The product is composed of a glass thermometer, a scale brand and a protective sleeve. Temperature sensitive liquid: red, packed in a warm bulb and a capillary tube. Scale plate: made of thick 0.5mm aluminum plate, scale plate length 500mm, the scale of the line has two kinds of temperature indication, Celsius temperature (symbol?) and thermodynamic temperature (symbol?). Warm bubble: About 135mm, located in the lower end of the thermometer. Capillary: installed in the scale board, the capillary cross-section of the triangle, when the positive observation from the front, there is amplification. Scale range: 0 ~ 100? Scale range: 0 ~ 100 ?, thermodynamic scale of 273 ~ 373K. Each 1o line length is 4mm. Each 1o for the short term, each 5O for the middle line, each 10o for the long term. Showing the value of tolerance ±1?.
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This instrument is composed of flat lens, frame, lens base.
The size of the lens is 90mm*60mm, each set include two flat lenses and supports.
It is used to demonstrate conductivity ability of different electrolyte solutions for senior middle school students. It consists of base demo board, lamp holder, lamp beads and electrolyzer.
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Serged seams have multiple interlocking threads that are sewn around the raw edges of garment material to create a strong, stress-resistant seam
Elastic openings for tighter fit at wrist
Bound neck for lower particle shedding.
Controlled environment processed to protect against particulates and other contaminants. Garments are gamma sterilized to SAL of 10-6. Clean-processed garments offer lowest level of particle shedding portfolio.
Front zipper closure for easy donning and doffing
A-line silhouette
Raglan sleeve design for greater range of motion and comfort
Greener Choice Claims
Environmental benefits include:
Recyclable.
An oil damper makes it possible to reduce the amplitude. The components are straightforwardly and accurately placed in slots of the frame on the vibration system. The experimental set includes three different torsion bars and two different mass discs.
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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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Possible demonstrations:
Rotation of the pump plungers
Stroke of pump plungers
Function of centrifugal governor
Function of supply valves and pump
Displacement of control rod
Function of pressure valves.
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.
Auto Feed Radial Drilling Machine is designed to drill complicated shapes of work materials. The drill head motor is very powerful compared the above models and it has the capacity of 105HP for 1440 rotations per minute. The RAM diameter is 78mm and the spindle auto feed ranges between 0.05 and 0.09. The spindle speed is comparatively higher and it is interrelated to the rotations it makes per minute which is 88-2600x8. The closed grain cast iron column, making hole arm, work head and gears are fabricated using imported grinding instruments which make them stay precise for assembling. The maximum making hole radius is 1005mm.
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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.
Determination of the volumetric air flow rate by differential pressure measurement using an inclined tube manometer
Combined sensors for the air humidity and temperature before and after each stage
Effect of typical air conditioning system components on the conditioning of room air
All components can be switched on and off individually
Sensor for the pressure and temperature of the refrigerant
Software with representation in the log p-h and h-x diagram
Air conditioning system with open air duct
Air conditioning system with air cooler, steam humidifier, fan, air preheaters and reheaters.
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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Digital controller, parameterisable as a P, PI or PID controller
2 pH value sensors in transparent measuring tanks with overflow
Product tank and 2 chemicals tanks
Trainer for control engineering experiments
pH value control process, equipped with standard industrial components
Water connection with control valve and rotameter
Corrosion-resistant piping system
Hand-held pH-meter for product control
Neutralisation of a caustic solution with an acid
2 metering pumps: adjustable manually or via controller
Process variables X and Y accessible as analogue signals via lab jacks
2-channel line recorder.
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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