Product Description
The SDV144-S53/STB4S-10 (SDV144) is a high-integrity 16-channel digital input module designed for Yokogawa ProSafe-RS Safety Instrumented Systems (SIS). It serves as the primary interface for monitoring critical safety sensors, including emergency stop buttons, gas detectors, and pressure switches.
The S53 configuration provides ISA Standard G3 corrosive gas resistance and an extended operating temperature range of -20 to 70°C, making it ideal for harsh industrial environments. The module is bundled with the STB4S-10 pressure clamp terminal block, enabling direct field wiring to the module front. This ensures secure, vibration-resistant connections without the need for external interface cables.
Technical Specifications
| Feature | Specification |
|---|---|
| Module Type | Safety Digital Input (ProSafe-RS) |
| Channels | 16, individually isolated |
| Input Signal Type | No-voltage contact (Dry contact) |
| Input Logic | ON Resistance ≤ 1 kΩ; OFF Resistance ≥ 100 kΩ |
| Connectivity | STB4S-10 Pressure Clamp Terminal Block included |
| Environmental Protection | ISA Standard G3 Corrosive Gas Resistance |
| Operating Temperature | -20 to 70°C |
| Isolation | 2 kV AC between input signals and system logic |
| Response Time | ≤ 40 ms (Safety-rated acquisition) |
| Safety Rating | SIL 3 compliant |
| Power Consumption | Max 290 mA (5 V DC), Max 140 mA (24 V DC) |
| Weight | 0.4 kg |
Application Scenarios
The SDV144-S53/STB4S-10 is commonly deployed in offshore oil & gas platforms, chemical plants, and wastewater treatment facilities. Its G3 protection prevents circuit degradation from corrosive gases such as hydrogen sulfide ($H_2S$). The integrated terminal block simplifies installation in compact safety cabinets, ensuring high reliability and safe operation in constrained spaces.
Technical FAQ
Why does this module have a 40 ms response time?
Safety modules like the SDV144 continuously perform self-diagnostics and signal validation to ensure data integrity and hardware health, which is required for SIL 3 certification.
Is the STB4S-10 terminal block removable?
Yes, the terminal block can be detached for easier wiring or module replacement, but it is specifically keyed to prevent incorrect installation on SDV series safety modules.
| 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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