SR1150A02_YOKOGAWA_PRODUCT_吉林易择科技技术发展有限公司

The Yokogawa SR1150A02 is a Single Channel, High-Speed Analog Voltage/Current Input Safety Relay designed for use with Yokogawa's ProSafe-RS Safety Instrumented System (SIS).<br /> This module is a critical component located in a SR1000 Series Safety Remote I/O node. Its primary function is to interface with field instruments (like 4-20mA transmitters or 0-5V sensors), read their analog signals with high integrity, and transmit this data to the ProSafe-RS safety controllers for processing in safety-critical loops (SIL 2/SIL 3).

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DESCRIBE

Key Technical Specifications
Parameter Specification
Type Single-channel Analog Input Safety Relay
System Yokogawa ProSafe-RS Safety Instrumented System (SIS)
Mounting Installs in a SR1000 Series Safety Remote I/O node (e.g., SR111/SR121 Base)
Number of Channels 1
Input Signals Voltage: 1-5 V DC, 0-5 V DC
Current: 4-20 mA DC (with external 250Ω resistor for voltage input)
Input Impedance Voltage: ≥ 1 MΩ
Current: ≤ 55 Ω (via internal shunt)
Converted Value Digital value transmitted to the controller (e.g., 0-16383)
Update Period (Speed) High-Speed: 50 ms per channel (typical)
Accuracy ±0.1% of reading (typical for 4-20mA input)
Burnout (Detection) Up-scale or Down-scale burnout detection (configurable)
Diagnostics Extensive internal and field-side diagnostics (open wire, short circuit, etc.)
Safety Integrity Level Suitable for SIL 2 / SIL 3 safety loops (as part of a certified system)
Certifications IEC 61508, IEC 61511, and various ex-certifications (when used in appropriate assemblies)
Power Supply Powered by the Safety Remote I/O base unit (24 VDC)

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