Free Simple Circuit Diagram
This is a AD596/AD597 J-K Thermocouple Signal Conditioner circuit. When operated with J and K type thermocouples, the AD596/AD597 can produce a temperature proportional output of 10 mV/°C. Thermocouples generate low level output voltages which are a function of both the reference or cold junction temperature and temperature being measured. The AD596/AD597 is used to compensate the cold junction temperature. […]
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This is a temperature indication and control system using the AD596/AD597. In this system, AD596/AD597 is used as a closed-loop thermocouple signal conditioner. This system uses an external op amp to implement setpoint. The advantages of this system are preserves the alarm function for open thermocouples and provides a high level (10mV/°C) output for the A/D panel meter. Here is […]
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The output conditions of a Type K thermocouple, while providing cold-junction compensation, operating over temperatures between 0’C and 250’C is shown in circuit diagram below. This circuit has been designed to produce a basic output voltage transfer characteristic of 10mV/’C and operates from single +3.3V to +5.5V supplies with the AD8551. A Type K thermocouple exhibits a Seebeck coefficient of […]
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LM134 makes a good temperature sensor because it has a highly linear output characteristic. Because it is a current output device and is therefore not affected by long wire runs, LM134 is particularly useful in remote sensing applications. LM134 is easy to calibrate. It has good long term stability and can be interfaced directly with most data acquisition system, so […]
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