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Product Description

Precise Signal Interfacing for Safety Management

The Honeywell FC-TSAI-1620M is a high-integrity Field Termination Assembly (FTA) designed for the Honeywell Fail-Safe Control (FSC) and Safety Manager systems. This assembly acts as the critical bridge between field transmitters and the SAI-1620m safety analog input module. With 16 dedicated channels organized into two isolated groups, it provides the essential signal conditioning, fuse protection, and impedance matching required to convert standard 0–25 mA field currents into precise 0–4 Vdc signals for the controller. Its design is optimized for high-reliability environments where signal accuracy and electrical isolation are non-negotiable.

SIL 3 Compliance and Robust Protection

Engineered for Safety Instrumented Systems (SIS), the FC-TSAI-1620M features a 16-bit resolution and a high accuracy rating of ±0.1%, ensuring process variables are monitored with extreme precision. Each channel is equipped with a 315 mAT slow-acting fuse and short-circuit protection, safeguarding the system backplane from field wiring faults. The assembly supports both active and passive transmitters, providing a current-limited output to field devices. Rated for operation in extreme temperatures (–40 °C to +70 °C), this FTA is a trusted component in SIL 3-capable safety loops across global oil, gas, and petrochemical infrastructures.

Technical Specifications Table

Feature Specification Details
Manufacturer Honeywell
Model Number FC-TSAI-1620M
Product Type Field Termination Assembly (FTA)
Input Channels 16 (2 groups of 8 with common 0 V)
Signal Input Range 0–25 mA (Supports 4–20 mA standard)
Signal Output (to Module) 0–4 Vdc
Input Resistance 250 Ω (±1%)
Accuracy ±0.1% of Full Scale
Resolution 16-bit
External Power Supply 30 Vdc nominal
Fuse Protection 315 mAT slow-acting (5 × 20 mm)
Safety Integrity Level SIL 3 Capable (IEC 61508)
Operating Temperature –40 °C to +70 °C
Shipping Weight 3.0 kg

 

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