GE DS3820RTDB Resistance Temperature Detector Input Module

GE DS3820RTDB Resistance Temperature Detector Input Module

Part Number DS3820RTDB Manufacturer General Electric Country of Manufacture As Per GE Manufacturing Policy Series Mark VI/VIe Function Module Availability In StockGE Speedtronic Mark IV DS3820RTDB is an RTD Input Module and functions as an RTD Board. Temperature is measured by RTDs, or resistance temperature detectors, which have a ceramic or glass core wrapped in fine wire and protected by an outer casing. This board is held in place by two downward flanges and one upward turned flange on a metal carrier. Each corner of the carrier is factory drilled and tagged with the board's id number. Two vertical pin connectors and a number of capacitors are included on the circuit board. The RTD components are also included. The board surface has a waffle design printed on it and is drilled twice in each corner for mounting possibilities. The circuit board was connected to the carrier surface using four of these drill sites.

SPECIFICATIONS:

Part Number: DS3820RTDB
Manufacturer: General Electric
Series: Mark IV
Product Type: Resistance Temperature Detector Input Module
Dimensions: 3.6 × 2.45 × 1.1 in
Input Analog Signal Range: 5 to 1500 Ohms
Response Time: 100 milliseconds
A/D Conversion Resolution: 18 bits / 400-kilo samples per second
RTD Types: 0.00385, 0.00388, 0.00392
Common mode rejection: 100db at 50/60 Hz
Input connections: 2,3, or 4-wire
Max lead resistance: 50 ohms
nput protection: 120Vac.
Excitation current: 0.25mA
Operating Temperature: 4.4 - 60° C
Repair: 3-7 Days
Weight: 2 lbs
Country of Origin: USA
Availability: In Stock

FUNCTIONAL DESCRIPTION:

DS3820RTDB is a Resistance Temperature Detector Input Module manufactured and designed by General Electric as part of the Mark IV Series used in GE Speedtronic turbine control systems. The Resistance Temperature Detector (RTD) Input Module is a high-density device designed for accurate RTD sensor data acquisition. It features 8 independent inputs, each offering high reliability and galvanic isolation. The module includes built-in filtering, calibration, and analog-to-digital conversion, making the data ready for use by the Logic Module. Additionally, the RTD Input Module conducts continuous and thorough self-diagnostics to ensure the safety and integrity of its inputs and overall functionality.

FEATURES:

High-density 8-channel analog RTD inputs with built-in hardware redundancy and self-diagnostics for highly reliable operation, filtering, calibration, and random hardware failure detection.

Independent FPGA for analog input processing, self-diagnostics, and fail-safe functional behavior.

Robust self-diagnostics ensure high reliability and early fault detection with safety-focused fault management.

Segregation of input processing, self-diagnostics, and watchdog functions assure safety-critical functionality.

Galvanic isolation for signal inputs with robust and dedicated communication links to Logic Module for secure data transfer.

Inherent on-board diversity features eliminate common cause failure vulnerabilities.

FPGA technology ensures resilience to I&C obsolescence.

Support for 2, 3, and 4 wire configurations.

Support for 100 Ohm, 200 Ohm, and other input sensors.