Description
The Yokogawa SDV144-S13 is a 16-channel digital input module engineered for deployment within Yokogawa ProSafe-RS Safety Instrumented Systems (SIS). It reliably monitors critical, no-voltage contact or voltage switch states from field safety sensors, routing real-time discrete signals to safety controllers for emergency shutdown (ESD) and interlocking logic.
Technical Specifications
| Parameter | Value |
| Manufacturer | Yokogawa Electric Corporation |
| Product Type | Digital Input Module (ProSafe-RS SIS) |
| Model Code / Suffix | SDV144-S13 (Standard type with ISA Standard G3 corrosion resistance) |
| Channel Count | 16 channels (isolated) |
| Input Signal Type | No-voltage contact or DC voltage input |
| Input Current | 6 mA \pm 20\% (at 24 V DC external power) |
| External Power Supply | 24 V DC (+20% / -10%) |
| Input Response Time | \le 40 ms |
| Withstand Voltage | 2,000 V AC for 1 minute (between input signal and system) |
| Current Consumption | Max. 290 mA (5 V DC); Max. 140 mA (24 V DC internal/external bus) |
| Operating Temperature | −20°C to +70°C |
| Enclosure Protection | Conformal coating compliant with ISA-71.04 Class G3 (harsh/corrosive environments) |
| Weight | Approx. 0.36 kg to 0.41 kg |
Availability and Commercial Terms
- Condition Options: New Original (Factory Sealed), New Surplus, or Refurbished (fully bench-tested and certified)
- Lead Time: 1 to 3 business days for stock items; 2 to 4 weeks for specialized factory sourcing
- Warranty: 12-month standard replacement warranty from date of shipment
- Pricing Note: Listed price is indicative, not final. Price subject to market conditions; contact us for a firm quote.
Engineering and Integration Notes
- Safety Integrity Level (SIL): Designed explicitly for use in safety-critical loops up to SIL 3 in single or dual-redundant configurations, complying with IEC 61508 standards.
- Wiring & Interface: Utilizes dedicated pressure clamp terminal blocks or pre-formed MIL/AKB cables (such as AKB331) to streamline cabinet marshalling and reduce wiring errors.
- Diagnostics: Features built-in hardware self-monitoring and line-fault detection capabilities (such as open-circuit or short-circuit sensing depending on configuration) that report directly to the safety node processor.
Frequently Asked Questions
What does the “-S13” suffix code designate?
The “-S” denotes the standard hardware model line, while the “1” specifies the exact configuration tier, and the “3” indicates compliance with ISA Standard G3 harsh environment conformal coating (corrosion resistance against hydrogen sulfide, sulfur dioxide, and other reactive gases).
Can the SDV144-S13 module be hot-swapped?
Yes, when installed in an approved ProSafe-RS redundant node rack architecture and supported by safety system software configuration, the module allows online replacement without cutting system power or tripping the safety loop. Verify safety authorization procedures at your plant before hot extraction.
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