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INVITATION FOR QUOTATION

TEQIP‐III/2018/ctem/Shopping/23 27‐Feb‐2018

To,

Sub: Invitation for Quotations for supply of Goods

Dear Sir,

1. You are invited to submit your most competitive quotation for the following goods with item wise detailed specifications given at Annexure I,

Sr. No

Brief Description Quantity Delivery Period(In days)

Place of Delivery

Installation Requirement (if any)

1 PLC trainer: motor control and servo motor control application

1 90 CTAE, Udaipur

As per Satisfaction on Deptt. of Mech. Engg.

2 Trainer module for the study of sensors

1 90 CTAE, Udaipur

As per Satisfaction on Deptt. of Mech. Engg.

2. Government of India has received a credit from the International Development Association (IDA)

towards the cost of the Technical Education Quality Improvement Programme [TEQIP]‐Phase III

Project and intends to apply part of the proceeds of this credit to eligible payments under the

contract for which this invitation for quotations is issued.

3. Quotation,

3.1 The contract shall be for the full quantity as described above.

3.2 Corrections, if any, shall be made by crossing out, initialing, dating and re writing.

3.3 All duties and other levies payable by the supplier under the contract shall be included in

the unit price.

3.4 Applicable taxes shall be quoted separately for all items.

3.5 The prices quoted by the bidder shall be fixed for the duration of the contract and shall not

be subject to adjustment on any account.

3.6 The Prices should be quoted in Indian Rupees only.

4. Each bidder shall submit only one quotation.

5. Quotation shall remain valid for a period not less than 55 days after the last date of quotation

submission.

6. Evaluation of Quotations,

The Purchaser will evaluate and compare the quotations determined to be substantially

responsive i.e. which

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6.1 are properly signed ; and

6.2 Confirm to the terms and conditions, and specifications.

7. The Quotations would be evaluated for all items together.

8. Award of contract:

The Purchaser will award the contract to the bidder whose quotation has been determined to be

substantially responsive and who has offered the lowest evaluated quotation price.

8.1 Notwithstanding the above, the Purchaser reserves the right to accept or reject any

quotations and to cancel the bidding process and reject all quotations at any time prior to

the award of contract.

8.2 The bidder whose bid is accepted will be notified of the award of contract by the Purchaser

prior to expiration of the quotation validity period. The terms of the accepted offer shall be

incorporated in the purchase order.

9. Payment shall be made in Indian Rupees as follows:

Delivery, Installation Delivery and Installation Satisfactory Acceptance ‐ 100% of total cost

10. All supplied items are under warranty of 36 months from the date of successful acceptance of

items.

11. You are requested to provide your offer latest by 17:00 hours on or before 19‐Mar‐2018.

12. Detailed specifications of the items are at Annexure I.

13. Training Clause (if any) As per satisfaction of Department of Mech. Engg.

14. Testing/Installation Clause (if any) As per satisfaction of Department of Mech. Engg.

15. Information brochures/ Product catalogue, if any must be accompanied with the quotation clearly

indicating the model quoted for.

16. The successful bidder shall furnish the Performance Security (5% of the contract value) to the

Purchaser in the form of bank guarantee after the receipt of acceptance letter. The Performance

Security shall be valid up to 28 days from the date of expiry of warranty period.

17. If the supplier fails to deliver the desired goods within period specified in Purchase order, liquidated

damages will be applicable (applicable rate is 0.07% per week and maximum deduction is 10% of

the contract price).

18. “Teqip Package CTAE/ME/P1 Date of opening 20.03.2018” should be written on the top of sealed

envelope.

19. Sealed quotation to be submitted/ delivered at the address mentioned below,

Dean, College of Technology, University Campus, Udaipur 313001

20. We look forward to receiving your quotation and thank you for your interest in this project.

(Authorized Signatory)

(Dr. S.S. Rathore)

DEAN, CTAE, UDAIPUR

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Annexure I

Sr. No

Item Name Specifications

1 PLC trainer:

motor

control and

servo motor

control

application

The PLC trainer should have following features: General feature: Open platform to explore wide PLC applications and Freedom to select PLC of different makes. Din rail mounting for PLC, PC based Ladder programming, Extremely easy and student friendly software to develop different programs, High execution speed, Compact tabletop ergonomic design, Ready Experimental details PLC trainer module should have its own cabinet and Robust Construction with suitable size to be portable, Industrial look & feel. Trainer panel should have following features ‐

Supply voltage (Single‐Phase): 100‐240Vac, PH+N+G.

