Honeywell Searchpoint Optima Plus Specifications

Searchpoint Optima Plus

Advanced infrared
point gas detector

Searchpoint
Optima Plus

Why Infrared?

• Failsafe operation

• Fast speed of response

• Reduced routine maintenance

• Immune to catalytic poisons

• Long operating life

• Works in inert atmospheres

Why Searchpoint Optima Plus
is the right choice...

• Experience gained from over
100,000 units installed worldwide

• Improved reliability

• Optional HART® over 4-20mA output

• Can detect a wide range of hydrocarbon
gases including solvents

• Increased reliability with no moving parts

• Increased stability from self
compensating optics

• Immune to long term component drift

• Remote functional gas test facility

• Certified for North American
and European Hazardous areas

• Increased false alarm rejection

• Increased uptime with
contaminated optics warning

• Dynamic Heating Control ensures
condensation free optics

• No undetected failures

• Improved diagnostics

• Integral event logging

• Reduced power consumption

• Certified to many hazardous area
classification schemes including:
European (ATEX), UL, CSA, IECEx
and more

Market leading point infrared Hydrocarbon
gas detector offering proven performance
and sensitivity

With over 40 years experience in the design,
manufacture, installation and maintenance of
point infrared gas detection, Honeywell Analytics
currently has a Worldwide installed base of over
100,000 infrared point Hydrocarbon gas
detectors in a wide spectrum of applications
from light industrial to the most demanding of
offshore petrochemical environments.

Searchpoint Optima Plus is an infrared point
Hydrocarbon gas detector certified for use in
potentially explosive atmospheres. The unit’s
infrared detection principle offers the fastest
speed of response and fail-to-safe operation,
ensuring that your plant is compliant, your
personnel are protected and your production
process can deliver maximum uptime. Reduced
routine maintenance, when compared with
conventional electro-catalytic based gas
detectors, provides low ongoing cost of
ownership. The development of advanced
internal fault diagnostics and false alarm rejection
algorithms ensures that Searchpoint Optima Plus
delivers the highest level of operational integrity.

Typical applications include environments that
may suffer from the presence of catalytic bead
poisons or inhibitors, or where there are harsh
environmental conditions forcing increased time
between routine maintenance, for example;
offshore oil and gas platforms, floating
production storage and offloading (FPSO)
vessels, tankers, onshore oil and gas terminals,
refineries, LNG / LPG bottling plants, gas
compressor / metering stations, gas turbine
power plants, refineries, solvent printing and
coating plants.

Over 100 gas and vapour calibrations are
available. For a list of detectable gases and
vapours, please contact our Customer Support
team or your local distributor.

Failsafe Hydrocarbon
Gas Detection

1. Optics Block

The 4-channel (dual compensated) optics-block is the
heart of the Searchpoint Optima Plus. It is specifically
designed to compensate for changes in the external
environment similar to 2-channel designs, but also
compensates for long term component drift such as
infrared sources and detectors. This provides the
Searchpoint Optima Plus with the most stable optics
design possible.

4.

2. Microprocessor

The microprocessor controls the operation of the
Searchpoint Optima Plus. The signal processing
and algorithms provide a new dimension in false
alarm rejection delivering the highest level of
operational integrity.

3. Heated Optics Plus Dynamic
Heating Control

Heated optic components, monitored via smart
electronics, eliminate condensation build up with power
saving features.

1.

2.

3.

4. Remote Gassing Cell

Factory fitting of this optional gassing cell within
the optical path allows the remote injection of
functional test gas to validate the performance of
a Searchpoint Optima Plus.

Remote Gas Sampling Systems

For monitoring remote or inaccessible locations
Searchpoint Optima Plus can be fitted with a flow housing
and engineered into a gas sampling system. Single-point
and multi-point systems are available for both hazardous
and non-hazardous areas.

Sunshade / Deluge Protection

This multi-purpose accessory supplied as
standard shields Searchpoint Optima Plus
from the extremes of operational environments
ensuring reliable operation.

Storm Baffle

This optional baffle reduces wind chill, salt and
dust build-up in exposed applications subjected
to high wind speeds e.g. Offshore HVAC intakes
and FPSO turrets etc.

Standard Weather Protection

This accessory supplied as standard, offers the
best compromise between water / dust ingress
and speed of response.

Dust Barrier

This barrier fitted inside the standard weather
protection provides additional protection
against the ingress of dust and contamination
entering the optical path.

Gassing Cover

The gassing cover enables confidence checking
of the Searchpoint Optima Plus. It provides a
close fit onto the standard weather protection
and can be installed without the use of any
special tools.

Calibration Cap

The calibration cap is required to
achieve accurate calibration of the
Searchpoint Optima Plus.

