SparkFun Thermocouple Breakout - MAX31855K

SparkFun Thermocouple Breakout - MAX31855K
Excl. Tax: Rs. 1,427.62 Incl. Tax: Rs. 1,499.00

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SKU: SFE-13266
by Sparkfun

Availability: In stock

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.

Description

Details

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 thermocouple’s 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, for convenience and compatibility with probes you may already own. These connectors aren’t 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:

Additional Information

Additional Information

Processor No
Architecture No
Clock Speed No
Digital Pins No
Analog Pins No
PWM Pins No
Hardware UART No
Programming Interface No
Flash Memory No
Operating Voltage No
Power Output No
Antenna No
Range (Indoor/Urban) No
Range (Outdoor/RF Line of Sight) No
Channel Capacity No
Frequency No
Transmit Current @ 3.3V No
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