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2. Introduction
2.1 Searchpoint Optima Plus
Searchpoint Optima Plus is an infrared hydrocarbon gas detector suitable for use in hazardous areas. It has
worldwidecerticationapprovalsincludingIECEx,ATEX,ULandCSA.
It uses the principle of infrared absorption to detect hydrocarbon gases and vapours in various
concentration ranges.
Standard weather
protection
Certification label
Gas measuring path
Inlet / outlet for
remote gassing
cell
Optional remote gassing cell (use for
gas testing or % v/v monitoring)
Mounting thread
(M25 or ¾ NPT)
Searchpoint Optima Plus has a robust
stainless steel enclosure with an ingress
protection level of IP66 and IP67.
Dependingonthecerticationoption,it
has an M25 or ¾ NPT mounting thread.
Searchpoint Optima Plus has a 4-20 mA
signal output that corresponds to 0-100
%FSD. Output values below 4 mA
indicate fault, warning and inhibit.
Searchpoint Optima Plus is supplied
calibratedandlinearisedforaspecic
target gas. A wide selection of gases
isavailablein0–100%LELrange,as
well as some ppm range options. The
range0–100%v/vmethaneisavailable
exclusively for use in sampling systems.
SearchpointOptimaPluscancommunicatewiththeSHC1HandheldInterrogator,whichcanbeusedto
accesscomprehensivediagnosticinformation,andtocarryoutcalibrationandconguration.Asanoption,
HART
®
communicationsareavailabletoperformthesamefunctionseitherusingaHART
®
handheld device
or from a central control room.
Note:SearchpointOptimaPluscanbeinstalled,commissionedandfunctionallytestedusingonlythe
4-20mAoutput.However,conguration,calibrationandfaultdiagnosisrequireeithertheSHC1Handheld
Interrogator,HART
®
communications or the XNX Universal Transmitter.