Digilent TC-32-EXP Thermocouple Expansion Module

Overview

The Digilent TC-32-EXP is an expansion module for the Digilent TC-32 thermocouple measurement system. It adds 32 differential thermocouple inputs, bringing the total channel count to 64. The module features two independent 24-bit ADCs and includes open thermocouple detection for system diagnostics.

Key Features

• Adds 32 differential thermocouple inputs to TC-32 (total capacity: 64 channels)
• Two 24-bit ADCs (one per 16 inputs) for independent measurements
• 3 samples per second update rate
• Support for thermocouple types J, K, R, S, T, N, E, and B (software-selectable per channel)
• Integrated cold junction compensation sensor on each input
• Open thermocouple detection for fault identification
• Field-to-host isolation on thermocouple channels
• 50-pin header connector for digital I/O connections
• Powered directly by host TC-32 unit

Digital I/O

Provides 8 digital inputs with 500 port reads per second or single-bit read capability, and 32 digitally isolated outputs. Each digital input includes a 100 kΩ pull-up resistor. All DIO bits have internal 5V pull-up resistors that can be disabled via rear panel slide switches.

Included Accessories

• 40-pin ribbon cable for TC-32 connection