Single‐Phase supply hose connecting plug.

20 Digital Signal Generators:

Toggle Switches = 10 No.

Push buttons = 10 No.

Every input should have attached Yellow/Red LED.

Every output should have attached Green LED.

Output voltage levels of 0Vdc to 24Vdc.

6 Analog Signal Generators: 6 Potentiometers.

Output voltage range from ‐10V to +10V.

Relay card : 1 No. Buzzer : 1 No. Pilot Lamp : 1 No. Operating Temp. : -10°C to 50°C , 80 % RH Product Tutorial Included Accessories: Computer Interfacing cable = 01 No. Mains cord

= 01 No.

Domestic Power Supply:

Supply voltage (Single‐Phase): PH+N+G.

Power supply requirement: 220V AC, 50Hz.

ON‐OFF removable key.

Single‐Phase supply hose connecting plug. PLC CPU Module:

Supply voltage (Single‐Phase): 100‐240Vac, PH+N+G.

Overcurrent protection with fuse.

High processing speed: between 5ns and 15 ns per basic instruction (step).

Programming capacity: 120k basic instructions (step) or better.

Data logging capacity: 256k words or better.

Independent memory for comments: > 2 MB.

Supports SDHC type generic memory cards up to 32GB.

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Expansion module for digital inputs: 16 digital inputs with allowable input range from 0V to 12 V.

Expansion module for digital outputs: 16 relay type digital outputs with voltage level of 24Vdc.

Expansion unit for analog inputs:

No. of analog inputs: 4 Nos.

Input voltage range from ‐10V to +10V.

Expansion unit for analog outputs:

No. of analog outputs: 4 Nos.

Output voltage range from ‐10V to +10V.

Connector for the analog input and output signals.

Connector to the Ethernet switch module.

4 Ports Ethernet Switch Module: Work as Ethernet interconnection point.

Web server function:

HTML web server included in the PLC and showing up to 16 sessions at the same time.

Compatible with most common search engines.

Connectors for the digital input and output signals.

Connector to the Ethernet switch module PLC Programming Software:

Programming software should be compatible with Windows 10 operating systems.

Five programming languages: Ladder diagrams (LD), Structured text (ST), Instruction list (IL), Sequential function chart (SFC) and Function block diagram (FBD).

Remote programming, service and diagnosis.

Minimum size of program.

Powerful debugging and monitoring tools.

Supports functions created by the user and function blocks.

Saves project files in the PLC.

Examples and quick tutorial included.

Signal Conditioning module for PLC: Differential amplifier: 2 gain, Non inverting amplifier: 3 gain, Switching circuit = Logic 0:0V, Logic 1:24V, Frequency to voltage converter: Low frequency 0 to 400 Hz = 0 to 4.5V, High frequency: 0 to 5KHz = 0 to 4.5V, Thermocouple amplifier = 10 gain. Interfacing module (for demonstration purpose): Conveyor Control by PLC Should contain at least following features or more: Conveyor 2 feet length with variable speed motor to handle at least 1.0 kg mass, counter sensors = 02 Nos. (one at starting point and one at end point of conveyor), parts to be conveyed on conveyor = 20 pieces, hopper with manual control gate to feed small parts, robust and ergonomically designed self‐contained table mounted plat form.

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Control panel: Panel for input and output connection with PLC, ON‐OFF removable key, emergency stop switch, LED signal for conveyor working, required accessories for power supply with connection cable. Computer system Laptop for PLC trainer: Processor: Intel Core i7‐7500U 7th Gen processor, 3.5GHz, RAM size: 8GB or better, Graphics Card: 4GB or better; Hard disk drive: 1TB SATA or higher, with DVD RW drive; Colour screen size = 15.6 inch; Operating System: Windows 10 Pro, 64bit English; Wired Key board + Optical Mouse. Special Terms & Conditions 1. The PLC trainer should be quoted as one package including all the items

mentioned in specifications. 2. Prices: Prices should be quoted in Indian rupees (INR) and should be FOR

to CTAE, Udaipur. 3. Sales Tax: Extra as GST is applicable. 4. The price quoted should include the charges for installation,

commissioning and training for operation and required programming for the PLC trainer.

