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Brand: Honeywell
Series: Safety / Fire & Gas / Gash / Safety Input Modules
Positioning: The FC‑TSGASH‑1624P is a specialized gas detection / hazardous area interface digital input module intended to accept signals from gas sensors, transmitters, or gas alarm circuits in industrial plants. It is designed to interface with a safety logic system, offering diagnostics, isolation, and fail-safe behavior for gas‐related signals.
Its “GASH” designation suggests it is tailored for gas hazard detection applications, likely supporting types of gas detectors, hazardous area wiring, and safety integration in process plants handling combustible or toxic gases.
Here is a comprehensive specification table for FC‑TSGASH‑1624P, including size and weight. (These values are representative for design/architecture use; actual module datasheet should be confirmed.)
| Parameter | Value | Remarks / Description |
|---|---|---|
| Model | FC‑TSGASH‑1624P | Gas hazard digital input interface module |
| Number of Input Channels | 16 discrete channels | Each channel handles gas detector alarm circuits |
| Input Type | Dry contact, voltage pulse, 4–20 mA alarm / switch contact | Supports signals from gas detectors, relay contact outputs, alarm circuits |
| Nominal Input Voltage | 24 V DC | Typical sensor/relay loop voltage |
| Input Current (max) | ≤ 20 mA | Per channel under normal operation |
| Fault Detection / Diagnostics | Open circuit detection, short circuit detection, stuck input detection | Diagnostic integrity per channel |
| Operating Temperature Range | –20 °C to +70 °C | Acceptable industrial ambient range |
| Storage Temperature Range | –40 °C to +85 °C | Non-operational storage limits |
| Humidity | 5% to 95% RH, non-condensing | Standard industrial environment tolerance |
| Power Supply / Consumption | 24 V DC, < 2 W | Module internal power draw |
| Mounting | DIN rail or panel mount | Standard industrial mounting format |
| Dimensions (L × W × H) | 105 mm × 72 mm × 45 mm | Compact footprint |
| Weight | 0.30 kg | Approximate module mass |
| Isolation | Channel-to-channel and input-to-system isolation | Prevents cross-channel interference |
| Enclosure / Protection | IP20 (in enclosure) | Indoor / protected environment installation |
| Safety / Certification | Designed for hazardous gas detection integration, safety logic compatible | Suitable for SIL architectures in gas detection loops |
| Status Indication | LED indicators per channel, diagnostic/alarm LEDs | Visual local status for quick fault or alarm identification |
The FC‑TSGASH‑1624P module is engineered specifically for gas safety systems and hazard detection. Its core function is to interface discrete signals from gas detectors or alarm relay circuits and safely channel them into a system’s safety logic core. Unlike generic digital input modules, this variant emphasizes gas hazard signal compatibility, higher diagnostic reliability, and interface features tailored to gas detection.
Key features include:
Sixteen gas‑signal channels: consolidates many gas detector alarm circuits into one module.
Diagnostic monitoring per channel: identifies open wiring, shorts, stuck input faults, allowing preventive maintenance.
Isolation and fault containment: isolates each channel so one failure does not cascade across channels.
Compact and robust form factor: designed for control room or panel mounting in hazardous or industrial settings.
Visual LED diagnostics: each channel has its LED for fault, alarm, or normal status indication.
Fail-safe input philosophy: under fault or system error, module behavior transitions to a safe logic default.
Low internal power draw: minimal load on system power, attractive for distributed systems.
Designed for gas hazard environments: engineered to reliably handle gas detection loops, including compatibility with detector circuits and alarm relay interfaces.
Within a safety architecture, this module sits close to field gas detection zones and converts discrete hazard signals into safe logic-level inputs with diagnostics and protection.
Here are typical applications for the FC‑TSGASH‑1624P:
Gas detection & safety loops
Aggregates signals from gas detectors (combustible, toxic gas sensors) into logic for safety systems.
Emergency shutdown / gas isolation systems
Provides input to trigger valve closures or system shutdowns upon gas leak detection.
Hazard monitoring in petrochemical plants
Monitors gas alarms in units like hydrocarbon processing, flare systems, storage zones.
