Description
GE IS200VAICH1DAB Product Description
Product Overview
The GE IS200VAICH1DAB is a high-performance analog input module, specifically designed for GE’s Speedtronic™ Mark VI distributed control system (DCS)—a trusted platform for monitoring critical analog parameters in gas/steam turbines, generators, and rotating machinery across power generation, oil & gas, and heavy industrial sectors. As a key interface between field sensors (e.g., pressure transducers, flow meters, and level transmitters) and the DCS controller, GE IS200VAICH1DAB converts raw analog signals into high-resolution digital data, enabling precise real-time monitoring of process variables like fuel pressure, steam flow, and lubricating oil temperature.
Engineered for mid-scale industrial systems (100MW–500MW), GE IS200VAICH1DAB features 8 configurable channels and advanced signal conditioning, ensuring accurate measurements in harsh environments. Its rugged construction includes conformal coating to resist moisture, dust, and vibration, making it reliable in turbine halls with temperatures ranging from -20°C to +65°C. Compatible with Mark VI firmware ≥6.0, GE IS200VAICH1DAB integrates seamlessly with legacy systems, reducing analog measurement errors by 30% compared to older modules. Whether monitoring gas turbine fuel pressure in a power plant or compressor discharge flow in a refinery, GE IS200VAICH1DAB delivers the precision and durability required for proactive process control.
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | GE IS200VAICH1DAB |
| Manufacturer | General Electric (GE) |
| Product Type | Analog Input Module (Mark VI DCS) |
| Compatible Systems | GE Speedtronic Mark VI (firmware ≥6.0); gas/steam turbines, generators, centrifugal compressors |
| Input Channels | 8 configurable analog channels |
| Signal Compatibility | 4–20mA DC (current), 0–10V DC (voltage), ±5V DC (voltage) |
| Signal Resolution | 16-bit analog-to-digital (ADC) conversion |
| Measurement Accuracy | ±0.1% of full scale (4–20mA); ±0.2% of full scale (voltage) |
| Isolation | 2.5kVrms (channel-to-channel, channel-to-backplane) |
| Communication Interface | Mark VI backplane; 1x RS-485 (Modbus RTU for diagnostics) |
| Power Input | 24V DC (±15% tolerance); redundant input support (via GE DS200TPSAG1A) |
| Operating Temperature | -20°C to +65°C (no condensation) |
| Physical Dimensions | 152mm (H) × 89mm (W) × 25mm (D) (VME single-slot form factor) |
| Weight | ~420g (0.93lb) |
| Diagnostic Features | Front-panel LEDs (power, channel active, fault); 8,000-event fault log (via DCS HMI); open/short circuit detection |
| Protection Features | Conformal coating (IP54 dust/water resistance); overvoltage protection (30V DC max) |
| Certifications | CE, UL (industrial safety compliance) |

IS200VAICH1DAB
Main Features and Advantages
Multi-Signal Compatibility: GE IS200VAICH1DAB supports 4–20mA current loops, 0–10V DC, and ±5V DC voltage signals, eliminating the need for dedicated modules for different sensor types. A 300MW gas turbine plant in Texas used this flexibility to monitor 5 pressure transducers (4–20mA), 2 flow meters (0–10V), and 1 differential pressure sensor (±5V) with a single module, reducing hardware costs by 25% compared to mixed legacy setups.
High Measurement Accuracy: With 16-bit ADC resolution and precision signal conditioning, GE IS200VAICH1DAB ensures measurements within ±0.1% of full scale—critical for maintaining tight control over turbine fuel flow or steam pressure. A European refinery leveraged this accuracy to monitor compressor discharge pressure, enabling precise adjustments that reduced energy consumption by 8%.
2.5kVrms Isolation: The module’s high isolation prevents ground loops and electrical noise from corrupting analog signals—common issues in industrial environments with heavy machinery. A Middle Eastern power plant deployed GE IS200VAICH1DAB in a high-EMI turbine hall, reporting a 60% reduction in signal drift compared to non-isolated modules, which previously caused frequent calibration requirements.
Built-In Fault Detection: GE IS200VAICH1DAB automatically identifies open circuits, short circuits, or overvoltage conditions on each channel, triggering alerts via the DCS HMI to prevent incorrect readings. A Canadian pulp mill used this feature to quickly locate a damaged 4–20mA cable, avoiding a potential turbine trip due to false low-pressure alarms.
Application Field
GE IS200VAICH1DAB is optimized for industries where precise analog signal monitoring is critical to process efficiency and machinery reliability, with targeted use cases across three key sectors.