5. Payment: The payment will be made online after successful commissioning of the item and satisfactory working.

6. Delivery period: Approx. 90 days from the date of receipt of technically & commercially Clear Purchase Order.

7. Warranty: 36 months warranty from the date of commissioning. 8. Manuals: Each module should have its own manual. The manuals should

be supplied with the Required Services, Assembly and Installation, Starting‐up, Safety, Maintenance & Practices Manuals.

9. Quality certificates: ISO9000 and ISO14000. 10. Pre‐delivery Inspection may be required at the manufacturer’s site for

verification of the agreed specifications for the package.

2 Trainer

module for

the study of

sensors

This package the ‘Trainer module for the study of sensors’ contains the following items:

1. Computer Controlled Base Unit 2. Temperature Test Module 3. Pressure Test Module 4. Pneumatic Test Module 5. Flow Test Module 6. Liquid Level Test Module 7. Light Test Module 8. Proximity Test Module 9. Tachometer Test Module

The package should be considered as one unit containing all above modules. These test modules should operate independently one of another. 1. Computer Controlled Base Unit Specifications: This unit should be common for the different test modules including flow, light, liquid level, pneumatic, pressure, proximity, tachometer/speed and temperature test modules (i.e., as mentioned in the package), and should work with one or several modules. This should be a complete unit designed to provide signal conditioning for many sensors and transducers output signals that must be conditioned before a data acquisition system can effectively and

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accurately acquire the signal. These circuits consist of differential and instrumentation amplifiers, filters, current to voltage and frequency to voltage converters, etc., developed for transducers such as potentiometers, RTD's, thermocouples, strain gauge bridges, etc. It must also include a PID controller, industrial controller, DC Dimer and other elements that can be used to introduce students the concepts about instrumentation and process control. The base unit should be portable / have provision to connect the sensors connected on various test modules and with power supplies through 2 mm terminals located in the front panel of each test module. The Computer Controlled System is formed by:

Control interface is integrated into the box of the Base Unit (BSPC).

Data acquisition board to be installed in a computer slot.

Computer Control Software. Following are minimum technical specifications:

All elements are included in a metallic box of industrial grade.

Base unit should consist of AC/DC amplifiers, Current/Power amplifiers, integrators & differential amplifiers and Instrumentation/summing amplifier.

Must also consist of buffers, filters, integrators, differentiators, Oscillators, Rectifiers & switches. Also must have inbuilt AC/DC power supply, signal generators & potentiometer.

Kit control circuit should have Independent PID parameters adjustments, Relays & Dimmer

Measuring elements: LED, bar graph, Counter/Timer & Analogue meter.

2 analogue outputs & 4 analogue inputs for sensor interface.

Base unit must have signal convertors from Voltage to current, current to voltage, frequency to voltage and voltage to frequency.

PC interface must be provided with the base unit.

Approx. dimensions: 430 x 450 x 470 mm. & weight: 30kg.

Power supply requirement: 220V/50Hz.

Power supply adopter and cables.

Standard cables and accessories for normal operation.

The computer control software should be provided in DVD/Pen drive.

Product manuals supplied should contain required Services, Assembly and Installation, Interface and Software, Starting‐up, Safety, Maintenance & Practices Manuals.

Manufacturer of the kit must possess following quality certification: ISO9000, ISO 14000 and ECO‐Management and Audit Scheme.

Minimum warranty to be required is 5 years.

Pre‐delivery Inspection may be required at the manufacturer’s site. 2. Temperature Test Module Specifications: The Temperature Test Module should be designed to teach the use and applications of sensors of temperature as a measure, and its control. It should have a half‐open space, where interior space should be heated by two lamps. Temperature should be around 40ºC in the lower part and around 80ºC in the upper part. To measure the temperatures there are different type of sensors placed in different positions that are at different distances from the warming

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source, in order to get higher or lower temperatures. Among the sensors there are thermostat sensors. The thermostat sensors contain a contact that is closed at a precise temperature, which can be directly chosen with a numbered dial placed on the thermostat. There is also a switch sensor and thermocouple. On the other hand, in the external casing there should be a "magnetic block" where a "Curie effect" temperature control is done. Sensors:

Bimetallic switch sensor: It is placed at the central part of the module, very close to one of the heater sources, in order to allow the temperature to rise quickly even over the switching temperature.

