The specimen is put into the test chamber, clamped with suitable flanges with central screw and round gaskets. A known water pressure is applied on the specimens surface for a known time, as requested by Standard using a suitable air compressor having at least 5 bar pressure. Concrete Water Impermeability Apparatus Six Place apparatus is used to determine the depth of penetration of the water into the concrete (impermeability) under known time and pressure. The unit accepts concrete cubic, cylindrical or prismatic specimens having max. dimensions of 200x200x200 mm. A manometer checks constantly the applied water pressure. The water penetrated is measured by breaking the specimen, or by reading the water permeated through the graduated burette. The apparatus is supplied complete with graduated burettes fixed on the front panel.
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mm/inch mm/inch mm/inch mm/inch
Diameter of saw wheels: 305/12 455/18 305/12 455/18
Throat depth: 280/11 430/17 280/11 430/17
Max.cutting capacity: 150/6 254/10 150/6 254/10
Work table size: 380x380/15x15 535x585/21x23 355x380/14x15 508x560/20x22
Table tilt degree: 45 45 45 45
Width of saw wheels: 38/1 1/2 50/2 38/1 1/2 50/2
Speed of saw wheels (rpm): 500/750 500/750 500/750 500/750
Power required hp/rpm: 1.5/1440 2/1440 1.5/1440 211440
The AC Electronic Drives Learning System teaches learners how to troubleshoot electronic drive motor control circuits under realistic conditions with circuit faults that can be introduced throughout the system. AC Electronic Drives Learning System teaches industrial AC electronic motor drives that are used to provide accurate control of speed, position, and acceleration in applications such as CNC machine tools, conveyors, robots, mixers, and presses. Learners study industry-relevant skills including how to operate, install, tune, and troubleshoot three major types of AC systems: AC vector-type spindle drives, AC servo axis drives, and AC variable frequency drives. The AC Electronic Drives Learning System includes a manual fault insertion system, AC vector spindle drive panel, AC general purpose drive panel, AC servo axis drive panel, a .75 HP induction motor, and a 1 HP brushless servo motor. This factory automation training system uses industrial quality components to both standup to frequent use and to help learners become better prepared for what they will encounter on the job.
Features:
Heavy Duty Welded Steel Workstation
Industrial Standard Drives and Motors
Fault Insertion
Industrial Loads-inertial and friction
Built-in Instrumentation
Interchangeable Drive Panels
Industrial Safety Devices
Student reference guide
Multimedia curriculum available.
Self-priming pumps are able to suck in and transport air and water. This is possible because of an additional side-channel suction stage that removes the air from the intake line and creates the negative pressure that is needed to suck in the fluid. In contrast to a simple centrifugal pump, they can also be started if there is air in the intake line.
Learning Objectives And Experiments:
Determination of the system characteristics and the operating point of the pump
Checking of the necessary value of the pump
In combination with recording of pump characteristics
Determination of the pump efficiency
Determination of the power requirement and the hydraulic power.
This laboratory is designed for the study of DiscontinuousAutomatic Control systems where the controller is composed of an element withdiscontinuous intervention. This trainer has a modular structure andit consists of panels installed on a vertical frame. It is suppliedwith a theoretical and practical manual. A discontinuous controller is characterized by anoutput having two or more fixed states and its value is switched among thesestates according to the input value. The modularity of this systemcan give the students a direct and immediate approach to the topics, offeringthe opportunity to study various subjects, performing several experiments asfollowing:
Two position controllers, three range controllers
Sampling acquisition techniques
The three range controller in a 2nd order process
The two position controller in a 1st order process
The two position controller with elastic feedback in a 2ndorder process
The two position controller with delayed feedback in a 2ndorder process
The sampling control in a 4th order process.
Chambered bottom made of stainless steel as heat exchanger for connection to
Sensor for measuring the conductivity and temperature via
Reactor with stirrer
Temperature control in the reactor via
Discontinuous stirred tank reactor for connection to supply unit.
This Pressure Control Apparatus is designed to demonstrate automatic control of the pressure within a vessel. The present invention relates to an automatic pneumatic pressure control apparatus for use as an electropneumatic transducer or a pneumatic pressure actuator employing such an electropneumatic transducer, and a method of controlling such an automatic pneumatic pressure control apparatus. The unit enables students to investigate the effects of changing the parameters of the control algorithm (proportional band, integral action and derivative time) on the control capability of the system.
