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- Yokogawa
- SAI143-H63
- Analog Input Module
- Japan
- 130 × 107.5 × 32.8 mm
- 0.39kg
- Xiamen, China
- New & In Stock
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1. Product Parameters – Yokogawa SAI143-H63
| Parameter | Specification |
|---|---|
| Model | SAI143-H63 |
| Type | Analog Input Module |
| System | ProSafe-RS (Safety Instrumented System) |
| Input Channels | 16 (isolated per module) |
| Input Signal | 4–20 mA (rated); 0–25 mA (allowed) |
| Input Impedance (Powered) | ~250 Ω + internal voltage drop |
| Input Impedance (Unpowered) | ≥ 500 kΩ |
| Accuracy | ±16 µA (within 0.05–23 mA range) |
| Temperature Drift | ±16 µA / 10°C |
| Data Update Rate | 40 ms |
| Transmitter Supply Voltage | 16.15 V (at 20 mA) to 26.4 V (at 0 mA) |
| Max Loop Current | 25 mA |
| Channel Configuration | Supports 2-wire / 4-wire |
| Isolation | 1.5 kV AC (1 min) between input and system |
| Power Consumption | Approx. 320 mA (5V); 550 mA (24V) |
| HART Support | Yes |
| Diagnostic Support | Yes (via PRM – Plant Resource Manager) |
| Connection Options | Pressure clamp, MIL cable, signal cable adapter |
| Operating Temperature | –20°C to +70°C |
| Humidity Range | 5% to 95% RH (non-condensing) |
| Dimensions | Approx. 130 × 107.5 × 32.8 mm |
| Weight | Approx. 0.34 kg – 0.39 kg (depending on connector) |
2. Product Overview
The Yokogawa SAI143-H63 is a 16-channel analog input module designed for high-integrity process control and safety applications within the ProSafe-RS Safety Instrumented System (SIS) platform. Supporting standard 4–20 mA signals and integrated HART protocol, it delivers precision measurements with full module-level isolation.
Built to function reliably in extreme environments, the SAI143-H63 ensures safe, real-time analog signal acquisition in critical industries such as oil & gas, petrochemicals, power generation, and more. It also integrates smoothly with Yokogawa’s engineering and diagnostic systems, including PRM (Plant Resource Manager).
3. Applications
The SAI143-H63 is used in a wide range of industrial applications that require high safety integrity and robust data acquisition:
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Oil & Gas – Monitoring pressure, flow, and temperature in upstream and downstream operations.
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Petrochemical Plants – Process control and emergency shutdown systems.
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Power Generation – Steam, gas turbines, and auxiliary process monitoring.
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Chemical Processing – Safety interlocks and real-time process diagnostics.
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Pharmaceutical and Food Production – Process automation with integrated safety compliance.
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Hazardous Locations – Environments requiring explosion-proof and redundant signal isolation.
4. Product Advantages
High Accuracy:
Precision analog acquisition with ±16 µA accuracy and low drift across temperature fluctuations.
HART Integration:
Allows smart field devices to be configured, monitored, and diagnosed remotely via HART communication.
Flexible Configuration:
Supports both 2-wire and 4-wire devices, with unified control for transmitter power supply per channel group.
High Isolation & Reliability:
Offers 1.5 kV AC isolation between inputs and the system, reducing risks from ground loops or signal interference.
Robust Environmental Tolerance:
Functions in –20°C to +70°C with 95% humidity resistance. Compliant with industrial corrosion standards (ISA G3).
Multiple Wiring Options:
Compatible with pressure clamps, MIL cables, and signal cable adapters for varied field environments.
Compact & Lightweight:
Compact size and sub-0.4 kg weight make it ideal for dense I/O cabinet installations.
5. Brand & Series
-
Brand: Yokogawa
-
Series: ProSafe-RS Safety System
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Module Series: SAI143 Series (Analog Input Modules)
The SAI143 modules form part of Yokogawa’s larger SIS solution set, specifically designed for high-reliability process safety.
6. Related Models (Same Series or Functional Category)
| Model | Description | Channels | Input Range | Weight (kg) |
|---|---|---|---|---|
| SAI143-S33 | Standard analog input without HART | 16 | 4–20 mA | ~0.40 kg |
| SAI143-H53 | Analog input with HART; slightly different environmental specs | 16 | 4–20 mA | ~0.34 kg |
| SAI143-H63/A4D00 | Variant with dual-redundant terminal blocks | 16 | 4–20 mA | ~0.39 kg |
| SAI143-H63/PRP | Supports Parallel Redundancy Protocol (PRP) for fault tolerance | 16 | 4–20 mA | ~0.34 kg |
| AAI143-H50 | Similar functionality in AAI series; variant environmental specs | 16 | 4–20 mA | ~0.35 kg |
7. Popular Models from the Same Brand
| Model | Description | Channels | Signal Type | Weight (kg) |
|---|---|---|---|---|
| SAI533-H33 | Analog output module; supports 4–20 mA output | 8 | Analog Output | ~0.34 kg |
| SAI143-S53 | Input module with enhanced safety or ESD features | 16 | 4–20 mA | ~0.35 kg |
| AAI143-S50 | General-purpose analog input for non-SIS systems | 16 | 4–20 mA | ~0.38 kg |
| SAV144 | Analog voltage input (1–10 V) module | 16 | 1–10 V | ~0.36 kg |
| SDV144-S63 | Digital input module with SOE (Sequence of Events) logging | 16 | Digital Input | ~0.35 kg |
8. FAQ (10 Questions & Answers)
Q1: What type of signals does the SAI143-H63 accept?
A1: It accepts analog current signals, specifically 4–20 mA, with a permissible range of 0–25 mA per channel.
Q2: Does the SAI143-H63 support HART communication?
A2: Yes, the “-H” in the model indicates full HART compatibility, allowing for remote diagnostics and device configuration.
Q3: Can it operate in extreme environments?
A3: Yes, it is rated for –20°C to +70°C and 5–95% relative humidity (non-condensing), making it suitable for harsh industrial settings.
Q4: Can I mix 2-wire and 4-wire devices on the same module?
A4: Each channel can be configured independently for 2-wire or 4-wire input. This offers great flexibility for field integration.
Q5: Is the transmitter power supply switchable?
A5: Yes, the module allows unified control of transmitter power supply for all 16 channels when in 2-wire mode.
Q6: What isolation level does the module provide?
A6: It offers 1.5 kV AC isolation between input channels and the system, reducing risk of interference or fault propagation.
Q7: What is the data update rate of the module?
A7: The module refreshes data every 40 milliseconds, ensuring timely input delivery to the safety logic.
Q8: How much does the module weigh?
A8: Depending on connection method, the weight ranges from 0.34 kg to 0.39 kg.
Q9: Is it safe to leave the module unpowered in a live circuit?
A9: Yes, when unpowered, the input impedance is ≥ 500 kΩ, which prevents loop loading or signal disruption.
Q10: Can this module be used in redundant safety systems?
A10: Yes, variants like the SAI143-H63/PRP support redundant protocols such as Parallel Redundancy Protocol (PRP).
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Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
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24-hour after-sales service guarantee team, professional and standardized management service system.