Honeywell FS-TSGAS-1624 Fail-Safe Gas-Flame Detector Input FTA

Honeywell FS-TSGAS-1624 Fail-Safe Gas-Flame Detector Input FTA

The FS-TSGAS-1624 is a 16-channel fail-safe gas and flame detector input Field Termination Assembly (FTA) manufactured by Honeywell for safety instrumented systems. It connects field-mounted gas and flame detection transmitters directly to the safety system logic solver, providing secure signal conditioning and electrical termination for critical hazard monitoring loops.

Input Channel Configuration and Signal Conditioning

The FTA accommodates 16 analog input channels designed for standard 0–20 mA current signals referencing a common 0 V connection. Each channel incorporates a 500 Ω (±5%) input termination resistor that converts incoming field currents into a proportional 0–4 VDC signal routed to the corresponding SAI-1620m safety input module with high conversion precision (0.1% accuracy).

Power Distribution and Safety Certifications

Operating from an external 24 VDC power supply, the module exhibits a low baseline power draw of 3 mA (excluding field loop power requirements). Built for stringent functional safety and industrial regulatory compliance, the assembly carries major global safety certifications, including CE, TÜV, UL, CSA, and FM approvals.

Frequently Asked Questions

Q: What safety input module does the FS-TSGAS-1624 pair with? A: The FS-TSGAS-1624 FTA routes conditioned 0–4 VDC signal outputs directly to the Honeywell SAI-1620m safety analog input module.

Q: How does the FTA convert field current loops into voltage signals for the controller? A: Each of the 16 input channels uses an internal 500 Ω (±5%) resistor to convert 0–20 mA field transmitter signals into a 0–4 VDC analog input range.

Q: What is the power consumption of the module itself? A: The FTA draws 3 mA from an external 24 VDC supply under nominal conditions, excluding additional current drawn by connected field loop devices.