产品介绍
The Yokogawa AAT145-S50 is a high-performance thermocouple (TC) and millivolt (mV) input module designed for mission-critical industrial environments. This model belongs to Yokogawa’s ProSafe-RS safety system family, tailored specifically for applications requiring SIL-certified safety integrity alongside precise temperature or low-level voltage signal monitoring.
This input module captures analog data from a wide range / thermocouple types and millivolt sources, and feeds it into the Safety Instrumented System (SIS) for monitoring and control. Its robust insulation, superior accuracy, and diagnostic features make it a reliable cornerstone in temperature-critical process safety applications.
产品规格
| Parameter | Specification |
|---|---|
| 型号 Number | AAT145-S50 |
| Input Type | Thermocouple (K, J, T, E, R, S, B, N, etc.), mV |
| Input Channels | 8 isolated channels |
| Input Signal Range | ±100 mV |
| Input Impedance | ≥10 MΩ |
| Resolution | 16-bit |
| Accuracy | ±0.1% / full scale (typical) |
| Cold Junction Compensation | Internal automatic CJC |
| Channel Isolation | 1500 V AC (channel-to-ground isolation) |
| Redundancy 支持 | Yes, used in redundant safety configurations |
| Diagnostic Functions | Open circuit detection, short detection, self-check |
| Power Supply | Supplied by base I/O 件 (nominal 24 VDC) |
| Operating Temperature Range | 0 to 55°C |
| Storage Temperature | -20 to +70°C |
| Humidity Tolerance | 5%–95% RH (non-condensing) |
| Dimensions (W x H x D) | 107.5 × 130 × 32.8 mm |
| 重量 | 0.2 kg |
| Installation | Mounted on I/O baseplate (DIN rail compatible) |
| Safety Certification | SIL3 (IEC 61508), TUV Certified |
| EMC/EMI Compliance | EN61000-6-2, EN61000-6-4 |
| System Compatibility | ProSafe-RS SIS |
Product Applications
The AAT145-S50 module is purpose-built for safety instrumented environments where temperature or low-voltage signals need to be monitored with high integrity and reliability. Key industry applications include:
-
Oil & Gas: Monitoring burner temperatures, flare systems, and pipeline heat traces.
-
Chemical Processing: Tracking exothermic reactions and hazardous process conditions.
-
Power Generation: Supervising turbine metal temperatures and critical control loops.
-
Offshore Platforms: Implementing ESD (Emergency Shutdown) logic with thermal feedback.
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Refining & Petrochemicals: Used in reactor, distillation column, and cracking 件 temperature safety loops.
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Pharmaceutical & Biotech: Ensuring process temperature control in critical batch reactions.
Its SIL3 rating ensures compliance with the most stringent safety system requirements.
Product Advantages
-
Certified for Safety Applications (SIL3)
Ensures that the module can be trusted in systems requiring the highest level / safety integrity. -
High-Accuracy Thermocouple Measurements
Reliable, consistent readings across supported TC types with built-in cold junction compensation. -
Multi-Channel & Galvanically Isolated
Independent isolation per channel prevents signal interference and ground looping. -
Advanced Diagnostics
Includes open-sensor detection, channel integrity monitoring, and built-in health checks. -
Robust Design for Harsh Environments
Built to withstand industrial EMC/EMI conditions and operate reliably in wide temperature ranges. -
Compact and Modular Integration
Easily fits into Yokogawa’s I/O architecture, optimizing cabinet space. -
Redundancy Compatibility
支持s redundant configurations critical for high-availability safety systems.
常见问题 (FAQ)
-
What is the difference between AAT145-S00 and AAT145-S50?
The S50 version is certified for use in ProSafe-RS safety systems and is SIL3 certified, while the S00 version is used in standard control systems. -
Is the AAT145-S50 suitable for use in SIS (Safety Instrumented Systems)?
Yes, it is fully compatible with ProSafe-RS and certified for SIL3 safety applications. -
Which thermocouple types are supported by this module?
The module supports all major types: K, J, T, E, R, S, B, N, and others. -
Does the module require external cold junction compensation?
No, it has built-in automatic cold junction compensation. -
What is the isolation level between the channels and ground?
Each channel is isolated at 1500 V AC from ground. -
Can the AAT145-S50 detect sensor failure?
Yes, it provides open sensor and short circuit detection per channel. -
Is it compatible with non-TC low-voltage signals?
Yes, it accepts millivolt signals up to ±100 mV. -
What’s the power supply requirement?
It receives power from the base I/O 件, typically 24 VDC. -
What kind / diagnostic feedback does it provide to the system?
It /fers self-diagnostics, channel status, and fault isolation. -
What systems can the AAT145-S50 be integrated into?
It integrates seamlessly with Yokogawa’s ProSafe-RS safety system.
Related 型号s from the Same Series or Functionality
| 型号 | 描述 | Input Type | Channels |
|---|---|---|---|
| AAT145-S00 | TC/mV Input Module (Standard use) | Thermocouple, mV | 8 |
| AAT135-S50 | RTD Input Module (Safety-rated) | RTD | 8 |
| AAT141-S50 | Universal Analog Input Module (Safety-rated) | Voltage, Current | 8 |
| AAT232-S50 | Digital Output Module (Safety-rated) | Relay Output | 16 |
| AAT231-S50 | Digital Input Module (Safety-rated) | 24V DC | 16 |
| AAT154-S50 | Analog Output Module (Safety-rated) | 4–20 mA | 8 |
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公司信息
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