▶ Product Description

The Measurement Computing MCC 134 is a thermocouple measurement HAT (Hardware Attached on Top) designed for use with Raspberry Pi®. It features 24-bit resolution and provides professional-grade accuracy which is best in class. The MCC 134 provides four isolated thermocouple inputs. Users can connect up to four differential thermocouples (TC) to the MCC 134 input channels. TC types are software-selectable per channel. TC values can be updated every 1 second, minimum. The MCC 134 is equipped with open thermocouple detection (OTD) for all TC input channels so users can monitor the board for broken or disconnected thermocouples. It also has three high-resolution cold-junction compensation (CJC) sensors.

HAT configuration parameters are stored in an on-board EEPROM that allows the Raspberry Pi to automatically set up the GPIO pins when the HAT is connected. The open-source MCC DAQ HAT Library of commands in C/C++ and Python allows users to develop applications on the Raspberry Pi using Linux. The MCC DAQ HAT Library supports operation with multiple MCC DAQ HATs running concurrently. Console-based and user interface (UI) example programs are available for each API.

▶ Features

• Four isolated thermocouple inputs
• 24-bit A/D converter
• 1 second update interval, minimum
• Thermocouple types J, K, R, S, T, N, E, and B supported
• Cold junction compensation
• Screw terminal connections

▶ Support Materials

• Datasheet

▶ Demo / Project Links

·         Hardware Overview

·         Installation Manual

·         Installing and Using the Library

·         C library reference

·         Python library reference

·         Open-source Library for C/C++ and Python

▶ What's Included

• One MCC 134 DAQ HAT
• 2x20 Header connector (plugs into the 40 pin GPIO connector on the Pi board)
• Jumpers (3)
• Standoffs (4)
• Screws (4)
• Nuts (4)
• Printed insert: Getting Started with MCC DAQ HATs
• MCC packaging assembly/foam, etc.