Honeywell FS-TSGAS-1624 Retrofit-Ready Flame Detector for TS Series Control Systems
The Honeywell FS-TSGAS-1624 is a UV/IR flame detector engineered for seamless integration into legacy TS Series fire and gas detection control systems. As aging detection infrastructure reaches end-of-service life, the FS-TSGAS-1624 provides a verified drop-in replacement path that preserves existing wiring topology, terminal assignments, and control panel logic — minimizing retrofit complexity and unplanned downtime on active production sites.
Whether you are upgrading a petrochemical processing unit, a gas compression station, or an offshore platform control cabinet, the FS-TSGAS-1624 is designed to slot into existing detector mounting positions without requiring structural modifications to the field junction box or the central fire and gas controller. Its dual-spectrum UV/IR sensing technology delivers reliable flame discrimination across a wide range of hydrocarbon and hydrogen flame signatures, making it suitable for both open-area and enclosed hazardous zone applications.
Upgrade Compatibility Table
| Parameter | FS-TSGAS-1624 (Replacement) | Legacy TS Series Detector |
|---|---|---|
| Detection Technology | UV/IR Dual Spectrum | UV or IR Single Channel |
| Supply Voltage | 18–32 V DC | 24 V DC Nominal |
| Output Signal | 4–20 mA / Relay | 4–20 mA / Relay |
| Mounting Interface | Standard TS Series Bracket | Standard TS Series Bracket |
| Terminal Wiring | Compatible — verify polarity | 3-wire loop |
| Communication Protocol | Analog / Digital (HART optional) | Analog |
| Hazardous Area Rating | ATEX / IECEx Zone 1 & 2 | Zone 1 & 2 |
| Commissioning Requirement | Sensitivity calibration required | Factory pre-set |
| Retrofit Recommendation | Direct replacement; update panel map | — |
| Warranty | 12 Months from shipment | — |
Retrofit Planning for Existing Automation Systems
A successful FS-TSGAS-1624 retrofit begins well before the detector arrives on site. Engineers should pull the existing loop drawing and confirm that the field cable supports the detector’s 18–32 V DC supply range. In most TS Series installations, the power feed originates from a dedicated 24 V DC rail on the Honeywell FS-TSMC-1001 fire and gas controller or an equivalent panel-mounted power supply module. Verify that the available current budget on that rail accommodates the FS-TSGAS-1624’s quiescent draw before proceeding.
Terminal block assignments on the FS-TSGAS-1624 follow the standard TS Series three-wire convention: positive supply, negative return, and signal common. However, field technicians should cross-reference the existing loop termination against the replacement unit’s wiring diagram, as some early-generation TS Series detectors used a reversed signal polarity convention. Incorrect polarity will not damage the unit but will produce a fault condition at the Honeywell FS-TSMC-1001 or FS-TSMC-2001 panel until corrected.
Where the existing system includes a Honeywell FS-TSCM-0001 communications module or a Modbus RTU gateway, confirm that the FS-TSGAS-1624’s analog output range (4–20 mA) maps correctly to the panel’s configured input scaling. If the legacy detector was configured for a non-standard span, the panel’s I/O card — typically a Honeywell FS-TSIO-0801 or equivalent analog input module — will require a span recalibration to match the replacement unit’s output curve.
For sites running a distributed control system (DCS) backbone, the FS-TSGAS-1624’s 4–20 mA signal can be terminated directly at the DCS marshalling cabinet without additional signal conditioning, provided the field cable length and loop resistance remain within specification. Sites that have migrated to HART-enabled infrastructure can optionally enable the FS-TSGAS-1624’s HART layer for remote diagnostics and calibration without breaking the 4–20 mA loop.
Rack and backplane considerations are minimal for this detector type, as the FS-TSGAS-1624 is a field-mounted unit rather than a card-slot module. However, if the retrofit is part of a broader control cabinet upgrade that also involves replacing a Honeywell FS-TSRM-0401 relay module or a Honeywell FS-TSPS-0241 power supply, sequence the detector replacement last to ensure the panel is fully energized and stable before the new detector is commissioned. HMI screens tied to the detector’s zone should be updated to reflect the new detector tag and alarm setpoints before the system is returned to service.
Downtime Control During System Migration
Minimizing process interruption during a flame detector replacement requires a structured hot-swap protocol. Begin by placing the affected detection zone into maintenance bypass mode at the Honeywell FS-TSMC-1001 or equivalent fire and gas controller. This suppresses spurious alarms during the physical swap without disabling the broader fire and gas system. Document the bypass activation time in the site’s permit-to-work system and notify the control room.
With the zone bypassed, disconnect the field cable at the detector head — not at the junction box — to preserve the loop integrity for continuity testing after installation. Mount the FS-TSGAS-1624 onto the existing bracket, reconnect the three-wire loop, and perform a point-to-point continuity check before re-energizing. Once power is restored, allow the detector a minimum two-minute warm-up period before releasing the maintenance bypass.
Functional verification should include a UV/IR lamp test using the manufacturer-approved test lamp to confirm the detector’s response threshold and alarm relay operation. Log the test result against the detector’s serial number and update the site’s fire and gas cause-and-effect matrix if the replacement unit’s response time differs from the legacy specification. The entire swap sequence — from bypass activation to functional test sign-off — can typically be completed within 45 to 90 minutes per detector point, keeping total zone downtime well within a standard maintenance window.
All FS-TSGAS-1624 units supplied by SMARTNEXMSK are pre-tested prior to shipment and include a 12-month warranty covering manufacturing defects. Each unit ships with a factory test certificate and a calibration record to support site acceptance testing and regulatory documentation requirements.
Retrofit Support FAQ
Q: Is the FS-TSGAS-1624 a direct drop-in replacement for all TS Series flame detectors?
A: The FS-TSGAS-1624 is mechanically compatible with standard TS Series mounting brackets and uses the same three-wire 4–20 mA loop convention. However, technicians should verify supply voltage range, signal polarity, and panel input scaling before installation, as early-generation TS Series variants may have non-standard configurations.
Q: Does the replacement unit require reprogramming of the fire and gas controller?
A: In most cases, no controller reprogramming is required if the replacement unit’s output range and alarm thresholds match the legacy detector’s configured values. If the FS-TSGAS-1624’s sensitivity or response time differs from the original specification, the panel’s alarm setpoints and cause-and-effect logic should be reviewed and updated accordingly.
Q: What wiring checks are mandatory before energizing the FS-TSGAS-1624?
A: Confirm supply voltage at the detector terminals (18–32 V DC), verify signal polarity against the loop drawing, check loop resistance against the cable specification, and ensure the field cable shield is terminated at one end only to prevent ground loops. These checks apply whether the installation is a direct replacement or part of a broader I/O expansion project.
Q: What does the 12-month warranty cover, and what documentation is provided?
A: The 12-month warranty covers manufacturing defects and component failures under normal operating conditions. Each unit is supplied with a factory test certificate, a calibration record, and a shipment inspection report. Warranty claims are processed through SMARTNEXMSK’s after-sales support team, with replacement units dispatched within five business days of claim approval.
© 2026 SMARTNEXMSK. All rights reserved.
Original Source: https://smartnexmsk.com
Contact: sales@smartnexmsk.com | +86 18259474341
