Thermocouple Breakout - MAX31855K

SparkFunSKU: PL4-SEN-13266
filler

Price:
Sale price$54.99

Description

The SparkFun MAX31855K Thermocouple Breakout is a simple 14-bit resolution, SPI-compatible, serial interface thermocouple digitizer that makes reading a wide range of temperatures possible. A thermocouple works by taking two wires made of dissimilar metals, connecting them at the two ends, and making a temperature gradient between one end and the other (a 'hot' end and a 'cold' one). Once this is achieved, a voltage potential is formed and current flows. The SparkFun Thermocouple Breakout takes a standard Type-K thermocouple in one end, digitizes the temperature measured and sends that data out the other end via a SPI interface, thereby interpreting the data and translating it for you to read!

With the SparkFun Thermocouple Breakout, the thermocouples hot junction can be read from -200°C to +700°C with an accuracy of ±2°C while the cold junction, inside the MAX31855K, can only range from -20°C to +85°C while maintaining ±2°C accuracy. The MAX31855K constantly measures the temperature of the cold junction using an internal temperature-sensing diode. The MAX31855K requires a power source from +3.0V to +3.6V (+3.0V nominal) and only draws 1.5mA maximum.

The Thermocouple Breakout is designed to accept a standard [thermocouple connector](https://www.sparkfun.com/products/13612), for convenience and compatibility with probes you may already own. These connectors arent necessary, and you could solder a thermocouple directly into the through-holes labeled ˜+ and ˜-. If you decide to solder the thermocouple directly to the breakout board, it is recommended that the thermocouple be mounted for strain relief to avoid breaking the thin wires. Notches for a zip-tie or wire wrapping have been provided in the PCB opposite the header for this purpose.

**Features:**

* 14-bit Resolution
* SPI-Compatible, Serial Interface
* -200°C to +700°C Temperature Reading with ±2°C Accuracy
* 3.0V to 3.6V (+3.0V nominal) Required
* Accepts Type-K Thermocouple

**Documents:**

* [Schematic](https://cdn.sparkfun.com/datasheets/Sensors/Temp/SparkFun_Thermocouple_Breakout_v10.pdf)
* [Eagle Files](https://cdn.sparkfun.com/datasheets/Sensors/Temp/SparkFun_Thermocouple_Breakout_v10.zip)
* [Hookup Guide](https://learn.sparkfun.com/tutorials/max31855k-thermocouple-breakout-hookup-guide)
* [Datasheet](https://cdn.sparkfun.com/datasheets/Sensors/Temp/MAX31855K.pdf) (MAX31855K)
* [GitHub](https://github.com/sparkfun/MAX31855K_Thermocouple_Breakout) (Design Files)
* [GitHub](https://github.com/sparkfun/SparkFun_MAX31855K_Thermocouple_Breakout_Arduino_Library) (Library & Example Code)

**Videos**

Shipping and delivery Information

The PuriLite Peace of Mind 30-day money back guarantee

Payment

American Express Apple Pay Diners Club Discover Google Pay Mastercard PayPal Shop Pay Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

You may also like

Recently viewed