GE IC200ALG630 Overview: A Versatile Thermocouple Input Module
The GE IC200ALG630 is a 4-channel thermocouple and millivolt input module from the VersaMax I/O series. Formerly manufactured by GE Intelligent Platforms and now produced by Emerson Automation, this module provides seven input channels for precise temperature and voltage measurement. It supports thermocouple types J, K, T, S, and R, as well as millivolt signals ranging from ±19.5 mV to ±625 mV. This flexibility makes the IC200ALG630 a valuable component for industrial automation applications requiring accurate analog input.
Key Technical Specifications
The module offers a 16-bit resolution with a digital resolution of 15 bits plus sign. It operates on a 5V backplane bus, consuming 125 mA from both 5V and 3.3V outputs. The update rate is approximately 60 ms per channel at 60 Hz and 70 ms per channel at 50 Hz. Accuracy at 25°C is ±0.2% for voltage measurement and ±0.15% for thermocouple temperature measurement. Temperature sensitivity is ±0.004% of reading and ±1.5 µV per °C referred to input over 0° to 60°C.
Each input channel includes an individual analog-to-digital converter (ADC) for signal conversion. The module provides cold junction compensation options: no cold junction, remote cold junction, fixed cold junction, and local cold junction compensation. This allows for flexible integration into various temperature sensing setups.
Diagnostics and Indicators
The GE IC200ALG630 includes advanced diagnostic features for reliable operation. It can detect open thermocouple conditions, over/under range inputs, high/low alarms, and thermistor errors. An OK LED on the front panel indicates backplane power status: green when active and amber when a fault is present. The module also features optical isolation and frame-to-ground isolation rated at 250 VAC continuous and 1500 VAC for one minute.
Operational temperature range is 0 to 60°C. The module does not experience thermal derating, ensuring consistent performance. For connections, shielded twisted pair cables are recommended to minimize noise interference.
Applications and Practical Value
This module is ideal for temperature measurement in industrial processes, such as monitoring ovens, furnaces, or chemical reactors. It also handles non-standard millivolt signals from transducers. The seven-channel design saves panel space, with compact dimensions of 4.3 inches width, 2.63 inches height, and 1.95 inches depth. With high accuracy and robust diagnostics, the IC200ALG630 helps reduce downtime and improve process control.
In summary, the GE IC200ALG630 delivers reliable analog input for demanding environments. Its support for multiple thermocouple types and millivolt ranges, combined with diagnostic capabilities, makes it a solid choice for engineers and technicians. For procurement professionals, this module offers proven compatibility with VersaMax systems and a clear path to integration.