Adjustable bimetallic thermostat: It is placed in the central part of the module at the lowest position, because the temperatures at which it works must be not too high. It is based, just as the one before, on the combination of two different metals, but with the difference that in this one we can chose the cut‐off temperature.

Relay: The relay enables to turn on and off in the magnetic block, both the incandescent lamp and the heater resistor that rise the temperature in the magnetic block.

Magnetic block: It is in the external part of the module. It has a ferrite with an empty cylindrical form through which goes a resistor that is going to heat it at high temperatures. It also has a gravity switch that closes two sockets.

Capillary thermostat: The capillary is placed in the upper part on the left end of the module, near another lamp, since the temperatures reached will be high. The thermostat works with a fluid placed at 90 mm. in the capillary tube. The switch temperature is adjustable.

Thermocouples. The detailed specifications of the system are as follow:

Painted steel box. Approx. dimensions: 405 x 300 x 400 mm & weight: 5 kg.


Connection diagrams for each transducer are represented graphically.

Bimetallic switch sensor: Bimetallic contact thermal switch. Opening temperature: 50°C. Closing temperatures: 30°C. Configuration: N.C. contact.

Adjustable bimetallic thermostat: With heater resistor that allows minimizing the differential cycles and preventing over peaks. Temperature range: 0°C to 30°C. N. C. contact.

Magnetic Block: Inside of an external case. Composed of a ferrite pipe, with a heater element inside of them.

Incandescent lamp.

Relay AC: It allows to turn ON and OFF the incandescent lamp placed over the temperature sensors. Voltage and current (nominal): 250V‐10A. N.O., Contact Switching voltage: 12 V.

Capillary thermostat: Temperature range: 0ºC‐90ºC. Max. bulb temperature: 150ºC. Socket current: 15A, 250V AC. N.C. contact.

Thermocouples: 03 number of Cromel‐Alumel thermocouples type‐K. One of them is placed near the capillary thermostat and the bimetallic sensor, another on the adjustable bimetallic thermostat and the third one inside the magnetic collection. Each one of them is used to

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measure the temperature that each one of the sensor are controlling. Temperature range: ‐50 ºC to 250 ºC.

Sensor connections with the Base Unit and with power supplies are through 2 mm terminals located in the front panel of the Test Module.

Manuals: It is supplied with the following manuals: Required Services, Assembly and Installation, Starting‐up, Safety, Maintenance & Practices Manuals.

3. Pressure Test Module Specifications: The Pressure Test Module should be designed to teach the use and applications of this kind of sensors measurement systems. It shows the different pressure measurement techniques. There need to be a pressure chamber with several sensors adjusted to measure the pressure changes inside the chamber. There need to be a relay which activates a compressor that gives the system pressure. Compressor and a Manometer connected next to the regulating valve with which the pressure chamber maximum pressure can be adjusted. There need to be two diaphragms where displacement sensors are connected and some strain gauges that detect the diaphragm distortion as the pressure rises. It must have following Sensors:

Linear positioning sensor (potentiometer).

LVDT sensor.

Differential pressure sensor with hole board system.

Strain gauges.

Manometric pressure sensor.

Absolute pressure sensor. The detailed specifications of the system are as follow:

Painted steel box. Approx. dimensions: 405 x 300 x 350 mm. & weight: 7.5kg.



Linear positioning sensor (Potentiometer): Resistor range: 500 Ω to 5KΩ. Operation force: 200‐750g.

LVDT sensor: Sensibility: 780mV/mm. Power voltage: 5 to 12Vdc. Total path: 2.5mm.

Differential pressure sensor: Measurement range: 0 to 30 psi. Sensibility: 3.33mV/psi. Overpressure: 60 psi. Power supply range: 10 to 16 Vdc.