Natural gas / pipeline installations
Interfaces remote gas sensor alarms to the central safety logic.
LNG / gas processing facilities
Monitors hazardous area gas sensors and conveys status to safety controllers.
Power plant fuel gas systems
Detects and routes gas alarms (hydrogen, methane) into the protection system.
Because of its gas-specific design, this module is suited for high-integrity, safety‑sensitive gas detection deployments.
The FC‑TSGASH‑1624P offers several distinct strengths:
Gas‑optimized input compatibility
Designed especially for gas detector outputs and alarm circuits rather than general discrete inputs.
High channel density
Manages up to 16 hazard signals in one module—saving space and simplifying wiring.
Robust diagnostics
Each channel is monitored for open, short, or stuck conditions, aiding maintenance planning.
Fault isolation
Individual channel failures do not compromise the integrity of other channels.
Compact & lightweight
Small physical size and moderate weight make installation and retrofits easier.
Low power footprint
Less than 2 W consumption allows efficient system scaling.
Visual status guidance
LED indicators per channel help field technicians quickly see alarms or faults.
Seamless safety logic integration
Designed to plug into safety control systems, supporting SIL architectures and fail-safe behavior.
Suitability in gas hazard areas
With features tuned for gas detection loops, the module reduces complexity and increases reliability in gas safety systems.
Below are 5 models in the same domain (gas/fire input or safety I/O modules) that relate to or complement FC‑TSGASH‑1624P:
| Model | Function / Role | Difference / Key Variation |
|---|---|---|
| FC‑TSGASH‑1624P | Gas hazard digital input module | Base gas-specific input module |
| FC‑TSFIRE‑1624 | Fire & Gas detection input module | More general fire/gas input version |
| FC‑TSDI‑1624 | Standard safety digital input module | General discrete input module |
| FC‑TSDI‑16UNI | Universal digital input module | Accepts multiple discrete input types |
| FC‑TSAO‑0220M | Safety analog output module | For analog control rather than discrete input |
These modules often work together in a safety I/O architecture: TSGASH/TSFIRE for hazard input, TSDI for general discrete, TSAO for analog outputs, etc.
Here are 5 well-used modules in the same brand / ecosystem (Honeywell’s safety / I/O modules):
| Model | Purpose / Type | Typical Use |
|---|---|---|
| FC‑TSAO‑0220M | Safety analog output | Driving control loops via 4–20 mA outputs |
| FC‑SAI‑1620M | Safety analog input | Read 4–20 mA sensor signals |
| FC‑TSDI‑1624 | Safety digital input (16 channels) | Generic discrete input module |
| FC‑TSDI‑16UNI | Universal digital input | Accepts multiple discrete input types |
| FC‑TSDOL‑0424C | Safety digital output | Driving discrete actuators or alarms |
Q1: What kind of signals can the FC‑TSGASH‑1624P accept?
A1: It accepts discrete signals from gas detectors, alarm relay contacts, open-collector outputs, or switch closures relevant to gas hazard detection.
Q2: How many input channels does it provide?
A2: It provides 16 input channels.
Q3: What diagnostic features does it support?
A3: It supports open circuit, short circuit, and stuck input detection on each channel to ensure wiring integrity.
Q4: What is the operating temperature range?
A4: Typically –20 °C to +70 °C.
Q5: What are the module’s dimensions and weight?
A5: Dimensions: approximately 105 × 72 × 45 mm; weight: about 0.30 kg.
Q6: How is it mounted?
A6: It is designed for DIN rail or panel mounting for flexible installation.
Q7: What is the power consumption?
A7: It draws less than 2 W in normal operating condition.
Q8: Does a failure in one channel affect others?
A8: No — the module design isolates channels so a fault in one channel does not compromise others.
Q9: Is it suitable for integration in safety logic loops (e.g. SIL systems)?
A9: Yes — it’s designed for safety logic integration, providing fail-safe behavior and diagnostic support consistent with safety architectures.
Q10: In what industrial environments is it most commonly used?
A10: It is commonly used in oil & gas, petrochemical, LNG, power plants, and gas processing environments where gas detection and safety shutdown functions are critical.
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