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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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All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
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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.