Product Description
The SAI143-H53/A4D00/PRP is a high-integrity 16-channel analog input module developed for the Yokogawa ProSafe-RS safety instrumented system (SIS). This module is engineered to handle 4 to 20 mA signals with extreme precision, serving as the primary interface for safety-critical sensors such as pressure transmitters, emergency temperature sensors, and level gauges.
The SAI143-H53/A4D00/PRP (Model: SAI143-H53) is SIL3 certified, providing the rigorous diagnostic capabilities required for emergency shutdown (ESD) and fire and gas (F&G) applications. This variant features the /PRP suffix, indicating support for the Parallel Redundancy Protocol, which ensures seamless network communication without data loss even during a single network failure.
The H53 and A4D00 designations denote a HART-enabled hardware revision with specialized conformal coating, making it resilient against corrosive G3-class industrial atmospheres. It is a cornerstone for plants requiring “Safety and Control One” integration with the CENTUM VP environment.
Technical Specifications
| Specification | Description |
|---|---|
| Channel Count | 16-channel isolated analog inputs |
| Input Signal | 4 to 20 mA DC |
| Safety Integrity Level | SIL3 certified (IEC 61508) |
| Communication Protocol | HART 5/6/7 digital signaling over analog |
| Network Redundancy | PRP (Parallel Redundancy Protocol) supported |
| Accuracy | ±0.1% of full scale |
| Input Impedance | 250 Ω (nominal) |
| Isolation Voltage | 1500 V AC (Field-to-System); 500 V AC (Between channels) |
| Power Consumption | 500 mA at 5 V DC (Internal); 450 mA at 24 V DC (Field) |
| Environmental Protection | Conformal coating for G3 corrosive gas resistance |
| Operating Temperature | -20 to 70 °C |
| Weight | 0.45 kg |
Application and Safety Features
The SAI143-H53/A4D00/PRP is deployed in environments where process failure is not an option, such as offshore platforms and petrochemical refineries.
Its internal Self-Diagnostic feature continuously monitors the health of the A/D converters and internal circuitry. If a discrepancy is detected between the dual-redundant processing paths, the module automatically triggers a fail-safe response, ensuring the system transitions to a predetermined safe state.
FAQ
Does the SAI143-H53/A4D00/PRP support 2-wire transmitter powering?
Yes, the module provides a 24V DC loop supply capable of powering standard 2-wire field transmitters directly from the input terminals.
What is the advantage of the PRP suffix on this module?
The PRP (Parallel Redundancy Protocol) allows the module to send duplicate data packets over two independent local area networks simultaneously, providing zero-recovery-time switching if one network path is compromised.
| 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? |
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