Description

Samsung SPAI-16 16-Channel Analog Input Module (SSAS-Pro Series)

Technical Specifications

• Product Model: SPAI-16
• Brand: Samsung Heavy Industries SSAS-Pro Marine & Industrial Monitoring System
• Warranty: One Year
• Power Supply: 24 V DC industrial control power supply, low power consumption for continuous rack operation
• Operating Temperature: -25°C to 70°C (-13°F to 158°F)
• Storage Temperature: -40°C to 85°C (-40°F to 185°F)
• Response Time: Filtered analog signal sampling, synchronous backplane bus cyclic data conversion
• Protection Class: IP20 enclosure, full opto-electrical isolation, EMC surge & ESD suppression, wire break/short-circuit detection per channel
• Accuracy Class: 12-bit A/D conversion resolution, stable linear conversion for process sensor signals
• Selectable Input Ranges Voltage: DC 0–5V, 1–5V, 0–10V, -10~+10V Current: DC 0–20mA, standard 4–20mA loop
• Rated Power: ≤1.8W steady-state power draw
• Communication Interface: Dedicated internal backplane bus for RSPC-X32 master controller, screw terminal field wiring block
• Supported Protocol: Samsung SSAS-Pro proprietary rack bus protocol
• Overload Capacity: Per-channel overvoltage clamping, earth fault detection, module self-diagnosis, reverse polarity protection
• Mounting & Dimension: Standard DIN rail clip-on installation, matched with SPDI-24, SPRI-16 series I/O modules
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Product Overview

The SPAI-16 is a 16-channel universal analog input expansion module belonging to Samsung SSAS-Pro centralized alarm and monitoring control system, perfectly paired with RSPC-X32 main CPU controller, and forms a complete I/O set together with SPDI digital input, SPRI Pt100 temperature input and SPAO analog output modules. It converts continuous analog signals from field transmitters such as pressure sensors, flow meters, liquid level transmitters and valve position feedback into digital values for the main controller to execute closed-loop regulation, parameter display and abnormal alarm judgment. Each independent channel supports freely switching between voltage and current signal modes to adapt to diverse industrial field instruments. Equipped with built-in open-circuit and short-circuit fault diagnosis, it can automatically report broken sensor cables or grounded wiring faults to the master unit, greatly simplifying on-site troubleshooting. The optocoupler isolation design thoroughly blocks high-frequency electromagnetic interference from inverters and power equipment, ensuring stable measurement accuracy in vibration-intensive, high-humidity harsh environments. The modular DIN rail stacking structure allows flexible expansion of analog acquisition points according to project scale, widely deployed in ship engine room automation, offshore platform auxiliary monitoring, industrial plant pump/valve control systems and power station auxiliary equipment supervision. It serves as the core analog signal acquisition gateway for Samsung SSAS-Pro safety monitoring platform, delivering reliable high-precision process data collection for critical marine and heavy industry automation systems.