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- Yokogawa
- AAM21-S2
- MV/Thermocouple/RTD Input Module
- Japan
- 42.9 × 130 × 146.8 mm
- 0.1kg
- Xiamen, China
- New & In Stock
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
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All our products are priced very favorably because we have our own warehouse and supply.
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Yokogawa AAM21-S2 MV/Thermocouple/RTD Input Module
Product Overview
The Yokogawa AAM21-S2 is a high-performance mV/Thermocouple/RTD input module engineered for precise and stable measurement of temperature and millivolt signals in industrial automation environments. Designed to interface seamlessly with Yokogawa’s control systems, it supports a wide range of sensor inputs, including millivolt sources, thermocouples, and RTDs.
With 8 input channels, the AAM21-S2 is suitable for complex monitoring tasks across various industries such as energy, petrochemical, and manufacturing. It supports direct integration with Yokogawa’s distributed control systems (DCS), offering engineers the flexibility to scale input configurations without compromising accuracy or reliability.
Each channel features advanced isolation and diagnostic features, enabling real-time error detection and high system availability. Its compact size and low weight make it ideal for dense installation in industrial control panels.
Product Features and Advantages
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Supports Multiple Input Types: Accepts millivolt signals, thermocouples, and RTDs for comprehensive temperature monitoring.
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High Accuracy: Delivers consistent and precise measurements even in harsh environments.
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8 Independent Channels: Allows for flexible deployment of multiple sensors in a single module.
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Compact and Lightweight: Designed for easy installation and space optimization within control cabinets.
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Built-in Diagnostics: Supports fault detection such as wire break, short circuit, and sensor failure.
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Seamless DCS Integration: Fully compatible with Yokogawa’s control systems, reducing configuration and commissioning time.
Applications
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Oil and Gas: Real-time temperature monitoring in upstream and downstream operations.
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Power Plants: Accurate measurement of boiler, turbine, and environmental parameters.
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Chemical and Petrochemical: Enables precise process temperature regulation for safety and quality.
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Food & Beverage: Maintains critical temperature parameters in processing and packaging.
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Pharmaceutical: Supports regulatory compliance through precise monitoring in cleanroom environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Input Type | mV, Thermocouple (J, K, T, E, N, R, S, B, C), RTD (Pt100) |
| Number of Channels | 8 |
| Input Range (mV) | –150 mV to +150 mV |
| Power Supply | 24 V DC |
| Isolation Voltage | 1500 V AC |
| Output | 4–20 mA and digital signal to controller |
| Operating Temperature | –10°C to +60°C |
| Mounting | DIN Rail |
| Dimensions | 42.9 × 130 × 146.8 mm |
| Weight | 0.1 kg |
| Material | Industrial-grade polymer with EMI shielding |
| Diagnostic Functions | Wire break, sensor error, short circuit detection |
Product Benefits
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Multi-Sensor Support: Flexibly handles mV, thermocouple, and RTD inputs.
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Precision Monitoring: High measurement accuracy improves process control stability.
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Modular Expansion: Connect multiple units for larger systems without added complexity.
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Durable Construction: Withstands harsh environments with EMI-resistant housing.
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Efficient Commissioning: Plug-and-play setup with auto-detection in Yokogawa DCS platforms.
Recommended Related Models (Same Type or Usage)
| Model | Input Type | Channels | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| AAM11-S2 | mV, TC, RTD | 8 | 42.9 × 130 × 146.8 | 0.1 |
| AAM22-S2 | mV, TC, RTD | 16 | 42.9 × 130 × 146.8 | 0.2 |
| AAM12-S2 | TC, RTD | 12 | 42.9 × 130 × 146.8 | 0.15 |
| AAM23-S2 | mV, TC, RTD | 24 | 42.9 × 130 × 146.8 | 0.3 |
| AAM31-S2 | TC, RTD | 8 | 42.9 × 130 × 146.8 | 0.1 |
Other Popular Yokogawa Models
| Model | Input Type | Channels | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| AAM01-S2 | RTD | 8 | 42.9 × 130 × 146.8 | 0.1 |
| AAM03-S2 | Thermocouple | 8 | 42.9 × 130 × 146.8 | 0.1 |
| AAM08-S2 | mV, RTD | 8 | 42.9 × 130 × 146.8 | 0.1 |
| AAM10-S2 | RTD, Thermocouple | 16 | 42.9 × 130 × 146.8 | 0.2 |
| AAM25-S2 | mV, Thermocouple | 16 | 42.9 × 130 × 146.8 | 0.3 |
Frequently Asked Questions (FAQ)
Q1: What input types does the AAM21-S2 support?
A1: The AAM21-S2 supports millivolt (mV), thermocouple (types J, K, T, E, N, R, S, B, C), and RTD (Pt100) inputs.
Q2: How many sensors can be connected to the AAM21-S2?
A2: It has 8 input channels, allowing 8 sensors to be connected simultaneously.
Q3: What kind of output does the module provide?
A3: It provides a 4–20 mA output and a digital signal for the controller.
Q4: Is the AAM21-S2 suitable for high-temperature environments?
A4: Yes, it operates efficiently between –10°C to +60°C.
Q5: Can the AAM21-S2 be integrated with Yokogawa DCS platforms?
A5: Absolutely, it is fully compatible with Yokogawa control systems.
Q6: What is the module’s size and weight?
A6: It measures 42.9 × 130 × 146.8 mm and weighs 0.1 kg.
Q7: Does the module have built-in diagnostics?
A7: Yes, it includes diagnostics for wire break, short circuit, and sensor failure.
Q8: What voltage is required to power the module?
A8: The AAM21-S2 requires a 24 V DC power supply.
Q9: How is the module mounted?
A9: It is designed for DIN rail mounting inside control cabinets.
Q10: Can the module be used in harsh industrial environments?
A10: Yes, it is built with industrial-grade materials and EMI shielding for durability.
Authenticity guarantee
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.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
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%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.