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Description
GE DS3800HCVA1J1H Digital-to-Analog Output Board
Product Overview
The GE DS3800HCVA1J1H is a high-precision Digital-to-Analog (D/A) Output Board designed for GE’s Mark IV Speedtronic turbine control system, serving as a critical interface for converting digital control signals into analog outputs for industrial gas and steam turbine applications. As part of the DS3800HCVA series, this module integrates seamlessly with Mark IV microprocessor controllers and field devices to enable real-time signal conversion, precision control, and diagnostic feedback in mission-critical environments .
Engineered with 12 independent D/A conversion channels, the GE DS3800HCVA1J1H supports 4–20 mA analog output signals (industry-standard for process control) and ±10 V DC voltage outputs, ensuring compatibility with legacy actuators, valves, and modern automation systems. Its dual-sided PCB houses 14 field-configurable jumpers, two amber LED indicators, and four trimmer resistors (trimpots), which facilitate signal calibration, noise filtering, and protocol selection without hardware modifications. The module features three front-accessible connectors for direct signal monitoring and adjustment, enhancing diagnostic efficiency during operation .
While the Mark IV series is legacy technology, the GE DS3800HCVA1J1H remains indispensable for maintaining industrial infrastructure in power plants, offshore platforms, and heavy manufacturing facilities. Its wide operating temperature range (-30°C to +65°C) and EMI/RFI shielding ensure reliable performance in harsh environments, while its compact form factor (8.26 cm x 4.19 cm) simplifies integration into space-constrained control racks .
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | GE DS3800HCVA1J1H |
| Manufacturer | General Electric (GE) |
| Product Type | Digital-to-Analog (D/A) Output Board |
| Compatibility | GE Mark IV Speedtronic Turbine Control System |
| Signal Standards | 4–20 mA (current loop), ±10 V DC (voltage) |
| Channels | 12 independent D/A conversion channels |
| Connectors | 3 x front-accessible modular connectors |
| Indicators | 2 amber LEDs (power status and channel activity) |
| Jumpers | 14 configurable jumpers for signal conditioning and protocol selection |
| Trimmer Resistors | 4 adjustable trimpots for calibration adjustments |
| Power Supply | +5V DC ±10% (via Mark IV system backplane) |
| Operating Temperature | -30°C to +65°C |
| Physical Dimensions | 8.26 cm (H) x 4.19 cm (W) |
| Weight | 0.67 lbs (0.304 kg) |
| Warranty | 1–2 years (third-party suppliers, e.g., World of Controls, AX Control) |
| Expansion Capability | None |
Key Features and Advantages
Precision Signal Conversion: The GE DS3800HCVA1J1H delivers 12-bit resolution for analog outputs, ensuring accurate control of valves, actuators, and other process equipment. Its trimmed resistors allow field technicians to fine-tune output offsets and gains, compensating for signal degradation over long cable runs .
Field-Configurable Flexibility: Fourteen jumpers enable users to adjust signal conditioning parameters (e.g., noise filtering, signal scaling) and select communication protocols (e.g., HART, RS485) without reconfiguring software. This adaptability is critical for retrofitting legacy systems with modern sensors or actuators .
Rugged Industrial Design: Built with EMI/RFI shielding and surge protection, the module withstands voltage spikes, electromagnetic interference, and mechanical vibrations. Its drilled mounting holes simplify installation on DIN rails or control panels, reducing downtime during repairs .
Diagnostic Visibility: Two amber LEDs provide real-time feedback on power status and channel activity. For example, a steady amber light indicates normal operation, while flickering signals communication errors or voltage fluctuations .
Long-Distance Signal Transmission: The GE DS3800HCVA1J1H supports 4–20 mA current loop signaling, which is inherently resistant to noise and suitable for transmission over distances exceeding 1,000 meters. This makes it ideal for distributed control systems in power plants and oil refineries .
Application Areas
The GE DS3800HCVA1J1H excels in industrial environments requiring precise analog control and reliable signal conversion:
- Power Generation: Converts digital commands from Mark IV controllers to analog signals for governing steam turbine valves, ensuring stable energy production and grid synchronization. Its 12 channels support simultaneous control of multiple actuators .
- Oil & Gas: Manages analog outputs for wellhead pressure regulators, pump speed controllers, and safety interlocks in offshore platforms. Its surge protection safeguards against voltage transients common in harsh offshore environments .
- Heavy Machinery: Enables high-precision control of hydraulic systems in mining crushers and conveyor belts. Its 12-bit resolution ensures smooth operation and minimizes mechanical wear .
- Industrial Automation: Integrates with GE’s Mark IV I/O modules (e.g., DS3800HIOD1G1G digital I/O boards) to enable seamless communication in manufacturing plants, optimizing material handling and process control .
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Installation and Maintenance
Installation Preparation: Verify compatibility with the Mark IV system and ensure the control rack’s DIN rail is securely mounted. Align the GE DS3800HCVA1J1H with the backplane connector and secure it using M3 screws. Use GE’s TriStation software to configure jumpers for signal conditioning and calibration. Anti-static wrist straps are recommended during handling to prevent ESD damage .
Maintenance Recommendations: Regularly inspect connectors for corrosion and clean dust from vents to maintain optimal airflow. Monitor the amber LEDs for 异常 statuses (e.g., flickering for faults) and address issues promptly. Perform firmware updates as recommended by GE or third-party suppliers. For hardware replacement, retain original jumper settings and terminal configurations for reference. Periodically test diagnostic functions to ensure LED and jumper responsiveness .
Product Assurance
The GE DS3800HCVA1J1H is backed by a 1–2 year warranty covering defects in materials and workmanship, provided by third-party suppliers like World of Controls (24-month warranty) and AX Control (1-year warranty). Global technical support is available through authorized service networks, offering troubleshooting assistance, firmware updates, and replacement parts. This ensures minimal downtime and sustained performance for legacy systems .
HS:7326909000
Contact info
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