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The set is supplied in plastics box. Two parts beams with scale for bending moment and two parts beam with scale for shear force test with beam supports are used. Bending moment and shear force are calculated from spring balance readings, location of loads and weights. Crank And Toggle Set is part of Mechanical Engineering Test Series which provides sets for various experiments on Basic Panel (separately supplied) to study or demonstrate specific engineering principles. Loading is by load hangers and weights.
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The Compressors Test Bench is extremely versatile: in fact, it has been designed to allow to choose and mount compressors of different size and type, coupled to different electric motors, selected by the user. The Compressors Test Bench allows to experimentally characterize a wide range of air compressors, in a work field from 0 to 500 Nm3/h as regards the flow rate and from 0 to 10 bar as regards the pressure. The frame of Compressors Test Bench is very strong and has to be fixed to the floor; the bench is completely made of corrosion-proof materials. The high precision of the sensors installed in the Test Bench allows to perform accurate and trustable research experiments within the whole work field. An user manual is supplied with the equipment. The electric control and command board allows to operate in manual mode, by personal computer or by external board.
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Experiments:
Comparison of different frameworks Operating Conditions
Operating environment: Laboratory
Study of Bows Notation, strains, stresses, forces and deflections in various frameworks, including a Warren girder and roof truss
Operating relative humidity range: 80% at temperatures < 31ºC decreasing linearly to 50% at 40ºC
Storage temperature range: 25ºC to +55ºC (when packed for transport)
Operating temperature range: +5ºC to +40ºC.
Tensile Modulus Of Elasticity is to be used with Universal Structural Frame. The rod is mounted between two gripping heads and a load of upto 3 kN is applied by means of a screw with turning wheel. Elongation of the gauge length is measured by two dial indicators. Tensile Modulus Of Elasticity equipment is used for studying the modulus of elasticity of materials in the form of rods. The load is measured by a force indicator.
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The Machinary Diagnostic System permits vibration measurement exercises whereby readings can be taken from different points on the apparatus and at different motor speeds. The Machinary Diagnostic System can be used to simulate certain types of damage and investigate its effects on the vibration spectrum. Balancing of rigid rotors and alignment of shafts can also be practiced. Users can also complete exercises from purposefully induced faults (measurement of vibration displacement, velocity and acceleration in the time/frequency range).
A speed controller and tachometer display are supplied to allow the accurate controlling and displaying of the speed of the motor. The base frame, with integral grooves allows the elements of the apparatus to be moved and adjusted into position accurately. The Machinary Diagnostic System allows the quick and easy mounting of the key component parts. The key components of the base unit are the mechanical elements (i.e. motor, bearing blocks and shaft with rotors).
Experimental Capabilities:
Transducers and measuring devices
Fundamentals of measurement of shaft and bearing vibrations
Introduction to vibration measurement methods on rotating Machinery Systems.
Fundamentals of vibration measurement methods.
The Training Pilot Plant For Balance Of Ventilation Networks allows realistic field evaluation of parameters such as the static pressure and air speeds at different points in the system.
Training Pilot Plant for Balance of Ventilation Networks, for the advanced study of the operation of a modern ventilation, thermo-ventilation and air conditioning installation.
This will allow students to diagnose problems with the airflow and pressure losses in a ventilation or air conditioning network.
The Training Pilot Plant For Balance Of Ventilation Networks has been designed to allow the students to evaluate the correct ventilation network balance and how unbalanced systems can cause incorrect heating or ventilation in any of the outlet points of the system.
Experiments:
Study of the components of a ventilation system including:
Connection of the different system components and verification of the system operation
Field measurements of the static, dynamic and total pressures
Calibration dampers
Supply grilles
Fan
Ducts
Exhaust grilles.
Field measurements of the air speed at different points in the system
Calibration of dampers to ensure consistent pre-set values of room air flow are achieved
Localised and distributed pressure losses
Loss coefficients.
The unit is designed to be used on Hydraulics Bench which allows the volumetric measuring tank to be used for flow measurement. Alternatively the unit can be used on a laboratory bench with water supplied from a tap and with the unit discharging to a drain. Osborne Reynolds Unit comprises a reentrant bell mouthed glass experimental tube of 16 mm bore and approximately 650 mm long mounted horizontally in a 103 mm bore perspex tube. Flow control is achieved by an angled seat valve at exit from the apparatus. A dye injector probe and adjustable head dye reservoir are provided to introduce a dye filament for the observation of laminar, and turbulent flow regimes, and the transition between them. An adjustable height constant head inlet tank supplies water to the annulus so that the water flows along the annulus through a baffle into a reverse flow stilling chamber, thus providing a uniform flow with very little turbulence into the bell mouth entry of the experimental tube.
