Product Overview
The Yokogawa AST143 is a high-density Thermocouple (TC) and Millivolt (mV) Input Module designed for the CENTUM VP Field Integrated Operation (FIO) system. It provides 16 channels for accurate acquisition of temperature signals from a wide range of thermocouples and millivolt inputs. This module is widely used in critical applications such as power generation, oil & gas, and heavy industry, where precise temperature monitoring is essential. Supplied as 100% brand new, original factory equipment, the AST143 ensures high measurement accuracy, stability, and seamless integration into Yokogawa DCS environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Number of Channels | 16 isolated channels |
| Input Types | Thermocouple (TC), Millivolt (mV) |
| Temperature Ranges | TC: -200 to 1500°CRTD: -200 to 800°CThermistor: -50 to 150°C |
| Accuracy | ±0.2% of span |
| Data Update Period | 10 ms |
| Isolation | 1500 V AC (between circuits and channels) |
| Input Resistance | ≥ 1 MΩ |
| Cold Junction Compensation | ±1°C accuracy |
| Dimensions | 120 mm × 100 mm × 39 mm |
| Weight | 0.30 kg |
| Condition | 100% Brand New Original |
Engineering Advantages
High-Speed Data Processing
With a 10 ms update cycle, the module delivers fast and responsive temperature data acquisition, enabling immediate control actions in dynamic processes such as turbines and reactors.
Superior Signal Isolation
Each channel features 1500 V AC isolation, preventing electrical interference and ground loops, ensuring stable and accurate readings across all inputs.
Integrated Cold Junction Compensation
Built-in compensation with ±1°C accuracy eliminates the need for external compensation devices, simplifying installation and reducing system complexity.
Multi-Sensor Versatility
Supports thermocouples, RTDs, and thermistors, allowing engineers to standardize temperature measurement across diverse applications using a single module type.
FAQs
Does the AST143 support HART communication?
Yes, it supports HART communication, enabling remote diagnostics and configuration of compatible intelligent field transmitters.
How does the module handle a broken thermocouple wire?
It includes burnout detection. If a sensor fails, the module forces the output to a predefined up-scale or down-scale value and triggers an alarm.
Is the AST143 compatible with different thermocouple types?
Yes, it supports common thermocouple types such as J, K, E, T, R, S, and B. Each channel can be individually configured via Yokogawa engineering tools.
Can the module be replaced without shutting down the system?
Yes, the AST143 supports hot-swapping in FIO nests, allowing replacement without powering down the system, subject to node configuration and redundancy rules.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
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