Product Overview
The Yokogawa SAI143-H03 is a 16-channel analog input module engineered for use within the ProSafe-RS safety control system. Specially designed to accept 4 to 20 mA current inputs from field instrumentation, it integrates HART communication, enabling simultaneous process signal acquisition and device diagnostics. The module is robustly isolated and ideal for high-reliability and safety-critical applications in process automation environments like oil & gas, power generation, and chemical plants.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SAI143-H03 |
| Input Channels | 16 channels (individually isolated per module) |
| Input Type | Current input (4 to 20 mA) |
| Permissible Input Range | 0 to 25 mA |
| Input Impedance (Power ON) | 250 Ω + voltage drop in input protection circuit (0.45 V max drop) |
| Input Impedance (Power OFF) | ≥ 500 kΩ |
| Rated Accuracy | ±16 µA (0.05 to 23 mA, style code S3 or later) |
| Data Update Frequency | 40 ms |
| Temperature Drift | ±16 µA/10°C |
| Withstand Voltage | 1.5 kV AC (Input signal to system, 1 min) |
| Transmitter Power Supply | 16.15 V min at 20 mA, 26.4 V max at 0 mA (max current 25 mA) |
| Power Supply Channels | 2-wire or 4-wire, channel-by-channel selectable |
| Power Consumption (5V) | 320 mA |
| Power Consumption (24V) | 550 mA |
| External Connections | Pressure clamp terminal / MIL cable / Dedicated signal cable |
| HART Communication | Supported (One modem per module; one device at a time) |
| Weight | 0.34 kg |
| Dimensions (W x H x D) | 130 x 107.5 x 32.8 mm |
Applications
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Industrial process control in oil & gas, petrochemical, and chemical industries
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Safety instrumentation systems within emergency shutdown applications
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Power generation plants (thermal, nuclear, hydro)
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High-availability input collection for DCS and SIS environments
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Monitoring and diagnostic communication with HART-enabled transmitters
Key Advantages
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High Accuracy: Maintains tight measurement tolerances even in the low current range down to 0.05 mA
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Full HART Compatibility: Supports device diagnostics and configuration through PRM integration
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Isolation & Safety: 1.5 kV isolation between system and input channels ensures operational safety
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Dual-Redundancy Capable: Enhances system availability by allowing redundant configurations
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Fast Response: 40 ms update time ensures real-time process visibility
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Flexible Wiring Options: Compatible with both 2-wire and 4-wire transmitter configurations
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Compact Form Factor: Space-efficient installation in control cabinets
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Surge Protection & False Insertion Options: Configurable for enhanced safety and field robustness
Frequently Asked Questions (FAQ)
Q1: What signal types does the SAI143-H03 accept?
A1: It accepts analog current inputs ranging from 4 to 20 mA, with an extended permissible range of 0 to 25 mA.
Q2: Can this module be used in hazardous environments?
A2: Yes, explosion-protected versions are available via specific suffix codes (e.g., “E” or “F”).
Q3: Does it support HART communication?
A3: Yes, the H03 variant integrates HART communication compliant with HART Protocol Revision 5.7.
Q4: How many HART devices can be connected to the module?
A4: One HART device can be connected per input channel, but communication occurs with one device at a time due to a single modem.
Q5: What is the input update rate?
A5: The data update frequency is 40 milliseconds.
Q6: Is the module isolated?
A6: Yes, the entire module is galvanically isolated from the system and other channels.
Q7: What are the installation options for the terminal connections?
A7: It supports pressure clamp terminals, MIL cable, or dedicated signal cables, with various suffix and option codes.
Q8: What is the operating temperature range?
A8: When equipped with the appropriate suffix (e.g., “3” or “C”), the module supports operation from -20°C to +70°C.
Q9: Can I use it in a dual-redundant configuration?
A9: Yes, dual redundancy is supported for enhanced reliability.
Q10: What kind of diagnostic capabilities does HART communication enable?
A10: It enables device-level diagnostics, configuration, and partial stroke testing (when applicable), viewable via Yokogawa’s PRM system.
Recommended Related or Series Models
| Model | Description | Input Type | Channels | HART | Weight | Dimensions (mm) |
|---|---|---|---|---|---|---|
| SAI143-S03 | Analog Input Module (no HART) | 4–20 mA | 16 | No | 0.34 kg | 130 x 107.5 x 32.8 |
| SAV144-H03 | Analog Voltage Input Module with HART | 1–5 V / 1–10 V | 16 | Yes | 0.24 kg | 130 x 107.5 x 32.8 |
| SAT145-S06 | TC/mV Input Module | Thermocouple/mV | 16 | No | 0.47 kg | 130 x 107.5 x 32.8 |
| SAR145-S06 | RTD Input Module | RTD (Pt100, Ni100) | 16 | No | 0.47 kg | 130 x 107.5 x 32.8 |
| SAI533-H06 | Analog Output Module with HART | 4–20 mA | 8 | Yes | 0.26 kg | 130 x 107.5 x 32.8 |
| SAI533-S06 | Analog Output Module (Standard, no HART) | 4–20 mA | 8 | No | 0.26 kg | 130 x 107.5 x 32.8 |
Recommended Popular Yokogawa Modules
| Model | Description | Type | Channels | HART | Weight | Dimensions (mm) |
|---|---|---|---|---|---|---|
| SAI143-H03 | Analog Input Module with HART | 4–20 mA | 16 | Yes | 0.34 kg | 130 x 107.5 x 32.8 |
| SAI533-H06 | Analog Output Module with HART | 4–20 mA | 8 | Yes | 0.26 kg | 130 x 107.5 x 32.8 |
| AAI143-H50 | FOUNDATION Fieldbus AI Module | Fieldbus (FF) | 16 | Yes | ~0.3 kg | Similar size |
| AAI543-H00 | FOUNDATION Fieldbus AO Module | Fieldbus (FF) | 8 | Yes | ~0.3 kg | Similar size |
| ADV551-P00 | Digital Input Module for CENTUM VP | DI | 16 | N/A | 0.27 kg | ~120 x 100 x 35 |
| AAR181-S00 | Sequence of Events (SOE) Input Module | SOE | 16 | N/A | 0.28 kg | ~130 x 107.5 x 32.8 |
Company Information
E-mail: [email protected]
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Add: Alishan Building, 2 Lvling Rd, Siming District, Xiamen, Fujian, China, 361006
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