Two Strain gauges mounted in a Wheatstone bridge: Nominal resistor: 25ºC: 120Ω. Gauge factor: 2.0 to 2.1 typical. Nominal resistor

tolerance: 0.5%. Manometric pressure sensor: Measurement range: 0 to 30 psi.

Sensitivity: (3.0 to 4.0)mV/psi. Overpressure: 60 psi. Power supply range: 10 to 16 Vdc.

Absolute pressure sensor: Measurement range: 2 to 30 psi. Sensitivity: ‐11mV/psi. Overpressure: 60 psi. Power supply range: 10 to 12 Vdc.

Two Air Compressor (located inside the steel box): Air flow: 10 L/min. Pressure: 1.83kg/cm. Power supply: 220V, 50/60Hz.

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Sensor connections with the Base Unit and with power supplies are through 2 mm. terminals located in the front panel of the Test Module.


4. Pneumatic Test Module Specifications: The Pneumatics Test Module should be designed to teach techniques of control and handling of a pneumatic piston. All connections of the different parts of mechanisms will have output through a group of 2 mm. terminals. They are placed in the front panel of the test module with a diagram representing their functions. A double‐action pneumatic piston is used to move a platform placed on the upper part of the piston axle. The control of the air inlet to the piston is carried out using two proportional electronic valves. There is a differential pressure sensor is connected between both pneumatic piston air inlets. This way the pressure difference between both inlets can be obtained any time. At one of the air inlets to the piston there is connected in series a pneumatic switch that works as air output in the circuit. An compressor, located inside the steel box, must provide the compressed air needed for this unit to operate. A LVDT sensor will indicate the displacement of the pneumatic piston axle. Elements in the test module are:

Two Proportional valves.

Differential pressure sensor.

Pneumatic switch (2 positions).

Linear displacement sensor (LVDT).

Regulating filter with manometer.

Manometer indicator of pressure in proportional valve 1.

Manometer indicator of pressure in proportional valve 2.

Air compressor (located inside the steel box). The detailed specifications of the system are as follow:

Painted steel box. Approx. dimensions: 405 x 300 x 350 mm. & weight: 7 kg.

Power supply requirement: 220V AC/50Hz.


Proportional valves (1 and 2): Nominal voltage: 24Vdc. Pressure range: 8 bar maximum, 0 to 6 bar control. Linearity: 1% full scale.

Differential pressure sensor: Measurement range: 0 to 30 psi. Sensitivity: (3.0 to 4.0)mV/psi. Power‐supply range: 10 to 16 Vdc.

Pneumatic switch: Activation: 20 to 24Vdc. Positions: 2. Maximum pressure: 6 bars.

LVDT Sensor: Power‐supply voltage: 9 to 24Vdc. Sensitivity: 60mV/mm/10Vdc.

3 Regulation filter: Manual drainage. Maximum input pressure: 8 bars. Flux: 14.5 dm /s.

Air compressor: 2 Air flow: 10 L/min. Pressure: 1.83 kg/cm.


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5. Flow Test Module Specifications: The objective of this module is to show techniques to measure the changeable fluids flow. The module should be made up of two tanks assembled on a structure. In one of them there should be a pumping system that allows to pump the water from the reserve tank, using a measurement transducer system, and to return it to the main tank. The pump should be capable for supply of variable discharge rate / volume flow rate by changing control knob placed on the front panel. This module should contain: Flow switch, Optical flow sensor / turbine flow, underwater pump, Pressure level sensor, Differential pressure sensor, Changeable flow meter, V‐narrowing. All the connections from the different transducers and from the pumping system are made using a group of 2 mm terminals placed on the front panel of the test module with drawings describing their functions. The detailed specifications of the system are as follow:

Painted steel box. Connection diagrams for each transducer should be represented graphically.

Approx. dimensions: 405 x 300 x 400 mm. & weight: 10 kg.


Flow switch: Monitors the flow and closes an electric circuit. Contact form: N/O. Switching voltage AC: 240Vac. Switching voltage DC: 120Vdc.

Optical flow sensor / turbine flow sensor.

Power supply: 5Vdc. Measurement range: 0.25 to 6.5 L/min. K factor: 4600 pulses/liter.

Underwater pump: The variation in the pump power supply voltage should enable to change the water volume in the test module. Power supply: 12 Vdc.

