Technical Overview
The Yokogawa SAV144-S03 functions as a high-density analog input module for the CENTUM VP and ProSafe-RS distributed control systems. This module provides 16 isolated channels that accept 1–5 V or 1–10 V DC voltage signals from field transmitters and sensors. Its 40 ms data update frequency ensures timely acquisition for process control loops. The SAV144-S03 also supports dual-redundant configurations for mission-critical safety applications.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Yokogawa Electric Corporation |
| Product Type | Analog Voltage Input Module |
| System Compatibility | CENTUM VP, ProSafe-RS |
| Input Channels | 16 (module-level isolation) |
| Rated Input Range | 1–5 V / 1–10 V DC (software-configurable) |
| Permissible Input Limit | ±30 V DC (overvoltage protection) |
| Input Impedance (Power ON) | 1 MΩ |
| Input Impedance (Power OFF) | 100 kΩ |
| Rated Accuracy | ±4 mV (1–5 V) / ±9 mV (1–10 V) |
| Temperature Drift | ±4 mV/10°C (1–5 V) / ±9 mV/10°C (1–10 V) |
| Data Update Frequency | 40 ms |
| Withstand Voltage | 1.5 kV AC (input to system, 1 min) |
| Current Consumption | 300 mA (5 V) / 140 mA (24 V) |
| External Connections | Pressure clamp terminal, MIL cable, KS1 cable |
| Dimensions (W x H x D) | 130 x 124 x 32.8 mm |
| Weight | 0.24–0.29 kg (depending on connection type) |
| Operating Temperature | -20°C to 70°C (S03 suffix) |
| Environmental Standard | ISA Standard G3 (conformal coating) |
Input Architecture and Signal Processing
The Yokogawa SAV144-S03 converts analog voltage signals into digital values for the controller’s use in monitoring and regulatory control. Its 16 channels share module-level isolation, meaning that a fault on one input will not affect the others. The 1 MΩ input impedance during normal operation prevents loading of the field transmitter, preserving signal integrity. Furthermore, the software-configurable range allows mixing of 1–5 V and 1–10 V transmitters across channels within the same module.
Environmental Resilience and Suffix Code
The S03 suffix specifies ISA Standard G3 conformal coating, which provides enhanced corrosion resistance for harsh plant environments. Additionally, the extended temperature range of -20°C to 70°C ensures reliable operation in outdoor cabinets or areas with high ambient heat. Consequently, this module suits applications in chemical plants, oil and gas facilities, and power generation stations.
Integration and Redundancy
The SAV144-S03 seamlessly integrates into Yokogawa CENTUM VP and ProSafe-RS system cabinets via its backplane interface. It supports hot-swapping, enabling module replacement without system shutdown. Furthermore, dual-redundant configurations enhance availability, as the system automatically switches to the backup module upon failure detection.
Details
| Weight | 0.24 kg |
|---|---|
| Dimensions | 130 × 124 × 32.8 mm |
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