Description
Product Description
Overview
The Yokogawa SAl143-S03 is a high-precision analog input module engineered for integration with the ProSafe-RS safety instrumented system. Designed to acquire and digitize analog signals from field devices such as transmitters, this module ensures reliable data acquisition in safety-critical environments where accuracy and system integrity are essential.
Technical Specifications
| Feature |
Specification |
| Model |
SAl143-S03 |
| Module Type |
Analog Input Module |
| Input Channels |
16 isolated channels |
| Input Current Range |
4 to 20 mA (permissible 0 to 25 mA) |
| Rated Accuracy |
±16 microamperes (for 1 to 23 mA range) |
| Data Update Rate |
40 ms |
| Input Impedance (Power ON) |
250 ohms |
| Input Impedance (Power OFF) |
≥500 kOhms |
| Withstand Voltage |
1.5 kV AC between input signals and system for 1 minute |
| Maximum Current Consumption |
320 mA (5V system), 550 mA (24V system) |
| Transmitter Power Supply |
Minimum 16.15 V at 20 mA, Maximum 26.4 V at 0 mA |
| Output Current Limit |
25 mA |
| Temperature Drift |
±16 microamperes per 10 degrees Celsius |
| External Connections |
Pressure clamp terminal, MIL cable, dedicated signal cable |
| Dimensions |
127 mm x 229 mm x 178 mm |
| Weight |
0.3 kg |
Applications
This module is ideal for use in safety-instrumented systems requiring high reliability, including chemical plants, power generation facilities, and process automation systems. Its isolated inputs and precision monitoring capabilities make it suitable for environments where accurate measurement and fault tolerance are critical.
FAQ
Q: Can this module handle signals beyond 20 mA?
A: Yes, the module can safely process signals up to 25 mA without damage, although optimal accuracy is achieved within 1–23 mA.
Q: What is the update speed of the input data?
A: The module updates analog input data every 40 milliseconds, ensuring near real-time monitoring.
Q: How does this module compare to SAl143-S02?
A: Compared to SAl143-S02, the S03 offers improved isolation between channels and higher precision, making it more suitable for critical safety applications.
