Study of temperature ON-OFF Controller with Thermistor with power supply (C.R.) Manufacturer,Supplier and Exporter in India
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Product Code : SCL-EELE-12256
Indian Lab Suppliers supplies the Study of temperature ON-OFF Controller with Thermistor with power supply (C.R.) (Product ID: 12256) as part of its electronics engineering lab equipment range. It is a self-contained board for an ON-OFF temperature controller that uses an NTC thermistor, an op-amp comparator and a relay.
Quick Answer
The NTC thermistor senses temperature, an IC 741 op-amp compares it with a level set on the potentiometer, and an NPN transistor drives a 12 V DC relay with 2 A contacts. Students use it to switch an external load ON or OFF at a chosen temperature and to hold the built-in electric oven at a set temperature, checked on the supplied mercury thermometer. Supplies are ±12 V DC at 100 mA (IC regulated, internal) and 20 V AC at 1 A for the oven; a rotary switch is also fitted. The oven gets hot, and the mercury thermometer must be handled carefully; please confirm the relay’s voltage rating at quotation before connecting mains loads.
Key Specifications
| Parameter | Detail |
|---|---|
| Sensor | NTC thermistor |
| Comparator | Op-amp IC 741 |
| Output | NPN transistor driving 12 V DC relay, 2 A contacts |
| Oven | Electrically heated, 20 V AC at 1 A |
| Supply | ±12 V DC at 100 mA, IC regulated, internal |
| Controls | Potentiometer set point; rotary switch |
| Thermometer | Mercury, supplied |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch, fuse, jewel light |
Where This Is Used
Used in industrial electronics and instrumentation practicals on control. Related: Measurement of temperature with thermistor with power supply and 2 meters (C.R.) (Product ID: 12253) and Time Delay Relay (C.R.) with power supply (Product ID: 12232). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
How is the set temperature chosen?
With the potentiometer that sets the comparator level.
Can it switch an external load?
Yes, through the relay with 2 A contacts.
Is a thermometer supplied?
Yes, a mercury thermometer.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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