Water Pressure level sensor: Pressure sensor should sense water pressure in the tank in order to calculate the liquid level in the tank. Pressure range: 0 to 1 psi. Sensitivity: (15 to 17) mV/psi. Power supply: 10‐16 Vdc.

Differential pressure sensor (Hole board system): This sensor is connected to a hole‐board system to measure the pressure difference caused by the volume narrowing of the conduct through which the water flows. On this way, with the measurement of the pressure difference between the hole board water output and input, it is possible to calculate the water volume that crosses the board.

Measurement range: 0 to 16 psi. Sensitivity: 1.5 mV/psi. Power supply: 10‐16 Vdc.

Changeable flow meter: Using a small floating buoy that is inside the tube calibrated in liter/minute, it can be read the volume measure flowing through the pipe.

Range: 0 – 2 L/min.

V narrowing: The connection between the main and the secondary tank, a dam, includes a "V" narrowing. The altitude of the water level

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above the dam bottom is a very precise measure of the flow relation. The ruler fixed on the right end of the tank will show this height.

Main and secondary tanks.

Sensor connections with the Base Unit and with power supplies are through 2 mm terminals located in the front panel of the Test Module.


6. Liquid Level Test Module Specifications: The Liquid Level Test Module Should be designed to teach the use and applications of level sensors and their measurement systems. This module teaches techniques to measure and control the liquid level in a tank. In this there is a two tanks system whose purpose is to pump the liquid (usually water) between both tanks. Both tanks have sensors of different technology so they can be used as liquid storage tanks or to study the level measurement sensors. Each tank should have an individual pump. Sensors:

Capacitive level sensor

Level sensor by pressure

Float level switches with potentiometer

Conductivity level sensor (Electrodes)

Magnetic float level sensor

Optical level sensor All the connections of the different sensors and pump systems are done using the 2 mm terminals available on the test module front panel, with diagrams describing their functions. The detailed specifications of the system are as follow:

Painted steel box. Approx. dimensions: 405 x 300 x 380 mm & Approx. weight: 10 kg.


Connection diagrams for each transducer should be represented graphically.

Water tanks = 02 (min 2 litre each).

Capacitive level sensor:

Level sensor immersed in the tank. Power supply: 12‐35 Vdc. Output: 4‐20 mAdc.

Water Level sensor by pressure: It is a differential pressure sensor that measures the pressure practiced by the water compared to the atmospheric pressure to measure the water level. Pressure range: 0‐1psi. Sensibility: 16.7mV/psi. Excitation Voltage: 10‐16 Vdc.

Float level switches with potentiometer: It is a potentiometer fixed to a float arm that will vary its position depending to the water level. This system complements itself with two end and beginning path switches respectively. Switching voltage contacts: 250 Vac/125 Vdc.

Conductivity level sensor: This sensor works with two electrodes immersed in one of the tanks. As the water level rises and covers the electrodes its resistance will decrease until it arrives to KΩ unit values;

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as long as the water does not touch the electrodes, the resistance between them will be very big and will behave like an open circuit.

Magnetic float level sensor: Sensor formed by a small float that has inside a magnetic element, the float base has a Hall effect element that detects when the float has gone up due to the effect of the water. Switching voltage: 240Vac, 120Vdc.

Optical level sensor: It is a photodiode and phototransistor, which in presence of water changes its refraction properties and make the output state approximately change from 3Vdc to 0Vdc. Power supply: 5Vdc. Load current: 20mA max. at 125ºC.

2 Pumps: The volume supplied by these pumps can be regulated varying the dc voltage value with which they are supplied. Power supply: 12Vdc (max. voltage). Nominal volume: 1 L/min. Nominal current: 1 A DC.



7. Light Test Module Specifications: The objective of this module is to show some of the techniques used to measure light or illumination intensity. The module should be equipped with a lamp whose light intensity can be controlled by the variation of the voltage supplied. This module should have: Lamp, Photodiode, Phototransistor, Light Dependent Resistance (LDR), Photovoltaic Cell and Infrared emitter‐receiver. All the connections from the different transducers and the lamp should be made up using a group of 2 mm terminals placed on the front panel of the test module with drawings describing their functions. The detailed specifications of the system are as follow:

Painted steel box. Approx. dimensions: 405 x 300 x 300 mm & Approx. weight: 6 kg

Power supply requirement: 220V/50Hz.


