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Honeywell Searchpoint Optima Plus fixed infrared gas detector

Honeywell Searchpoint Optima Plus point-type infrared hydrocarbon detector. IP66/67, 316 stainless steel, 4-20mA optional HART/Modbus, resi…

Honeywell Searchpoint Optima Plus fixed infrared gas detector
Honeywell · Fixed gas detector

Honeywell Searchpoint Optima Plus fixed infrared gas detector

Honeywell Searchpoint Optima Plus point-type infrared hydrocarbon detector. IP66/67, 316 stainless steel, 4-20mA optional HART/Modbus, resi…

ModelSearchpoint Optima Plus
BrandHoneywell
CategoryFixed gas detector
Target gasesHydrocarbon flammable gases & vapours (incl. many solvents); ethylene version available
Sensing principleDual-channel fully compensated point infrared (NDIR)
Measuring range0–100% LEL
Response timeMethane: T50 < 3–4.5 s, T90 < 4–6.5 s (with weather protection, by revision)
Accuracy (typical)HC: baseline <±1% FSD, 50% FSD <±2% FSD; Ethylene: baseline <±2% FSD, 50% FSD <±3% FSD
Ingress protectionIP66 / IP67
Certified operating temp.-40°C ~ +65°C
Power supply18–32 VDC (nominal 24 VDC), <4.5 W max
Outputs4-20mA (sink/source); optional HART; optional RS485 Modbus (via DVC/DX / XNX)
Housing316 stainless steel
Weight1.6 kg
ApprovalsATEX / IECEx / UL / CSA / CCCF / MED etc.; functional safety up to SIL 2 (by variant)

Product details

Honeywell Searchpoint Optima Plus is designed for potentially explosive environmentsPoint-type infrared hydrocarbon detector, suitable for offshore oil and gas platforms, FPSOs, tankers, onshore terminals, refineries, LNG/LPG tanking, compressed gas metering stations, gas turbine power plants, as well as solvent printing and painting sites. The infrared principle responds quickly, is fault-safe, and is not affected by catalytic combustion poisoning. It can operate in an oxygen-free atmosphere, significantly reducing daily maintenance costs.

Product features

  • Dual-channel fully compensated infrared optical system, long-term stability with no moving parts
  • Fail-safe design, advanced internal diagnostics, and false alarm suppression (✓² Software™)
  • Optical self-heating and dynamic temperature control suppress condensation; Optical pollution early warning improves availability
  • 4-20mA (sink/source), optional HART®; Modbus can be implemented via DVC/DX or XNX
  • 316 stainless steel casing, protection rating IP66/IP67, certified temperature -40°C~65°C
  • Methane response: T50 is approximately <3–4.5 s, T90 approximately <4–6.5 s (including weather protection, depending on version)
  • Factory pre-calibration for over 100 types of hydrocarbons and vapors; Hydrocarbon and ethylene versions are available
  • Certifications cover ATEX, IECEx, UL, CSA, CCCF, Classification Society MED, etc. (by order number)

Main technical parameters

  • Range: 0–100% LEL (with various special ranges and solvent calibration available)
  • Power supply: 18–32 VDC (nominal 24 VDC), maximum power consumption about 4.5 W
  • Output: 4-20mA; Optional HART; Optional RS485 Modbus (via wiring unit)
  • Accuracy (typical): Hydrocarbon baseline <±1%FSD,50%FSD <±2%FSD; Vinyl baseline <±2%FSD,50%FSD <±3%FSD
  • Weight: approximately 1.6 kg; Material: 316 stainless steel
  • Diagnosis / Calibration: Certified handheld device SHC-1 or HART/XNX

Typical applications

  • Offshore oil and gas platforms, FPSOs, tankers, and onshore oil and gas terminals
  • Refinery, petrochemical, LNG/LPG tanking, and compressed gas metering stations
  • Places with risks of catalytic poisoning or maintenance difficulties, such as gas turbine power generation, solvent printing and coating, and distillation

Ordering code selection guide

  • Complete kit ordering codes start with 2108N Introduction: Certification area, hydrocarbon/ethylene calibration, whether remote ventilation unit or flow hood is included, suffix N(Standard) or H(HART)
  • Example:2108N4000H = ATEX hydrocarbon calibration Standard protective attachment HART
  • Junction boxes (DVC100 / DX100), weather protection, air duct kits, SHC-1 handheld controllers, and spare probes can be ordered separately; see this page for 'Order Number Selection Reference'

Product information, reliable special invoices, and one-year warranty, supporting spare parts supply and technical disclosure. Welcome to inquire for a quote, model selection, and quotation.

Standard calibrations

Factory calibrations for 100+ hydrocarbon gases and vapours are available. Table shows common standards; ask us for the full list.

Gas / vapourTypical range / version
Methane100% LEL / 100% UEG / 10% v/v / 100% v/v
Ethane100% LEL / 100% UEG
Propane100% LEL / 100% UEG / various %v/v & ppm ranges
Butane100% LEL / 100% UEG
Ethylene / Ethene100% LEL / 100% UEG (ethylene version)
Solvents & special calibrationsEthanol, acetone, hexane, methanol, aviation fuel mixes, etc. (LEL/UEG variants)

Part number selection

Common Searchpoint Optima Plus part numbers (kits, termination units, accessories, tools, spare detectors). Suffix H = HART output. Confirm certification and current configuration before ordering.