XNX Universal Transmitter

This device offers a local display and
non-intrusive access via a magnetic
switch. It has a HART® communications
output and optional Modbus,
Foundation Fieldbus or relays.

HALO Junction Box

This is an Ex e certified junction box,
with an LED light ring to provide a local
visual status indication, and an optional
non-intrusive HART® interface.

Other Accessories

Duct Mounting Kit

This mounting plate arrangement
enables installation of Searchpoint
Optima Plus with a duct/ventilation
system. It enables functional gas
testing without removing the
Searchpoint Optima Plus from
the ducting system.

Accessories

Termination / Mounting

Field Interrogation

Multi Purpose Hand Held
Interrogator (SHC-1)

This versatile commissioning /
maintenance tool is certified
for hazardous areas and used
to reconfigure Searchpoint Optima
Plus for different gases and fault
diagnostics. The same interrogator
can be used with the original
Searchpoint Optima and Searchline
Excel (open path gas detector)
reducing operator training.

SHC-1 Protection Device

This device provides electrical
protection for the SHC-1 when used
with conventional terminal housings
under a gas free permit to work
system.

Certified Junction Boxes

A full range of hazardous area certified
Ex e and Ex d junction boxes are
available.

HART®: Reduce your operational costs and gain
enhanced device visibility

Searchpoint Optima Plus is available with HART® over 4-20mA output.
This communication aspect allows Searchpoint Optima Plus to deliver a wide
range of added value benefits.

What is HART®?

HART® (Highway Addressable Remote Transducer) is a widely used digital
communications protocol, which allows users to access live data, status
indications and diagnostic information from intelligent field devices. It works by
superimposing a digital signal on the existing analogue signal. A key benefit
of HART® is the fact no additional field cabling is required, because HART®
uses the device’s 4-20 mA signal cable. HART® can also help to reduce
costs in a number of ways. For example, it eliminates the need for proprietary
handheld devices; a field engineer can use a single HART® handheld device
to access any HART® enabled equipment on site. The HART® signal can be
interrogated from anywhere in the current loop, and this means that users can
access diagnostic information without going into the field. This means that if
maintenance is required, the scope of work is known before the engineer goes
to the device, potentially helping to reduce ongoing maintenance costs.

Searchpoint Optima Plus’ HART® interface speaks the
language of gas detection

Searchpoint Optima Plus’ HART® user interface is designed for gas detection
using familiar terminology. Honeywell Analytics’ engineers have designed
the Device Description (DD) file to provide easy to understand messaging on
HART® host devices, guiding the user through operations and eliminating time
wasted referring to manuals to “decode” generic HART® messages.

Searchpoint Optima Plus and its DD file are registered with the HART
Communication Foundation, having passed the Foundation’s rigorous test
program.

®

Available functions:

• View gas reading, configuration and diagnostic information

• Bump test

• mA loop calibration

• Gas calibration

• Simulate alarm, fault or warning

• Set device tag, ID and description

• View active warnings / faults and event history

• Force mA output to a set level for testing

• Configure real time clock

• Configure inhibit, warning and overrange levels

• Configure alarm threshold

• Change target gas

• Password protected access

Benefits of using HART

• Access full information from Searchpoint Optima Plus, anywhere in the
current loop

• No associated infrastructural costs, unlike some other communications
protocols; additional communication is achieved without the need for
extra cabling

• Save on set up costs by eliminating the need for proprietary handheld
devices

• Save on long-term costs by enabling proactive not reactive maintenance

• Save a field engineer investigation trip - “know before you go”

®

Technical Summary

Searchpoint Optima Plus Specification

Measuring Range 0-100% LEL, wide selection of Hydrocarbon gas and vapour calibrations. Different measuring ranges and solvent

calibrations available for specialist applications

Signal Output 4-20mA autosensing sink or source
Inhibit 1-3mA (Default 2mA)
Warning 0-6mA (Default 3mA *)
Fault 0mA (HART
Over Range 20-21.5mA (Default 21mA)
Digital Output Optional Multidrop Modbus RS485 (via XNX, Optional HART
Material 316 stainless steel

Weight 1.6kg

Accuracy
Optima Plus (Hydrocarbon) Baseline < ±1% FSD, 50% FSD <±2% FSD
Optima Plus (Ethylene) Baseline < ±2% FSD, 50% FSD <±3% FSD

Repeatability < ±2% FSD at 50% FSD

Linearity < 5% FSD

Response Time T50 < 3 seconds, T90 < 4 seconds (methane)

Operational and Certified -40°C to +65°C temperature range

®

units adjustable to 1mA)

®

over 4-20mA output (HART® version 7)

Long Term Stability
(as defined in
EN 60079-29-1)