Experimental Capability:
Determination of the lower and upper Critical Velocities and Reynolds Number.
Demonstration of laminar or streamline flow, turbulent flow and the transition between these two regimes by observation of injected dye line.
The Transformer Trainer module fully examines single phase andthree-phase power and distribution transformers.
The fully instrumentedunit includes:
One three-phase educational transformer
Three single-phase educational transformers with tertiarywindings
One three-phase delta-star transformer
The module includes a second fixed ratio delta-star transformer for extraexperiments. An adjustable autotransformer allows lower voltage experiments. All windings of the educational transformers connect to colour-codedshrouded sockets on the control panel. The control panel includes all the analogue and digital meters andtransducers needed to measure electrical voltage, current and power for alltransformer tests. The educational transformers work at onevolt each turn, so the no-load output voltages are the same as the number ofsecondary turns. Also included are selectable resistive, inductive andcapacitive loads, which can connect in parallel, series, delta or star connection.
A throttle valve makes it possible to regulate the water flow rate. A series of park-away threaded holes along the bottom of the channel (spaced 250 mm apart) allows to fit the optional models. A guide is assembled on the sides of the channel to carry the accessories and the instruments necessary for the tests. The bottom of the channel can be tilted by up to 1.5 degrees, so as to simulate the normal inclinations of the real channels; it is also possible to obtain a slight negative slope. The centrifugal pump draws the water from the collection tank and transfers it to the still tank, where a manually operated vertical gate, which is assembled before the testing section, allows to vary the height of the hydraulic load. The unit is supplied with manuals that describe each component of the system, installation and utilization procedures, and gives many exercises.
The series of channels has been designed by to study the hydrodynamic phenomena of the open surface streams in variable inclination channels. The following versions are available:
Open Surface Tilting Flow Channel 5 m long
Open Surface Tilting Flow Channel 3 m long
Balances can be divided into two main groups: internal and external. The group names are derived from their location relative to the test model and wind tunnel test section internal balances reside inside a test model, while external balances reside outside the test section. During the early years of wind tunnel testing, Forces and Moments were literally measured through pan-type balances. Internal Force/Moment balances are almost universally used for measurements in supersonic and transonic tunnels. However, they are also becoming popular in subsonic tunnels. Although technology has advanced dramatically since those early days, the term balance is still applied to the devices used for Force and Moment measurements today.
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Blowby Meter is an ideal solution to the problem of easily measuring the gas flow out of engine crankcases as it can be incorporated into engine ventilation systems in a low intrusive manner. Engine deterioration may be assessed in several ways, one of which is to measure cylinder gas loss; the accumulation of crankcase gas is a result of this loss, and it provides an indication of wear in the valve stems, valve guides, piston rings, and cylinder bores.
Features:
Continuous Flow Measurements
Vortex Shedding Technology
Very Low Pressure Drop (< 0.25 mbar)
Flow Range 4~5650 l/min
Small Physical Size
3 1/2 Digit LCD Display
Excellent at Low Flows
Linearising Electronics
High Flow Alarm
Analogue Output (0-2V or 0-10V, selectable)
Pulse Train Output
40 : 1 turndown ratio.
The unit consists of axial flow propeller turbine with a dynamometer, a water storage tank, a low head high flow centrifugal pump, an interface box and input power sensors and software. The turbine fixed guide vanes direct water to the runner. The interface box includes power supply to the sensors and motor, and a computer interface unit. Mini Axial Flow Propeler Turbine Demonstration Unit is a self contained mini axial flow propeller turbine for studying the turbine characteristics with data analysis by computer. It also provides interface ports to sensors and computer. The unit is to be used with a computer.
Experiments:
Torque vs speed at various heads and flow rates.
Efficiency vs speed for a given head and flow rate.
Racing characteristics.
Power output vs speed for various heads and flow rates.
This is the exact unit as designed for Truck and used in their N. Heavy Dun Starting And Charging Designed to incorporate live actual components, providing "real world" electrical measurement values.
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