Reduced voltage starting is ideal for applications where full motor torque could tear or damage a product, such as paper or delicate fabric. Learners will study Wye-Delta power distribution, types of voltage circuits, and the operation of an autotransformer reduced voltage starter. Reduced Voltage Starting Learning System adds to the Electric Motor Control Learning System to teach methods of starting electric motors under reduced voltage, 3-phase power distribution using Delta and Wye transformer wiring configurations, and troubleshooting.
This system uses industrial quality components that stand up to frequent use and enables learners to practice with real-world components that they will encounter on the job. The Reduced Voltage Starting Learning System includes a Dual Transformer Station, featuring two control transformers, and a Power Resistor Station, featuring three 25 ohm, 100 watt resistors.
Features:
Heavy-duty components
Multimedia Curriculum Available
Teaches methods of starting electric motors under reduced voltage and 3-phase power distribution
Hands-on skills.
Compact, mobile design
Easily dismantled for inspection and cleaning purposes
Tall Form chamber straight side to diameter ratio of 3:1, conical discharge section
Advanced 2-fluid nozzle atomisation system
Data logging facility for all key operational parameters
Control & measurement of relative humidity
Spark arrester on input and enhanced safety extraction fan
Powder discharges from two points, chamber and cyclone
Low noise levels
Accessory sets are available to quickly change from drying to spray chilling
Individual inlet and exhaust fans with variable speed control.
Supplied with optional nozzle configurations for counter- and co-current atomising.
The kit is used primarily for demonstration and information purposes. It includes 10 different reaming tools and a limit plug gauge. It allows only limited scope for conducting exercises or experiments. The well-structured instructional material enhances the informational value of the kit. The kit includes a sample plate with reamed bores with which a fit can be checked. The kit is clearly laid out on a plastic tray.
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Bench top unit with anodized aluminum structure and panels of painted steel.
Diagram in the front panel with similar distribution to the elements in the real unit.
Main metallic elements of stainless steel.
Computer controlled cooling compressor:
a. Type: hermetic.
b. Power: 1 CV.
2 water condensers, capacity: 1580 W.
2 computer controlled air condensers.
High pressure switch.
Expansion valve.
Coolant accumulator.
Coolant filter to retain particles of condensate.
2 computer controlled air evaporators.
2 water evaporators, capacity: 1580 W.
4 manometers, situated at important points of the process.
13 type J temperature sensors.
Liquid separator to retain liquid particles before being directed to the compressor.
Experimental capabilities:
Determination of equivalent Moment of Inertia of shafts coupled by gears.
Experiment to determine the Moment of Inertia of rotor system mounted on bearings.
The Computerized Refrigeration Study Unit With Mass Energy Balance is an extremely easy-to-use and functional unit able to permit the study of a compression frigorific cycle and the evaluation of the cycle efficiency and the energy balance at the evaporator and at the condenser. A front panel with mimic diagram and instrumentation allows to keep the most significant thermodynamic quantities under control, so facilitating the students understanding and the teachers task. The unit is supplied with manuals which describe the components, the installation and utilization procedures as well as many exercises with experimental results. Moreover, the transducers and the dedicated software allows the data acquisition of the main thermodynamic quantities and to obtain or as a table or as a graph, the acquired values and the thermodynamic calculated quantities. The unit allow the study of the main thermodynamics quantities as a function of the thermal load at the evaporator and the calculation of the power required at the compressor shaft.
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It consists of a metal box with handles 200x200 mm by height 400 mm, painted for rust protection. To measure the consistency of fresh concrete.
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A bench-top unit for simulating the control systems installed in a building and studying the control and management of the various systems installed in a large industrial / commercial building.
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The trainer features a fully functioning Automatic Transaxle Trainer that can be manually shifted through all foreword and reverse gears. It features the popular Automatic Transaxle found on most chrysler front wheel drive cars. The Automatic Transaxle Trainer is designed to assist in educating the fundamentals of a front drive transaxle. The package includes a complete compentency based training program which instructs the student from basic operation and adjustment to complete overhaul of the transmission.
