GE IC670ALG630 Thermocouple Input Module

Overview

The GE IC670ALG630 is a high-precision thermocouple input module for the Field Control I/O system. It supports up to eight independent channels for thermocouple or millivolt inputs. Each channel can deliver either raw millivolt readings or linearized temperature values in Celsius or Fahrenheit. The module includes optional cold junction compensation and fast data acquisition at selectable line frequencies. With strong isolation and built-in diagnostics, it ensures safe, accurate, and reliable temperature monitoring in industrial environments.

Technical Specifications

• Input Channels: 8 independent inputs

• Supported Inputs: Thermocouples (Types J, K, T, E, R, S, B, N) and millivolt signals up to ±625 mV

• Input Configuration: Configurable per channel for millivolt or temperature readings

• Output Options: Linearized values in °C or °F, or raw millivolt values

• Resolution: 15-bit plus sign for precise conversion

• Spans Supported: ±19.5 mV, ±39 mV, ±78.125 mV, ±156.25 mV, ±312.5 mV, ±625 mV

• Data Rates: Selectable 50 Hz or 60 Hz acquisition

• Accuracy: Typically ±0.1% of full scale

• Temperature Sensitivity: ±0.004% of reading, ±1.5 mV per °C referred to input

• Diagnostics: Open thermocouple detection, out-of-range alarms, configurable alarm thresholds

• Isolation: 1500 VAC channel-to-backplane, 250 VAC maximum between channels

• Power Supply: 195 mA maximum from Field Control backplane, no external supply required

• LED Indicators: Power, status, and fault indicators

• Operating Temperature: 0°C to 60°C (32°F to 140°F)

• Storage Temperature: –40°C to +85°C

• Humidity Range: 5% to 95% non-condensing

• Mounting: Field Control baseplate installation

• Weight: 1.17 lbs