximately: 220 x 140cm
One side silver coated, reflects up to 90% of radiated heat
Dimensions:
Length, approximately: 220cm
Width, approximately: 140cm
Thickness, approximately: 12µm
