Product Description
The SDV144-S53 S4 is a high-integrity safety digital input module designed for the Yokogawa ProSafe-RS Safety Instrumented System. This S4-series hardware revision provides 16 isolated digital input channels, optimized for acquiring discrete signals from safety-critical field devices such as pressure switches, emergency stop pushbuttons, and valve position indicators.
Certified for SIL3 safety applications, the SDV144-S53 S4 incorporates continuous hardware self-diagnostics to ensure input signal validity and long-term system availability. Its compact mechanical profile and low heat dissipation make it especially suitable for high-density safety cabinets.
A key technical advantage of this module is its dual-layer diagnostic architecture. In addition to monitoring internal electronics, it actively supervises field wiring integrity, detecting open circuits and short circuits that could otherwise remain hidden and compromise the safety loop.
Technical Specifications
| Parameter | Specification |
|---|---|
| Input Quantity | 16 channels, module-to-channel isolation |
| Input Signal Type | 24 V DC (dry contact or voltage input) |
| Voltage Thresholds | ON ≥ 18 V DC / OFF ≤ 5 V DC |
| Input Current | 4.1 mA per channel @ 24 V DC |
| Safety Integrity Level | SIL3 (IEC 61508 compliant) |
| Internal Diagnostics | Hardware self-testing every 100 ms |
| Field Line Monitoring | Open/short detection (with EOL resistor) |
| Current Consumption | 350 mA @ 5 V DC |
| Dimensions (W × H × D) | 25 × 127 × 102 mm |
| Weight | 0.22 kg |
Application Scenarios
The SDV144-S53 S4 is widely used in LNG processing, chemical refining, and power generation facilities. It is specifically suited for:
-
Emergency Shutdown (ESD) logic
-
Fire & Gas (F&G) detection systems
where loss or corruption of a discrete signal could lead to severe process or safety consequences.
S4 Revision Explanation
The S4 suffix identifies a specific hardware revision level. While the functional behavior remains consistent with the SDV144-S53 series, S4-level modules typically incorporate optimized component selection, resulting in improved thermal stability and increased MTBF compared to earlier legacy revisions.
| 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. |
Recently Viewed
Express Shipping
Extensive Inventory
Quality Assurance