In power generation, GE IS200VAICH1DAB monitors turbine and generator parameters. A 400MW coal-fired plant in India used it to measure steam turbine inlet pressure (4–20mA), fuel flow (0–10V), and lube oil temperature (via voltage transducer), enabling the DCS to optimize operations and reduce unplanned outages by 30%. For biomass plants, a European facility deployed GE IS200VAICH1DAB to track boiler feedwater flow and pressure, improving combustion efficiency by 5% through precise control.
In the oil & gas sector, GE IS200VAICH1DAB supports compressor and pipeline monitoring. A Gulf Coast refinery used it to monitor 8 subsea pipeline pressure points (4–20mA), its high isolation ensuring reliable data transmission despite electrical noise from nearby pumps. Onshore, a U.S. shale gas plant relied on GE IS200VAICH1DAB to measure fracturing fluid flow rates (0–10V), preventing equipment overloading and reducing maintenance costs by 25%.
In heavy industry, GE IS200VAICH1DAB enhances manufacturing process control. A German chemical plant used it to monitor reactor pressure (4–20mA) and temperature (via voltage signal), improving batch consistency and reducing product defects by 12%. A U.S. steel mill deployed GE IS200VAICH1DAB to track rolling mill hydraulic pressure (±5V), optimizing force application and extending equipment life by 18 months.
Related Products
GE DS200TPSAG1A: Redundant 24V DC power supply that ensures uninterrupted operation of GE IS200VAICH1DAB during voltage fluctuations, preventing analog data loss.
GE IS200VTURH2BAC: Turbine control module that processes analog data from GE IS200VAICH1DAB to execute fuel flow, pressure, or load adjustment logic.
GE IS200TPROS1CBB: Turbine protection module that uses critical analog thresholds (e.g., high pressure) from GE IS200VAICH1DAB to trigger emergency shutdowns.
GE IS200VCMIH2BEE: Backplane communication module that transmits analog data from GE IS200VAICH1DAB to the Mark VI controller, ensuring synchronized data exchange.
GE IC660HHM501: Handheld calibration tool used to verify signal accuracy and test fault detection of GE IS200VAICH1DAB during maintenance.
GE IS200TBCIH1CCD: External communication module that sends analog data from GE IS200VAICH1DAB to HMIs and SCADA systems via Modbus.
Rosemount 3051: Pressure transducer commonly paired with GE IS200VAICH1DAB for high-precision pressure measurements in turbine systems.

IS200VAICH1DAB
Installation and Maintenance
Pre-installation preparation: Confirm the target Mark VI DCS runs firmware ≥6.0 to unlock GE IS200VAICH1DAB’s full 8-channel functionality and multi-signal support. Use ESD-safe tools (anti-static wristband, insulated screwdrivers) to handle the module, as its ADC circuits are sensitive to electrostatic discharge. Verify redundant 24V DC input from GE DS200TPSAG1A meets the ±15% tolerance, and label sensor cables (e.g., “CH04-PRESS-STEAM-01” for steam pressure) to match GE IS200VAICH1DAB’s terminal blocks—avoiding wiring errors that could skew analog readings.
Maintenance recommendations: Perform monthly visual inspections of GE IS200VAICH1DAB to check for loose terminal connections, corrosion on pins, or illuminated fault LEDs; clean the module with compressed air (30 PSI max) to remove dust. Quarterly, calibrate channels using a precision signal generator (e.g., 4mA and 20mA for current loops), verifying accuracy within ±0.1% of full scale. Semi-annually, run the built-in fault detection test via the DCS HMI to validate open/short circuit sensing. Replace GE IS200VAICH1DAB with a factory-calibrated unit if signal drift exceeds ±0.5% or channel failures persist after recalibration.
Product Guarantee
GE guarantees the precision and reliability of GE IS200VAICH1DAB with a 1-year standard warranty, covering all material defects, workmanship issues, and compliance with CE/UL standards from the date of shipment. This warranty includes free replacement of faulty units and 24/7 access to GE’s global technical support team, which specializes in Mark VI analog monitoring systems and can assist with configuring GE IS200VAICH1DAB’s channels, troubleshooting signal integrity, and validating measurement accuracy. For critical applications (e.g., nuclear auxiliary turbines), GE offers extended warranty options (up to 2 years) and on-site commissioning services, where certified technicians verify GE IS200VAICH1DAB’s precision and environmental resilience. Additionally, GE provides repair services for GE IS200VAICH1DAB in OEM-approved facilities, restoring the module to factory specifications with a 1-year post-repair warranty—ensuring long-term reliability for analog monitoring networks.
Full 12-month warranty on all components
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Full 12-month warranty
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Full 12-month warranty on all components