CategoryPart numberDescription
Complete kit2108N4000NATEX, hydrocarbon calibration, dust barrier + weather housing + deluge/heat shade
Complete kit2108N4000HATEX, hydrocarbon calibration, standard protection, HART output
Complete kit2108N4001NATEX, ethylene calibration, standard protection
Complete kit2108N4001HATEX, ethylene calibration, standard protection, HART
Complete kit2108N4010NATEX, hydrocarbon calibration, including remote gassing cell
Complete kit2108N4010HATEX, hydrocarbon calibration, remote gassing cell, HART
Complete kit2108N4011NATEX, ethylene calibration, including remote gassing cell
Complete kit2108N4011HATEX, ethylene calibration, remote gassing cell, HART
Complete kit2108N5000NATEX, hydrocarbon, remote sampling with flow housing
Complete kit2108N5000HATEX, hydrocarbon remote sampling, HART
Complete kit2108N5001NATEX, ethylene, remote sampling with flow housing
Complete kit2108N5001HATEX, ethylene remote sampling, HART
Complete kit2108N4100NUL/Inmetro, hydrocarbon calibration, standard protection
Complete kit2108N4100HUL/Inmetro, hydrocarbon calibration, HART
Complete kit2108N4101NUL/Inmetro, ethylene calibration, standard protection
Complete kit2108N4101HUL/Inmetro, ethylene calibration, HART
Complete kit2108N4110NUL/Inmetro, hydrocarbon, remote gassing cell
Complete kit2108N4110HUL/Inmetro, hydrocarbon, remote gassing cell, HART
Complete kit2108N5100NUL/Inmetro, hydrocarbon remote sampling
Complete kit2108N5100HUL/Inmetro, hydrocarbon remote sampling, HART
Complete kit2108N4200NFM/CSA, hydrocarbon calibration, standard protection
Complete kit2108N4200HFM/CSA, hydrocarbon calibration, HART
Complete kit2108N4210NFM/CSA, hydrocarbon, remote gassing cell
Complete kit2108N4210HFM/CSA, hydrocarbon, remote gassing cell, HART
Complete kit2108N5200NFM/CSA, hydrocarbon remote sampling
Complete kit2108N5200HFM/CSA, hydrocarbon remote sampling, HART
Complete kit2108N4600NCCCF (China), hydrocarbon calibration, standard protection
Complete kit2108N4600HCCCF (China), hydrocarbon calibration, HART
Complete kit2108N4601NCCCF (China), ethylene calibration, standard protection
Complete kit2108N4601HCCCF (China), ethylene calibration, HART
Complete kit2108N4610NCCCF (China), hydrocarbon, remote gassing cell
Complete kit2108N4610HCCCF (China), hydrocarbon, remote gassing cell, HART
Complete kit2108N4400NMarine MED, hydrocarbon calibration, standard protection
Complete kit2108N4400HMarine MED, hydrocarbon calibration, HART
Complete kit2108N4401NMarine MED, ethylene calibration, standard protection
Complete kit2108N4401HMarine MED, ethylene calibration, HART
Termination unit2104B6211DVC100i MK2 termination unit, ATEX
Termination unit2104B6212DVC100M MK2 termination unit, ATEX with Modbus
Termination unit2104B6205DVC100i termination unit, SAA
Termination unit2104B6206DVC100M termination unit, SAA with Modbus
Termination unit2104B2381DX100i XP termination unit, UL with IS barrier
Termination unit2104B2382DX100M XP termination unit, UL with Modbus
Termination unit00780-A-0100Bartec OTB122 junction box, ATEX
Termination unit04200-A-1040Optima junction box adaptor plate
Accessory2108B0259Dust barrier
Accessory2108B0276Weather housing labyrinth
Accessory2108B0280Storm baffle (ATEX)
Accessory2108D0275Deluge / heat shade
Accessory2108B0282Flow housing (remote sampling)
Accessory2108B0282STFlow housing, stainless steel
Accessory2108D0258Gassing cover (for calibration)
Accessory2108D0272Calibration cap
Accessory2104B0349Duct mount kit (ATEX + DVC100 MK2)
Accessory04200-A-1015Duct mount kit (ATEX + Bartec housing)
Accessory2442-0016US duct mount kit (UL version)
Interrogator / tool04230-A-1001Hand-held interrogator SHC-1, ATEX (4V0)
Interrogator / tool2104B2351Hand-held interrogator SHC-1, UL (4V0)
Interrogator / tool2104B2354Hand-held interrogator SHC-1, CSA (4V1)
Interrogator / tool04230-A-1010Hand-held interrogator SHC-1, SAA (4V0)
Interrogator / tool04230-A-1025SHC protection device module and lead
Interrogator / tool2104B6250SHC calibrator connector system 10 m
Interrogator / tool2108B1455Hand-held EEPROM upgrade (4V0)
Spare detector2108B2001NSpare detector: hydrocarbon Optima Plus, ATEX
Spare detector2108B2001HSpare detector: hydrocarbon Optima Plus HART, ATEX
Spare detector2108B2003NSpare detector: ethylene Optima Plus, ATEX
Spare detector2108B2003HSpare detector: ethylene Optima Plus HART, ATEX
Spare detector2108B2031NSpare detector: hydrocarbon Optima Plus, CCCF
Spare detector2108B2031HSpare detector: hydrocarbon Optima Plus HART, CCCF
Spare detector2108B2101NSpare detector: hydrocarbon Optima Plus, UL/Inmetro
Spare detector2108B2101HSpare detector: hydrocarbon Optima Plus HART, UL/Inmetro

How to order

For model selection, calibration accessories or bulk quotes, call (8610) 13241121312 or use the inquiry form.

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