Drift Over Temperature
Range (-40 °C to 65 °C)

Baseline Methane 100 %LEL Range: ≤ ± 2 %FSD

Ethylene 100 %LEL Range: ≤ ± 4 %FSD

50 %FSD Methane 100 %LEL Range: ≤ ± 4 %FSD

Ethylene 100 %LEL Range: ≤ ± 5 %FSD

Baseline ≤ ± 2 %FSD

50 %FSD Methane 100 %LEL Range: ≤ ± 0.131 %FSD per °C

Ethylene 100 %LEL Range: ≤ ± 0.078 %FSD per °C

Variation with Pressure 0.1% (of reading) per mbar

Power Supply 18-32Vdc (24Vdc nom), < 4.5W max

Environmental Protection IP 66 / 67

®

Diagnostics Via certified Hand-held Interrogator, XNX or optional HART

communications

(and Re-calibration)

Safety Approvals ATEX: BAS99ATEX2259X

T96°C (T
T86°C (T
IP 66/67

II 2 GD Ex d op is IIC Gb Ex tb IIIC Db

-40°C to +65°C)

amb

-40°C to +55°C)

amb

UL / CSA: Class 1, Div 1, groups B, C, and D (-40°C to +65°C)
IECEx: II 2 GD Ex d op is IIC Gb Ex tb IIIC Db T86°C (T
CU-TR-EX (Russian Customs Union)

-40°C to +55°C) or T96°C (T

amb

Performance Approvals EN 60079-29-1 (BVS 03 ATEX G 016 X), CSA C22.2 152., FM ANSI/ISA-12.13.01.

Functional Safety IEC61508 Safety Integrity Level 2

EMC Compliance EN 50270:2006
Software EN 50271:2010

Marine Approvals Marine Equipment Directive (MED), type approvals from DNV, BV, ABS, Lloyd’s Register

* Note for ATEX compliance the warning value should not be set between 3 and 5mA

Installation Options

1

Hazardous Area

Safe Area

2 3

Hazardous Area Hazardous Area

Safe Area Safe Area

4 5

Hazardous Area

-40°C to +65°C) IP66/67

amb

Safe Area

Hazardous Area

Safe Area

Power

4-20mA

Controller

4-20mA 4-20mA

Standard HART
handheld device

Controller

®

HART

SCADA

®

Controller

4-20mA

4-20mA

Modbus

Controller

SCADA

DCS/PLC

Modbus

Modbus

Honeywell Analytics Gas Detection

Honeywell Analytics is able to provide gas detection solutions to meet the requirements of all
applications and industries. Contact us in the following ways:

Headquarters

Europe, Middle East, Africa

Life Safety Distribution AG
Javastrasse 2
8604 Hegnau
Switzerland
Tel: [phone]
Fax: [phone]

[e-mail]

Customer Service:

Tel: [phone]
Tel: [phone] (Alternative number)
Fax: [phone]
Middle East Tel: [phone] (Fixed Gas Detection)
Middle East Tel: [phone] (Portable Gas Detection)

(Freephone number)

Technical Support Centres

Honeywell Analytics Ltd.
4 Stinsford Road

Nufeld Industrial Estate

Poole, Dorset, BH17 0RZ
United Kingdom
Tel: [phone]
Fax: [phone]

Honeywell Analytics
ZAC Athélia 4 - 375 avenue du Mistral
Bât B, Espace Mistral
13600 La Ciotat
France
Tel: [phone]
Fax : [phone]

Americas

Honeywell Analytics Distribution Inc.
405 Barclay Blvd.
Lincolnshire, IL 60069
USA
Tel: [phone]
Toll free: [phone]
Fax: [phone]

[e-mail]

Honeywell Analytics
Elsenheimerstrasse 43
80687 München
Germany
Tel: [phone]
Fax: [phone]

Asia Pacic

Honeywell Analytics

Asia Pacic

#701 Kolon Science Valley (1)
43 Digital-Ro 34-Gil, Guro-Gu
Seoul 152-729
Korea
Tel: [phone]
Fax: [phone]
India Tel: [phone]

[e-mail]

Honeywell Analytics
P.O. Box-45595
6th Street
Musaffah Industrial Area
Abu Dhabi
UAE
Tel: [phone]
Fax: [phone]

EMEA: [e-mail]
US: [e-mail]
AP: [e-mail]

www.honeywellanalytics.com
www.raesystems.com

Honeywell Analytics

Experts in Gas Detection

Please Note:

While every effort has been made to ensure accuracy in this publication, no responsibility can be accepted for errors or
omissions. Data may change, as well as legislation, and you are strongly advised to obtain copies of the most recently
issued regulations, standards, and guidelines. This publication is not intended to form the basis of a contract.

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