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Digilent E-TC Ethernet-based 8-Ch Thermocouple Input Device

Digilent E-TC Ethernet-based 8-Ch Thermocouple Input Device is a high-accuracy temperature measurement solution with an Ethernet interface. The E-TC delivers incredible value per channel and excellent accuracy. The internal measurement electronics' accuracy exceeds the thermocouple sensors' accuracy specifications.

The Digilent E-TC is functionally equivalent to the USB-TC, allowing easy application migration.

Features

  • 8x 24-bit differential thermocouple (TC) inputs with TC channel-to-host isolation
    • 4S/s per channel maximum sample rate
    • 2x integrated cold junction compensation (CJC) sensors
    • Open thermocouple detection
    • Supports J, K, R, S, T, N, E, and B type thermocouples
  • 8x digital I/O isolated from TC inputs and host
    • Digital outputs configurable as TC alarms
    • ±24mA drive capability
  • 10/100 Ethernet interface
  • Required +5V external power adapter included
  • Supported operating systems
    • Windows 11/10/8/7/Vista® 32/64-bit
    • Linux®
    • Android™

Specifications

  • Delta-Sigma A/D converters
  • 24-bits ADC resolution
  • 8x channels
  • 500VDC Absolute maximum input isolation (between any TCx channel and digital/chassis ground)
  • Software-selectable channel configuration to match sensor type
  • ±0.128V (calibration is performed at ±70mV) differential input voltage range
  • ±25V (power on), ±25V (power off) absolute maximum input voltage between any two TCx inputs
  • 40MΩ differential input impedance
  • Input current
    • 1nA open thermocouple detect disabled
    • 65nA open thermocouple detect enabled
  • 100dB common mode rejection (fIN = 50Hz or 60Hz)
  • 75dB noise rejection at fIN = 50Hz or 60Hz
  • 10Hz input bandwidth
  • -90dB crosstalk between any two TCx inputs
  • Sample rate of 4Hz maximum (per channel)
  • 250nVRMS input noise
  • 0.006% gain error
  • 3µV offset error
  • Measurement sensitivity
    • 0.09°C Thermocouple type J, K, T, E, N
    • 0.11°C Thermocouple type R, S
    • 0.13°C Thermocouple type B
  • 20 minutes minimum warm-up time
  • Open thermocouple detect response time of 1 second
  • CJC sensor accuracy (0°C to +45°C): ±0.20°C typical, ±0.40°C maximum
  • Factory calibration method
  • 1-year (factory calibration) calibration interval

Kit Contents

  • E-TC
  • Ethernet cable
  • Power supply, 5VDC output
  • Printed insert of DAQami quick start
  • Field changeable AC input plug (USA style is included, other types may be purchased separately)
  • MCC packaging assembly/foam, etc.

Overview

Digilent E-TC Ethernet-based 8-Ch Thermocouple Input Device

Block Diagram

Block Diagram - Digilent E-TC Ethernet-based 8-Ch Thermocouple Input Device
Publicado: 2023-03-23 | Actualizado: 2023-03-31