DS3800NTBH - Monitoring Control Analog I/O Module

SPECIFICATIONS:

Part No: DS3800NTBH
Manufacturer: General Electric
Product Type: Monitoring Control Analog I/O Module
Input Type: 4–20 mA, 0–10 V, RTD
Output Type: 4–20 mA
Resolution: 12-bit
Input Channels: 8 to 16 Channels
Operating Mode: Simplex
Output Channels: 4 to 8
Series: Mark IV
Isolation Voltage: 1500 V
Input Range: ±10 V,
Availability: In Stock
Current Range: +/-20mA
Dimensions: 7.14 × 4 × 1.5 in
Operating Temperature: 0 to 50°C
Country of Origin: USA

FUNCTIONAL DESCRIPTION:

DS3800NTBH is a Monitoring Control Analog I/O Module manufactured and designed by General Electric and is part of the Mark IV Series used in GE Speedtronic gas turbine control systems. Analog input channels accept standard industrial signals such as 4-20 mA or 0-10 V and perform high-resolution (typically 16-bit) A/D conversion for real-time data processing. Input signal conditioning includes cold junction compensation, filtering, and linearization to ensure accurate representation of process variables. The analog output channels are capable of sourcing 0–20 mA signals, configurable for 4-20 mA operation, with DAC resolution of up to 16 bits. Each output includes feedback monitoring for open-loop detection, load compliance, and current verification. Electrical isolation is maintained between channels and system logic to prevent ground loops and signal distortion.

INSTALLATION:

The module is typically DIN-rail or chassis-mounted and mates directly with a designated terminal board or backplane assembly, ensuring proper alignment with high-density edge connectors for signal and power interfacing. All installations must be performed with the system power isolated to prevent transient damage or signal corruption. Field instrumentation wiring utilizing shielded twisted-pair cables for analog signal integrity- is terminated onto screw-clamp or compression terminals, following strict adherence to signal polarity, channel assignment, and grounding topology.

OPERATION:

The Monitoring Control Analog I/O Module operates by continuously sampling analog signals from turbine field instruments such as thermocouples, pressure transducers, and speed sensors. It converts these analog signals into precise digital values using high-resolution analog-to-digital converters (ADCs). The module applies signal conditioning, filtering, amplification, and isolation to ensure accurate and noise-free data. Processed data is then communicated to the turbine control system’s central processor for real-time monitoring, diagnostics, and control decisions. The module also generates analog output signals to control actuators like valves and fuel controls, facilitating closed-loop feedback for stable turbine performance.

WOC offers the largest stock of replacement parts for GE Speedtronic Gas Turbine Control Systems, including new, unused components as well as fully tested and certified rebuilt boards, all backed by a reliable warranty. In addition to supplying high-quality parts, we provide expert repair services to restore faulty control boards to OEM standards, ensuring optimal performance and longevity. Our experienced team is available around the clock to support your OEM needs, offering prompt technical assistance and guidance to keep your turbine control systems running smoothly. Committed to minimizing downtime and maximizing system reliability, WOC delivers fast, efficient, and cost-effective solutions tailored to your automation requirements. For pricing, availability, or repair inquiries, please contact our knowledgeable team by phone or email.

FREQUENTLY ASKED QUESTIONS:

What is the input signal range supported by the analog input channels?

The module typically supports an input voltage range of ±10 V and current inputs of 4–20 mA, configurable depending on the sensor and application requirements.

Are the output analog signals linear and scalable?

Yes, analog output channels provide linear and scalable voltage or current signals, typically 0–10 V or 4–20 mA, compatible with standard actuator input requirements.

What communication layer and protocol stack does the module support for integration?

The module interfaces through a parallel bus with address, data, and control lines compliant with GE Mark IV proprietary protocol. Timing parameters conform to strict setup and hold times per MIL-STD-1553B guidelines, ensuring robust data integrity in noisy industrial environments.