AL-E150B ADVANCED RTD TEMPERATURE TRANSDUCER TRAINER

Description

AL-E150B ADVANCED RTD TEMPERATURE TRANSDUCER TRAINER

 1. Product Overview

The AL-E150B Advanced RTD Temperature Transducer Trainer is a comprehensive educational training system designed for practical study of RTD-based temperature measurement and temperature transducer signal conditioning. The trainer incorporates RTD/temperature sensors, signal-conditioning circuits, amplification, comparison, switching, relay and buzzer facilities, digital temperature indication, voltage measurement, and an onboard RTD temperature-transducer circuit module.

2. Scope of Learning

The trainer facilitates practical study of:

• RTD temperature sensing and transduction.
• Platinum RTD / PT100 characteristics.
• NTC thermistor temperature sensing.
• IC temperature sensor operation.
• Thermocouple signal measurement.
• Temperature-to-electrical signal conversion.
• Instrumentation amplifier operation.
• DC amplifier and X100 amplifier operation.
• Comparator operation.
• Electronic switch operation.
• Relay and buzzer control.
• Temperature indication using a digital display.
• RTD signal conditioning and amplification.
• Voltage-output and current-output temperature transducer circuits.
• Study of sensor, amplifier and ADC signal-conditioning blocks.

3. Main Functional Sections

A. DC Power Supply Section

The front panel provides multiple DC supply outputs:

B. Temperature Sensor Section

The trainer provides provisions for studying multiple temperature-sensing elements:

• Platinum RTD
• PT100 RTD
• NTC Thermistor
• IC Temperature Sensor
• Thermocouple
• Heater element for temperature variation
• Sensor input/output terminals

C. RTD Temperature Transducer Module

A separate onboard module provides the RTD signal-conditioning circuit.

Major provisions include:

• PT100 input
• Sensor excitation/signal-conditioning circuitry
• Operational-amplifier stages
• Resistor networks
• Adjustable circuit elements
• Diode-based circuitry
• Transistor switching stage
• Multiple test/connection points
• Signal output terminals
• 0–5 V / 4–20 mA output provision as marked on the module

4. Digital Temperature Indicator

5. Digital Voltmeter

The exact voltage range is not legible/confirmed from the supplied image and should be specified from the final circuit design or manufacturer datasheet.

6. Instrumentation Amplifier

The trainer incorporates an onboard Instrumentation Amplifier section for amplification and conditioning of low-level sensor signals.

Features include:

• Differential signal input.
• A and B input terminals.
• Amplified output terminal.
• Dedicated signal-conditioning block.
• Suitable for RTD and other temperature-sensor experiments.

7. X100 Amplifier

• Built-in X100 amplifier.
• Dedicated input and output terminals.
• Designed for signal amplification.
• Useful for observing small sensor/transducer signals after amplification.

8. DC Amplifier

• Onboard DC amplifier.
• Dedicated input and output terminals.
• Suitable for amplification of slowly varying temperature signals.
• Colour-coded connection points.

9. Comparator

The trainer incorporates a comparator section for studying threshold-based temperature/signal detection.

Facilities include:

• Two comparator input terminals.
• A/B input identification.
• Comparator output.
• Graphical circuit representation on the front panel.

10. Electronic Switch

• Built-in electronic switching circuit.
• Input and output terminals.
• Graphically represented on the front panel.
• Suitable for demonstrating electronic switching based on the conditioned signal.

11. Relay and Buzzer Section

The trainer includes relay-control and buzzer facilities for demonstrating temperature-dependent switching.

Relay

• Relay coil connections.
• COM contact.
• NO contact.
• NC contact.
• Colour-coded terminals.

Buzzer

• Panel-mounted buzzer.
• Associated with relay/control circuitry.

12. Heater Element

A built-in heater element is provided for generating controlled temperature variation during experiments.

• Heater element mounted on the front panel.
• Dedicated heater terminals.
• Heater control/input provision.
• Suitable for demonstrating temperature-sensor response.

13. Potentiometer Sections

The trainer incorporates multiple potentiometer controls for circuit adjustment and simulation.

Wire-Wound Potentiometer

• Panel-mounted wire-wound potentiometer.
• Approximate marking: 10K.
• Multiple connection points marked A, B and C.

Additional Potentiometer

• Panel-mounted potentiometer.
• Approximate marking: 10K.
• A/B/C connection terminals.

Slide Potentiometer

• Linear slide potentiometer.
• Graduated scale approximately 0–100 as visible on the panel.
• Suitable for adjustable signal/reference input.

14. Thermocouple Section

• Thermocouple mounted/provided on the trainer.
• Output terminals provided.
• Reference terminals provided.
• Colour-coded connection points.
• Enables practical temperature-sensing experiments.

15. Sensor Signal-Conditioning Block

The front panel provides a functional block diagram incorporating:

POWER SUPPLY → SENSOR → INSTRUMENTATION AMPLIFIER

And GAIN AMPLIFIER → ADC CHANNEL

This allows students to understand the complete temperature measurement signal chain from sensor excitation through conditioning and conversion.

16. RTD Transducer Circuit Module

The removable/raised module shown on the trainer provides a detailed schematic identified as:

RTD TEMPERATURE TRANSDUCER MODULE

The module includes:

• PT100 sensor input.
• Multiple operational amplifiers.
• Resistor networks.
• Diodes.
• Transistor stage.
• Adjustable components.
• +12 V / −12 V supply points.
• Sensor input terminals.
• 4–20 mA-related connection.
• Voltage/current output provisions.
• Circuit test points.
• Clearly printed schematic.

17. Front Panel Construction

• High-quality insulated educational trainer panel.
• Permanently printed circuit diagrams and functional blocks.
• Clearly identified inputs and outputs.
• Colour-coded banana/safety sockets.
• Panel-mounted switches, indicators, meters and controls.
• Separate sections for sensors, signal conditioning and output circuitry.
• Robust blue ABS-type enclosure.

18. Connection System

The trainer uses colour-coded laboratory terminals for convenient experimentation.

Connections are provided for:

ü +12 V

ü −12 V

ü +5 V

ü −5 V

• Sensor inputs
• Amplifier inputs/outputs
• Comparator inputs/outputs
• Relay contacts
• Thermocouple
• RTD/PT100
• Thermistor
• Temperature indicator
• Transducer outputs

19. Salient Features

Comprehensive RTD temperature transducer training system.

• PT100/Platinum RTD facility.
• NTC thermistor facility.
• IC temperature sensor facility.
• Thermocouple facility.
• Built-in heater element.
• Digital temperature indicator.
• Digital voltmeter.
• Instrumentation amplifier.
• X100 amplifier.
• DC amplifier.
• Comparator.
• Electronic switch.
• Relay and buzzer.
• Wire-wound and linear potentiometers.
• Dedicated RTD transducer circuit module.
• Clearly printed circuit diagrams.
• Colour-coded laboratory terminals.
• Integrated power supplies.
• Suitable for practical laboratory and engineering education.

20. Model Identification

Model No.: AL-E150B
Product: Advanced RTD Temperature Transducer Trainer
Application: Temperature Measurement, RTD Transduction & Signal Conditioning
Construction: Bench-top educational trainer with blue enclosure and insulated front panel.

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Technical Details