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Product Introduction
The Yokogawa ASR133 RTD/POT Input Module is an advanced input module engineered for reliable measurement of resistance temperature detectors (RTDs) and potentiometer (POT) signals within process control systems. As part of Yokogawa’s CENTUM and FA-M3 series architecture, the ASR133 module is designed to deliver precise analog signal acquisition in demanding industrial environments.
Built with durability and high signal accuracy in mind, the ASR133 is capable of handling multiple RTD and POT inputs. It ensures accurate analog-to-digital conversion, enabling seamless integration with distributed control systems (DCS) and programmable logic controllers (PLCs). This module plays a critical role in temperature and position monitoring in applications ranging from chemical plants to manufacturing lines.
Technical Specifications
| Parameter | Details |
|---|---|
| Model | ASR133 |
| Function | RTD/POT Input Module |
| Input Type | Resistance Temperature Detector (RTD) / Potentiometer |
| Number of Channels | 16 isolated input channels |
| RTD Types Supported | Pt100, Pt1000, Cu10, Ni120, JPt100 |
| Input Signal Range | 0 – 400 Ω (adjustable) |
| Input Resistance | >1 MΩ |
| Accuracy | ±0.1% of full scale |
| Conversion Speed | 100 ms (typical) |
| Isolation | Channel-to-channel and channel-to-bus isolated |
| Communication Interface | Internal bus (to main CPU/controller) |
| Power Supply Voltage | 5 VDC (supplied internally via rack) |
| Power Consumption | Approx. 4.2 W |
| Diagnostics | Input open detection, module self-diagnosis |
| Operating Temperature | 0 to 55°C |
| Storage Temperature | -20 to 70°C |
| Humidity Range | 5% to 95% RH (non-condensing) |
| Mounting | Rack-mounted (DIN rail via baseplate) |
| Dimensions (W × H × D) | 130 x 107.5 x 32.8 mm |
| Weight | 0.3 kg |
| Compliance | CE, UL, CSA, RoHS |
Applications
The ASR133 RTD/POT Input Module is utilized across a wide range of industries where precise analog signal monitoring is vital:
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Chemical and Petrochemical Plants – For monitoring temperature-sensitive reactions using RTDs.
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Food and Beverage Industry – Ensures strict temperature control in processing lines.
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Water Treatment Facilities – Measures motor valve positioning via POT input.
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Manufacturing Automation – Interfaces with position feedback mechanisms on servos and actuators.
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Pharmaceutical Production – Maintains accurate thermal profiles during formulation and packaging.
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Power Generation Plants – For monitoring heat exchanger and turbine temperatures.
Product Advantages
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High Channel Density: 16 channels in a compact form factor, maximizing rack space utilization.
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Versatile Input Support: Compatible with multiple RTD and POT types for broader field compatibility.
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High Accuracy & Stability: Provides precise measurements with low drift and minimal noise interference.
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Channel-to-Channel Isolation: Enhances system reliability and prevents interference between input channels.
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Self-Diagnostics: Built-in health monitoring functions to preemptively detect faults.
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Modular Architecture: Simplifies system integration, maintenance, and scalability.
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Robust Construction: Withstands harsh industrial environments and complies with global certifications.
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Energy Efficient: Low power consumption supports energy-conscious system design.
Frequently Asked Questions (FAQ)
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What is the maximum number of RTD inputs supported?
The ASR133 supports up to 16 individual RTD or POT input channels. -
Can the module detect open or broken RTD wiring?
Yes, it has built-in diagnostics to detect open or disconnected sensors. -
Is it compatible with Pt1000 RTDs?
Yes, it supports a range of RTD types including Pt100, Pt1000, JPt100, and more. -
What kind of isolation does the ASR133 provide?
The module provides both channel-to-channel and channel-to-backplane isolation. -
Can it be hot-swapped without shutting down the system?
No, hot swapping is not supported; the module must be powered down before replacement. -
What protocols does it use to communicate with the CPU?
It uses Yokogawa’s internal I/O bus system to interface with the central processor. -
Does the ASR133 support potentiometers as inputs?
Yes, it can measure resistance-type inputs such as potentiometers. -
Is the ASR133 certified for international use?
Yes, it meets CE, UL, CSA, and RoHS compliance standards. -
What is the operating temperature range?
The operating range is 0°C to 55°C, suitable for most control cabinets. -
What is the weight of the module?
The module weighs 0.3 kg.
Related Models (Same Series or Functionality)
| Model | Function | Input Type | Channels | Remarks |
|---|---|---|---|---|
| ASR131 | RTD Input Module | RTD | 8 | Lower channel count version |
| ASR132 | RTD Input Module | RTD | 16 | Similar to ASR133, no POT support |
| ASR134 | POT Input Module | Potentiometer | 8 | Dedicated POT input module |
| ASI133 | Analog Input Module | Voltage/Current | 16 | For standard analog signals |
| ASD143 | Thermocouple Input Module | Thermocouple | 16 | High accuracy for TC inputs |
| ASC113 | Control Output Module | Analog Output | 8 | Analog voltage/current outputs |
Popular Yokogawa Models
| Model | Function | Series | Description |
|---|---|---|---|
| ADV551 | Analog Input Module | CENTUM VP | High-speed analog input with isolation |
| AAI543 | Analog Input Module | CENTUM CS 3000 | Universal input, multiple signal types |
| AAI835-H50 | High-Performance Analog Input Module | CENTUM VP | Used in high-reliability applications |
| PW402 | Power Supply Module | ProSafe-RS | Redundant power module for safety systems |
| F3SP71-4S | CPU Module | FA-M3R | PLC CPU for high-speed applications |
| CP451 | Controller Module | CENTUM VP | Advanced control processor for distributed control |
