The Yokogawa SAI143-S03 S1 is a 16-channel analog input module designed for high-reliability industrial automation systems. Moreover, it supports 4–20 mA signals with full module isolation, ensuring accurate and safe data acquisition. This module can also be configured in a dual-redundant setup, enhancing system reliability.
Key Features
- 16-Channel Analog Input: Each channel supports 4–20 mA signals with module isolation.
- High Accuracy: ±16 µA rated accuracy with minimal temperature drift (±16 µA/10°C).
- Transmitter Power Supply: Individual channel 2/4-wire configuration with voltage range 16.15–26.4 V and 25 mA current limit.
- ON/OFF Functionality: Supports resetting alarms from Fire and Gas devices for all channels in 2-wire mode.
- Data Update Frequency: 40 ms for fast and reliable signal processing.
- Environmental Robustness: Operates between -20°C to +70°C and complies with ISA Standard G3 for contamination resistance.
Electrical and Mechanical Specifications
| Specification | Details |
|---|---|
| Input Channels | 16 channels with module isolation |
| Rated Input Range | 4–20 mA |
| Permissible Input Range | 0–25 mA |
| Input Impedance (Power-ON) | 250 Ω + Current Value |
| Input Impedance (Power-OFF) | ≥500 kΩ |
| Voltage Drop in Protection Circuit | Max. 0.45 V (272.5–362.5 Ω) |
| Withstand Voltage | 1.5 kV AC (input to system) for 1 min |
| Power Consumption | 5 V: 320 mA; 24 V: 550 mA |
| Weight | 0.34 kg (with terminal block), 0.39 kg (with cable interface) |
Operating Conditions
- Temperature: Operating: -20 to +70°C, Storage: -40 to +85°C
- Humidity: 5%–95% (non-condensing)
- Contamination Resistance: ISA Standard G3
Model and Suffix Codes
| Model | Description |
|---|---|
| SAI143 | 16-channel analog input module (4–20 mA, isolated) |
| Suffix | Description |
|---|---|
| -S | Standard type |
| 3 | ISA Standard G3, temperature range -20 to 70°C |
| STYLE | S1 |
Applications
- Industrial Process Control: Reliable analog signal acquisition for DCS systems.
- Fire and Gas Systems: Supports alarm reset functions in 2-wire configuration.
- Harsh Environments: ISA G3 compliance ensures durability under contamination and temperature stress.
Details
| Weight | 0.34 kg |
|---|---|
| Dimensions | 130 × 323 × 323 mm |
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