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Product Introduction
The Yokogawa NFAR181-S50 RTD Input Module is a high-performance component designed for use in Yokogawa’s CENTUM series distributed control systems (DCS). It provides accurate and reliable temperature measurement by interfacing with resistance temperature detectors (RTDs). This module converts RTD signals into precise process data, which is essential for effective process control and monitoring in demanding industrial environments.
Engineered with Yokogawa’s commitment to quality and robustness, the NFAR181-S50 supports multiple RTD types, ensuring versatility across various temperature measurement needs. Its compact design and straightforward integration make it ideal for complex control systems requiring dependable, real-time temperature data.
Product Specifications
| Parameter | Details |
|---|---|
| Model Number | NFAR181-S50 |
| Product Type | RTD Input Module |
| Compatible Systems | Yokogawa CENTUM CS 3000/EX and related DCS |
| Input Type | RTD (Resistance Temperature Detector) |
| Supported RTD Types | Pt100, Pt1000, JPt100, and others |
| Input Channels | Typically 8 channels per module |
| Sampling Rate | Configurable, optimized for control applications |
| Accuracy | ±0.1°C (depending on sensor and setup) |
| Operating Temperature | 0 °C to 60 °C (operating) |
| Storage Temperature | -20 °C to 70 °C |
| Power Supply | Provided by host DCS rack |
| Communication Interface | Bus communication within the DCS |
| Dimensions (WxHxD) | 130 x 107.5 x 32.8 mm |
| Weight | 0.2 kg |
| Mounting | Rack-mounted module |
Applications
The NFAR181-S50 RTD Input Module finds its place in a wide variety of industries and applications where precise temperature measurement is critical:
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Oil & Gas: Monitoring temperatures in refining processes and pipeline systems.
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Power Generation: Temperature measurement in boilers, turbines, and cooling systems.
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Chemical Processing: Ensuring precise temperature control in reactors and storage tanks.
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Pharmaceuticals: Monitoring critical temperature points in production environments.
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Food & Beverage: Process temperature control for safety and quality assurance.
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Water Treatment: Temperature monitoring in filtration and purification systems.
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Pulp & Paper: Controlling drying and chemical processing temperatures.
Advantages
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High Accuracy: Supports multiple RTD types with fine precision, ensuring reliable temperature data.
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Seamless Integration: Fully compatible with Yokogawa CENTUM DCS, facilitating system-wide monitoring.
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Robust Design: Built to withstand industrial conditions with stable performance over time.
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Flexible Input: Can handle a variety of RTD sensors, adding versatility.
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Compact Form Factor: Saves space in control racks with its slim, modular design.
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Efficient Data Handling: Provides fast and stable signal processing optimized for real-time control.
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Ease of Maintenance: Designed for easy replacement and minimal downtime.
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Power Efficiency: Powered directly from the host rack, reducing additional power supply requirements.
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Long-Term Reliability: Yokogawa’s engineering ensures durability for continuous operation.
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Standard Compliance: Meets industrial safety and electromagnetic compatibility standards.
Frequently Asked Questions (FAQ)
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What types of RTDs are supported by the NFAR181-S50?
It supports Pt100, Pt1000, JPt100, and other common RTD types. -
How many input channels does this module have?
Typically, it provides 8 input channels per module. -
Can this module be used in hazardous environments?
The module itself is designed for installation in control rooms; for hazardous areas, additional protective measures are necessary. -
What is the operating temperature range of this module?
It operates reliably between 0 °C and 60 °C. -
How is this module powered?
It receives power from the host DCS rack, requiring no separate power supply. -
What is the accuracy of temperature measurement?
Accuracy is approximately ±0.1°C, depending on the sensor and installation conditions. -
Is the module hot-swappable?
Depending on the system configuration, some modules can be replaced without shutting down the entire system. -
What communication protocol does it use?
It communicates through the Yokogawa DCS internal bus system. -
What are the module’s physical dimensions?
130 x 107.5 x 32.8 mm. -
Can the module be configured remotely?
Yes, configuration and diagnostics are typically managed via the host DCS software.
Recommended Related Models (Same Series or Closely Related)
| Model Number | Description | Input Type | Channels | Notes |
|---|---|---|---|---|
| NFAR182-S50 | Thermocouple Input Module | Thermocouple | 8 | Compatible with CENTUM |
| NFAR183-S50 | Analog Input Module | 4-20 mA signals | 8 | For analog signals |
| NFAR184-S50 | Digital Input Module | Discrete signals | 16 | Digital on/off inputs |
| NFAR181-S10 | RTD Input Module (Compact) | RTD | 4 | Smaller channel count |
| NFAR181-S60 | RTD Input Module with enhanced features | RTD | 8 | Enhanced diagnostics |
| NFAR185-S50 | Analog Output Module | 4-20 mA outputs | 8 | Control outputs |
Popular Models from Yokogawa Brand
| Model Number | Description | Application | Key Feature |
|---|---|---|---|
| DCS CENTUM VP | Distributed Control System | Process automation | Scalable and reliable |
| YS1700 | Field Instrument (Pressure Transmitter) | Process control | High accuracy |
| YS930 | Temperature Transmitter | Temperature sensing | Robust and versatile |
| NFAR182-S50 | Thermocouple Input Module | Temperature input | Reliable for thermocouples |
| YTMX580 | Smart Transmitter | Process variable measurement | Advanced diagnostics |
| DCS CENTUM CS 3000 | Legacy Control System | Industrial automation | Proven reliability |