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Training Objectives:
Operating the wind turbine and the anemometer
Braking in the braking mode
Braking in the no load operation/open circuit/free spinning mode
Identification of the components
Installation and testing of the anemometer
Installation and testing of the wind turbine
Battery regulating and charging
Supplying AC load with wind power and a battery
Direct current wind energy installation
Supplying AC load with wind power stored in a battery
Complete system for wind energy.
Used for capillary blood collection
In-built mechanism to retract needle tip preventing reuse or injury.
Instant trigger launches spring-based blade.
Sterile, disposable.
Blade depth approx. 2.0mm.
Vaccine carrier, Extra Large, Long range
Vaccine storage capacity: 2.7 litres
With lid and shoulder strap.
Cold life at 43°C without openings: 46 hours 23 minutes
Supplied with 4 x 0.6L icepacks as a standard.
Weight fully loaded: 6.4 Kg
Gross volume-Freezer: 265L
Volume category: >150L
Refrigerant: R600a, 80 grams
Energy consumption, stable running (kWh/24 hours): 1.43
Equipment operating voltage and frequency: 220-240 Volt, and frequency 50Hz /60Hz, 1ph.
Operating temperature: Max rated ambient temperature: +43°C
PQS Prequalified Mains Powered Vaccine/Water-Pack Freezer for storage of vaccines at -15?C to -25?C and freezing of water packs.
Vaccine storage capacity: 61.25 L
Volume category: >/=60, <120 L
Solar radiation reference period of 3.5 kWh/m²/day and hot zone (+43°C) test temperatures.
Refrigerant: R600a, 50 grams, R600a, 30 grams, R290, 10 grams
PQS prequalified Solar direct drive combined refrigerator and freezer with no battery for storage of vaccines at +2?C to+8?C and freezing of ice packs in areas without any electricity, or where there is less than eight hours of reliable electricity over a typical day.
Operating temperature: Min and Max rated ambient temperature: +5 °C and +43°C
UIFPF: Grade A.
Compass for blackboard, 40cm long, hard white plastic, with sturdy metal butterfly screw for adjusting tightness by hand. Interchangeable suction foot and compass point in soft plastic. Holder with convenient mechanism that is adjustable for round and square chalk.
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The heart beats are typically conveyed audibly via the measuring/display unit and attached probe which is applied to the surface of the pregnant woman's abdomen. The device aids in determining foetal viability. A portable, hand-held, battery-powered device assembly consisting of a measuring and display unit and an attached probe or interchangeable probes designed to noninvasively detect foetal heart beats using ultrasound/Doppler technology.
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Suitable for professional clinical use, all patient categories neonate, infant, adult
Robust shock resistant design allow use in demanding environments
Ultra-compact pulse oximeter integrated into finger/toe clip
Measuring ranges:
SpO2 resolution: 1% or less
SpO2 accuracy within: +/-3%
SpO2 detection within the range of: 70 to 99%
Pulse rate accuracy: within: +/-3%
Pulse rate detection: 30 to 240 bpm
Pulse rate resolution: 1 bpm)
Enclosure protection IPX2 or better
Suitable for cleaning and disinfection with hospital-grade cleaning products.
Display shows SpO2, pulse rate, signal strength, sensor error or disconnect and low battery.
Power requirements two 1.5V AAA batteries
Accommodates finger/toe thicknesses 8 to 25mm directly or through the use of a separate sensor which can be connected to the device.
Spot-check of arterial blood oxygen saturation (SpO2) and heart rate(HR)
Batteries must allow at least 2500 spot-checks, calculated at 30 seconds per spot-check, or at least 21 hours of operation.
The unit is equipped with an automatic power off feature.
For grasping organs, soft or heavy tissue.
Material: Martensitic steel (quenched, magnetic steel).
Martensitic steel composition: 0.15-0.20% carbon, 12-13% chromium.
Precise adjustment of the teeth.
Hard ratchet, lockable.
Pressure force instrument: tissue grasping forceps, springy.
4 x 5 teeth.
Length: 15 cm.
Reusable.
To measure the mid upper arm circumference for rapid screening of nutritional stauts of children. Target population: Malnourished children or those at risk, aged 6-59 months.
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Self-priming centrifugal pumping set, capacity 50 Cubic Metres per hour at around 2900 RPM, at 20 metre TMH (Total Manometric Head) for 1-m suction head.
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