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Minimax

UniVario FMX5000 IR

Smoke Detector · Fire Detection Systems

Technical data from manufacturer or class sources · not yet verified by a person

Minimax UniVario FMX5000 IR — Flame Detection - Infrared (Industrial).

Specifications

Technical data.reference — unverified

Type3-Channel Infrared Flame Detector
Detection PrincipleInfrared optical radiation analysis with three-way optical test
Response SpeedExtremely fast flame detection
Wavelengths950 nm and 4300 nm infrared ranges
Disturbance FilteringFilters hot machine surfaces, sun radiation, welding operations
MicroprocessorIntelligent signal processing with continuous analysis
CertificationsFM, VdS, ATEX, IECEx approved
Inspection

Inspector Detail

Common issues

  • False alarms from hot machinery surfaces, welding flashes, or reflected sunlight triggering the IR sensor
  • Missed detection from optical window fouling by oil film, dust, or salt deposits
  • Sensor drift or ageing reducing sensitivity over time
  • Cable and connector corrosion in the engine room environment
  • Loop/power supply fault causing the detector to drop offline

Inspection checklist

  • Clean the optical window and check for scratches or fogging
  • Function-test with the maker's approved test lamp/IR test source
  • Verify the alarm signal reaches the fire panel and any linked shutdown (ventilation, fuel quick-closing valves)
  • Check the detector's zone/address on the fire panel matches the as-built fire control plan
  • Inspect cable glands and wiring for corrosion or damage
  • Confirm the detector's field of view is not obstructed by newly installed equipment or piping
  • Check supply voltage at the detector terminals against the maker's specification

Service intervals

Functional testtypically every 3-6 months per the SOLAS/flag fire detection testing regime, or per the maker's recommendation
Optical window cleaningevery 1-3 months in dirty/oily engine room environments, condition-based
Full sensitivity check/serviceper the maker's schedule, commonly annually or per class requirement

Critical spares

  • Replacement detector unit of the same type/approval
  • Mounting bracket/gasket kit
  • Cable glands and terminal block
  • Test lamp/IR test source consumables for the maker's functional test procedure

Safety

  • Crew must understand the false-alarm handling procedure to avoid unnecessary automatic shutdowns during testing
  • Follow the detector isolation procedure during nearby hot work, then confirm reinstatement afterward
  • Do not disable detection without a compensating fire watch per the ship's SMS procedure

Class survey

Fire detection and alarm systems are checked at survey for correct zone coverage, alarm transmission to the bridge/fire panel, and functional test records; surveyors typically want to see a log of periodic detector testing under the approved maintenance plan.

Estimated lifetime: Flame detectors of this type are typically rated by the maker for around 5-10 years of service before recommended replacement, subject to environment and periodic functional testing - confirm against Minimax's own datasheet.

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