The module comprises a hot water tank with a transfer pump and instruments for monitoring and control. Selection of the heat exchanger is simply done by opening a valve and changing from parallel to counter flow is by switching two flexible hoses. The Multi Heat Exchanger Transparent Casing apparatus is used for studying of three types of heat exchangers namely-concentric tube, shell and tube, and plate-under parallel or counter flow conditions. The unit consists of the three heat exchangers, and a service module. The unit requires outside water supply.
Experiments:
Demonstration of batch type heat transfer for jacketed vessel.
Determination heat transfer coefficient.
Comparison of heat transfer for concentric tube, shell and tube, and plate heat exchanger.
Effects of flow rate and temperature difference.
Demonstration of heat transfer under parallel or counter flow.
The interior mechanical structure and function of car alternator can be clearly understood through its demonstration and operation. AC Dynamo Model is professional teaching equipment for colleges, secondary vocational and technical schools, car driving training and vehicle repairing field.
....
Concrete flexural machine 200 kN, high stiffness with control unit (semi-automatic model), to perform flexural tests on concrete beam specimens max. dimensions 200x200x800mm, kerbs, tiles, slabs, flat blocks, flagstones, masonry units, and any type of material having max. size 600x250 mm (lower rollers max. length 1325 mm).
....
Features:
Adjustable gibs on table precision
Posive spindle lock
Belt driven and round column
Strong rigidity power cutting and precise positioning.
Micro feed precision
12 steps speed
Milling, drilling, tapping, boring and roaming
Headstock swivels ± 360° horizontally.
Universal speed control system.
Dual-channel encoder
Built-in four-quadrant amplifier
With integrated four-quadrant display
With variable centrifugal mass
Technical Features:
Main Motor/Generator 12 V, 3000 rpm, 1.2 A, 3.2 Ncm
Load to be connected to the secondary Motor/Generator
Dual optical sensor for speed and direction
Shunt to limit and measure the current
Linear H Bridge to have full motor control.
Primary circuit with electrically heated tank, pump control valve, rotameter
Secondary circuit with fresh water connection, temperature transducer, rotameter
Experimental unit for control engineering experiments
Control valve: electromagnetic proportional valve
Digital industrial controller, freely parameterisable
Large process schematic on front panel
Temperature control with plate heat exchanger and 2 water circuits
Process variables X and Y accessible as analogue signals via lab jacks
Ball valve to generate disturbance variables in fresh water circuit
Plate heat exchanger, 30 plates.
Gauge of thread: Expressed in Decimal gauge DEC number and in the old system of thread numbering: DEC4 (1).
Type of thread: Absorbable, synthetic braided thread (PGA, polyglycolic acid).
Length: 75cm.
Type of needle:
Point: round.
Shape: curved needle, 1/2 circle.
Length: 30mm.
Sterile.
Disposable.
Initial sterilisation method:
Ethylene oxide gas.
±300μA?measurement range: -300μA?0?300μA
deviation: 5%.
Dimension (L*W*H CM): 7.5*3.5*2.5
....
It is used for chemistry teaching demonstration in middle school, and for student to understand and grasp concept of the molar volume of gas visually and scientifically.
....
Compact handheld water analysis instrument with microprocessor-driven optical system and unique optics configuration.
Features seven languages, data logging (4000 points), signal averaging, USB port
Response time: <5 seconds
Provides precise, sensitive and dependable measurements
Reads low levels for turbidity (0.05 NTU) and expands to higher ranges: 0-4000
Uses 3.7V lithium rechargeable battery and wall plug, with auto shut-off
Replacement glass test tubes available.
The interior mechanical structure and function of pliers disc brake is clearly understood under its demonstration and operation. Pliers Disc Brake Demonstrator is perfect teaching equipment for colleges, secondary vocational and technical schools, car driving training and vehicle repairing field.
....
Concrete flexural machine 150 KN motorized, 1 gauge to perform flexural tests on concrete beam specimens max. dimensions 150x150x750 (600) mm.
....
Features:
Micro feed precision
Adjustable gibs on table precision
Belt driven and round column
Strong rigidity power cutting and precise positioning.
Milling, drilling, tapping, boring and roaming.
Operation and programming of a DDC for heating and air conditioning systems
Process schematic of the simulated heating system with 2 boilers, 2 heating lines and water heating
Experimental unit from the practical series for the training of mechatronics engineers for refrigeration
Process schematics with bargraph displays and lamps for operating states of the actuators
16 potentiometers in the process schematics to adjust simulated temperatures
Process schematic of the simulated air conditioning system with selectable outer air and recirculating operation
Programmable DDC with selection and display of the operating states and error simulation
Process schematics on the front panel.
Flow measurement by paddle-wheel sensor
Generation of disturbance variables by ball valve with scale in pipe section outlet
Experimental unit for control engineering experiments
Flow control in a pipe section
Process variables X and Y accessible as analogue signals via lab jacks
Digital industrial controller, parameterisable as a P, PI or PID controller
Large process schematic on front panel
Rotameter to visualise the flow
Control valve: electric control valve.
Gauge of thread: Expressed in Decimal gauge DEC number and in the old system of thread numbering: DEC3 (2/0).
Type of thread: Non absorbable, synthetic monofilament (Nylon).
Length: 75cm.
Type of needle:
Point: triangular, conventional cutting
Shape: curved needle, 3/8 circle.
Length: approximately 30mm.
Sterile.
Disposable.
Initial sterilisation method:
Ethylene oxide gas.
Swing handle rated speed: 120r/min. The accuracy level is 10 (equivalent to 1 levels of arc length). Product material: Metal. The product is a crank insulation resistance meter. 500V, 25 - 3 type. Rated voltage: 500V + 10%, measured resistance range: 0 ~ 500M.
....
The whole product is made of ABS plastic, no-load output voltage: 6.3V Output current: 0.2A.
....
Wireless Temperature Sensor
....