Lamp: Voltage = 12 V and Power = 5 W.

Photodiode: Power: 250 mW max. Sensitivity: 0.34 A/N. This sensor converts light into either current or voltage, depending upon the mode of operation.

Phototransistor: Current collector: 20 mA max. Peak wavelength: 570 nm. It also consists of a photodiode with internal gain.

Light Dependent Resistor: Power dissipation: 250 mW max. Peak wavelength: 550 nm. A LDR is a resistor whose resistance decreases with increasing incident light intensity.

Photovoltaic Cell: Power: 250 mW max. Peak wavelength: 550 nm.

Infrared emitter‐receiver: Power: 470 mW max. Max. current: 200 mA. Peak wavelength: 880 nm. This element should consist of an IR emitter LED and IR phototransistor.

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Sensor connections with the Base Unit and with power supplies should be through 2 mm terminals located in the front panel of the Test Module.


8. Proximity Test Module Specifications: This Module should be designed to teach techniques to detect the proximity of objects, focusing on the distance at which each sensor is able to detect the object and the type of material it can detect. In the upper part there is a revolving disc on which the objects to be detected are placed. All sensors are situated in front of the disc on walls perpendicular to the disc, so that when the disc turns with an object on it, it will pass in front of each of the module sensors. A dc motor moves the disc at different speeds, which allows studying the maximum frequency the sensor is able to detect. Elements included in the module:

Proximity capacitive sensor.

Hall effect sensor.

Retroreflective optical sensor.

Infrared transmission sensor.

Motor DC.

Conduction sensor.

Inductive sensor.

Ultrasonic sensor. The detailed specifications of the system are as follow:

Painted steel box. Approx. dimensions: 405 x 300 x 250 mm & weight: 10kg.

Power supply requirement: 220V, 50Hz.


DC Motor: Nominal power supply: 12Vdc.

Proximity capacitive sensor: It can detect metallic objects.

Detection distance: 10 mm. Output: 10‐60V, Imax = 200mA. Power supply voltage: 10‐60V.

Hall effect sensor: Proximity switch using the Hall effect, switching when there is a magnetic field. Power supply voltage: 5Vdc. Magnetic flux density: works at 22 mT (35mT max).

Retroreflective optical sensor: Emission narrow beam GaAs IR Emitter. Detection narrow beam IR Photodetector.

Emitter: VF(max): 1.7, VR (min): 3V, radiation power: 4.8mW, peak wavelength: 935nm. Receiver: Vc (max): 12Vdc, Ic (min): 8mA., Darkness current: 100nA.

Transmission infrared sensor: Emission narrow beam GaAs IR Emitter. Detection narrow beam IR Photodetector.

Emitter: VF (max): 1.7, VR (min): 3V., radiation power: 4.8mW., peak wavelength: 935nm. Receiver: Vc (max): 30V., Ic (min): 8mA., Darkness current: 100nA.

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Conduction sensor: Proximity sensor with plate sensible to magnetic fields. Contact material: Rhode. Output: NO‐NC. Breaking voltage: 400V. DC or AC current (max) 0.6Amp.

Inductive sensor: Sensor that gives variations in the output voltage as a variation of the magnetic field, caused by the near ferromagnetic material movement.

Inductance: 12mH. Winding Resistance: 130 Oh. Detection distance: 2mm.

Ultrasonic sensor: Transmitter sensibility: 106 dB. Receiver sensitivity: ‐65 dB. Resonance frequency: 40kHz. Operation distance: 40 cm. Output voltage: 20V rms.



9. Tachometer Test Module Specifications: The Tachometer Test Module should be designed to teach linear and angular speed measurement techniques. In this module placed on the upper part we have a miniature motor used to move the axle. The motor speed can be changed adjusting the voltage delivered to the actuator motor. The rotation speed can be measured using the different measure transducers placed on the axle. Elements included: DC Tachometer, Encoder, Inductive Sensor, Retroreflective

optical sensor, Slot Optical Sensor and Hall Effect sensor. The detailed specifications of the system are as follow:

Painted steel box. Approx. dimensions: 405 x 300 x 250 mm. & Approx. weight: 5.5 kg.

