The air flow rate can be measured with various measuring inserts such as a nozzle/orifice, Pitot tube or iris diaphragm. The measuring inserts are connected to a multiple tube manometer using hoses; the pressure differences can then be read on the manometer. The system offers comprehensive investigations on air flow. A fan draws air through a section of pipe. The tube manometer can be tilted to increase precision and can be fixed in various positions. Open jet experiments can be performed at the fan outlet. Measuring glands are also fitted to the pipe section at evenly spaced intervals; these can be used for determining pipe friction, pressure losses or velocity profiles.
....
All functions of model and the function of acharging-pressure control.
....
The structure and function of the F-drive axle can be fully shown through its demonstration and operation. Transparent Drive Bridge educational equipment is a kind of teaching equipment designed for colleges, secondary vocational and technical schools.
....
Combinatory Logic allows the study of the following combinatory circuits:
Adders, subtractors, multipliers, code converters, multiplexers and demultiplexers. The board is composed of:
4 OR (2 input)
2 OR (3 input)
1 OR (4 input)
4 AND (2input)
4 NAND (4 input)
2 NAND TRIGGER (4 input)
4 NOR (2 input)
4 EX OR (2 input)
12 silicon diodes
8 resistances
6 inverters
2 NOR (4 input)
3 AND (3 input)
1 dual in line 16 pin socket
12 NAND (2 input)v
2 AOI (2 and 3 input)
Power supply: 5Vdc, 3W.
Cutaway models of refrigeration components
Filter/drier, L=127mm, d=52mm, 0,27kg
Ceiling fan air cooler, 440x430x130mm, 8,6kg
Thermostatic expansion valve, 79x32x65mm
Programmable Logic Controller 26 In/22 Out unit has technical and functional characteristics similar to the ones of the Programmable Logic Controller 26 In/22 Out, but it is composed of a CPU with 24 digital inputs, 2 analogue inputs and 22 relay outputs.
....
2 DC voltage sources to supply control loop components with auxiliary power
2 precision manometers
2 pressure regulators with manometers
Height-adjustable tank and scale to set low pressures
2 controllers to send and measure current signalsv
Investigation of transmission behaviour and calibration of control loop components and measuring instruments
Sending and measuring pneumatic and electrical signals
Control loop components and meters available as accessories.
Intended use: safely and efficiently contain, transport and store used sharps injection devices until final destruction, safe disposal or recycling.
Sharps safety boxes, constructed of cardboard or other materials, flat-packed, one piece with aperture and handle.
Strong Electromagnet
....
It is ideal for medical service, pharmacy, electroplating and laboratories. It is made of quality stainless steel. It takes tap water as source water to produce pure water by mode of electric heating distilling.
....
The working voltage of the instrument is AC 42V, and the inductive demonstration device is a handheld light bulb display.
....
Material Level 2 requirements for impact penetration and hydrostatic pressure. Latex free
Designed to fit properly with knitted cuffs & collar
High-quality front snap closure buttons
High quality ultra-soft & light weight SMS fabric (Weight 45 g/m2 for Jacket & Lab Coat)
Procedure SMS Jacket designed to protect health professionals and patients from cross contamination. Single use and disposable gowns made of polypropylene.
Fluid-resistant material meets AAMI Level 2
Available in a wide range of sizes and in fashionable colors
12 units in every pack.
2 dial gauges with bracket to record the horizontal and vertical deformation of the beam under load
Storage system to house the components
Experimental unit for general and unsymmetrical bending of straight beams
3 beams: i, l and u profiles
Clamping flange of beam can be clamped in the pillar free to rotate in any direction
Clamping flange with angle scale to indicate the angular position of the beam
Eccentricity of load application point adjustable.
The individual accessory modules are driven using a DC drive motor. The motor is connected to the controller. The rotational speed can be continuously and finely adjusted using a 10-turn potentiometer. The speed is regulated electronically and displayed digitally. Friction forces are measured using strain gauge transducers. The trainer enables different sliding and rolling friction cases to be investigated. The parameters of a tribological system can be assessed during this process. The drive module is the basis for experiments with a range of accessories. Snap-action fasteners for fixing the accessory modules to the frame simplify the rapid assembly and disassembly of the experiments. The unit consists of a sturdy frame made of anodised aluminium section. Rubber feet ensure that the table unit does not slip. The controller processes this data and displays it digitally.
....
This control concept allows the engine lubricating and cooling points to be supplied independently of engine load and engine speed absolutely and with asignificantly lower drive power particularly in the part-load range than wouldbe possible with a non-controlled pump. A newly developed vane-type oil pump with demand-driven quantity regulation and two map-controlled pressure stages is used in the new 6- and 8-cylinder V engines. The pump is easy to turn.
The followingare easy to recognise:
Cold-start protection valve
Valve formotor oil pump
Control piston
Adjustingring
Rotor withvane.
Use original car battery management control system, accomplishing dynamic monitoring of each single cell voltage, dynamic estimating of battery capacity, dynamic monitoring of battery temperature, dynamic displaying of all battery information, dynamic monitoring of the total loop current, dynamic alarming indication, charging real-time control etc.
Power supply main switch, BMS battery management control unit, BMS information display screen, emergency stop switch, Jog switch, 12V switching power supply, charging and discharging socket, power supply detection terminal etc. are installed on the trainer panel. The power control unit electrical signal can be directly detected on the panel, such as resistance, voltage, current and frequency etc.
The color circuit diagram and working principle diagram are printed on trainer panel, to help students to understand and analyze the working principle of the electric vehicle battery pack management system through circuit diagram and object
Trainer base adopts steel structure welding, with spray paint treatment and self-locking casters.
Centrifugal blower and PTC auxiliary heater are installed in the internal of the trainer for simulating of discharge load of battery pack during vehicle operation.
220V AC power, converts to 12V DC power supply by internal circuit transformer rectifier.
Compression testing machines motorized with control unit (semi-automatic model) to test cubes up to 200 mm side and cylinders up to dia. 250x500 mm.
....
This board is basically structured in two sections:
A hysteresis non linear simulation, dead band and threshold it includes a digital voltmeter. The board is supplied complete with a set of stackable, plug in cables of suitable lengths and colours and with a training manual.
A linear process simulation, with two summing amplifiers, three blocks with proportional, integral, derivative transfer functions, offset and drift generators.
Power supply: ± 15Vdc, 300mA
Simulation of the inputs through switches and externally through terminals. The programming software is also supplied to allow programming the PLC from the computer, if so preferred. Easy to be programmed from its own panel, without computer. It is composed (including the extension module) of 12 digital inputs and 8 relay outputs.
....
Potentiometer to actuate electro-pneumatic valves with a current signal
Pushbuttons to actuate motorised valves
Manometer and pressure regulator to adjust the working pressure for electro-pneumatic valvesv
Investigation and testing of control valves
2 pressure sensors to measure the pressure drop over the control valve
Gate valve to adjust the flow rate
Position feedback via current signal (electro-pneumatic valves) or resistance teletransmitter (motorised valves)
Water circuit with tank, pump and connections for control valves
Electromagnetic flow rate sensor.
