The Yokogawa SAI533 is a high-density analog output module (AO module) used in Yokogawa ESD, F&G (Fire & Gas), BMS, HIPPS, and safety-related control systems, as well as selected CENTUM / safety node architectures.
It is designed to output standard 4–20 mA control signals to field devices such as control valves, actuators, and smart positioners. With 8-channel isolated outputs, the SAI533 ensures stable signal delivery in safety-critical automation environments where precision and reliability are essential.
This module is widely used in process safety systems and high-integrity industrial control applications, especially in oil & gas, petrochemical, and power generation industries.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Yokogawa |
| Model | SAI533 |
| Product Type | Analog Output Module |
| Output Type | 4–20 mA current output |
| Channels | 8 channels (isolated) |
| Signal Range | 1.25 – 23 mA (extended range) |
| Accuracy | ±48 µA |
| Data Update Time | ~40 ms |
| Load Resistance | 230 – 600 Ω |
| Isolation | Channel-to-channel isolation |
| Communication | Safety node / DCS internal bus |
| HART Support | Available (depending on suffix) |
| Redundancy | Supported (dual configuration optional) |
| Power Consumption | 5 V / 24 V system dependent |
SAI533 is designed for high-precision analog control output in safety instrumented systems (SIS) with strong electrical isolation and stable performance.
Physical Characteristics
| Item | Specification |
|---|---|
| Dimensions (W × H × D) | Approx. 105 × 136 × 19 mm (varies by terminal type) |
| Weight | Approx. 0.26 – 2.2 kg (configuration dependent) |
| Mounting Type | Rack / safety node / control cabinet |
| Structure | Modular plug-in I/O card |
| Wiring Interface | Terminal block / MIL cable options |
Recommended Related Models
- Yokogawa SAI533-H63 – HART-enabled variant
- Yokogawa SAI533-H33 – standard analog output version
- Yokogawa ADV551 – digital output module
- Yokogawa AAI141 – analog input module
- Yokogawa SDV series – safety digital I/O modules
Popular Yokogawa Models
- Yokogawa SAI533 – 8-channel analog output module
- Yokogawa ADV161 – digital input module
- Yokogawa ADV551 – digital output module
- Yokogawa AAI141 – analog input module
- Yokogawa CENTUM VP – DCS control platform