Power supply: 220V AC, 50Hz.


DC Motor: Nominal voltage: 12V. Resistance: 9.7 Oh. Max. vacuum speed: 8500 r.p.m. Max. load speed: approx. 3500 r.p.m. Start voltage: 210mV.

Inductive Sensor: Output voltage: up to 10 Vpp. Body‐housing material: Steel. Operating temperature range: ‐40ºC to +60ºC.

DC Tachometer: Voltage rating: 1.5V(dc). Power rating: 1.21W.

Retroreflective optical sensor: Sensor where an infrared emitting diode and a NPN phototransistor encased side‐by‐side on covering optical axes in a black thermoplastic housing. Vo in output connectors of the module: 0.0‐400mV for Vs=12VDC.

Slot Optical Sensor: Slot optical sensor where an input LED and an output phototransistor are capsulated. Vo in output connectors of the module: 0.0‐5V for Vs = 5VDC.

Hall Effect sensor: Hall‐effect position sensor where exist a relationship between supply voltage and the combined effects of a change in sensitivity (gain) and null voltage output at room temperature.

Supply Voltage: 4 to 10V. Supply Current: 3.5mA. Output type: Differential. Output voltage: 0.25V to 2V. Sensitivity: ‐130 to +130

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gauss; 0.75 to 1.06 mV/gauss. Vo in output connectors of the module: 0.0‐1V for Vs = 5VDC.

Encoder: This optical encoder contains a LED source, an integrated circuit with detectors and output circuitry, and a code wheel which rotates between the emitter and the detector IC. Supply voltage: ‐0.5 to 7 V. Output voltage: ‐0.5 to Vdc. Output current per channel: ‐1 to 5 mA. Velocity: 30000 r.p.m.



Special Terms & Conditions 1. Prices: Prices should be quoted in Indian rupees (INR) and should be

FOR to CTAE, Udaipur. 2. Sales Tax: Extra as GST is applicable. 3. The price quoted should include the charges for installation,

commissioning and training for operation and required programming for Modules interfacing with the Computer Controlled Base Unit.

4. Payment: The payment will be made online after successful commissioning of the item and satisfactory working.

5. Delivery period: Approx. 90 days from the date of receipt of technically & commercially Clear Purchase Order.

6. Warranty: 36 months from the date of commissioning. 7. Manuals: Each module should have its own manual. The manuals should

be supplied with the Required Services, Assembly and Installation, Starting‐up, Safety, Maintenance & Practices Manuals.

8. Module working: Each module may operate independently of one another.

9. Synchronization with base unit: All the modules/kits should be able to communicate to the Computer controlled Base Unit.

10. Quality certificates: ISO9000, ISO14000 and ECO‐Management and Audit Scheme.

11. Pre‐delivery inspection may be required at the manufacturer’s site for verification of the agreed specifications for the package.

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FORMAT FOR QUOTATION SUBMISSION

(On letterhead of the supplier with seal)

Date: _______________

To:

____________________________

____________________________

Sl.

No.

Description of

goods (with full

Specifications)

Qty. Unit Quoted Unit rate in Rs. (Including Ex Factory price, excise duty, packing and forwarding, transportation, insurance, other local costs incidental to

delivery and warranty/ guaranty commitments)

Total Price

(A)

Sales tax and other

taxes payable

In

%

In figures

(B)

1. PLC trainer: motor control and servo motor control application

1 No.

2. Trainer module for the study of sensors

1 No.

Total Cost

Note ‐ The submitted bid will be considered only for those bidders who will submit quotation for both the items.

Gross Total Cost (A+B): Rs. _______________________

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We agree to supply the above goods in accordance with the technical specifications for a total contract price of Rs. ———————— (Amount in

figures) (Rupees —————————————amount in words) within the period specified in the Invitation for Quotations.

We confirm that the normal commercial warranty/ guarantee of ——————— months shall apply to the offered items and we also confirm to

agree with terms and conditions as mentioned in the Invitation Letter.

We hereby certify that we have taken steps to ensure that no person acting for us or on our behalf will engage in bribery.

Signature of Supplier

Name: __________________

Address: __________________

Contact No: ______________

GSTIN: __________________________

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