Product Overview
The Yokogawa SAI143-S03 is a high-performance analog input module designed for use in safety instrumented systems (SIS) such as the ProSafe-RS platform. Specifically tailored to handle 4 to 20 mA current inputs from field instruments, the SAI143-S03 provides 16 isolated input channels with robust safety and signal integrity features. This model emphasizes operational reliability and flexibility, suitable for mission-critical industrial automation and process safety applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| 型号 Number | SAI143-S03 |
| Input Signal Type | Analog current input |
| Number / Channels | 16 channels (isolated) |
| Rated Input Range | 4 to 20 mA |
| Permissible Input Range | 0 to 25 mA |
| Input Impedance (Power ON) | 250 Ω + current-dependent value |
| Input Impedance (Power OFF) | ≥500 kΩ |
| Accuracy (SAI143-S) | ±16 µA (1 to 23 mA) |
| Temperature Drift | ±16 µA / 10°C |
| Data Update Frequency | 40 ms |
| Transmitter Power Supply | Min: 16.15 V @ 20 mA, Max: 26.4 V @ 0 mA |
| Output Current Limit | 25 mA |
| Withstand Voltage | 1.5 kV AC (input to system for 1 minute) |
| Power Consumption (5V/24V) | 320 mA / 550 mA |
| External Connections | Pressure clamp terminal, MIL cable, or signal cable |
| Redundancy 支持 | Yes (dual-redundant configuration possible) |
| Operating Temperature | -20°C to +70°C (with suffix code 3 or C) |
| 重量 | Approx. 0.34 kg |
| Dimensions | 130 x 107.5 x 32.8 mm |
Applications
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Safety Instrumented Systems (SIS) in process automation
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Oil & gas plants for critical sensor signal acquisition
-
Chemical and petrochemical facilities requiring intrinsic safety
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Power generation facilities for monitoring process instrumentation
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Pharmaceutical manufacturing environments with high safety demands
-
Industrial automation in hazardous locations
Advantages
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High Accuracy: Ensures precise analog current measurement with minimal drift
-
Signal Isolation: Each channel is electrically isolated, enhancing safety and reducing interference
-
Dual Redundancy 支持: Improves system reliability and fault tolerance
-
Transmitter Power Supply: Capable / powering 2-wire transmitters directly from the module
-
Compact Design: Space-saving installation with DIN-rail mounting capability
-
Robust Build: Designed for high-temperature industrial environments up to 70°C
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PRM 支持 (H version): Enables integration with Yokogawa’s Plant Resource Manager for diagnostic and configuration management
-
Fast Update Rate: 40 ms per channel ensures timely data for control and safety logic
常见问题 (FAQs)
Q1: What input signals does the SAI143-S03 support?
A1: The module supports 4 to 20 mA current signals, with a permissible input range / 0 to 25 mA.
Q2: Can this module power 2-wire transmitters directly?
A2: Yes, it provides transmitter power supply with a minimum / 16.15 V at 20 mA.
Q3: Is the SAI143-S03 suitable for high-temperature environments?
A3: Yes, with appropriate suffix codes (e.g., “3” or “C”), it supports ambient temperatures from -20°C to +70°C.
Q4: Is the module safe for use in explosion-hazard areas?
A4: Explosion-pro/ variants are available using specific suffix codes (e.g., “E” or “F”).
Q5: What kind / wiring connection is available?
A5: It supports pressure clamp terminals, MIL cables, and dedicated signal cable interfaces.
Q6: Can the SAI143-S03 be used in redundant configurations?
A6: Yes, the module supports dual-redundant configurations for enhanced system reliability.
Q7: What is the data update frequency / this module?
A7: The module updates input data every 40 milliseconds.
Q8: Does the SAI143-S03 include HART communication?
A8: Only the SAI143-H variant includes HART communication; the S03 standard variant does not.
Q9: How is input signal isolation achieved?
A9: Each / the 16 channels is electrically isolated from the system, ensuring safe and interference-free operation.
Q10: What is the weight and size / the SAI143-S03?
A10: The module measures 130 x 107.5 x 32.8 mm and weighs approximately 0.34 kg.
Related 型号s from the Same Series
| 型号 | 描述 | Channels | Input Type | Dimensions (mm) | 重量 (kg) |
|---|---|---|---|---|---|
| SAV144 | Analog Input Module (Voltage) | 16 | 1–5 V / 1–10 V | 130 x 107.5 x 32.8 | 0.24 |
| SAT145 | TC/mV Input Module | 16 | Thermocouple/mV | 130 x 159.8 x 32.8 | 0.47 |
| SAR145 | RTD Input Module | 16 | RTD (3-wire) | 130 x 159.8 x 32.8 | 0.47 |
| SAI533 | Analog Output Module (Current) | 8 | 4–20 mA | 130 x 107.5 x 32.8 | 0.26 |
| SAI143-H03 | Analog Input Module with HART | 16 | 4–20 mA | 130 x 107.5 x 32.8 | 0.34 |
| SAI143-C03 | High-density install version | 16 | 4–20 mA | 130 x 107.5 x 32.8 | 0.34 |
Popular Yokogawa 型号s
| 型号 | 描述 | Function | Dimensions (mm) | 重量 (kg) |
|---|---|---|---|---|
| PW402 | Power Supply Module | Power Supply | 130 x 107.5 x 32.8 | 0.42 |
| CP451-10 | CPU Module | Controller | Varies by rack | 0.50 |
| ALR121-S01 | Alarm Relay Module | Digital Output | 130 x 107.5 x 32.8 | 0.36 |
| ADV151-P00 | Digital Output Module | DO (Relay) | 130 x 107.5 x 32.8 | 0.32 |
| AAI543-H50 | Analog Input Module with HART | AI (Current) | 130 x 107.5 x 32.8 | 0.35 |
| AAI841-H00 | Universal Input Module | AI (Universal) | 130 x 107.5 x 32.8 | 0.38 |
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