DEM401 STN ATLAS Digital Input Module

The STN ATLAS DEM401 is a marine-grade digital input module for Lyngsø Marine / STN Atlas alarm and monitoring systems, providing 8–32 channels of 24 V DC optically isolated dry/wet contact inputs with backplane bus communication, designed to acquire switch status signals from engine room equipment in harsh maritime environments per DNV/ABS/IEC 60945standards.

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Description

Technical Specifications
  • Brand
    STN ATLAS
  • Model
    DEM401
  • Product Name
    Marine-Grade Digital Input Module
  • Country of Origin
    Germany
  • HS Code
    8537101100
  • Dimensions
    140mm×110mm×45mm
  • Weight
    0.65kg
  • Operating Temperature
    -20°C to +60°C
  • Storage Temperature
    -40°C to +80°C
  • Power Supply
    24V DC
  • Warranty
    12 month
  • Product Status
    New and original

STN ATLAS DEM401 Product Introduction and Technical Parameters

Electrical Technical Parameters

Input Parameters: The module adopts industrial 24V DC standard power supply input, supporting on-board DC power distribution system standards. It is equipped with multi-channel isolated digital input interfaces, which can stably collect switching status signals, sensor start-stop signals and equipment state feedback signals from on-site marine equipment. Each input channel features independent isolation design, with reverse connection protection and surge suppression functions, effectively avoiding signal damage and equipment failure caused by on-site voltage fluctuation and signal impact.

Output Parameters: It outputs standardized digital signal data that conforms to marine industrial protocols, realizing stable and low-delay signal transmission and data feedback to the upper-level main control system. It can accurately upload on-site equipment switching state and operating status information, supporting real-time data linkage and logic judgment of the automation system. The signal output has high stability and strong anti-interference ability, ensuring no data loss or signal distortion during long-distance transmission in ship cabins.

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Environmental Adaptation Parameters

Environmental Adaptation Parameters

Environmental Adaptability: Compliant with international marine industry electromagnetic compatibility and environmental resistance standards. It has excellent salt fog resistance, moisture resistance, dust resistance, vibration resistance and anti-electromagnetic interference capabilities. The sealed industrial-grade circuit structure can resist harsh marine environmental erosion and electromagnetic interference generated by ship power equipment, adapting to complex and changeable ship cabin and offshore platform operating environments.

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Core Product Characteristics

Core Product Characteristics

This module adopts highly integrated marine-grade circuit design with compact structure and high integration, which reduces the occupation of cabinet space and simplifies on-site wiring. All input channels adopt isolated design to eliminate crosstalk between signals and improve the accuracy and stability of signal acquisition. It features ultra-strong marine environmental adaptability, specially optimized for salt fog, humidity and vibration interference in ship working conditions, far exceeding the environmental resistance level of ordinary industrial modules. It has built-in circuit self-protection and signal filtering functions, with strong fault tolerance and anti-interference performance. In addition, it has good system compatibility, matching STN ATLAS series marine automation systems and most mainstream ship control systems, with strong versatility and replaceability.

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Main Functions

Main Functions

It realizes real-time and high-precision acquisition of multi-channel digital switching signals of ship and offshore platform equipment, including equipment start-stop status, switch on-off state and sensor operating signals. It completes signal filtering, sorting and standardized transmission, providing accurate and reliable data basis for upper computer control logic judgment and equipment monitoring. It supports long-term stable signal monitoring of ship power distribution systems, mechanical transmission equipment and safety protection devices. It has basic signal abnormality detection functions, which can feed back abnormal signal state in real time to assist system fault early warning. Meanwhile, it supports long-term uninterrupted operation, meeting the continuous monitoring requirements of ship automation systems during navigation and operation.

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Product Advantages

Product Advantages

Firstly, it adopts professional marine-grade design, with superior salt fog resistance, vibration resistance and moisture resistance, which can stably adapt to harsh marine working environments that ordinary industrial modules cannot withstand. Secondly, the multi-channel isolated input design effectively avoids signal crosstalk and interference, ensuring high accuracy and stability of on-site signal acquisition. Thirdly, the compact modular structure facilitates quick installation, maintenance and spare part replacement, reducing ship equipment maintenance costs and downtime. Fourthly, it has perfect circuit protection and signal filtering functions, with low failure rate and long service life, meeting the long-term uninterrupted operation requirements of ship equipment. Finally, it has strong system compatibility and universal applicability, suitable for new ship system construction and old ship automation system renovation and upgrading projects.

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Application Scenarios

This module is mainly applied in signal acquisition and status monitoring of marine and offshore industrial automation systems. It is widely used for digital signal collection and state monitoring of power distribution equipment, mechanical transmission equipment and auxiliary equipment on various commercial ships, cargo ships and engineering ships. It is applicable to signal monitoring and data acquisition of safety monitoring systems, fire alarm systems and hull auxiliary control systems of offshore drilling platforms and marine engineering equipment. In addition, it can be used for the renovation, upgrading and spare part replacement of old STN ATLAS ship automation control systems, providing stable and reliable signal acquisition support for marine intelligent control and equipment operation monitoring systems.

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