GE IC695ALG312 Isolated Thermocouple Input Module(ZZFY)

Product Overview

The GE IC695ALG312 is a high-precision isolated thermocouple input module designed for the PACSystems RX3i platform, delivering reliable signal acquisition for industrial automation applications. As part of GE’s advanced PACSystems portfolio, this module bridges legacy thermocouple-based sensors with modern control systems, ensuring seamless integration in harsh environments such as chemical processing, power generation, and automotive manufacturing . With 12 isolated differential channels, the IC695ALG312 supports a wide range of thermocouple types (J, K, T, E, R, S, B, N, C) and voltage inputs (±150mV/±50mV), making it ideal for temperature monitoring, process optimization, and predictive maintenance . Its 32-bit IEEE floating-point resolution ensures accuracy within ±0.1% of full scale, while the 250V AC continuous isolation safeguards against ground loops and voltage spikes .

Designed for scalability, the IC695ALG312 operates on the RX3i universal backplane, enabling integration with high-performance CPUs like the IC695CPU320 for real-time data processing. Its hot-swap capability minimizes downtime during module replacement, critical for continuous-process industries. The module’s compact form factor (13.5 cm x 13.5 cm x 3.5 cm) and rugged construction (-25°C to 60°C operating temperature) ensure reliable performance in extreme conditions, including Class I Division 2 hazardous locations .

Technical Specifications

Parameter Name	Parameter Value
Product Model	IC695ALG312
Manufacturer	GE Fanuc / Emerson Automation Solutions
Product Type	Isolated Thermocouple Input Module for PACSystems RX3i
Channels	12 isolated differential inputs (configurable for thermocouples or voltage)
Input Types	Thermocouple: J, K, T, E, R, S, B, N, C Voltage: ±150mV, ±50mV
Resolution	32-bit IEEE floating-point or 16-bit integer
Isolation	250V AC continuous, 1500V AC 1-minute withstand
Accuracy	±0.1% of full scale at 25°C
Filter Options	Software-selectable notch filters (2.3Hz–28Hz)
Response Time	10ms per channel (1kHz filter)
Power Supply	5V DC (backplane) + 3.3V DC (module)
Operating Temperature	-25°C to 60°C
Physical Dimensions	13.5 cm (H) x 13.5 cm (D) x 3.5 cm (W) (inferred from RX3i standard form factor)
Weight	2 kg
Certifications	CE, UL 508 (inferred from GE industrial product standards)

Key Features and Advantages

High-Precision Signal Conditioning:
The IC695ALG312 combines 32-bit resolution with advanced sigma-delta ADC technology to achieve ±0.1% accuracy, critical for applications requiring tight temperature control in pharmaceutical reactors or turbine systems. Its programmable notch filters reduce noise from electromagnetic interference (EMI), ensuring stable readings in electrically noisy environments .

Flexible Configuration:
Each channel can be independently configured for thermocouple or voltage inputs, allowing hybrid deployments of legacy sensors and modern transmitters. The module supports open-wire detection and short-circuit protection, providing real-time diagnostics via LED indicators (PWR, STAT, CHx status) .

Rugged Design:
With 250V AC continuous isolation and IP20-rated housing (IP67 with optional cover), the IC695ALG312 withstands extreme temperatures, humidity, and vibration. Its hot-swap capability enables maintenance without system shutdown, minimizing downtime in critical processes like oil refining or food production .

Scalable Integration:
Part of the RX3i modular ecosystem, the IC695ALG312 works seamlessly with Proficy Machine Edition software, enabling remote configuration, firmware updates, and data logging. It pairs with IC695CHS007 backplanes for expanded I/O capacity and IC695CPU320 controllers for high-speed control loops .

Applications

The IC695ALG312 excels in scenarios requiring precise temperature monitoring and control:

Process Industries: Optimizing chemical reactor temperatures by interfacing with J/K-type thermocouples in petrochemical plants.
Power Generation: Monitoring turbine exhaust temperatures in combined-cycle power plants using R/S-type thermocouples.
Automotive Manufacturing: Ensuring uniformity in paint curing ovens via T-type thermocouple arrays.
HVAC Systems: Managing chilled water systems in data centers through ±150mV voltage inputs from pressure transducers.
Renewable Energy: Calibrating solar panel efficiency by measuring ambient and panel temperatures with K-type thermocouples.

Installation and Maintenance

Installation Preparation:

Power down the RX3i system and insert the IC695ALG312 into a universal backplane slot. Ensure the terminal block (e.g., IC694TBS032) is securely attached to the module’s connector.
Use Proficy Machine Edition to configure channel parameters (signal type, filter frequency, scaling factors). Verify proper grounding and shielding of thermocouple cables to minimize noise .

Maintenance Recommendations:

Conduct annual calibration using GE’s certified tools to maintain ±0.1% accuracy, especially in high-temperature environments. Replace the module if the STAT LED blinks red (internal fault) or amber (component wear).
Clean dust from vents quarterly and inspect for loose connections. Store spare modules in anti-static packaging at -20°C to 70°C to extend capacitor lifespan .

Product Assurance

GE guarantees the IC695ALG312 against defects in materials and workmanship for 1 year from purchase, covering repair or replacement of faulty components. Customers gain access to GE’s global technical support network, offering 24/7 assistance for troubleshooting, firmware updates, and migration strategies. Extended warranties (up to 3 years) and maintenance contracts, including thermal cycling tests and bus integrity checks, are available through authorized partners to maximize system uptime. With CE and UL 508 compliance (inferred), the IC695ALG312 meets rigorous safety and performance standards for industrial applications worldwide .

HS:8514909000

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