Honeywell FC-TSAI-1620M Analog Input Module for Safety Manager

Introduction to the Honeywell FC-TSAI-1620M

When your industrial process demands reliable signal acquisition from hazardous areas, how do you ensure both safety and accuracy? The Honeywell FC-TSAI-1620M field termination assembly (FTA) module provides the answer. It serves as the critical interface between field sensors and the safe high-density analog input module SAI-1620m in the Safety Manager system. Designed for Class I, Division 2 hazardous locations, this module handles 16 analog input channels for both safety-related and non-safety-related applications.

Technical Specifications Breakdown

The FC-TSAI-1620M offers 16 input channels arranged in two groups of eight with a common 0 V reference. Each channel accepts 0-25 mA input current with a 250 Ω (±1%) input resistance, enabling linear direct conversion of 0(4)-20 mA DC field signals. The module requires an external 30 Vdc power supply drawing only 3 mA (without input loop loads). For passive transmitters, it provides an output resistance of 270 Ω (±5%) and limits igniting current per channel to less than 120 mA at 30 Vdc. The output voltage to the SAI-1620m module ranges from 0 to 4 Vdc with 0.1% accuracy. Protection includes 315 mAT slow-acting fuses in a 5 × 20 mm package.

Industry Applications

In chemical processing plants, the FC-TSAI-1620M reliably interfaces 4-20 mA transmitters measuring pressure, temperature, or flow from Division 2 classified areas. Its power supply distribution to each transmitter includes voltage-current limitation compliant with hazardous area requirements. For oil and gas facilities, the module's two isolated groups of eight channels allow flexible wiring configurations while maintaining safety integrity. The high accuracy (0.1%) ensures precise monitoring of critical process variables, reducing false trips and improving uptime.

Installation & Setup Guidance

Mounting the FC-TSAI-1620M is straightforward using its universal snap-in provision for standard DIN EN rails (TS32 or TS35 × 7.5). The required rail length is 211 mm (8.30 in). Connection to the SAI-1620m module uses a system interconnection cable (SICC-0001/Lx) plugged into the SIC connector. Screw terminals accept wire diameters up to 2.5 mm² (AWG 14) with a strip length of 7 mm (0.28 in) and a tightening torque of 0.5 Nm (0.37 ft-lb). Ensure the external 30 Vdc power supply is properly connected and grounded before operation.

Maintenance & Reliability

The FC-TSAI-1620M is built for long-term reliability in industrial environments. Its compact dimensions (210 × 70 × 60 mm) allow efficient use of cabinet space. Regular inspection of the fuses and terminal connections is recommended to maintain signal integrity. The module's design minimizes maintenance needs, contributing to lower total cost of ownership. For safety-critical applications, periodic verification of the input accuracy and output voltage levels helps ensure continued compliance with system requirements.

Compatibility & Integration

This FTA module is specifically designed for integration with the Honeywell Safety Manager system, working exclusively with the SAI-1620m safe high-density analog input module. The system interconnection cable SICC-0001/Lx provides a dedicated link between the FTA and the input module. The FC-TSAI-1620M supports both safety-related and non-safety-related applications, making it versatile for various plant configurations.

Selection Guide & Purchasing Advice

Before purchasing the FC-TSAI-1620M, verify compatibility with your existing Safety Manager system and confirm the required cable length for the SICC-0001/Lx. Consider the number of channels needed: this module offers 16 channels in two groups of eight with common 0 V. BluePLC Industrial stocks this module and can provide current lifecycle status and availability information. Contact our team to confirm stock and lead times before ordering.