+86 18030182217
+86 18030182217
sandydcsplc@gmail.com
Description
Product Overview
The GE DS3800DOWA1A1A is a high-performance digital output module designed for GE’s Mark IV Speedtronic turbine control systems. As a critical component in industrial automation, this board converts digital control signals into precise analog outputs for actuators, valves, and other field devices. Its modular design features a 34-pin connector and 12 configurable jumpers, allowing technicians to adapt the board to diverse voltage and current requirements. The DS3800DOWA1A1A integrates with the Mark IV system’s redundant control architecture, ensuring fail-safe operation in mission-critical environments like power plants and oil refineries.
Equipped with an 800Vdc isolation capacitor, the DS3800DOWA1A1A provides robust protection against voltage spikes and electromagnetic interference (EMI). Its compact form factor (9.5” x 6.5” x 1.0”) and retention levers enable easy installation within GE’s control racks, minimizing downtime during system upgrades. The board’s 11 trimmer resistors (trimpots) allow fine-tuning of signal amplitudes, ensuring compatibility with legacy and modern industrial equipment.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | DS3800DOWA1A1A |
| Manufacturer | General Electric (GE) |
| Product Type | Digital Output Module (Mark IV Speedtronic Series) |
| Signal Conversion | 12-bit digital-to-analog conversion |
| Output Channels | 8 isolated channels (4-20mA or 0-10V) |
| Power Supply | 24V DC (±10% tolerance) |
| Isolation | 2500V channel-to-channel isolation |
| Operating Temperature | -20°C to +55°C (industrial grade) |
| Dimensions | 9.5” x 6.5” x 1.0” (241mm x 165mm x 25mm) |
| Weight | 1.5 lbs (0.68 kg) |
| Communication Protocol | Direct interface with Mark IV control modules |
| Mounting | Rack-mounted with retention levers |
| Input Compatibility | TTL/CMOS digital signals |
Main Features and Advantages
Precision Signal Conversion: The DS3800DOWA1A1A’s 12-bit DAC ensures accurate translation of digital commands into analog outputs, critical for maintaining turbine speed, fuel flow, and temperature control. Its trimpots allow calibration of output offsets and gains, reducing dependency on external signal conditioners.
Rugged Industrial Design: Built with an 800Vdc isolation capacitor and EMI-resistant components, the board withstands harsh environments common in power generation and oil & gas facilities. Its 2500V channel isolation prevents cross-talk and signal degradation.
Modular Integration: The 34-pin connector and standardized form factor enable seamless integration with Mark IV control racks. The board’s jumpers support configurable voltage/current outputs, making it compatible with legacy and modern actuators.
Safety-Centric Design: A 30-second discharge period for the high-voltage capacitor protects technicians during maintenance. Proper grounding guidelines and anti-static packaging ensure safe handling.
Application Areas
Power Generation: In gas turbine control systems, the DS3800DOWA1A1A converts digital commands from the Mark IV controller into analog signals for fuel valves and governor actuators, optimizing power output and efficiency.
Oil and Gas: Deployed in offshore platforms, this module controls subsea choke valves and hydraulic pumps by translating digital control signals into precise analog outputs, ensuring reliable wellhead operations.
Industrial Automation: Used in manufacturing plants, the DS3800DOWA1A1A regulates conveyor belts and robotic arms by converting PLC commands into analog voltage/current signals, enabling smooth and accurate motion control.
Water Treatment: Integrates with SCADA systems to adjust chemical dosing pumps and valve positions based on digital inputs, ensuring compliance with environmental standards.
Related Products
- DS3800HALE: An analog output board that complements the DS3800DOWA1A1A by providing additional channels for high-precision actuator control.
- DS3800DOWC: A high-frequency pulse amplifier daughter board for specialized applications requiring amplified signals in extreme environments14.
- DS3800DOAA1A1B: An operational amplifier controller board that enhances signal conditioning for complex analog input/output systems210.
- DS3800NCIC: A current isolator module that safeguards the DS3800DOWA1A1A from ground loops and noise in high-interference environments.
- DS3800NPMB: A precision multiplier board for advanced arithmetic operations, ideal for systems requiring real-time data manipulation.
Installation and Maintenance
Pre-Installation Preparation:
Ensure the control rack is grounded and powered off. Verify the 24V DC power supply meets ±10% tolerance. Route signal cables away from power lines to minimize EMI, following GE’s recommended guidelines. Use anti-static wrist straps during handling to protect sensitive components.
Ensure the control rack is grounded and powered off. Verify the 24V DC power supply meets ±10% tolerance. Route signal cables away from power lines to minimize EMI, following GE’s recommended guidelines. Use anti-static wrist straps during handling to protect sensitive components.
Maintenance Recommendations:
- Calibration: Annually check trimpot settings using a calibrated multimeter to ensure output accuracy. Reapply protective glue to trimpot screws after adjustments.
- Inspection: Visually inspect connectors for corrosion or loose pins. Replace damaged ribbon cables immediately to avoid signal loss.
- Safety Checks: Allow 30 seconds for the 800Vdc capacitor to discharge before servicing. Test isolation resistance periodically to confirm 2500V integrity.
Product Guarantee
The GE DS3800DOWA1A1A comes with a 1-year warranty covering manufacturing defects. We provide comprehensive technical support, including troubleshooting guides and firmware updates, to ensure seamless integration. With spot inventory availability, orders are processed within 3 days of payment, backed by rigorous testing to guarantee functionality. Our commitment to quality ensures the DS3800DOWA1A1A meets GE’s original specifications, delivering consistent performance in mission-critical industrial applications.
HS:7326909000
Contact info
- WhatsApp: +86 18030182217
- Email: sandydcsplc@gmail.com
- Phone: +86 18030182217
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