Excellent PLC
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| Mobile | +8613666033393 | |||||||
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| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Introduction
The Yokogawa NFAR181-S50/R8S10 RTD Input Module is a high-precision temperature input module designed for industrial automation and process control systems. It forms an essential part of Yokogawa’s advanced N-IO series, offering accurate measurement of temperature using Resistance Temperature Detectors (RTDs). This module is widely used in critical industries such as oil & gas, petrochemical, energy, and manufacturing, where accurate temperature monitoring is fundamental for process safety and efficiency.
The NFAR181-S50/R8S10 is engineered to provide superior reliability, noise immunity, and diagnostic capabilities. It supports multiple RTD types and wiring configurations, making it adaptable for various process environments. This module also integrates seamlessly with Yokogawa control systems like CENTUM VP and ProSafe-RS, ensuring easy deployment and enhanced operational performance.
Product Specifications
| Parameter | Description |
|---|---|
| Model | NFAR181-S50/R8S10 |
| Manufacturer | Yokogawa Electric Corporation |
| Type | RTD Input Module |
| Number of Channels | 8 independent RTD input channels |
| Supported Sensor Types | Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120 |
| Input Signal Range | -200°C to +850°C (depending on RTD type) |
| Wiring Method | 2-wire, 3-wire, and 4-wire configurations |
| Accuracy | ±0.1% of reading or better |
| Resolution | 16-bit digital resolution |
| Input Isolation | Channel-to-channel and channel-to-ground isolation |
| Update Time | Approx. 100 ms |
| Power Supply | 24 V DC (via system backplane) |
| Operating Temperature | -20°C to +55°C |
| Storage Temperature | -40°C to +85°C |
| Humidity Range | 10% to 90% RH, non-condensing |
| Mounting Method | Installed on dedicated Yokogawa baseplate |
| Dimensions (W × H × D) | 130 x 107.5 x 32.8 mm |
| Weight | 0.2 kg |
| Certifications | CE, ATEX, IECEx, SIL3 (for safety applications) |
| Diagnostic Functions | Open circuit detection, wire break detection |
Applications
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Temperature Monitoring in Process Plants: Ensures accurate temperature measurement in critical systems like boilers, reactors, and furnaces.
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Safety Systems: Integrated with Safety Instrumented Systems (SIS) for high-integrity temperature sensing.
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Energy Sector: Suitable for power plants to monitor turbine and generator temperatures.
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Chemical and Petrochemical: Provides precise temperature feedback for controlled reactions.
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Manufacturing Processes: Ideal for industries requiring strict thermal control for product quality.
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Redundant Control Systems: Used in fault-tolerant architectures to maintain continuous operation.
Product Advantages
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High Accuracy and Stability: Advanced measurement algorithms provide reliable temperature readings even under fluctuating conditions.
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Supports Multiple RTD Types: Offers flexibility to work with various sensor standards for different applications.
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Advanced Diagnostic Features: Detects sensor open circuits, wiring faults, and ensures signal integrity.
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Redundancy and Hot-Swap Capability: Supports high-availability configurations without process interruption.
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Compact Design for Space Optimization: Fits efficiently into system cabinets, saving installation space.
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Seamless Integration with Yokogawa Systems: Optimized for CENTUM VP and ProSafe-RS platforms for maximum performance.
FAQ
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What RTD types are supported by NFAR181-S50/R8S10?
It supports Pt100, Pt200, Pt500, Pt1000, Ni100, and Ni120 RTDs. -
What is the input range for temperature measurement?
The input range is approximately -200°C to +850°C depending on the RTD type. -
Does the module support 3-wire RTD connections?
Yes, it supports 2-wire, 3-wire, and 4-wire configurations. -
What is the accuracy of the NFAR181-S50/R8S10?
The module offers ±0.1% of reading or better accuracy. -
How many RTD channels are available in this module?
It provides 8 independent RTD input channels. -
What is the resolution of the input signal conversion?
The module offers 16-bit resolution for high precision. -
Is channel-to-channel isolation provided?
Yes, it provides channel-to-channel and channel-to-ground isolation for safety. -
Does the module offer diagnostic capabilities?
Yes, it features open circuit detection and wire break detection. -
What is the typical update time of the NFAR181-S50/R8S10?
The typical update cycle is approximately 100 milliseconds. -
Can this module be used in SIL-certified safety applications?
Yes, it is SIL3 certified and suitable for safety instrumented systems.
Related Models in the Same Series
| Model | Description |
|---|---|
| NFAR141-S50 | Thermocouple Input Module, 8 channels |
| NFAR151-S50 | Universal Temperature Input Module |
| NFAP135-S00 | Pulse Input Module |
| NFAI841-S00 | Analog Input Module, 8 channels |
| NFAT841-S00 | Analog Output Module, 8 channels |
| NFBM841-S00 | Mixed Analog I/O Module |
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