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Table of Contents
- 1 Build Instructions – Cold Activated
- 2 Build Instructions – Heat Activated
- 3 Checking Your Heat Activated Switch Board
- 4 Testing the PCB
- 5 How the Heat Activated Switch Works – Cold Activated
- 6 How the Heat Activated Switch Works – Heat Activated
- 7 Applications
- 8 Online Information
- Download this manual
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Table of Contents
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Summary of Contents for Kitronik 2113
- Page 1 ESSENTIAL INFORMATION BUILD INSTRUCTIONS CHECKING YOUR PCB & FAULT-FINDING MECHANICAL DETAILS HOW THE KIT WORKS REACT TO THE TEMPERATURE WITH THIS HEAT ACTIVATED SWITCH KIT Version 2.1...
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Page 2: Connecting Power
Heat Activated Switch Essentials www.kitronik.co.uk/2113 Build Instructions – Cold activated Before you start, take a look at the Printed Circuit Board (PCB). The components go in the side with the writing on and the solder goes on the side with the tracks and silver pads. - Page 3 Heat Activated Switch Essentials www.kitronik.co.uk/2113 Build Instructions – Heat activated Before you start, take a look at the Printed Circuit Board (PCB). The components go in the side with the writing on and the solder goes on the side with the tracks and silver pads.
- Page 4 Heat Activated Switch Essentials www.kitronik.co.uk/2113 Checking Your Heat Activated Switch Board Check the following before you connect power to the board: Check the bottom of the board to ensure that: • All these leads are soldered • Pins next to each other are not soldered together Check the top of the board to ensure that: •...
- Page 5 Heat Activated Switch Essentials www.kitronik.co.uk/2113 How the heat activated switch works – Cold activated LED1 220 Output Transistor Transistor Thermistor The circuit operation is very simple. When the input to the transistor Q1, which is fed from the connecting point of R1 and R2, is greater than 1.4V the output is turned on.
- Page 6 Heat Activated Switch Essentials www.kitronik.co.uk/2113 How the heat activated switch works – Heat activated LED1 220 Output Thermistor Transistor Transistor The circuit operation is very simple. When the input to the transistor Q1, which is fed from the connecting point of R1 and R2, is greater than 1.4V the output is turned on.
- Page 7 Heat Activated Switch Essentials www.kitronik.co.uk/2113 Applications Heat activated fan/cooler By using a temperature activated board built in the heat activated option and the addition of motor it is possible to make a heat activated fan (shown right). The fan can be set up to come on at a desired temperature by adjusting the variable resistor.
- Page 8 / omissions in the notes. Kitronik Ltd - Any unauthorised copying / duplication of this booklet or part thereof for purposes except for use with Kitronik project kits is not allowed without Kitronik’s prior consent.
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