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SPECIFICATIONS:
Part Number: DS3820ATMA
Manufacturer: General Electric
Series: Mark IV
Product Type: Analog Test Module
Test Signal Type: DC Voltage
Voltage Output Range: 0�10 VDC
Output Stability: Low drift
Signal Linearity: Precision linear output
Function: Analog signal test and simulation module
Signal Types Supported: Voltage (0-10 VDC)
Number of channels: 12
Connector Type: Edge connector
Operating Temperature: -45�C to +55�C
Size: 8.24 cm high x 4.16 cm
Repair: 3-7 days
Availability: In Stock
Weight: 2 lbs
Country of Origin: United States
FUNCTIONAL DESCRIPTION:
DS3820ATMA is an Analog Test Module manufactured and designed by General Electric as part of the Mark IV Series used in GE Speedtronic Gas Turbine Control Systems. Turbine control systems rely on a multitude of sensors and actuators to regulate parameters such as temperature, pressure, and speed. The ATM serves as the interface between these sensors and actuators and the central control unit, enabling real-time monitoring and adjustments. The integrity of turbine operations is synonymous with safety and reliability. By providing accurate data acquisition and control capabilities, ATM contributes to the safe and efficient operation of turbines, minimizing the risk of malfunctions and downtime. The module allows technicians to inject known analog signals (e.g., 0�10 VDC, �5 V, 4�20 mA) into specific channels to evaluate loop integrity, signal scaling, sensor calibration, and processor response. Internally, the module features precision resistors, isolation amplifiers, and noise-suppression components to ensure high accuracy and minimal signal distortion during diagnostic procedures.
COMPONENTS OF ANALOG TERMINAL MODULE:
Analog Input Section: The analog input section of ATM facilitates the conversion of physical parameters into electrical signals. This section typically comprises sensor interfaces, signal conditioning circuits, and analog-to-digital converters (ADCs), ensuring precise measurement and transmission of data.
Analog Output Section: Conversely, the analog output section of the ATM converts digital control signals from the central unit into analog signals suitable for actuator control. This section includes digital-to-analog converters (DACs) and output amplifiers, ensuring accurate and responsive control of turbine components.
Communication Interface: The communication interface of the ATM enables seamless integration with the central control unit and other peripheral devices. Common communication protocols include Modbus, Profibus, and Ethernet, facilitating interoperability and data exchange.
FUNCTIONING OF ANALOG TERMINAL MODULE:
Signal Conversion and Processing: Upon receiving analog input signals from sensors, the ATM performs signal conditioning and conversion to digital format. Subsequently, digital signal processing techniques are employed to filter, amplify, and process the acquired data before transmission to the central control unit.
Data Transmission and Reception: The processed data is transmitted to the central control unit via the communication interface, where it undergoes further analysis and action generation. Similarly, control commands from the central unit are relayed to actuators through the ATM's output section, ensuring precise control of turbine operations.
World of Controls maintains the largest inventory of replacement parts for GE Speedtronic turbine control systems, including Mark I to Mark VI series. We offer both unused and professionally rebuilt components, fully tested and backed by a warranty, to ensure system reliability and minimize downtime. Our team of experienced engineers is available 24/7 to support your OEM and automation needs, from part identification and system diagnostics to integration assistance. Whether you require hard-to-find legacy modules or repair services, WOC is committed to delivering fast, reliable solutions. For pricing, availability, or technical support, please get in touch with us via phone or email.
What is DS3820ATMA?
DS3820ATMA is an Analog Test Module used in GE Speedtronic Mark IV gas turbine control systems. It allows technicians to inject test signals for checking and calibrating analog input and output circuits. The module helps verify sensors, wiring, and control logic without disconnecting field devices. This supports reliable turbine operation and accurate system diagnostics.
Which signal types are supported?
DS3820ATMA supports analog DC signal testing commonly used in turbine control applications. It is designed to simulate reference signals required for validating analog input and output loops. The module provides stable and precise signal injection for calibration purposes. This ensures correct control system response during testing.
What is the response time of DS3820ATMA?
DS3820ATMA provides fast signal response suitable for real-time testing of analog control loops. Changes in injected signals are reflected immediately in the control system for accurate verification. This allows technicians to evaluate dynamic system behavior effectively. The response speed supports precise troubleshooting and calibration.
