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GE IS220PSVOH1B Mark VIe Pressure Switch/Valve Control Module
Product Overview
The GE IS220PSVOH1B is a high-reliability pressure switch/valve control module designed for GE’s Mark VIe Speedtronic™ turbine control system, critical for power generation, oil and gas, and heavy industrial applications. As a core component of the Mark VIe architecture, this module interfaces with pressure sensors and control valves to monitor and regulate pressure levels in turbine-driven processes, ensuring optimal performance and safety in mission-critical systems . The IS220PSVOH1B supports 8 isolated pressure input channels and 4 discrete output channels, providing real-time data acquisition and control signal distribution for turbine protection and process optimization.
Featuring dual 28V DC power inputs and a high-speed processor, the IS220PSVOH1B ensures seamless integration with Mark VIe controllers, enabling rapid data exchange and redundant communication pathways. Its -40°C to +70°C operating range and IP20-rated metal enclosure make it suitable for extreme environments, including offshore platforms and nuclear power plants . The module’s LED indicators provide instant feedback on power status, sensor connectivity, and fault conditions, while hot-swappable design allows maintenance without system shutdown.
Within the Mark VIe ecosystem, the IS220PSVOH1B pairs with TRTDH1D or H2D terminal boards to interface with pressure sensors and solenoid valves, simplifying wiring and reducing maintenance complexity . Compliance with UL 508 and IEC 61010 standards ensures safety and reliability in regulated industrial settings, including hazardous locations when used with approved terminal boards.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | IS220PSVOH1B |
| Manufacturer | GE |
| Product Type | Pressure Switch/Valve Control Module |
| Series | Mark VIe Speedtronic™ |
| Input Channels | 8 isolated pressure inputs (4-20mA) |
| Output Channels | 4 discrete outputs (28V DC, 0.5A) |
| Power Supply | Dual 28V DC (±10%) |
| Communication Protocol | 10/100Mbps Ethernet (dual ports) |
| Control Modes | Simplex, redundant (dual-channel) |
| Physical Dimensions | 155 mm (L) × 79 mm (W) × 41 mm (D) |
| Weight | 0.6 kg |
| Operating Temperature | -40°C to +70°C |
| Humidity | 5–95% non-condensing |
| Mounting Type | Rack-mounted (Mark VIe I/O rack compatible) |
| Compliance | UL 508, IEC 61010, CE |
| Country of Origin | United States |
Main Features and Advantages
Multi-Channel Pressure Monitoring: The IS220PSVOH1B supports 8 isolated pressure input channels, enabling simultaneous monitoring of critical points such as turbine inlet/outlet pressures, compressor surge conditions, and steam line pressures. Its 4-20mA input compatibility ensures seamless integration with industry-standard pressure transducers, providing accurate measurements for closed-loop control .
Redundant Power and Communication: Dual 28V DC power inputs with automatic failover ensure continuous operation even if one power source fails. The module’s dual Ethernet ports support redundant communication pathways, reducing latency in turbine control loops and enhancing system reliability .
Hazardous Location Certification: UL-listed for Class I, Division 2 hazardous locations when paired with approved terminal boards (e.g., IS200TRTDH2D), the IS220PSVOH1B is ideal for offshore platforms, refineries, and chemical plants where explosive atmospheres are present. Its metal enclosure and wide temperature range ensure durability in corrosive and high-vibration environments .
Flexible Terminal Board Compatibility: The module works with GE’s TRTDH1D, H2D, and SRTD terminal boards, offering configurable voltage thresholds and signal conditioning for various pressure sensor types. This flexibility reduces retrofitting costs in existing turbine systems .
Real-Time Diagnostics: LED indicators provide instant feedback on power status, sensor connectivity, and fault conditions. Integration with Proficy™ software enables remote monitoring of pressure trends, fault logging, and firmware updates, enhancing maintenance efficiency. The module also supports predictive diagnostics, allowing proactive identification of potential sensor or wiring issues .
Application Areas
The GE IS220PSVOH1B is essential for industries requiring precise pressure control and safety systems:
- Power Generation: Monitors turbine inlet pressures, steam header pressures, and generator cooling systems in thermal, combined-cycle, and nuclear power plants, ensuring optimal performance and compliance with safety standards. Its redundancy capabilities meet the stringent requirements of nuclear applications .
- Oil and Gas: Manages pressure-sensitive processes in offshore platforms, refineries, and pipelines, including compressor anti-surge control, wellhead pressure regulation, and subsea flowline monitoring. The module’s hazardous location certification ensures compliance in explosive environments .
- Industrial Manufacturing: Used in chemical plants, pharmaceutical facilities, and food processing plants to monitor reactor pressures, sterilization chambers, and conveyor systems. Its high accuracy supports quality control and process optimization .
- Marine Propulsion: Integrates with shipboard turbine control systems to monitor engine lubrication pressures and exhaust backpressure, ensuring reliable operation in harsh marine conditions. The module’s compact size optimizes space in shipboard control cabinets .
Related Products
- GE TRTDH1D Terminal Board: Connects pressure sensors to the IS220PSVOH1B, offering configurable voltage thresholds and signal isolation for general-purpose pressure measurements .
- GE H2D Terminal Board: Supports high-voltage pressure transducers, providing enhanced signal conditioning for extreme industrial environments .
- GE IS220PAICH2A Redundant Power Supply: Delivers dual 24V DC power to the Mark VIe I/O rack, ensuring fail-safe operation for the IS220PSVOH1B .
- GE IS220ACIOH1A Communication Module: Enables data exchange between the IS220PSVOH1B and SCADA networks, enhancing remote monitoring capabilities .
- GE IS220PPROH1A Backup Protection Module: Provides redundant overspeed protection for turbine systems, complementing the IS220PSVOH1B in safety-critical applications .
Installation and Maintenance
Pre-installation Preparations:
- Verify the Mark VIe I/O rack is grounded and powered (28V DC).
- Align the IS220PSVOH1B with the backplane connectors, securing it with captive screws.
- Connect pressure sensors to the terminal board (e.g., TRTDH1D), ensuring proper wiring configuration (4-20mA) and voltage matching (28V DC).
- Configure input parameters (e.g., pressure range, alarm thresholds) via Proficy™ software, following GE’s wiring diagrams to avoid polarity errors .
Maintenance Recommendations:
- Monthly Inspections: Check LED indicators for power status and sensor faults. Clean dust from ventilation slots using compressed air to prevent overheating.
- Quarterly Testing: Use a multimeter to verify input voltage thresholds and signal isolation. Test redundant power failover by disconnecting one input and confirming seamless switchover .
- Annual Updates: Update firmware to the latest version to address security vulnerabilities and improve compatibility. Perform functional tests to validate pressure measurement accuracy .
- Spare Parts Management: Maintain a spare IS220PSVOH1B in inventory, leveraging our global supply chain for rapid replacement. Regularly test spare modules to ensure operational readiness .
Product Guarantee
Our company provides a 12-month quality warranty for the GE IS220PSVOH1B, covering hardware defects not caused by misuse or improper installation. During the warranty period, we offer free replacement for faulty modules and prioritize urgent orders through our extensive inventory and logistics network. With 17 years of industry experience, we ensure reliable support for your critical turbine control needs, even for specialized components like the IS220PSVOH1B .
Note: All product names, logos, and brands are property of their respective owners. This document is informational and does not substitute for GE’s official technical manuals.
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