Product Description
The SRM53D-000/BR4 is a high-integrity analog terminal board specifically designed for the Yokogawa Electric Corporation ProSafe-RS Safety Instrumented System (SIS). It provides a secure interface between field instruments and safety control modules such as the SAI143 or SAI533, ensuring reliable signal transmission for mission-critical safety loops.
Featuring a redundant architecture, the SRM53D-000/BR4 supports dual I/O module connections and is equipped with integrated safety-certified relays. The board accommodates up to 16 dry contact output points (arranged as 8x2 pairs) to enable interlocking, emergency shutdown, and other safety-critical functions. Its rugged 19-inch rack-mounted chassis is engineered to withstand harsh industrial environments, including extreme temperatures and corrosive atmospheres.
Detailed Technical Specifications
| Parameter | Specification |
|---|---|
| Model Identification | SRM53D-000/BR4 |
| Device Category | Safety Analog Terminal Board (Redundant Type) |
| Output Configuration | 8 × 2 dry contact relay outputs |
| Integrated Protection | Safety-certified relays for loop integrity |
| Wiring Interface | M4 screw terminals (industrial grade) |
| System Connectivity | Dual KS cables for redundant I/O module pairing |
| Mounting Format | 19-inch rack-mounted chassis |
| Operating Temperature | -20°C to +70°C |
| Weight | 2.7 kg |
Industrial Applications and Implementation
The SRM53D-000/BR4 is a key component in Safety Instrumented Functions (SIF) and is commonly deployed in:
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Emergency Shutdown (ESD): Delivering reliable relay outputs to trip safety valves.
-
Fire and Gas (F&G) Systems: Driving alarms, beacons, and other safety devices.
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Redundant I/O Marshaling: Connecting field sensors to controllers with hardware-level isolation.
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Harsh Environments: Ideal for upstream oil platforms, chemical refineries, and other facilities with wide temperature variations and corrosive atmospheres.
FAQ
What does the /BR4 suffix indicate?
The /BR4 specifies the terminal board configuration, including mounting bracket type and internal wiring jumpers optimized for redundant analog signal processing in ProSafe-RS systems.
Can this board handle 110V AC signals?
No. The internal relays and PCB traces are optimized for 24 V DC safety loops. High-voltage AC use requires verification against Yokogawa's General Specifications (GS) sheet.
Does this board support HART pass-through?
Yes. When used with HART-capable modules such as the SAI143-H, the SRM53D-000/BR4 allows bidirectional HART communication without affecting the 4–20 mA safety signal.
| 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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